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TP-Link TL-SL2428 User's Manual

1. Step Operation Description 1 Configure the Required On VLAN 802 1Q VLAN gt Port Config page configure Link Type of the the link type of Port 7 Port 6 and Port 8 as ACCESS TRUNK and ports ACCESS respectively 2 Create VLAN10 Required On VLAN gt 802 1Q VLAN gt VLAN Config page create a VLAN with its VLANID as 10 owning Port 6 and Port 8 3 Create VLAN20 Required On VLAN gt 802 1Q VLAN gt VLAN Config page create a VLAN with its VLANID as 20 owning Port 6 and Port 7 Return to CONTENTS 51 Chapter 7 Spanning Tree STP Spanning Tree Protocol subject to IEEE 802 1D standard is to disbranch a ring network in the Data Link layer in a local network Devices running STP discover loops in the network and block ports by exchanging information in that way a ring network can be disbranched to form a tree topological ring free network to prevent packets from being duplicated and forwarded endlessly in the network BPDU Bridge Protocol Data Unit is the protocol data that STP and RSTP use Enough information is carried in BPDU to ensure the spanning tree generation STP is to determine the topology of the network via transferring BPDUs between devices To implement spanning tree function the switches in the network transfer BPDUs between each other to exchange information and all the switches supporting STP receive and process the received BPDUs BPDUs carry the information that is needed for switches
2. Step Operation 1 If the priority of the BPDU received on the port is lower than that of the BPDU if of the port itself the switch discards the BPDU and does not change the BPDU of the port If the priority of the BPDU is higher than that of the BPDU of the port itself the switch replaces the BPDU of the port with the received one and compares it with those of other ports on the switch to obtain the one with the highest priority Table 7 1 Comparing BPDUs e Selecting the root bridge The root bridge is selected by BPDU comparing The switch with the smallest root ID is chosen as the root bridge e Selecting the root port and designate port The operation is taken in the following way Step Operation 1 For each switch except the one chosen as the root bridge in a network the port that receives the BPDU with the highest priority is chosen as the root port of the switch 2 Using the root port BPDU and the root path cost the switch generates a designated port BPDU for each of its ports Root ID is replaced with that of the root port Root path is replaced with the sum of the root path cost of the root port and the path cost between this port and the root port The ID of the designated bridge is replaced with that of the switch The ID of the designated port is replaced with that of the port 3 The switch compares the resulting BPDU with the BPDU of the desired port whose rol
3. Ano The SNMP User and its Group should have the same Security Model and Security Level 10 1 5 SNMP Community SNMP v1 and SNMP v2c adopt community name authentication The community name can limit access to the SNMP agent from SNMP network management station functioning as a password If SNMP v1 or SNMP v2c is employed you can directly configure the SNMP Community on this page without configuring SNMP Group and User Choose the menu SNMP gt SNMP Config SNMP Community to load the following page Community Config Community Name 16 characters maximum a ccess read only w MIB View viewDefault v Community Table Select Community Name ACCESS MIB View Operation Al Note The default MIB view of community is viewDefault Figure 10 7 SNMP Community The following entries are displayed on this screen gt Community Config Community Name Enter the Community Name here Access Defines the access rights of the community 108 e read only Management right of the Community is restricted to read only and changes cannot be made to the corresponding View e read write Management right of the Community is read write and changes can be made to the corresponding View MIB View Select the MIB View for the community to access gt Community Table Select Select the desired entry to delete the corresponding Community It is multi optional Community Name Displays the Community Name
4. Run Time 200sec CurrentPort 3 Current Utilization 0 100 90 80 70 60 50 40 30 20 10 0 Graphic Example E Rx E Tx Orx Ox Figure 4 3 Bandwidth Utilization gt Bandwidth Utilization Rx Select Rx to display the bandwidth utilization of receiving packets on this port Tx Select Tx to display the bandwidth utilization of sending packets on this port 4 1 2 Device Description On this page you can configure the description of the switch including device name device location and system contact Choose the menu System System Info Device Description to load the following page Device Description Device Name TL SL2428 Device Location SHENZHEN Apply System Contact www tp link com Note The Device Name Location and Contact should be not more than 32 characters Figure 4 4 Device Description The following entries are displayed on this screen gt Device Description Device Name Enter the name of the switch 12 Device Location Enter the location of the switch System Contact Enter your contact information 4 1 3 System Time System Time is the time displayed while the switch is running On this page you can configure the system time and the settings here will be used for other time based functions like ACL You can manually set the system time or synchronize with PC s clock as the system time Choose the menu System System Info System Time to loa
5. oooonmnococnnnnnncicnnconoconcnconocnnnnnnnnonononnnnnnnnnnonnnnnnnennnnnnnnnnnnnnnanennnnnnnnnnnnnonincnnns 73 8 1 IGMP SMOOPING ion ccleaner 75 8 1 1 SNOOPING CONG eii a A a ee ee 76 8 1 2 Port Conie ri ri eae tae 77 8 1 3 VLAN COMM rt eh Acad tas a i 78 8 1 4 Mulicast VEAN das ds A inci ee N EE aiaa a e e E ti acess 80 9 Z Multicanal eoea ges 83 8 2 1 Multicast IP Table o oocccnccncccncccncnoninoconoconononononnnnnnconacnnccnncnnaco nan naco toii kna 83 8 22 Static MulticaStlPo cisma ad 84 9 37 Multicast Eller A en On eines 85 8 3 1 A Hie a E T 86 Zo POR laa RO re RT ev mene 87 8 4 Packet Statistical a eta 88 Chapter 9 DOS aia A A inne eae etek 90 9 1 DIS ai iio 93 9 1 1 POP PON do E 93 9 12 A a ec kd ca Sie 94 9 1 3 DSEP Priority cuco aria 95 9 1 4 Schedule Mode cuota a To 97 9 2 Bandwidth Control pita 97 get Rai li ida 98 9 22 Storm CONO A A 99 Chapter 10 SNMP a a a Ta a Aa rara a a aiae ae aaee i adaa eittea iaa iaaa 101 A a a EE Eao a us IAR 103 101 1 Global Configs arrat ororena eeii aaae enaa aa Ea dl ea 103 10 127 SNMP VIEW ia a A a IA 104 10 153 SNMP GroUpDe tits li 105 10 154 SNMP USET a a A ist nia ds 106 10 1 5 SNMP COMMUNilY occccccccinnnnnooccncncnncnnnnnnnncnnnnnncnnnnnnnnnnnnnnnnennnnannnnnnnnnneneanannnnnnes 108 102 NOTIN CATON teks ico ahah alee a slates slat 110 103 RMON a di tada IE 112 10 31 History Control unimarc adora 113 10 3 2 Event CON dd a 113 10
6. Anote The MAC address in the Filtering Address Table can not be added to the Static Address Table or bound to a port dynamically Return to CONTENTS 42 Chapter 6 VLAN The traditional Ethernet is a data network communication technology basing on CSMA CD Carrier Sense Multiple Access Collision Detect via shared communication medium Through the traditional Ethernet the overfull hosts in LAN will result in serious collision flooding broadcasts poor performance or even breakdown of the Internet Though connecting the LANs through switches can avoid the serious collision the flooding broadcasts can not be prevented which will occupy plenty of bandwidth resources causing potential serious security problems A Virtual Local Area Network VLAN is a network topology configured according to a logical scheme rather than the physical layout The VLAN technology is developed for switches to control broadcast in LANs By creating VLANs in a physical LAN you can divide the LAN into multiple logical LANs each of which has a broadcast domain of its own Hosts in the same VLAN communicate with one another as if they are in a LAN However hosts in different VLANs cannot communicate with one another directly Therefore broadcast packets are limited in a VLAN Hosts in the same VLAN communicate with one another via Ethernet whereas hosts in different VLANs communicate with one another through the Internet devices such as Router the Lay3 Switch and
7. Leave Time Indicates the interval between the switch receiving a leave message from a host and the switch removing the host from the multicast groups The default value is 1 second The IGMP Snooping function can be implemented on Snooping Config Port Config VLAN Config and Multicast VLAN pages 8 1 1 Snooping Config To configure the IGMP Snooping on the switch please firstly configure IGMP global configuration and related parameters on this page If the multicast address of the received multicast data is not in the multicast address table the switch will broadcast the data in the VLAN When Unknown Multicast Discard feature is enabled the switch drops the received unknown multicast so as to save the bandwidth and enhance the process efficiency of the system Please configure this feature appropriate to your needs Choose the menu Multicast IGMP Snooping Snooping Config to load the following page 76 Global Config IGMP Snooping Enable Disable Unknown Multicast Forward Discard IGMP Snooping Status Description Member Enabled Port Enabled WYLAN Note IGMP Snooping will take effect only when Global Config Port Config and LAN Config are all enabled Figure 8 4 Basic Config The following entries are displayed on this screen gt Global Config IGMP Snooping Select Enable Disable IGMP Snooping function globally on the Switch Unknown Multicast Select the operation for the switch to process unknown
8. gt Multicast IP Table Multicast IP VLAN ID Forward Port Type Anzte Enter the multicast IP address the desired entry must carry Enter the VLAN ID the desired entry must carry Select the port number the desired entry must carry Select the type the desired entry must carry e All Displays all multicast IP entries e Static Displays all static multicast IP entries Dynamic Displays all dynamic multicast IP entries Displays multicast IP address Displays the VLAN ID of the multicast group Displays the forward port of the multicast group Displays the type of the multicast IP If the configuration on VLAN Config page and multicast VLAN page is changed the switch will clear up the dynamic multicast addresses in multicast address table and learn new addresses 8 2 2 Static Multicast IP Static Multicast IP table isolated from dynamic multicast group and multicast filter is not learned by IGMP Snooping It can enhance the quality and security for information transmission in some fixed multicast groups Choose the menu Multicast Multicast IP Static Multicast IP to load the following page 84 Create Static Multicast Multicast IP Format 225 0 0 1 VLAN ID 1 4094 l create Forward Port Format 1 3 6 8 Search Option Search Option All Y Static Multicast IP Table Select Multicast IP YLAN ID Forward Port Total Static Multicast IP 0 Figure 8 9 Static M
9. gt RSTP Elements Edge Port Indicates the port connected directly to terminals P2P Link Indicates the link between two switches directly connected MSTP Multiple Spanning Tree Protocol compatible with both STP and RSTP and subject to IEEE 802 1s standard not only enables spanning trees to converge rapidly but also enables packets of different VLANs to be forwarded along their respective paths so as to provide redundant links with a better load balancing mechanism Features of MSTP e MSTP combines VLANs and spanning tree together via VLAN to instance mapping table It binds several VLANs to an instance to save communication cost and network resources e MSTP divides a spanning tree network into several regions Each region has several internal spanning trees which are independent of each other e MSTP provides a load balancing mechanism for the packets transmission in the VLAN e MSTP is compatible with both STP and RSTP gt MSTP Elements MST Region Multiple Spanning Tree Region An MST Region comprises switches with the same region configuration and VLAN to Instances mapping relationship IST Internal Spanning Tree An IST is a spanning tree in an MST CST Common Spanning Tree ACST is the spanning tree in a switched network that connects all MST regions in the network CIST Common and Internal Spanning Tree A CIST comprising IST and CST is the spanning tree in a switched network that connects all switches in th
10. 0 24 Subnet mask 255 255 255 0 Default gateway 192 168 0 1 Obtain DNS server address automatically Use the following DNS server addresses Preferred DNS server 202 96 134 133 Alternate DNS server z Figure B 3 6 Select Use the following IP address And the following items will be available If the switch s IP address is 192 168 0 1 specify IP address as 192 168 0 x x is from 2 to 254 and the Subnet mask as 255 255 255 0 Now Click OK to save your settings Return to CONTENTS 129 Appendix C Glossary Access Control List ACL ACLs can limit network traffic and restrict access to certain users or devices by checking each packet for certain IP or MAC i e Layer 2 information Boot Protocol BOOTP BOOTP is used to provide bootup information for network devices including IP address information the address of the TFTP server that contains the devices system files and the name of the boot file Class of Service CoS CoS is supported by prioritizing packets based on the required level of service and then placing them in the appropriate output queue Data is transmitted from the queues using weighted round robin service to enforce priority service and prevent blockage of lower level queues Priority may be set according to the port default the packet s priority bit in the VLAN tag TCP UDP port number or DSCP priority bit Differentiate
11. 1 3 6 8 Note 1 All IGMP packet will be processed in the Multicast VLAN after Multicast VLAN is created 2 The Multicast VLAN won t take effect unless you first complete the configuration on the LAN Config page Figure 8 7 Multicast VLAN 80 The following entries are displayed on this screen gt Multicast VLAN Multicast VLAN Select Enable Disable Multicast VLAN feature VLAN ID Router Port Time Member Port Time Leave Time Router Ports Enter the VLAN ID of the multicast VLAN Specify the aging time of the router port Within this time if the switch doesn t receive IGMP query message from the router port it will consider this port is not a router port any more Specify the aging time of the member port Within this time if the switch doesn t receive IGMP report message from the member port it will consider this port is not a member port any more Specify the interval between the switch receiving a leave message from a host and the switch removing the host from the multicast groups Select the static router port which is mainly used in the network with stable topology Mote 1 The router port should be in the multicast VLAN otherwise the member ports can not receive multicast streams 2 The Multicast VLAN won t take effect unless you first complete the configuration for the corresponding VLAN owning the port on the 802 1Q VLAN page 3 The link type of the member ports
12. 1 admin Admin Enable Figure 4 8 User Table 4 2 2 User Config On this page you can configure the access level of the user to log on to the Web management page The switch provides two access levels Guest and Admin The guest only can view the settings without the right to configure the switch the admin can configure all the functions of the switch The Web management pages contained in this guide are subject to the admin s login without any explanation Choose the menu System User Manage User Config to load the following page 16 User Info User Name Access Level User Status Password Confirm Password User Table Select User ID O 1 Note underdashes only Guest v O Enable Disable User Name Status Enable Access Level Admin Operation admin Edit The User Name and Password should be less than 16 characters using digits English letters and Figure 4 9 User Config The following entries are displayed on this screen gt User Info User Name Access Level User Status Password Confirm Password User Table Select User ID Name Access Level and status Operation Create a name for users login Select the access level to login e Admin Admin can edit modify and view all the settings of different functions e Guest Guest only can view the settings without the right to edit and modify Select Enable Disable the user configuration T
13. Here mainly introduces e System Info Configure the description system time Daylight Saving Time and network parameters of the switch e User Manage Configure the user name and password for users to log on to the Web management page with a certain access level e System Tools Manage the configuration file of the switch e Access Security Access Security is configured to control the users logging on to the Web management page Chapter 5 Switching This module is used to configure basic functions of the switch Here mainly introduces e Port Configure the basic features for the port e LAG Configure Link Aggregation Group LAG is to combine a number of ports together to make a single high bandwidth data path e Traffic Monitor Monitor the traffic of each port e MAC Address Configure the address table of the switch Chapter 6 VLAN This module is used to configure VLANs to control broadcast in LANs Here mainly introduces e 802 1Q VLAN Configure port based VLAN Chapter 7 Spanning Tree This module is used to configure spanning tree function of the switch Here mainly introduces e STP Config Configure and view the global settings of spanning tree function e Port Config Configure CIST parameters of ports e MSTP Instance Configure MSTP instances e STP Security Configure protection function to prevent devices from any malicious attack against STP features Chapter 8 Multicast This modu
14. Remote Engine ID Specify the Remote Engine ID for Switch The Engine ID is a unique alphanumeric string used to identify the SNMP engine on the remote device which receives informs from Switch Anote The amount of Engine ID characters must be even 10 1 2 SNMP View The OID Object Identifier of the SNMP packets is used to describe the managed objects of the switch and the MIB Management Information Base is the set of the OIDs The SNMP View is created for the SNMP management station to manage MIB objects Choose the menu SNMP SNMP Config SNMP View to load the following page View Config View Name 16 characters maximum MIB Object ID 61 characters maximurn View Type Include Exclude View Table Select View Name View Type MIB Object ID O viewDefault Include 1 O viewDefault Exclude 1 3 6 1 6 3 15 O viewDefault Exclude 1 3 6 1 6 3 16 O viewDefault Exclude 1 3 6 1 6 3 18 Al Figure 10 4 SNMP View The following entries are displayed on this screen gt View Config View Name Give a name to the View for identification Each View can include several entries with the same name MIB Object ID Enter the Object Identifier OID for the entry of View View Type Select the type for the view entry e Include The view entry can be managed by the SNMP management station e Exclude The view entry can not be managed by the SNMP management station 104 gt View Table Select Select the
15. SNMP View page create SNMP View of the management agent The default View Name is viewDefault and the default OID is 1 3 Create SNMP Required alternatively Community e Create SNMP Community directly RENN On the SNMP gt SNMP Config gt SNMP Community page create SNMP Community based on SNMP v1 and SNMP v2c Configure e Create SNMP Group and SNMP User access level Similar to the configuration way based on for the User Create SNMP SNMPv3 you can create SNMP Group and Group and SNMP SNMP User of SNMP v1 v2c The User name User can limit access to the SNMP agent from SNMP network management station functioning as a community name The users can manage the device via the Read View Write View and Notify View defined in the SNMP Group 10 2 Notification With the Notification function enabled the switch can initiatively report to the management station about the important events that occur on the Views e g the managed device is rebooted which allows the management station to monitor and process the events in time The notification information includes the following two types Trap Trap is the information that the managed device initiatively sends to the Network management station without request Inform Inform packet is sent to inform the management station and ask for the reply The switch will resend the inform request if it doesn t get the response from the management station during the Timeou
16. etc The following figure illustrates a VLAN implementation VLAN 2 Router VLAN 6 Figure 6 1 VLAN implementation Compared with the traditional Ethernet VLAN enjoys the following advantages 1 Broadcasts are confined to VLANs This decreases bandwidth utilization and improves network performance 2 Network security is improved VLANs cannot communicate with one another directly That is a host in a VLAN cannot access resources in another VLAN directly unless routers or Layer 3 switches are used 3 Network configuration workload for the host is reduced VLAN can be used to group specific hosts When the physical position of a host changes within the range of the VLAN you need not change its network configuration A VLAN can span across multiple switches or even routers This enables hosts in a VLAN to be dispersed in a looser way That is hosts in a VLAN can belong to different physical network segment This switch supports 802 1Q VLAN to classify VLANs VLAN tags in the packets are necessary for the switch to identify packets of different VLANs The switch can analyze the 43 received untagged packets on the port and match the packets with the 802 1Q VLAN If a packet is matched the switch will add a corresponding VLAN tag to it and forward it in the corresponding VLAN 6 1 802 1Q VLAN VLAN tags in the packets are necessary for the switch to identify packets of different VLANs The switch works at the data lin
17. 1 Fast Leave on the port is effective only when the host supports IGMPv2 or IGMPv3 2 When both Fast Leave feature and Unknown Multicast Discard feature are enabled the leaving of a user connected to a port owning multi user will result in the other users intermitting the multicast business 8 1 3 VLAN Config Multicast groups established by IGMP Snooping are based on VLANs On this page you can configure different IGMP parameters for different VLANs Choose the menu Multicast IGMP Snooping VLAN Config to load the following page 78 VLAN Config VLAN ID Router Port Time Member Port Time 260 Leave Time 1 Static Router Ports VLAN Table O 300 Select VLANID Router Port Time 61 4094 sec 60 600 recommemed 300 sec 60 600 recommemed 260 sec 1 30 recommemed 1 Format 1 3 5 8 VLANID Router Port Select Member Port Time Leave Time Note The settings here will be invalid when multicast VLAN is enabled Figure 8 6 VLAN Config The following entries are displayed on this screen gt VLAN Config VLAN ID Router Port Time Member Port Time Leave Time Static Router Port VLAN Table VLAN ID Select Select VLAN ID Router Port Time Member Port Time Leave Time Enter the VLAN ID to enable IGMP Snooping for the desired VLAN Specify the aging time of the router port Within this time if the switch doesn t rece
18. Simple Network Management Protocol architecture functions to monitor the network RMON is currently a commonly used network management standard defined by Internet Engineering Task Force IETF which is mainly used to monitor the data traffic across a network segment or even the entire network so as to enable the network administrator to take the protection measures in time to avoid any network malfunction In addition RMON MIB records network statistics information of network performance and malfunction periodically based on which the management station can monitor network at any time effectively RMON is helpful for network administrator to manage the large scale network since it reduces the communication traffic between management station and managed agent gt RMON Group This switch supports the following four RMON Groups defined on the RMON standard RFC1757 History Group Event Group Statistic Group and Alarm Group RMON Group Function History Group After a history group is configured the switch collects and records network statistics information periodically based on which the management station can monitor network effectively detected Event Group Event Group is used to define RMON events Alarms occur when an event is ports Statistic Group Statistic Group is set to monitor the statistic of alarm variables on the specific 112 Alarm Group Alarm Group is configured to monitor the specific
19. Tag Figure 9 2 802 1Q frame As shown in the figure above each 802 1Q Tag has a Pri field comprising 3 bits The 3 bit priority field is 802 1p priority in the range of O to 7 802 1P priority determines the priority of the packets based on the Pri value On the Web management page of the switch you can configure different priority tags mapping to the corresponding priority levels and then the switch determine which packet is sent preferentially when forwarding packets The switch processes untagged packets based on the default priority mode 3 DSCP Priority IPv4 datagram 2 1 l 0 IP Precedence ease Unused eit IPv4 Standard DiffServ Code Point DSCP Flow Ctrl DS Region Figure 9 3 IP datagram As shown in the figure above the ToS Type of Service in an IP header contains 8 bits The first three bits indicate IP precedence in the range of 0 to 7 RFC2474 re defines the ToS field in the IP packet header which is called the DS field The first six bits bit O bit 5 of the DS field indicate DSCP precedence in the range of 0 to 63 The last 2 bits bit 6 and bit 7 are reserved On the Web management page you can configure different DS field mapping to the corresponding priority levels Non IP datagram with 802 1Q tag are mapped to different priority levels based on 802 1P priority mode if 8021 1P Priority mode is enabled the untagged non IP datagram are mapped based on port priority mode gt Schedule Mode When
20. Test functions to test the connection status of the cable connected to the switch which facilitates you to locate and diagnose the trouble spot of the network Choose the menu Maintenance Device Diagnose Cable Test to load the following page Cable Test Port v Unit meter Pair Status Length Error Pair A Pair B Pair C Pair D Note 1 The interval between two cable test for one port must be more than 3 seconds 2 The resultis more reasonable when the cable pair is in the open status 3 The result is just for your information 4 Ifthe portis 100M and its connection status is normal cable test cant get the length of the cable Figure 11 7 Cable Test The following entries are displayed on this screen gt Cable Test Port Select the port for cable testing Pair Displays the Pair number Status Displays the connection status of the cable connected to the port The test results of the cable include normal close open short impedance or unknown Length If the connection status is normal here displays the length range of the cable Error If the connection status is close open or impedance here displays the error length of the cable 122 Anote 1 The Length displayed here is the length of pair cable not that of the physical cable 2 The test result is just for your reference 11 3 2 Loopback Loopback test function looping the sender and the receiver of
21. an un VLAN tagged packet it will add a VLAN tag to the packet according to the PVID of its received port and forward the packets When creating VLANs the PVID of each port indicating the default VLAN to which the port belongs is an important parameter with the following two purposes 1 2 When the switch receives an un VLAN tagged packet it will add a VLAN tag to the packet according to the PVID of its received port PVID determines the default broadcast domain of the port i e when the port receives UL packets or broadcast packets the port will broadcast the packets in its default VLAN Different packets tagged or untagged will be processed in different ways after being received by ports of different link types which is illustrated in the following table Receiving Packets Port Type Forwarding Packets Untagged Packets Tagged Packets If the VID of packet is the same as the PVID of the port the packet will be received The packet will be Access forwarded after removing its If the VID of packet is VLAN tag not the same as the PVID of the port the packet will be dropped When untagged packets are received the port The packet will be Trunk will add the default forwarded with its current VLAN tag i e the VLAN tag PVID of the ingress If the VID of packet is port to the packets allowed by the port the If the egress rule of port is packet will be received TAG the packet
22. and add it to VLAN3 and VLAN 5 Enable IGMP Snooping function Enable IGMP Snooping function globally on Multicast IGMP Snooping Snooping Config page Enable IGMP Snooping function for port 3 port4 and port 5 on Multicast gt IGMP Snooping Port Config page Enable Multicast VLAN Enable Multicast VLAN configure the VLAN ID of a multicast VLAN as 3 and keep the other parameters as default on Multicast IGMP Snooping Multicast VLAN page Check Multicast VLAN 3 5 and Multicast VLAN 3 will be displayed in the IGMP Snooping Status table on the Multicast IGMP Snooping Snooping Config page 8 2 Multicast IP In a network receivers can join different multicast groups appropriate to their needs The switch forwards multicast streams based on multicast address table The Multicast IP can be implemented on Multicast IP Table Static Multicast IP page 8 2 1 Multicast IP Table On this page you can view the multicast IP table on the switch Choose the menu Multicast Multicast IP Multicast IP Table to load the following page 83 Search Option O Multicast IP O VLAN ID O Port O Type Multicast IP Table Multicast IP Total Multicast IP 0 Format 225 0 0 1 1 4094 All Static Dynamic VLAN ID Forward Port Type Figure 8 8 Multicast IP Table The following entries are displayed on this screen gt Search Option Multicast IP VLAN ID Port Type
23. configure Statistic Group and Alarm Group for RMON Choose the menu SNMP gt RMON gt Alarm Config to load the following page 114 Al Select Index arm Table oN ona wN 10 11 12 Variable Port Sample Type N Rising Event ZAU Falling Event Alarm Type Interval sec Owner Status DropEvents Absolute v 2 All J Disable DropEvents Port1 Absolute 100 1 100 1 All 1800 monitor Disable DropEvents Port Absolute 100 1 00 Al 1800 monitor Disable DropEvents Port1 Absolute 100 1 00 All 1800 monitor Disable DropEvents Pont 1 Absolute 100 1 00 1 All 1800 monitor Disable DropEvents Port1 Absolute 100 1 100 1 Al 1800 monitor Disable DropEvents Port Absolute 100 1 100 All 1800 monitor Disable DropEvents Port1 Absolute 100 1 00 All 1800 monitor Disable DropEvents Port Absolute 100 1 100 1 All 1800 monitor Disable DropEvents Port1 Absolute 100 1 oo Al 1800 monitor Disable DropEvents Port 1 Absolute 100 1 100 1 All 1800 monitor Disable DropEvents Port1 Absolute 100 1 00 Al 1800 monitor Disable DropEvents Port Absolute 100 1 100 1 All 1800 monitor Disable Figure 10 11 Alarm Config The following entries are displayed on this screen gt Alarm Table Select Index Variable Port Sample Type Rising Threshold Rising Event Falling Threshold Falling Event Alarm Type Select the desired entry for configura
24. corresponding port based on the port number you entered Select the desired port for Storm Control configuration It is multi optional Displays the port number of the Switch Enable Disable broadcast control feature for the port Enable Disable multicast control feature for the port Enable Disable UL Frame control feature for the port Displays the LAG number which the port belongs to If you enable storm control feature for the ingress rate limit enabled port ingress rate limit feature will be disabled for this port Return to CONTENTS 100 Chapter 10 SNMP gt SNMP Overview SNMP Simple Network Management Protocol has gained the most extensive application on the UDP IP networks SNMP provides a management frame to monitor and maintain the network devices It is used for automatically managing the various network devices no matter the physical differences of the devices Currently the most network management systems are based on SNMP SNMP is simply designed and convenient for use with no need of complex fulfillment procedures and too much network resources With SNMP function enabled network administrators can easily monitor the network performance detect the malfunctions and configure the network devices In the meantime they can locate faults promptly and implement the fault diagnosis capacity planning and report generating gt SNMP Management Frame SNMP management frame includes three network elements SNMP Ma
25. desired entry to delete the corresponding view All the entries of a View will be deleted together View Name Displays the name of the View entry View Type Displays the type of the View entry MIB Object ID Displays the OID of the View entry 10 1 3 SNMP Group On this page you can configure SNMP Group to control the network access by providing the users in various groups with different management rights via the Read View Write View and Notify View Choose the menu SNMP gt SNMP Config SNMP Group to load the following page Group Config Group Name i 16 characters maximum Security Model v A Security Level nc Read View viewDefault v Write View None Notify View None Y Group Table Select Group Name prin Security Level Read View Write View All Note A group should contain a read view and the default read view is viewDefault Figure 10 5 SNMP Group The following entries are displayed on this screen gt Group Config Notify View Operation Group Name Enter the SNMP Group name The Group Name Security Model and Security Level compose the identifier of the SNMP Group These three items of the Users in one group should be the same Security Model Select the Security Model for the SNMP Group e vi SNMPv1 is defined for the group In this model the Community Name is used for authentication SNMP v1 can be configured on the SNMP Community page directly e v2c SNMPv2c is defined for
26. group specific query message to check if other members in the multicast group of the port need this multicast When receiving IGMP general query message the switch will forward them to all other ports in the VLAN owning the receiving port The receiving port will be processed if the receiving port is nota router port yet it will be added to the router port list with its router port time specified if the receiving port is already a router port its router port time will be directly reset When receiving IGMP group specific query message the switch will send the group specific query message to the members of the multicast group being queried 2 IGMP Report Message IGMP report message is sent by the host when it applies for joining a multicast group or responses to the IGMP query message from the router When receiving IGMP report message the switch will send the report message via the router port in the VLAN as well as analyze the message to get the address of the multicast group the host applies for joining The receiving port will be processed if the receiving port is anew member port 75 it will be added to the multicast address table with its member port time specified if the receiving port is already a member port its member port time will be directly reset 3 IGMP Leave Message The host running IGMPv1 does not send IGMP leave message when leaving a multicast group as a result the switch can not get the leave information
27. gt 10 100 1000Mbps Ports Designed to connect to the device with a bandwidth of 10Mbps 100Mbps or 1000Mbps Each has a corresponding 1000M LED gt SFP Ports Designed to install the SFP module It shares LEDs with 1000Mbps ports When a 1000Mbps SFP module is inserted into the SFP port On green LED of 1000M means a device is linked to the port and Flashing green LED of 1000M indicates data is being transmitted or received on the port gt LEDs Name Status Indication On green The Switch is powered on Power Flashing Off The Switch is powered off or power supply is abnormal Flashing The Switch is working normally System On Off The Switch is powered off or the Switch is working abnormally On A device is linked to the corresponding port Flashing Data is being transmitted or received 10 100M Green The linked device is running at 100Mbps Yellow The linked device is running at 10Mbps On A device is linked to the corresponding port Flashing Data is being transmitted or received 1000M Green The linked device is running at 1000Mbps Yellow The linked device is running at 10 100Mbps Mote When using the SFP port with a 100M module or a gigabit module you need log on to the GUI Graphical User Interface of the Switch and configure its corresponding Speed and Duplex mode on Switching gt Port Port Config page For 100M module please select 100MFD while select 1000MF
28. in multiple VLANs and the egress rule of the port is TAG The PVID can be set as the VID number of any VLAN the port belongs to e GENERAL The GENERAL port can be added in multiple VLANs and set various egress rules according to the different VLANs The default egress rule is UNTAG The PVID can be set as the VID number of any VLAN the port belongs to Enter the PVID number of the port Displays the LAG to which the port belongs Click the Detail button to view the information of the VLAN to which the port belongs Click the Detail button to view the information of the corresponding VLAN VLAN of Port 13 VLAN ID Note Total VLAN of Port 13 1 VLAN ID VLAN Name Operation Default LAN Remove Figure 6 6 View the Current VLAN of Port The following entries are displayed on this screen gt VLAN of Port VLAN ID Select VLAN ID VLAN Description Operation Configuration procedure Click the Select button to quick select the corresponding entry based on the VLAN ID number you entered Displays the ID number of VLAN Displays the user defined description of VLAN Allows you to remove the port from the current VLAN Step Operation Description 1 Set the link type for port Required On the VLAN 802 1Q VLAN gt Port Config page set the link type for the port basing on its connected device 2 Create VLAN Required On the VLAN 802 1Q VLAN gt VLAN Config page click the Cre
29. in the multicast VLAN can only be GENERAL E Configure the link type of the router port in the multicast VLAN as TRUNK or configure the egress rule as TAG and the link type as GENERAL otherwise all the member ports in the multicast VLAN can not receive multicast streams 5 After a multicast VLAN is created all the IGMP packets will be processed only within the multicast VLAN Configuration procedure Step Operation Description 1 Enable IGMP Snooping Required Enable IGMP Snooping globally on the switch function and for the port on Multicast IGMP Snooping Snooping Config and Port Config page 2 Create a multicast VLAN Required Create a multicast VLAN and add all the member ports and router ports to the VLAN on the VLAN gt 802 1Q VLAN page e Configure the link type of the member ports as GENERAL e Configure the link type of the router ports as TRUNK or configure the egress rule as tagged GENERAL 81 Configure parameters for multicast VLAN Optional Enable and configure a multicast VLAN on the Multicast IGMP Snooping Multicast VLAN page It is recommended to keep the default time parameters Look over the configuration If it is successfully configured the VLAN ID of the multicast VLAN will be displayed in the IGMP Snooping Status table on the Multicast IGMP Snooping Snooping Config page Application Example for Multicast VLAN gt Network Requiremen
30. modify the corresponding port number It 38 MAC Address VLAN ID Port Type Aging Status Anote is multi optional Displays the static MAC Address Displays the corresponding VLAN ID of the MAC address Displays the corresponding Port number of the MAC address Here you can modify the port number to which the MAC address is bound The new port should be in the same VLAN Displays the Type of the MAC address Displays the Aging Status of the MAC address 1 If the corresponding port number of the MAC address is not correct or the connected port or the device has been changed the switch can not be forward the packets correctly Please reset the static address entry appropriately 2 Ifthe MAC address of a device has been added to the Static Address Table connecting the device to another port will cause its address not to be recognized dynamically by the switch Therefore please ensure the entries in the Static Address Table are correct and valid 3 The MAC address in the Static Address Table can not be added to the Filtering Address Table or bound to a port dynamically 5 4 3 Dynamic Address The dynamic address can be generated by the auto learning mechanism of the switch The Dynamic Address Table can update automatically by auto learning or aging out the MAC address To fully utilize the MAC address table which has a limited capacity the switch adopts an aging mechanism for updating the table That is t
31. not be added to the multicast group the switch will drop the IGMP report message In that way the multicast streams will not be transmitted to this port which allows you to control hosts joining the multicast group 8 3 1 IP Range On this page you can figure the desired IP ranges to be filtered Choose the menu Multicast Multicast Filter IP Range to load the following page Create IP Range IP Range ID 1 30 Start Multicast IP Format 225 0 0 1 End Multicast IP Format 225 0 0 1 IP Range Table IP Range ID Select Select IP Range ID Start Multicast IP End Multicast IP O Total IP Range 0 Figure 8 10 Multicast Filter The following entries are displayed on this screen gt Create IP Range IP Range ID Enter the IP range ID Start Multicast IP Enter start multicast IP of the IP range you set End Multicast IP Enter end multicast IP of the IP range you set gt IP Range Table IP Range ID Select Click the Select button to quick select the corresponding IP range ID based on the ID number you entered Select Select the desired entry to delete or modify the corresponding IP range It is multi optional IP Range ID Displays IP range ID Start Multicast IP Displays start multicast IP of the IP range End Multicast IP Displays end multicast IP of the IP range 86 8 3 2 Port Filter On this page you can configure the multicast filter rules for port Ta
32. not enabled in the VLAN thus the multicast data in the VLAN will be broadcasted 8 1 4 Multicast VLAN In old multicast transmission mode when users in different VLANs apply for join the same multicast group the multicast router will duplicate this multicast information and deliver each VLAN owning a receiver one copy This mode wastes a lot of bandwidth The problem above can be solved by configuring a multicast VLAN By adding switch ports to the multicast VLAN and enabling IGMP Snooping you can make users in different VLANs share the same multicast VLAN This saves the bandwidth since multicast streams are transmitted only within the multicast VLAN and also guarantees security because the multicast VLAN is isolated from user VLANS Before configuring a multicast VLAN you should firstly configure a VLAN as multicast VLAN and add the corresponding ports to the VLAN on the 802 1Q VLAN page If the multicast VLAN is enabled the multicast configuration for other VLANs on the VLAN Config page will be invalid that is the multicast streams will be transmitted only within the multicast VLAN Choose the menu Multicast IGMP Snooping Multicast VLAN to load the following page Multicast VLAN Multicast VLAN Enable Disable VLAN ID 2 4094 Router Port Time sec 60 600 recommemed 300 Apply Member Port Time sec 60 600 recommemed 260 Leave Time sec 1 30 recommemed 1 Router Ports Format
33. of the host momentarily However after leaving the multicast group the host does not send IGMP report message any more so the switch will remove the port from the corresponding multicast address table when its member port time times out The host running IGMPv2 or IGMPv3 sends IGMP leave message when leaving a multicast group to inform the multicast router of its leaving When receiving IGMP leave message the switch will forward IGMP group specific query message to check if other members in the multicast group of the port need this multicast and reset the member port time to the leave time When the leave time times out the switch will remove the port from the corresponding multicast group If no other member is in the group after the port is removed the switch will remove the whole multicast group and send IGMP leave message to the router gt IGMP Snooping Fundamentals 1 Ports Router Port Indicates the switch port directly connected to the multicast router Member Port Indicates a switch port connected to a multicast group member 2 Timers Router Port Time Within the time if the switch does not receive IGMP query message from the router port it will consider this port is not a router port any more The default value is 300 seconds Member Port Time Within the time if the switch does not receive IGMP report message from the member port it will consider this port is not a member port any more The default value is 260 seconds
34. the higher priority has more chance to be chosen as the root port Path Cost Indicates the parameter for choosing the link path by STP By calculating the path cost STP chooses the better links and blocks the redundant links so as to disbranch the ring network to form a tree topological ring free network The following network diagram shows the sketch map of spanning tree Switch A B and C are connected together in order After STP generation switch A is chosen as root bridge the path from port 2 to port 6 is blocked e Bridge Switch A is the root bridge in the whole network switch B is the designated bridge of switch C 52 e Port Port 3 is the root port of switch B and port 5 is the root port of switch C port 1 is the designated port of switch A and port 4 is the designated port of switch B port 6 is the blocked port of switch C Switch B Switch C Figure 7 1 Basic STP diagram gt STP Timers Hello Time Hello Time ranges from 1 to 10 seconds It specifies the interval to send BPDU packets It is used to test the links Max Age Max Age ranges from 6 to 40 seconds It specifies the maximum time the switch can wait without receiving a BPDU before attempting to reconfigure Forward Delay Forward Delay ranges from 4 to 30 seconds It specifies the time for the port to transit its state after the network topology is changed When the STP regeneration caused by network malfunction occurs the STP structure will g
35. the signal is used to test whether the port of the switch is available as well as to check and analyze the physical connection status of the port to help you locate and solve network malfunctions Choose the menu Maintenance gt Device Diagnose Loopback to load the following page Loopback Type Loopback Type Internal External Loopback Port Os O2 O3 Da Os Os O7 Os Oa Oro O01 112 013 114 115 O16 117 C18 O19 O20 O21 122 123 O24 O25 O26 O27 O28 Loopback Result Port WA Type MWA Result WA Figure 11 8 Loopback The following entries are displayed on this screen gt Loopback Type Internal Select Internal to test whether the port is available External Select External to test whether the device connected to the port of the switch is available gt Loopback Port Loopback Port Select the desired port for loopback test Test Click the Test button to start the loopback test for the port 11 4 Network Diagnose This switch provides Ping test and Tracert test functions for network diagnose 123 11 4 1 Ping Ping test function testing the connectivity between the switch and one node of the network facilitates you to test the network connectivity and reachability of the host so as to locate the network malfunctions Choose the menu Maintenance Network Diagnose gt Ping to load the following page Ping Config Destination IP 192 168 0 1 Ping Times 4 1 10 Data Size 64 byte 1 1024 Inter
36. the user is connected to a remote SNMP engine Group Name Select the Group Name of the User The User is classified to the corresponding Group according to its Group Name Security Model and Security Level Security Model Select the Security Model for the User Security Level Select the Security Level for the SNMP v3 User Auth Mode Select the Authentication Mode for the SNMP v3 User e None No authentication method is used e MD5 The port authentication is performed via HMAC MD5 algorithm e SHA The port authentication is performed via SHA Secure Hash Algorithm This authentication mode has a higher security than MD5 mode Auth Password Enter the password for authentication Privacy Mode Select the Privacy Mode for the SNMP v3 User e None No privacy method is used e DES DES encryption method is used Privacy Password Enter the Privacy Password 107 gt User Table Select Select the desired entry to delete the corresponding User It is multi optional User Name Displays the name of the User User Type Displays the User Type Group Name Displays the Group Name of the User Security Model Displays the Security Model of the User Security Level Displays the Security Level of the User Auth Mode Displays the Authentication Mode of the User Privacy Mode Displays the Privacy Mode of the User Operation Click the Edit button to modify the Group of the User and click the Modify button to apply
37. time may be increased with occupying too much network resources The default value is recommended 7 1 2 STP Summary On this page you can view the related parameters for Spanning Tree function Choose the menu Spanning Tree STP Config STP Summary to load the following page 59 STP Summary STP Status Disable STP Version Local Bridge Root Bridge a External Path Cost Region Root ae Internal Path Cast Designated Bridge Root Port z Latest TC Time TC Count 0 MSTP Instance Summary Instance ID Instance Status Disable Local Bridge Region Root Internal Path Cast Designated Bridge Root Port Latest TC Time TC Count Figure 7 5 STP Summary 7 2 Port Config On this page you can configure the parameters of the ports for CIST Choose the menu Spanning Tree Port Config to load the following page 60 Port Config Port Select Port Status Select Port Status Priority ExtPath Cost IntPath Cost Edge Port P2P Link MCheck STP Version Port Role LAG d Disable Disable Auto Unchange O 1 Disable 128 Auto Auto Disable Auto 2 O 2 Disable 128 Auto Auto Disable Auto O 3 Disable 128 Auto Auto Disable Auto 4 Disable 128 Auto Auto Disable Auto 5 Disable 128 Auto Auto Disable Auto O 6 Disable 128 Auto Auto Disable Auto O 7 Disable 128 Auto Auto Disa
38. to figure out the spanning tree gt STP Elements Bridge ID Bridge Identifier Indicates the value of the priority and MAC address of the bridge Bridge ID can be configured and the switch with the lower bridge ID has the higher priority Root Bridge Indicates the switch has the lowest bridge ID Configure the best PC in the ring network as the root bridge to ensure best network performance and reliability Designated Bridge Indicates the switch has the lowest path cost from the switch to the root bridge in each network segment BPDUs are forwarded to the network segment through the designated bridge The switch with the lowest bridge ID will be chosen as the designated bridge Root Path Cost Indicates the sum of the path cost of the root port and the path cost of all the switches that packets pass through The root path cost of the root bridge is 0 Bridge Priority The bridge priority can be set to a value in the range of 0 61440 The lower value priority has the higher priority The switch with the higher priority has more chance to be chosen as the root bridge Root Port Indicates the port that has the lowest path cost from this bridge to the Root Bridge and forwards packets to the root Designated Port Indicates the port that forwards packets to a downstream network segment or switch Port Priority The port priority can be set to a value in the range of 0 255 The lower value priority has the higher priority The port with
39. 0 0 0 Statistics 10 0 0 0 0 Statistics 11 0 0 0 0 Statistics 12 0 0 0 0 Statistics v Figure 5 9 Traffic Summary The following entries are displayed on this screen gt Auto Refresh Auto Refresh Allows you to Enable Disable refreshing the Traffic Summary automatically 33 Refresh Rate gt Traffic Summary Port Select Port Packets Rx Packets Tx Octets Rx Octets Tx Statistics Enter a value in seconds to specify the refresh interval Click the Select button to quick select the corresponding port based on the port number you entered Displays the port number Displays the number of packets received on the port The error packets are not counted in Displays the number of packets transmitted on the port Displays the number of octets received on the port The error octets are counted in Displays the number of octets transmitted on the port Click the Statistics button to view the detailed traffic statistics of the port 5 3 2 Traffic Statistics Traffic Statistics screen displ ays the detailed traffic information of each port which facilitates you to monitor the traffic and locate faults promptly Choose the menu Switching Traffic Monitor Traffic Statistics to load the following page Auto Refresh Auto Refresh Enable Disable Refresh Rate sec 3 300 Statistics Pot 1 Received Sent Broadcast Multicast Unicast Alignment Errors UndersizePkts P
40. 0 0 J 7 0 0 0 0 0 0 8 0 0 0 0 0 0 g 0 0 0 0 0 0 10 0 0 0 0 0 0 11 0 0 0 0 0 0 12 0 0 0 0 0 0 lt Figure 8 12 Packet Statistics 88 The following entries are displayed on this screen gt Auto Refresh Auto Refresh Refresh Period IGMP Statistics Port Select Port Query Packet Report Packet V1 Report Packet V2 Report Packet V3 Leave Packet Error Packet Select Enable Disable auto refresh feature Enter the time from 3 to 300 in seconds to specify the auto refresh period Click the Select button to quick select the corresponding port based on the port number you entered Displays the port number of the switch Displays the number of query packets the port received Displays the number of IGMPv1 report packets the port received Displays the number of IGMPv2 report packets the port received Displays the number of IGMPv3 report packets the port received Displays the number of leave packets the port received Displays the number of error packets the port received Return to CONTENTS 89 Chapter 9 QoS QoS Quality of Service functions to provide different quality of service for various network applications and requirements and optimize the bandwidth resource distribution so as to provide a network service experience of a better quality gt QoS This switch classifies the ingress packets maps the packets to different priority queues and then forwards the packets acc
41. 30 in the range from 1 to 4094 Figure 7 8 Instance Config 63 The following entries are displayed on this screen gt Instance Table Instance ID Select Select Instance Status Priority VLAN ID Clear Click the Select button to quick select the corresponding Instance ID based on the ID number you entered Select the desired Instance ID for configuration It is multi optional Displays Instance ID of the switch Select Enable Disable the instance Enter the priority of the switch in the instance It is an important criterion on determining if the switch will be chosen as the root bridge in the specific instance Enter the VLAN ID which belongs to the corresponding instance ID After modification here the previous VLAN ID will be cleared and mapped to the CIST Click the Clear button to clear up all VLAN IDs from the instance ID The cleared VLAN ID will be automatically mapped to the CIST VLAN Instance Mapping VLAN ID Instance ID Mote In a network with both GVRP and MSTP enabled GVRP packets are forwarded along the CIST If you want to broadcast packets of a specific VLAN through GVRP please be sure to map the VLAN to the CIST when configuring the MSTP VLAN instance mapping table Enter the desired VLAN ID After modification here the new VLAN ID will be added to the corresponding instance ID and the previous VLAN ID won t be replaced Enter the corresponding instance ID 7 3 3 Instan
42. 33 Alarm Co ui neta 114 Chapter 11 Maintenance essiensa e aaae aan Eaa Eda E KEEA aAA EEAS E EARE EEEa EEE an 117 11 1 System MONO ineno e een ia 117 MAI CPU MON OT e foie A A a R Aai 117 11 1 2 Memory Monitor occcccnncncnccnncnnncnnnnnnnnnnnnnnnnnonononononnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnncnnss 118 ML OG E AE E A E AET 118 e A e he i Dalal ence AE E 119 14 227 kcal O e a 120 aa e ROMO LO E EAT 120 11 24 Backup LOG dereen tee dae e ena da aa E eva 121 1123 Device DiagnOSe ses Ai E E E TT 122 E O 0 EA E ARRE AI ne ee 122 O o EE TAA E ly leetebeadaedial T 123 11 4 Network Diagnose eneee nene nono neee nn no nono nn no nn nn nono nnnnnnnnnnnonnnnnnrennnos 123 A A OS 124 114 2 O A TN 124 Appendix A Specifications ici a 126 Appendix B Configuring the PCS ooooccccccccnnononoocccnococnnnnnnonnnnnnncnnnncnnnnnnnnnnnnnonnnnannnnnnnnnnencanannnnnnes 127 Appendix C GIOSSAMY iii Arata 130 VI Package Contents The following items should be found in your box gt One TL SL2428 24 Port 10 100Mbps 4 Port Gigabit Smart Switch One power cord Two mounting brackets and other fittings Installation Guide VV V WV Resource CD for TL SL2428 switch including e This User Guide e Other Helpful Information Adote Make sure that the package contains the above items If any of the listed items are damaged or missing please contact your distributor Chapter 1 About this Guide This User Guide contains in
43. Alignment Error The length of the packet is between 64 bytes and 1518 bytes Displays the number of the received packets excluding error packets that are less than 64 bytes long Displays the number of the received packets including error packets that are 64 bytes long Displays the number of the received packets including error packets that are between 65 and 127 bytes long Displays the number of the received packets including error packets that are between 128 and 255 bytes long Displays the number of the received packets including error packets that are between 256 and 511 bytes long Displays the number of the received packets including error packets that are between 512 and 1023 bytes long Displays the number of the received packets including error packets that are more than 1023 bytes long Displays the number of collisions experienced by a port during packet transmissions 35 5 4 MAC Address The main function of the switch is forwarding the packets to the correct ports based on the destination MAC address of the packets Address Table contains the port based MAC address information which is the base for the switch to forward packets quickly The entries in the Address Table can be updated by auto learning or configured manually Most the entries are generated and updated by auto learning In the stable networks the static MAC address entries can facilitate the switch to reduce broadcast packets and enh
44. C Address IP Address Mode Management VLAN 1 VLAN ID 1 4094 IP Address Subnet Mask Default Gateway Note 64 70 02 81 54 87 O Static IP DHCP O BOOTP 19216801 1255 255 255 0 Changing IP address to a different IP segment will interrupt the network communication so please keep the new IP address in the same IP segment with the local network Figure 4 7 System IP The following entries are displayed on this screen gt IP Config MAC Address IP Address Mode Management VLAN IP Address Subnet Mask Default Gateway Displays MAC Address of the switch Select the mode to obtain IP Address for the switch e Static IP When this option is selected you should enter IP Address Subnet Mask and Default Gateway manually e DHCP When this option is selected the switch will obtain network parameters from the DHCP Server e BOOTP When this option is selected the switch will obtain network parameters from the BOOTP Server Enter the ID of management VLAN the only VLAN through which you can get access to the switch By default VLAN1 owning all the ports is the Management VLAN and you can access the switch via any port on the switch However if another VLAN is created and set to be the Management VLAN you may have to reconnect the management station to a port that is a member of the Management VLAN Enter the system IP of the switch The default system IP is 192 168 0 1 an
45. D for gigabit module By default the Speed and Duplex mode of SFP port is 1000MFD 2 3 2 Rear Panel The rear panel of TL SL2428 features a power socket and a Grounding Terminal marked with Figure 2 2 Rear Panel gt Grounding Terminal TL SL2428 already comes with Lightning Protection Mechanism You can also ground the Switch through the PE Protecting Earth cable of AC cord or with Ground Cable For detail information please refer to Installation Guide gt AC Power Socket Connect the female connector of the power cord here and the male connector to the AC power outlet Please make sure the voltage of the power supply meets the requirement of the input voltage 100 240V 50 60Hz 0 64 Return to CONTENTS Chapter 3 Login to the Switch 3 1 Login 1 To access the configuration utility open a web browser and type in the default address http 192 168 0 1 in the address field of the browser then press the Enter key CAC Figure 3 1 Web browser Tips To log in to the Switch the IP address of your PC should be set in the same subnet addresses of the Switch The IP address is 192 168 0 x x is any number from 2 to 254 Subnet Mask is 255 255 255 0 For the detailed instructions as to how to do this please refer to Appendix B 2 After a moment a login window will appear as shown in Figure 3 2 Enter admin for the User Name and Password both in lower case letters Then click the Login button o
46. Enter a value from 1 to 40 to set the maximum number of hops that occur in a specific region before the BPDU is discarded The default value is 20 hops Mnote 1 The forward delay parameter and the network diameter are correlated A too small forward delay parameter may result in temporary loops A too large forward delay may cause a network unable to resume the normal state in time The default value is recommended 2 An adequate hello time parameter can enable the switch to discover the link failures occurred in the network without occupying too much network resources A too large hello time parameter may result in normal links being regarded as invalid when packets drop occurred in the links which in turn result in spanning tree being regenerated A too small hello time parameter may result in duplicated configuration being sent frequently which increases the network load of the switches and wastes network resources The default value is recommended 3 A too small max age parameter may result in the switches regenerating spanning trees frequently and cause network congestions to be falsely regarded as link problems A too large max age parameter result in the switches unable to find the link problems in time which in turn handicaps spanning trees being regenerated in time and makes the network less adaptive The default value is recommended 4 Ifthe TxHold Count parameter is too large the number of MSTP packets being sent in each hello
47. In this mode all the queues occupy the bandwidth equally The weight value ratio of all the queues is 1 1 1 1 92 The QoS module is mainly for traffic control and priority configuration including three submenus DiffServ and Bandwidth Control 9 1 DiffServ This switch classifies the ingress packets maps the packets to different priority queues and then forwards the packets according to specified scheduling algorithms to implement QoS function This switch implements three priority modes based on port on 802 1P and on DSCP and supports four queue scheduling algorithms The port priorities are labeled as TCO TC1 TC2 and TC3 The DiffServ function can be implemented on Port Priority 802 1P Priority DSCP Priority and Schedule Mode pages 9 1 1 Port Priority On this page you can configure the port priority Choose the menu QoS DiffServ Port Priority to load the following page Port Priority Config Select Port Priority LAG TCO w TCO TCO TCO TCO TCO TCO TCO TCO Teo TCO TCO TCO v O O 410 MN bh UN gt gt o OOOOOOO000000 gt M note Among the Queue TC id TCO TC1 TC3 the bigger value the higher priority Figure 9 6 Port Priority Config The following entries are displayed on this screen gt Port Priority Config Select Select the desired port to configure its priority It is multi optional Port Displays the physical port number of th
48. N events Choose the menu SNMP RMON gt Event Config to load the following page 113 Event Table Select Index O O 1 O 2 O 3 O 4 O 5 O 6 O 7 O 8 O g o 10 O 11 O 12 User Description Type Owner Status None v Disable v public None monitor Disable public None monitor Disable public None monitor Disable public None monitor Disable public None monitor Disable public None monitor Disable public None monitor Disable public None monitor Disable public None monitor Disable public None monitor Disable public None monitor Disable public None monitor Disable Figure 10 10 Event Config The following entries are displayed on this screen gt Event Table Select Index User Description Type Owner Status 10 3 3 Alarm Config Select the desired entry for configuration Displays the index number of the entry Enter the name of the User or the community to which the event belongs Give a description to the event for identification Select the event type which determines the act way of the network device in response to an event e None No processing e Log Logging the event e Notify Sending trap messages to the management station e Log amp Notify Logging the event and sending trap messages to the management station Enter the name of the device or user that defined the entry Select Enable Disable the corresponding event entry On this page you can
49. N tag with the default VLAN ID of the inbound port for the packet and the packet will be assigned to the default VLAN of the inbound port for transmission In this User Guide the tagged packet refers to the packet with VLAN tag whereas the untagged packet refers to the packet without VLAN tag and the priority tagged packet refers to the packet with VLAN tag whose VLAN ID is 0 gt Link Types of ports When creating the 802 1Q VLAN you should set the link type for the port according to its connected device The link types of port including the following three types 1 ACCESS The ACCESS port can be added in a single VLAN and the egress rule of the port is UNTAG The PVID is same as the current VLAN ID If the ACCESS port is added to another VLAN it will be removed from the current VLAN automatically 44 2 3 gt TRUNK The TRUNK port can be added in multiple VLANs and the egress rule of the port is TAG The TRUNK port is generally used to connect the cascaded network devices for it can receive and forward the packets of multiple VLANs When the packets are forwarded by the TRUNK port its VLAN tag will not be changed GENERAL The GENERAL port can be added in multiple VLANs and set various egress rules according to the different VLANs The default egress rule is UNTAG The PVID can be set as the VID number of any VLAN the port belongs to PVID PVID Port Vlan ID is the default VID of the port When the switch receives
50. STP Config STP Config page enable STP function and select MSTP version On Spanning Tree gt STP Config Port Config page enable MSTP function for the port 3 Configure the region name and On Spanning Tree gt MSTP Instance gt Region Config the revision of MST region page configure the region as TP LINK and keep the default revision setting 4 Configure VLAN to Instance On Spanning Tree gt MSTP Instance gt Instance mapping table of the MST region Config page configure VLAN to Instance mapping table Map VLAN 101 103 and 105 to Instance 1 map VLAN 102 104 and 106 to Instance 2 e The configuration procedure for switch E and F is the same with that for switch D 71 gt The topology diagram of the two instances after the topology is stable e For Instance 1 VLAN 101 103 and 105 the red paths in the following figure are connected links the gray paths are the blocked links Switch A al Switch C Switch D Switch E Switch F e For Instance 2 VLAN 102 104 and 106 the blue paths in the following figure are connected links the gray paths are the blocked links Switch A Y Switch B Switch D Switch E Switch F gt Suggestion for Configuration e Enable TC Protect function for all the ports of switches e Enable Root Protect function for all the ports of root bridges e Enable Loop Protect function for the non edge ports Enable BPDU Protect function or BPDU Filter funct
51. Select the type for the notifications e Trap Indicates traps are sent e Inform Indicates informs are sent The Inform type has a higher security than the Trap type Specify the amount of times the switch resends an inform request The switch will resend the inform request if it doesn t get the response from the management station during the Timeout interval and it will terminate resending the inform request if the resending times reach the specified Retry times Specify the maximum time for the switch to wait for the response from the management station before resending a request 111 gt Notification Table Select IP Address UDP Port User Security Model Security Level Type Timeout Retry Operation 10 3 RMON Select the desired entry to delete the corresponding management station Displays the IP Address of the management host Displays the UDP port used to send notifications Displays the User name of the management station Displays the Security Model of the management station Displays the Security Level for the SNMP v3 User Displays the type of the notifications Displays the maximum time for the switch to wait for the response from the management station before resending a request Displays the amount of times the switch resends an inform request Click the Edit button to modify the corresponding entry and click the Modify button to apply RMON Remote Monitoring basing on SNMP
52. YT P LINK User Guide TL SL2428 24 Port 10 100Mbps 4 Port Gigabit Smart Switch NS Rev 1 0 0 1910010675 COPYRIGHT amp TRADEMARKS Specifications are subject to change without notice TP LINK is a registered trademark of TP LINK TECHNOLOGIES CO LTD Other brands and product names are trademarks or registered trademarks of their respective holders No part of the specifications may be reproduced in any form or by any means or used to make any derivative such as translation transformation or adaptation without permission from TP LINK TECHNOLOGIES CO LTD Copyright 2012 TP LINK TECHNOLOGIES CO LTD All rights reserved http www tp link com FCC STATEMENT FE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense This device complies with part 15 of the FCC Rules Operation is subject to the following two cond
53. ackup configuration file It will take effect after the switch automatically reboots Adore 1 It will take a few minutes to restore the configuration Please wait without any operation 2 To avoid any damage please don t power down the switch while being restored 3 After being restored the current settings of the switch will be lost Wrong uploaded configuration file may cause the switch unmanaged 4 3 2 Config Backup On this page you can download the current configuration and save it as a file to your computer for your future configuration restore Choose the menu System System Tools Config Backup to load the following page 18 Config Backup Backup System Config Click the button Backup Config you can save the config to you computer Note It will take a long time to backup the config file Please wait without any operation Figure 4 11 Config Backup The following entries are displayed on this screen gt Config Backup Backup Config Click the Backup Config button to save the current configuration as a file to your computer You are suggested to take this measure before upgrading A ote It will take a few minutes to backup the configuration Please wait without any operation 4 3 3 Firmware Upgrade The switch system can be upgraded via the Web management page To upgrade the system is to get more functions and better performance Go to http www tp link com to download the updated firmware Ch
54. alarm variables When the value of a monitored variable exceeds the threshold an alarm event is generated which triggers the switch to act in the set way The RMON Groups can be configured on the History Control Event Config and Alarm Config pages 10 3 1 History Control On this page you can configure the History Group for RMON Choose the menu SNMP RMON History Control to load the following page History Control Table Select Index Port Interval sec Owner Status O Porti vw Disable Fi 1 Port 1 1800 monitor Disable Fi 2 Pont 1 1800 monitor Disable O 3 Port1 1800 monitor Disable dl 4 Port 1 1800 monitor Disable O 5 Port 1 1800 monitor Disable O 6 Port1 1800 monitor Disable oO 7 Port 1 1800 monitor Disable oO 8 Port 1 1800 monitor Disable O g Port1 1800 monitor Disable O 10 Port1 1800 monitor Disable O 11 Pont 1 1800 monitor Disable o 12 Port 1800 monitor Disable Figure 10 9 History Control The following entries are displayed on this screen gt History Control Table Select Select the desired entry for configuration Index Displays the index number of the entry Port Specify the port from which the history samples were taken Interval Specify the interval to take samplings from the port Owner Enter the name of the device or user that defined the entry Status Select Enable Disable the corresponding sampling entry 10 3 2 Event Config On this page you can configure the RMO
55. ally The attacker uses tools to generate the cheating MAC address and quickly occupy the MAC Address Table When the MAC Address Table is full the switch will broadcast the packets to all the ports At this moment the attacker can obtain the network information via various sniffers and attacks When the MAC Address Table is full the packets traffic will flood to all the ports which results in overload lower speed packets drop and even breakdown of the system Port Security is to protect the switch from the malicious MAC Address Attack by limiting the maximum number of MAC addresses that can be learned on the port The port with Port Security feature enabled will learn the MAC address dynamically When the learned MAC address number reaches the maximum the port will stop learning Thereafter the other devices with the MAC address unlearned can not access to the network via this port Choose the menu Switching Port Port Security to load the following page 27 Port Security select Port O O 1 O 2 O 3 O 4 O 5 O 6 O 7 O 8 O 9 O 10 O T O 12 Note Max Learned MAC Learned Num Learn Mode Status Dynamic wv Disable v 64 0 Dynamic Disable A 64 0 Dynamic Disable 64 0 Dynamic Disable 64 0 Dynamic Disable 64 0 Dynarnic Disable 64 0 Dynamic Disable J 64 0 Dynamic Disable 64 0 Dynamic Disable 64 0 Dynamic Disable 64 0 Dynamic Disable 64 0 Dynarnic Disable 64 0 Dynamic Disable v The maximum number of MAC addre
56. ance Port Config page 7 4 STP Security Configuring protection function for devices can prevent devices from any malicious attack against STP features The STP Security function can be implemented on Port Protect and TC Protect pages Port Protect function is to prevent the devices from any malicious attack against STP features 7 4 1 Port Protect On this page you can configure loop protect feature root protect feature TC protect feature BPDU protect feature and BPDU filter feature for ports You are suggested to enable corresponding protection feature for the qualified ports gt Loop Protect In a stable network a switch maintains the states of ports by receiving and processing BPDU packets from the upstream switch However when link congestions or link failures occurred to the network a down stream switch does not receive BPDU packets for certain period which results in spanning trees being regenerated and roles of ports being reselected and causes the blocked ports to transit to forwarding state Therefore loops may be incurred in the network The loop protect function can suppresses loops With this function enabled a port regardless of the role it plays in instances is always set to blocking state when the port does not receive BPDU packets from the upstream switch and spanning trees are regenerated and thereby loops can be prevented 66 gt Root Protect A CIST and its secondary root bridges are usually l
57. ance the efficiency of packets forwarding remarkably The address filtering feature allows the switch to filter the undesired packets and forbid its forwarding so as to improve the network security The types and the features of the MAC Address Table are listed as the following Type Configuration Aging out Being kept after Relationship between the Way reboot bound MAC address and if the configuration the port is saved Static Manually No Yes The bound MAC address can Address configuring not be learned by the other Table ports in the same VLAN Dynamic Automatically Yes No The bound MAC address can Address learning be learned by the other ports Table in the same VLAN Filtering Manually No Yes Address configuring Table Table 5 1 Types and features of Address Table This function includes four submenus Address Table Static Address Dynamic Address and Filtering Address 5 4 1 Address Table On this page you can view all the information of the Address Table Choose the menu Switching gt MAC Address Address Table to load the following page 36 Search Option DO MAC Address Format 00 00 00 00 00 01 O VLAN ID 1 4094 O Port Fon O Type Address Table MAC Address 00 0A EB 13 09 69 58 66 BA DF 7B 05 6C 62 6D F7 32 09 6C 62 6D F7 32 1C Total MAC Address 4 Note Static Dynamic Filtering VLAN ID Port Type Aging Status 1 15 Dynamic Aging 1 15 Dy
58. and calculate the path costs of ports in an MST region It is an important criterion on determining the root port The lower value has the higher priority Select Enable Disable Edge Port The edge port can transit its state from blocking to forwarding rapidly without waiting for forward delay Select the P2P link status If the two ports in the P2P link are root port or designated port they can transit their states to forwarding rapidly to reduce the unnecessary forward delay Select Enable to perform MCheck operation on the port Unchange means no MCheck operation Displays the STP version of the port Displays the role of the port played in the STP Instance e Root Port Indicates the port that has the lowest path cost from this bridge to the Root Bridge and forwards packets to the root 61 e Designated Port Indicates the port that forwards packets to a downstream network segment or switch e Master Port Indicates the port that connects a MST region to the common root The path from the master port to the common root is the shortest path between this MST region and the common root Alternate Port Indicates the port that can be a backup port of a root or master port Backup Port Indicates the port that is the backup port of a designated port Disabled Indicates the port that is not participating in the STP Port Status Displays the working status of the port e Forwarding In this status the port can receive
59. apability that is used by participants in GARP Applications GARP Participants to register and de register attribute values with other GARP Participants within a Bridged LAN The definition of the attribute types the values that they can carry and the semantics that are associated with those values when registered are specific to the operation of the GARP Application concerned 130 Generic Multicast Registration Protocol GMRP GMRP allows network devices to register end stations with multicast groups GMRP requires that any participating network devices or end stations comply with the IEEE 802 1p standard Group Attribute Registration Protocol GARP See Generic Attribute Registration Protocol IEEE 802 1D Specifies a general method for the operation of MAC bridges including the Spanning Tree Protocol IEEE 802 1Q VLAN Tagging Defines Ethernet frame tags which carry VLAN information It allows switches to assign endstations to different virtual LANs and defines a standard way for VLANs to communicate across switched networks IEEE 802 1p An IEEE standard for providing quality of service QoS in Ethernet networks The standard uses packet tags that define up to eight traffic classes and allows switches to transmit packets based on the tagged priority value IEEE 802 1X Port Authentication controls access to the switch ports by requiring users to first enter a user ID and password for authentication IEEE 802 3ac Defines fra
60. ate button to create a VLAN Enter the VLAN ID and the description for the VLAN Meanwhile specify its member ports 49 3 Modify View VLAN Optional On the VLAN gt 802 1Q VLAN gt VLAN Config page click the Edit Detail button to modify view the information of the corresponding VLAN 4 Delete VLAN Optional On the VLAN gt 802 1Q VLAN gt VLAN Config page select the desired entry to delete the corresponding VLAN by clicking the Delete button 6 2 Application Example for 802 1Q VLAN gt Network Requirements e Switch Ais connecting to PC A and Server B e Switch B is connecting to PC B and Server A e PC Aand Server Ais in the same VLAN e PCB and Server B is in the same VLAN e PCs in the two VLANs cannot communicate with each other v Network Diagram Server B ort 3 Switch A Port2 Port 7 Switch B 50 gt Configuration Procedure e Configure Switch A Step Operation Description 1 Configure the Required On VLAN gt 802 1Q VLAN gt Port Config page configure Link Type of the the link type of Port 2 Port 3 and Port 4 as ACCESS TRUNK and ports ACCESS respectively 2 Create VLAN10 Required On VLAN gt 802 1Q VLAN gt VLAN Config page create a VLAN with its VLANID as 10 owning Port 2 and Port 3 3 Create VLAN20 Required On VLAN gt 802 1Q VLAN gt VLAN Config page create a VLAN with its VLANID as 20 owning Port 3 and Port 4 e Configure Switch B
61. ble Auto O 8 Disable 128 Auto Auto Disable Auto E O 9 Disable 128 Auto Auto Disable Auto O 10 Disable 128 Auto Auto Disable Auto 11 Disable 128 Auto Auto Disable Auto 12 Disable 128 Auto Auto Disable Auto 13 Disable 128 Auto Auto Disable Auto 14 Disable 128 Auto Auto Disable Auto L 15 Disable 128 Auto Auto Disable Auto y Apply Refresh Help Note Ifthe Path Cast of a port is setto 0 it will alter automatically according to the port s link speed Figure 7 6 Port Config The following entries are displayed on this screen gt Port Config Port Select Select Port Status Priority ExtPath Cost IntPath Cost Edge Port P2P Link MCheck STP Version Port Role Click the Select button to quick select the corresponding port based on the port number you entered Select the desired port for STP configuration It is multi optional Displays the port number of the switch Select Enable Disable STP function for the desired port Enter a value from 0 to 240 divisible by 16 Port priority is an important criterion on determining if the port connected to this port will be chosen as the root port The lower value has the higher priority ExtPath Cost is used to choose the path and calculate the path costs of ports in different MST regions It is an important criterion on determining the root port The lower value has the higher priority IntPath Cost is used to choose the path
62. ble the Storm Control and the Ingress rate control atthe same time 2 Ifyou select Manual to set Ingress Egress rate the system will automatically select integral multiple of 64Kbps that closest to the rate you entered as the real Ingress Egress rate Figure 9 10 Rate Limit The following entries are displayed on this screen gt Rate Limit Config Port Select Click the Select button to quick select the corresponding port based on the port number you entered Select Select the desired port for Rate configuration It is multi optional Port Displays the port number of the Switch Ingress Rate Kbps Configure the bandwidth for receiving packets on the port You can select a rate from the dropdown list or select Manual to set Ingress rate the system will automatically select integral multiple of 64Kbps that closest to the rate you entered as the real Ingress rate 98 Egress Rate Kbps Configure the bandwidth for sending packets on the port You can select a rate from the dropdown list or select Manual to set Egress rate the system will automatically select integral multiple of 64Kbps that closest to the rate you entered as the real Egress rate LAG Displays the LAG number which the port belongs to Anote 1 If you enable ingress rate limit feature for the storm control enabled port storm control feature will be disabled for this port 2 When selecting Manual to set Ingress Egress rate the system will automatica
63. ce Port Config A port can play different roles in different spanning tree instance On this page you can configure the parameters of the ports in different instance IDs as well as view status of the ports in the specified instance Choose the menu Spanning Tree MSTP Instance gt Instance Port Config to load the following page 64 Port Config Instance ID iv Port Select Port Priority Path Cost Port Role Port Status LAG O O 1 128 Auto m O 2 128 Auto m m O 3 128 Auto a O 4 128 Auto z O 5 128 Auto O 6 128 Auto a O 7 128 Auto a O 8 128 Auto E d O g 128 Auto a ES O 10 128 Auto ae Ji O 11 128 Auto z e O 12 128 Auto ses O 13 128 Auto 25 O 14 128 Auto gt O 15 128 Auto y Apply Note Ifthe Path Cost of a port is setto 0 it will alter automatically according to the ports link speed Figure 7 9 Instance Port Config The following entries are displayed on this screen gt Port Config Instance ID Select the desired instance ID for its port configuration Port Select Click the Select button to quick select the corresponding port based on the port number you entered Select Select the desired port to specify its priority and path cost It is multi optional Port Displays the port number of the switch Priority Enter the priority of the port in the instance It is an important criterion on determining if the port conn
64. ct Select the desired port for configuration It is multi optional 23 Port Description Status Speed and Duplex Flow Control LAG Ant 1 Displays the port number Give a description to the port for identification Allows you to Enable Disable the port When Enable is selected the port can forward the packets normally Select the Speed and Duplex mode for the port The device connected to the switch should be in the same Speed and Duplex mode with the switch When Auto is selected the Speed and Duplex mode will be determined by auto negotiation For the SFP port this Switch does not support auto negotiation Allows you to Enable Disable the Flow Control feature When Flow Control is enabled the switch can synchronize the speed with its peer to avoid the packet loss caused by congestion Displays the LAG number which the port belongs to The switch can not be managed through the disabled port Please enable the port which is used to manage the switch 2 The parameters of the port members in a LAG should be set as the same 3 When using the SFP port with a 100M module or a gigabit module you need to configure its corresponding Speed and Duplex mode For 100M module please select 100MFD while select 1000MFD for gigabit module By default the Speed and Duplex mode of SFP port is 1000MFD 5 1 2 Port Mirror Port Mirror a packets obtaining technology functions to forward copies of packets
65. ction allowing you to configure the basic features for the port is implemented on the Port Config Port Mirror Port Security and Port Isolation pages 5 1 1 Port Config On this page you can configure the basic parameters for the ports When the port is disabled the packets on the port will be discarded Disabling the port which is vacant for a long time can reduce the power consumption effectively And you can enable the port when it is in need The parameters will affect the working mode of the port please set the parameters appropriate to your needs Choose the menu Switching gt Port gt Port Config to load the following page Port Config Pot Select Select Port Description Status Speed and Duplex Flow Control LAG O Disable v 10MHD Disable v O 1 Enable Auto Disable A O 2 Enable Auto Disable O 3 Enable Auto Disable Fj 4 Enable Auto Disable O 5 Enable Auto Disable O 6 Enable Auto Disable O 7 Enable Auto Disable O 8 Enable Auto Disable 3 O 9 Enable Auto Disable O 10 Enable Auto Disable Fj 11 Enable Auto Disable Fj 12 Enable Auto Disable O 13 Enable Auto Disable O 14 Enable Auto Disable O 15 Enable Auto Disable v Apply Note The Port Description should be not more than 16 characters Figure 5 1 Port Config Here you can view and configure the port parameters gt Port Config Port Select Click the Select button to quick select the corresponding port based on the port number you entered Sele
66. d Services Code Point DSCP DSCP uses a six bit tag to provide for up to 64 different forwarding behaviors Based on network policies different kinds of traffic can be marked for different kinds of forwarding The DSCP bits are mapped to the Class of Service categories and then into the output queues Domain Name Service DNS A system used for translating host names for network nodes into IP addresses Dynamic Host Control Protocol DHCP Provides a framework for passing configuration information to hosts on a TCP IP network DHCP is based on the Bootstrap Protocol BOOTP adding the capability of automatic allocation of reusable network addresses and additional configuration options Extensible Authentication Protocol over LAN EAPOL EAPOL is a client authentication protocol used by this switch to verify the network access rights for any device that is plugged into the switch A user name and password is requested by the switch and then passed to an authentication server e g RADIUS for verification EAPOL is implemented as part of the IEEE 802 1X Port Authentication standard GARP VLAN Registration Protocol GVRP Defines a way for switches to exchange VLAN information in order to register necessary VLAN members on ports along the Spanning Tree so that VLANs defined in each switch can work automatically over a Spanning Tree network Generic Attribute Registration Protocol GARP The GARP provides a generic attribute dissemination c
67. d on MAC addresses Link Aggregation See Port Trunk Link Aggregation Control Protocol LACP Allows ports to automatically negotiate a trunked link with LACP configured ports on another device Management Information Base MIB An acronym for Management Information Base It is a set of database objects that contains information about a specific device MD5 Message Digest Algorithm An algorithm that is used to create digital signatures It is intended for use with 32 bit machines and is safer than the MD4 algorithm which has been broken MD5 is a one way hash function meaning that it takes a message and converts it into a fixed string of digits also called a message digest Network Time Protocol NTP NTP provides the mechanisms to synchronize time across the network The time servers operate in a hierarchical master slave configuration in order to synchronize local clocks within the subnet and to national time standards via wire or radio Port Authentication See IEEE 802 1X Port Mirroring A method whereby data on a target port is mirrored to a monitor port for troubleshooting with a logic analyzer or RMON probe This allows data on the target port to be studied unobstructively Port Trunk Defines a network link aggregation and trunking method which specifies how to create a single high speed logical link that combines several lower speed physical links Remote Authentication Dial in User Service RADIUS RADIUS is a logon au
68. d the following page Time Info Current System Date 2006 01 01 08 31 40 Sunday Current Time Source Manual Time Config O Manual Date 2006 w 01 sw 01 Time Synchronize with PC s Clock Figure 4 5 System Time The following entries are displayed on this screen gt Time Info Current System Displays the current date and time of the switch Date Current Time Displays the current time source of the switch Source gt Time Config Manual When this option is selected you can set the date and time manually Synchronize with When this option is selected the administrator PC s clock is PC S Clock utilized Anzte The system time will be restored to the default when the switch is restarted and you need reconfigure the system time of the switch 4 1 4 Daylight Saving Time On this page you can configure the Daylight Saving Time of the switch including DST Status Predefined Mode Recurring Mode and Date Mode Choose the menu System System Info Daylight Saving Time to load the following page 13 DST Config DST Status Disable Predefined Mode USA Australia European New Zealand Recurring Mode Offset leo minutes Start Time Week Last Day Su Month 01 00 End Time Week Last Day Sun Month oct o1 00 Date Mode Offset 60 minutes Start Time 00 00 MMIDD HH MM End Time 00 00 MMDD HH MM Figure 4 6 Sy
69. d you can change it appropriate to your needs Enter the subnet mask of the switch Enter the default gateway of the switch 15 Mote 1 Changing the IP address to a different IP segment will interrupt the network communication so please keep the new IP address in the same IP segment with the local network 2 The switch only possesses an IP address The IP address configured will replace the original IP address 3 If the switch gets the IP address from DHCP server you can see the configuration of the switch in the DHCP server if DHCP option is selected but no DHCP server exists in the network the switch will keep obtaining IP address from DHCP server until success 4 If DHCP or BOOTP option is selected the switch will gets network parameters dynamically from the Internet so IP address subnet mask and default gateway can not be configured 5 By default the default IP address is 192 168 0 1 4 2 User Manage User Manage functions to configure the user name and password for users to log on to the Web management page with a certain access level so as to protect the settings of the switch from being randomly changed The User Manage function can be implemented on User Table and User Config pages 4 2 1 User Table On this page you can view the information about the current users of the switch Choose the menu System User Manage User Table to load the following page User Table User ID User Name Access Level Status
70. e communication facility for interfacing to a terminal device over TCP IP Transmission Control Protocol Internet Protocol TCP IP Protocol suite that includes TCP as the primary transport protocol and IP as the network layer protocol Trivial File Transfer Protocol TFTP A TCP IP protocol commonly used for software downloads User Datagram Protocol UDP UDP provides a datagram mode for packet switched communications It uses IP as the underlying transport mechanism to provide access to IP like services UDP packets are delivered just like IP packets connection less datagrams that may be discarded before reaching their targets UDP is useful when TCP would be too complex too slow or just unnecessary Virtual LAN VLAN A Virtual LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network A VLAN serves as a logical workgroup with no physical barriers and allows users to share information and resources as though located on the same LAN Return to CONTENTS 133
71. e network The following figure shows the network diagram in MSTP 55 gt Figure 7 2 Basic MSTP diagram MSTP MSTP divides a network into several MST regions The CST is generated between these MST regions and multiple spanning trees can be generated in each MST region Each spanning tress is called an instance As well as STP MSTP uses BPDUs to generate spanning tree The only difference is that the BPDU for MSTP carry the MSTP configuration information on the switches gt Port States In an MSTP ports can be in the following four states O O O gt Forwarding In this status the port can receive forward data receive send BPDU packets as well as learn MAC address Learning In this status the port can receive send BPDU packets and learn MAC address Blocking In this status the port can only receive BPDU packets Disconnected In this status the port is not participating in the STP Port Roles In an MSTP the following roles exist Root Port Indicates the port that has the lowest path cost from this bridge to the Root Bridge and forwards packets to the root Designated Port Indicates the port that forwards packets to a downstream network segment or switch Master Port Indicates the port that connects a MST region to the common root The path from the master port to the common root is the shortest path between this MST region and the common root Alternate Port Indicates the port that can be a back
72. e switch Priority Specify the priority for the port LAG Displays the LAG number which the port belongs to 93 Anote To complete QoS function configuration you have to go to the Schedule Mode page to select a schedule mode after the configuration is finished on this page Configuration Procedure Step Operation Description 1 Log on to the Port Priority page 2 Select the desired ports for Select the desired ports It is multi optional configuration 3 Select the port priority Required Select a priority from TCO to TC3 4 Select a schedule mode Required Log on to the Schedule Mode page to select a schedule mode 9 1 2 802 1P Priority On this page you can configure 802 1P priority 802 1P gives the Pri field in 802 1Q tag a recommended definition This field is used to divide packets into 8 priorities When 802 1P Priority is enabled the packets with 802 1Q tag are mapped to different priority levels based on 802 1P priority mode The untagged packets are mapped based on port priority mode Choose the menu QoS DiffServ 802 1P Priority to load the following page 802 1P Priority Config 802 1P Priority O Enable Disable Apply Priority and CoS mapping Config Tag id CoS id v Queue TC id v Tad id Cos id Queue TC id Tad id CoS id Queue TC id 0 TC1 1 TCO 2 TCO 3 TC1 4 ea 5 TE 6 TC3 7 TC3 note Among the Queue TC id TCO TC1 TC3 the bigger value the higher priori
73. e you want to determine If the resulting BPDU takes the precedence over the BPDU of the port the port is chosen as the designated port and the BPDU of this port is replaced with the resulting BPDU The port regularly sends out the resulting BPDU If the BPDU of this port takes the precedence over the resulting BPDU the BPDU of this port is not replaced and the port is blocked The port only can receive BPDUs Table 7 2 Selecting root port and designated port 54 Tips In a STP with stable topology only the root port and designated port can forward data and the other ports are blocked The blocked ports only can receive BPDUs RSTP Rapid Spanning Tree Protocol evolved from the 802 1D STP standard enable Ethernet ports to transit their states rapidly The premises for the port in the RSTP to transit its state rapidly are as follows e The condition for the root port to transit its port state rapidly The old root port of the switch stops forwarding data and the designated port of the upstream switch begins to forward data e The condition for the designated port to transit its port state rapidly The designated port is an edge port or connecting to a point to point link If the designated port is an edge port it can directly transit to forwarding state if the designated port is connecting to a point to point link it can transit to forwarding state after getting response from the downstream switch through handshake
74. ease click Saving Config You are suggested to click Saving Config before cutting off the power or rebooting the switch to avoid losing the new configurations Return to CONTENTS Chapter 4 System The System module is mainly for system configuration of the switch including four submenus System Info User Manage System Tools and Access Security 4 1 System Info The System Info mainly for basic properties configuration can be implemented on System Summary Device Description System Time Daylight Saving Time and System IP pages 4 1 1 System Summary On this page you can view the port connection status and the system information The port status diagram shows the working status of 24 10 100Mbps RJ45 ports 4 10 100 1000Mbps RJ45 ports and 2 SFP ports of the switch The ports labeled as 1 24 are 10 100Mbps ports the ports labeled as 26 28 are 10 100 1000Mbps ports the ports labeled as 27F and 28F are SFP ports Choose the menu System System Info System Summary to load the following page 10 12 14 16 18 20 22 24 26F fe fl eid e fi et et s P G NN 2TF 1 13 15 a El fil System Info System Description Device Name Device Location System Contact Hardware Version Firmware Version IP Address Subnet Mask Default Gateway MAC Address System Time Run Time gt Port Status Fu IUI CA WT 24FE 4GE Smart Switch TL SL2428 SHENZHEN www tp link corm TL SL2428 1 0 1 0 0 Bu
75. ect the desired entry to configure the corresponding local log Log Buffer Indicates the RAM for saving system log The inforamtion in the log buffer is displayed on the Log Table page It will be lost when the switch is restarted Log File Indicates the flash sector for saving system log The inforamtion in the log file will not be lost after the switch is restarted and can be exported on the Backup Log page Severity Specify the severity level of the log information output to each channel Only the log with the same or smaller severity level value will be output Status Enable Disable the channel 11 2 3 Remote Log Remote log feature enables the switch to send system logs to the Log Server Log Server is to centralize the system logs from various devices for the administrator to monitor and manage the whole network Choose the menu Maintenance Log Remote Log to load the following page 120 Log Host Select Index Host IP UDP Part Severity Status O si S y O 1 0 0 0 0 514 level_6 Disable O 2 0 0 0 0 514 level_6 Disable O 3 0 0 0 0 514 level_6 Disable O 4 0 0 0 0 514 level_6 Disable Note 1 Up to 4 log hosts are supported 2 There are 8 severity levels marked with values 0 7 The smaller value has the higher priority Figure 11 5 Log Host The following entries are displayed on this screen gt Log Host Index Displays the index of the log host The switch supports 4 log hosts Host IP Configu
76. ected to this port will be chosen as the root port Path Cost Path Cost is used to choose the path and calculate the path costs of ports in an MST region It is an important criterion on determining the root port The lower value has the higher priority Port Role Displays the role of the port played in the MSTP Instance Port Status Displays the working status of the port LAG Displays the LAG number which the port belongs to 65 More The port status of one port in different spanning tree instances can be different Global configuration Procedure for Spanning Tree function Step Operation Description 1 Make clear roles the switches Preparation play in spanning tree instances root bridge or designated bridge 2 Globally configure MSTP Required Enable Spanning Tree function on the switch parameters and configure MSTP parameters on Spanning Tree gt STP Config STP Config page 3 Configure MSTP parameters Required Configure MSTP parameters for ports on for ports Spanning Tree gt Port Config Port Config page 4 Configure the MST region Required Create MST region and configure the role the switch plays in the MST region on Spanning Tree gt MSTP Instance gt Region Config and Instance Config page 5 Configure MSTP parameters Optional Configure different instances in the MST region for instance ports and configure MSTP parameters for instance ports on Spanning Tree gt MSTP Instance gt Inst
77. er of the switch Loop Protect is to prevent the loops in the network brought by recalculating STP because of link failures and network congestions Root Protect is to prevent wrong network topology change caused by the role change of the current legal root bridge TC Protect is to prevent the decrease of the performance and stability of the switch brought by continuously removing MAC address entries upon receiving TC BPDUs in the STP network BPDU Protect is to prevent the edge port from being attacked by maliciously created BPDUs BPDU Filter is to prevent BPDUs flood in the STP network Displays the LAG number which the port belongs to 68 7 4 2 TC Protect When TC Protect is enabled for the port on Port Protect page the TC threshold and TC protect cycle need to be configured on this page Choose the menu Spanning Tree gt STP Security TC Protect to load the following page TC Protect TC Threshold 20 packet 1 100 2 Apply TC Protect Cycle 5 sec 1 10 Help Figure 7 11 TC Protect The following entries are displayed on this screen gt TC Protect TC Threshold Enter a number from 1 to 100 It is the maximum number of the TC BPDUs received by the switch in a TC Protect Cycle The default value is 20 TC Protect Cycle Enter a value from 1 to 10 to specify the TC Protect Cycle The default value is 5 7 5 Application Example for STP Function v Network Requirements e Switch A B C D and E all suppor
78. et some corresponding change However as the new configuration BPDUs cannot be spread in the whole network at once the temporal loop will occur if the port transits its state immediately Therefore STP adopts a state transit mechanism that is the new root port and the designated port begins to forward data after twice forward delay which ensures the new configuration BPDUs are spread in the whole network gt BPDU Comparing Principle in STP mode Assuming two BPDUs BPDU X and BPDU Y If the root bridge ID of X is smaller than that of Y X is superior to Y If the root bridge ID of X equals that of Y but the root path cost of X is smaller than that of Y X is superior to Y If the root bridge ID and the root path cost of X equal those of Y but the bridge ID of X is smaller than that of Y X is superior to Y If the root bridge ID the root path cost and bridge ID of X equal those of Y but the port ID of X is smaller than that of Y X is superior to Y 53 gt STP Generation e Inthe beginning In the beginning each switch regards itself as the root and generates a configuration BPDU for each port on it as a root with the root path cost being 0 the ID of the designated bridge being that of the switch and the designated port being itself e Comparing BPDUs Each switch sends out configuration BPDUs and receives a configuration BPDU on one of its ports from another switch The following table shows the comparing operations
79. ficant conditions informational 6 Informational messages debugging 7 Debug level messages Table 11 1 Log Level The Log function is implemented on the Log Table Local Log Remote Log and Backup Log pages 11 2 1 Log Table The switch supports logs output to two directions namely log buffer and log file The information in log buffer will be lost after the switch is rebooted or powered off whereas the information in log file will be kept effective even the switch is rebooted or powered off Log Table displays the system log information in log buffer Choose the menu Maintenance gt Log gt Log Table to load the following page Log Info Index Time Module Severity Content All Module All Level w 1 2010 01 25 16 17 19 SNTP level_5 Getting time from administer PC OK 2 2006 01 01 08 43 51 SNTP level_5 Getting time from administer PC failed 3 2006 01 01 08 00 04 LACP level_5 LACP registering OK 4 2006 01 01 08 00 01 GYRP level_5 GYRP module initialization OK 5 2006 01 01 08 00 00 QoS level_5 QoS module initialization OK Note 1 There are 8 severity levels marked with value 0 7 The smaller value has the higher priority 2 This page displays logs in the log buffer and at most 512 logs are displayed Figure 11 3 Log Table The following entries are displayed on this screen gt Log Info Index Displays the index of the log information Time Displays the time when the log event occurs The log can get
80. fig and Instance Port Config pages 7 3 1 Region Config On this page you can configure the name and revision of the MST region Choose the menu Spanning Tree MSTP Instance Region Config to load the following page 62 Region Config Region Name 64 70 02 81 54 87 Apply Revision 0 0 65535 Figure 7 7 Region Config The following entries are displayed on this screen gt Region Config Region Name Create a name for MST region identification using up to 32 characters Revision Enter the revision from 0 to 65535 for MST region identification 7 3 2 Instance Config Instance Configuration a property of MST region is used to describe the VLAN to Instance mapping configuration You can assign VLAN to different instances appropriate to your needs Every instance is a VLAN group independent of other instances and CIST Choose the menu Spanning Tree MSTP Instance Instance Config to load the following page Instance Table Instance ID Select Select Instance Status Priority LAN ID O O 1 Disable 32768 Clear O 2 Disable 32768 Clear O 3 Disable 32768 Clear O 4 Disable 32768 Clear O 5 Disable 32768 Clear O 6 Disable 32768 Clear O 7 Disable 32768 Clear O 8 Disable 32768 Clear CIST Enable 32768 1 4094 Apply WLAN Instance Mapping VLAN ID 1 4094 Instance ID 0 8 Dis the cist Apply Note The format of input VLAN ID should be like 1 3 4 7 11
81. formation for setup and management of TL SL2428 switch Please read this guide carefully before operation 1 1 Intended Readers This Guide is intended for network managers familiar with IT concepts and network terminologies 1 2 Conventions In this Guide the following conventions are used gt The switch or TL SL2428 mentioned in this Guide stands for TL SL2428 24 Port 10 100Mbps 4 Port Gigabit Smart Switch without any explanation gt Menu Name gt Submenu Name gt Tab page indicates the menu structure System System Info gt System Summary means the System Summary page under the System Info menu option that is located under the System menu gt Bold font indicates a button a toolbar icon menu or menu item Symbols in this Guide Symbol Description A Ignoring this type of note might result in a malfunction or damage to the Note device This format indicates important information that helps you make better use Tips of your device 1 3 Overview of This Guide Chapter Introduction Chapter 1 About This Guide Introduces the guide structure and conventions Chapter 2 Introduction Introduces the features application and appearance of TL SL2428 switch Chapter 3 Login to the Switch Introduces how to log on to TL SL2428 Web management page Chapter Introduction Chapter 4 System This module is used to configure system properties of the switch
82. forward data receive send BPDU packets as well as learn MAC address Learning In this status the port can receive send BPDU packets and learn MAC address e Blocking In this status the port can only receive BPDU packets Disconnected In this status the port is not participating in the STP LAG Displays the LAG number which the port belongs to Mnore 1 Configure the ports connected directly to terminals as edge ports and enable the BPDU protection function as well This not only enables these ports to transit to forwarding state rapidly but also secures your network 2 All the links of ports in a LAG can be configured as point to point links 3 When the link of a port is configured as a point to point link the spanning tree instances owning this port are configured as point to point links If the physical link of a port is not a point to point link and you forcibly configure the link as a point to point link temporary loops may be incurred 7 3 MSTP Instance MSTP combines VLANs and spanning tree together via VLAN to instance mapping table VLAN to spanning tree mapping By adding MSTP instances it binds several VLANs to an instance to realize the load balance based on instances Only when the switches have the same MST region name MST region revision and VLAN to Instance mapping table the switches can be regarded as in the same MST region The MSTP Instance function can be implemented on Region Config Instance Con
83. from one multiple ports mirrored port to a specific port mirroring port Usually the mirroring port is connected to a data diagnose device which is used to analyze the mirrored packets for monitoring and troubleshooting the network Choose the menu Switching Port Port Mirror to load the following page 24 Mirror Group List Group Mirroring Mode Mirrored Port Operation Ingress a 1 0 Edit Egress za Ingress ane 2 0 Edit Egress ae Ingress 3 0 Edit Egress za Ingress T 4 0 Edit Egress ao Figure 5 2 Mirroring Port The following entries are displayed on this screen gt Mirror Group List Group Displays the mirror group number Mirroring Displays the mirroring port number Mode Displays the mirror mode the value will be Ingress or Egress Mirrored Port Displays the mirrored ports Operation Click Edit to configure the mirror group Click Edit to display the following figure 25 Mirror Group Number 1 v Mirroring Port Mirroring Port Disable v Apply Mirrored Port Port Select Select Port Ingress Egress LAG O Disable iv Disable iv O 1 Disable Disable B O 2 Disable Disable O 3 Disable Disable a 4 O 4 Disable Disable O 5 Disable Disable O 6 Disable Disable ss J O 7 Disable Disable O 8 Disable Disable En O 9 Disable Disable aa O 10 Disable Disable O 11 Disable Disable an O 12 Disable Disable v Apply Figure 5 3 Mirroring Port The following en
84. g MAC address entries act on all the ports in the corresponding VLAN Choose the menu Switching MAC Address gt Filtering Address to load the following page Create Filtering Address MAC Address Format 00 00 00 00 00 01 VLAN ID 1 4094 Search Option Search Option AII v Filtering Address Table Select MAC Address YLAN ID Port Type Aging Status Al Total MAC Address 0 Note The maximum ofthe displayed entries is 100 by default please click the Search button to get the complete address entries Figure 5 14 Filtering Address The following entries are displayed on this screen gt Create Filtering Address MAC Address Enter the MAC Address to be filtered VLAN ID Enter the corresponding VLAN ID of the MAC address 41 gt Search Option Search Option Select a Search Option from the pull down list and click the Search button to find your desired entry in the Filtering Address Table e MAC Enter the MAC address of your desired entry e VLAN ID Enter the VLAN ID number of your desired entry gt Filtering Address Table Select Select the entry to delete the corresponding filtering address It is multi optional MAC Address Displays the filtering MAC Address VLAN ID Displays the corresponding VLAN ID Port Here the symbol __ indicates no specified port Type Displays the Type of the MAC address Aging Status Displays the Aging Status of the MAC address
85. g Tree STP Security Port Protect to load the following page 67 Port Protect Select Port Loop Protect Port Select Root Protect TC Protect BPDU Protect BPDU Filter LAG Disable v Disable w Disable Disable v O Disable v O 1 Disable O 2 Disable O 3 Disable O 4 Disable O 5 Disable O 6 Disable O T Disable O 8 Disable O g Disable O 10 Disable O 11 Disable O 12 Disable O 13 Disable O 14 Disable O 15 Disable Disable Disable Disable Disable 4 Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable L4 Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable Disable lt Figure 7 10 Port Protect The following entries are displayed on this screen gt Port Protect Port Select Select Port Loop Protect Root Protect TC Protect BPDU Protect BPDU Filter LAG Click the Select button to quick select the corresponding port based on the port number you entered Select the desired port for port protect configuration It is multi optional Displays the port numb
86. g entries are displayed on this screen gt Tracert Config Destination IP Enter the IP address of the destination device Max Hop Specify the maximum number of the route hops the test data can pass through Return to CONTENTS 125 Appendix A Specifications Ethernet 10Mbps HD 20Mbps FD Transmission Rate Fast Ethernet 100Mbps HD 200Mbps FD Gigabit Ethernet 2000Mbps FD 10Base T UTP STP of Cat 3 or above 100Base TX UTP STP of Cat 5 or above Transmission Medium 100Base FX MMF or SMF SFP Module Optional 1000Base T 4 pair UTP lt 100m of Cat 5 Cat 5e Cat 6 1000Base X MMF or SMF SFP Module Optional Power System 10 100M LEDs 1000M LEDs Transmission Method Store and Forward 10BASE T 14881pps port Packets Forwarding Rate 100BASE TX 148810pps port 1000Base T 1488095pps port Operating Temperature 0 C 40 C Operating Storage Temperature 40 C 70 C Environment Operating Humidity 10 90 RH Non condensing Storage Humidity 5 90 RH Non condensing Return to CONTENTS 126 Appendix B Configuring the PCs In this section we ll introduce how to install and configure the TCP IP correctly in Windows 2000 First make sure your Ethernet Adapter is working refer to the adapter s manual if necessary 1 Configure TCP IP component 1 On the Windows taskbar click the Start button and then click Control Panel 2 Click the Network and Internet Connections icon and then click on
87. g entries are displayed on this screen gt Global Config Hash Algorithm gt LAG Table Select Group Number Description Member Operation Select the applied scope of Aggregate Arithmetic which results in choosing a port to transfer the packets e SRC MAC DST MAC When this option is selected the Aggregate Arithmetic will apply to the source and destination MAC addresses of the packets e SRC IP DST IP When this option is selected the Aggregate Arithmetic will apply to the source and destination IP addresses of the packets Select the desired LAG It is multi optional Displays the LAG number here Displays the description of LAG Displays the LAG member Allows you to view or modify the information for each LAG e Edit Click to modify the settings of the LAG e Detail Click to get the information of the LAG Click the Detail button for the detailed information of your selected LAG 31 Detail Info Group Number LAG1 LAG Type Static Port Status Enable Rate Auto Port mirror Disable Ingress Bandwidth bps Egress Bandwidth bps Broadcast Control bps Multicast Control bps UL Control bps QoS Priority Coso Join VLAN 1 Figure 5 7 Detail Information 5 2 2 Static LAG On this page you can manually configure the LAG Choose the menu Switching LAG Static LAG to load the following page LAG Config Group Number LAG1 v Descri
88. hapter 5 Switching ic A A si 23 5 1 PO Tiara 23 5 1 1 Port CON iaa AAA A ee 23 5 1 2 Port MITO acia 24 5 1 3 Port Secundaria i ais aia eee Bim 27 5 1 4 Port ISOIAUO a APEE E E E E E idad da 29 S A E E ET E E ES 30 E LAG Table cia a a a ua eseanta 30 5 2 2 E O NN 32 5 35 Traffic Monito a dai aa 33 5 3 1 Traffic SUMMA cional 33 532 Thalia 34 0 4 MAG Address curar 36 5 4 1 Address Table Wii ae ib evi ee eats he DA eels 36 5 4 2 SAC AUS ti AA a AA NE 38 5 4 3 Dynamic Address iiasiic encase cei tictieenbeed A ta 39 5 4 4 Filtering Address iii AAA i ae 41 Chapter A Fesaestechhed bhacdude a aA a a ea Ea a ra a teed aed te adst aada enaa 43 A o aa a e a a a 44 Bet MEAN ETa e EE NA ET 46 6 1 2 Port COmntig E E A E A S E A EA S TETTE 48 6 2 Application Example for 802 1Q VLAN ooconocococcccccccconnnononcnnnnnocnnnannnnncnnnnnnnnnannnnnccnnnno 50 Chapter 7 Spanning Tree panini areren einari ien iaai e iksa a aaaea aiia aiie dadi 52 LA OIP COMTI nrerin A A ee e AA 57 LEE STA a tres ee deca los 57 A e A A Aes 59 122 o OE aie PEE A E AE eeaanceeans dea E 60 Sr MSIE ASCO ad aa e a O 62 7 3 1 Region CONTA Matti A A AE ate hel 62 7 3 2 Instance Corina is ais 63 7 3 3 Instance Port Configs enei e Aea i N A E a 64 TA STPS OU Visa 66 7 4 1 Port Protection 66 GAZ IE Proteina A ii ad 69 7 5 Application Example for STP Function ooooooonccccccnnncccnnnnononncnnonoconncnnnnnnnnnncncnnannnnncccnnno 69 Chapter 8 Multicast
89. he switch removes the MAC address entries related to a network device if no packet is received from the device within the aging time On this page you can configure the dynamic MAC address entry Choose the menu Switching gt MAC Address gt Dynamic Address to load the following page 39 Aging Config Auto Aging Enable Disable Aging Time 300 sec 10 630 default 300 Apply Search Option Search Option All v Dynamic Address Table Select MAC Address WLAN ID Port Type Aging Status O D0 04 EB 13 09 69 1 15 Dynamic Aging O 58 66 BA DF 7B8 05 1 15 Dynamic Aging O 6C 62 6D F 7 32 09 1 15 Dynamic Aging O 6C 62 6D F7 32 1C 1 3 Dynamic Aging Al Total MAC Address 4 Note The maximum ofthe displayed entries is 100 by default please click the Search button to get the complete address entries Figure 5 13 Dynamic Address The following entries are displayed on this screen gt Aging Config Auto Aging Allows you to Enable Disable the Auto Aging feature Aging Time Enter the Aging Time for the dynamic address Search Option Search Option Select a Search Option from the pull down list and click the Search button to find your desired entry in the Dynamic Address Table e MAC Enter the MAC address of your desired entry e VLAN ID Enter the VLAN ID number of your desired entry e Port Enter the Port number of your desired entry Dynamic Address Table Select Select the ent
90. here Access Displays the right of the Community to access the View MIB View Displays the Views which the Community can access Operation Click the Edit button to modify the MIB View and the Access right of the Community and then click the Modify button to apply Mote The default MIB View of SNMP Community is viewDefault Configuration procedure e If SNMPv3 is employed please take the following steps Step Operation Description 1 Enable SNMP function globally Required On the SNMP gt SNMP Config Global Config page enable SNMP function globally 2 Create SNMP View Required On the SNMP gt SNMP Config gt SNMP View page create SNMP View of the management agent The default View Name is viewDefault and the default OID is 1 3 Create SNMP Group Required On the SNMP gt SNMP Config SNMP Group page create SNMP Group for SNMPv3 and specify SNMP Views with various access levels for SNMP Group 4 Create SNMP User Required On the SNMP gt SNMP Config gt SNMP User page create SNMP User in the Group and configure the auth privacy mode and auth privacy password for the User 109 e If SNMPv1 or SNMPv2c is employed please take the following steps Step Operation Description 1 Enable SNMP function globally Required On the SNMP gt SNMP Config Global Config page enable SNMP function globally 2 Create SNMP View Required On the SNMP gt SNMP Config
91. his switch supports SNMP v3 and is compatible with SNMP 1 and SNMP v2c The SNMP versions adopted by SNMP Management Station and SNMP Agent should be the same Otherwise SNMP Management Station and SNMP Agent can not communicate with each other normally You can select the management mode with proper security level according to your actual application requirement 101 SNMP v1 SNMP v1 adopts Community Name authentication The community name is used to define the relation between SNMP Management Station and SNMP Agent The SNMP packets failing to pass community name authentication are discarded The community name can limit access to SNMP Agent from SNMP NMS functioning as a password SNMP v2c SNMP v2c also adopts community name authentication It is compatible with SNMP v1 while enlarges the function of SNMP v1 SNMP v3 Basing on SNMP v1 and SNMP v2c SNMP v3 extremely enhances the security and manageability It adopts VACM View based Access Control Model and USM User Based Security Model authentication The user can configure the authentication and the encryption functions The authentication function is to limit the access of the illegal user by authenticating the senders of packets Meanwhile the encryption function is used to encrypt the packets transmitted between SNMP Management Station and SNMP Agent so as to prevent any information being stolen The multiple combinations of authentication function and encryption function can guaran
92. ifferent priority levels based on 802 1P priority mode if 8021 1P Priority mode is enabled the untagged non IP datagram are mapped based on port priority mode Choose the menu QoS gt DiffServ DSCP Priority to load the following page 95 DSCP Priority Config DSCP Priority Enable Disable Apply Priority Level DSCP x Priority Level v DSCP Priority Level DSCP Priority Level 0 TCO 1 TCO A 2 TCO 3 TCO 4 TCO 5 TCO 6 TCO 7 TCO A 8 TCO 9 TCO 10 TCO 11 TCO 12 TCO 13 TCO 14 TCO 15 TCO 16 TC1 17 TC1 18 TC1 19 TC1 v Apply note Among the priority levels TCO TC1 TC3 the bigger value the higher priority Figure 9 8 DSCP Priority The following entries are displayed on this screen gt DSCP Priority Config DSCP Priority Select Enable or Disable DSCP Priority gt Priority Level DSCP Indicates the priority determined by the DS region of IP datagram It ranges from 0 to 63 Priority Level Indicates the priority level the packets with tag are mapped to The priority levels are labeled as TCO TC1 TC2 and TC3 Mote To complete QoS function configuration you have to go to the Schedule Mode page to select a schedule mode after the configuration is finished on this page Configuration procedure Step Operation Description 1 Log on to the DSCP Priority page 2 Enable DP priority function Required By default the DSCP priority function is disabled 96 priority level Map
93. ild 20120822 Rel 54711 192 168 0 1 255 255 255 0 64 70 02 81 54 87 2006 01 01 08 27 42 0 day 0 hour 27 min 43 sec Figure 4 1 System Summary Indicates the 100Mbps port is at the speed of 100Mbps Indicates the 100Mbps port is at the speed of 10Mbps 10 Indicates the 100Mbps port is not connected to a device 3 Indicates the 1000Mbps port is not connected to a device Indicates the 1000Mbps port is at the speed of 1000Mbps Indicates the 1000Mbps port is at the speed of 10Mbps or 100Mbps Indicates the SFP port is not connected to a device Indicates the SFP port is at the speed of 1000Mbps DI et e e Indicates the SFP port is at the speed of 100Mbps When the cursor moves on the port the detailed information of the port will be displayed Port 15 Type 100M RJ45 Speed 100M FullDuplex Status Connected Enable Figure 4 2 Port Information gt Port Info Port Displays the port number of the switch Type Displays the type of the port Speed Displays the maximum transmission speed of the port Status Displays the connection status of the port Click a port to display the bandwidth utilization on this port The actual rate divided by theoretical maximum rate is the bandwidth utilization Figure 4 3 displays the bandwidth utilization monitored every four seconds Monitoring the bandwidth utilization on each port facilitates you to monitor the network traffic and analyze the network abnormities
94. ion for the edge ports which are connected to the PC and server Return to CONTENTS 72 Chapter 8 Multicast gt Multicast Overview In the network packets are sent in three modes unicast broadcast and multicast In unicast the source server sends separate copy information to each receiver When a large number of users require this information the server must send many pieces of information with the same content to the users Therefore large bandwidth will be occupied In broadcast the system transmits information to all users in a network Any user in the network can receive the information no matter the information is needed or not Point to multipoint multimedia business such as video conferences and VoD video on demand plays an important part in the information transmission field Suppose a point to multi point service is required unicast is suitable for networks with sparsely users whereas broadcast is suitable for networks with densely distributed users When the number of users requiring this information is not certain unicast and broadcast deliver a low efficiency Multicast solves this problem It can deliver a high efficiency to send data in the point to multi point service which can save large bandwidth and reduce the network load In multicast the packets are transmitted in the following way as shown in Figure 8 1 l 1 Multicast Source Multicast Streams amp Router Swi
95. itions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operation Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment CE Mark Warning CE This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures E MpoaykT ceptucpikoBaHo 3riaHo c npasnnamn cncremn YkpCEMPO Ha BianoBiaHicre BuMoram HOpMaTNBHNX AOKyMeHTiB Ta BUMOraM WO nepeabadeni YMHHNMN 3aKOHOgaBYNMN akTamu YkpaiHn Safety Information e When product has power button the power button is one of the way to shut off the product When there is no power button the only way to completely shut off power is to disconnect the product or the power adapter from the power source e Don t disassemble the product or make repairs yourself You run the risk of electric shock and voiding the limited warranty If you need service please contact us e Avoid water and wet locations This product can be used in the following countries CONTENTS Package Contents e mail 1 Chapter 1 About this Guide 2 0 0 0 0 cece ceeccccecce cece eeeeeeeeaeeeeeee eee cena aaeeeeeeeesesecceeeeeeeeeeseesenseieeeeeeeeeees 2 1 1 Intended Readers ii tt ai a A cleverni ieee A en 2 120 Convention i
96. ive IGMP query message from the router port it will consider this port is not a router port any more Specify the aging time of the member port Within this time if the switch doesn t receive IGMP report message from the member port it will consider this port is not a member port any more Specify the interval between the switch receiving a leave message from a host and the switch removing the host from the multicast groups Select the static router port which is mainly used in the network with stable topology Click the Select button to quick select the corresponding VLAN ID based on the ID number you entered Select the desired VLAN ID for configuration It is multi optional Displays the VLAN ID Displays the router port time of the VLAN Displays the member port time of the VLAN Displays the leave time of the VLAN 79 Router Port Displays the router port of the VLAN Ano The settings here will be invalid when multicast VLAN is enabled Configuration procedure Step Operation Description 1 Enable IGMP Snooping Required Enable IGMP Snooping globally on the switch function and for the port on Multicast IGMP Snooping Snooping Config and Port Config page 2 Configure the multicast Optional Configure the multicast parameters for VLANs on parameters for VLANs Multicast IGMP Snooping VLAN Config page If a VLAN has no multicast parameters configuration it indicates the IGMP Snooping is
97. k layer in OSI model and it can identify the data link layer encapsulation of the packet only so you can add the VLAN tag field into the data link layer encapsulation for identification In 1999 IEEE issues the IEEE 802 1Q protocol to standardize VLAN implementation defining the structure of VLAN tagged packets IEEE 802 1Q protocol defines that a 4 byte VLAN tag is encapsulated after the destination MAC address and source MAC address to show the information about VLAN As shown in the following figure a VLAN tag contains four fields including TPID Tag Protocol Identifier Priority CFl Canonical Format Indicator and VLAN ID VLAN Tag Figure 6 2 Format of VLAN Tag 1 TPID TPID is a 16 bit field indicating that this data frame is VLAN tagged By default it is 0x8100 2 Priority Priority is a 3 bit field referring to 802 1p priority Refer to section QoS amp QoS profile for details 3 CFI CFI is a 1 bit field indicating whether the MAC address is encapsulated in the standard format in different transmission media This field is not described in detail in this chapter 4 VLAN ID VLAN ID is a 12 bit field indicating the ID of the VLAN to which this packet belongs It is in the range of 0 to 4 095 Generally O and 4 095 is not used so the field is in the range of 1 to 4 094 VLAN ID identifies the VLAN to which a packet belongs When the switch receives an un VLAN tagged packet it will encapsulate a VLA
98. ke the configuration on this page and the configuration on IP Range page together to function to implement multicast filter function on the switch Choose the menu Multicast Multicast Filter Port Filter to load the following page Port Filter Config Pot selec Select Port Filter Action Mode Bound IP Range ID Max Groups LAG O Disable v Permit v O 1 Disable permit 256 A O 2 Disable permit 256 O 3 Disable permit 256 O 4 Disable permit 256 O 5 Disable permit 256 O 6 Disable permit 256 J O 7 Disable permit 256 O 8 Disable permit 256 O g Disable permit 256 O 10 Disable permit 256 O 11 Disable permit 256 O 12 Disable permit 256 y Note 1 The port filter configuration here has no effect on static multicast IP 2 Up to 15 IP Ranges can be bound to one port Please input the Bound IP Range ID in the format like 1 5 8 Figure 8 11 Port Filter The following entries are displayed on this screen gt Port Filter Config Port Select Select Port Filter Action Mode Bound IP Range ID Max Groups Click the Select button to quick select the corresponding port based on the port number you entered Select the desired port for multicast filtering It is multi optional Displays the port number Select Enable Disable multicast filtering feature on the port Select the action mode to process multicast packets when the multicast IP is in the filtering IP range Permit Only the mul
99. ktsb4Octets Pkts65to1 27 Octets Pkts128t02550ctets Pkts256t0511Octets Broadcast Multicast Unicast S E i E a Mm 0 0 0 0 Collisions 0 0 0 0 0 Pkts51 2to10230ctets O PktsOver10230ctets 0 Figure 5 10 Traffic Statistics 34 The following entries are displayed on this screen gt Auto Refresh Auto Refresh Refresh Rate Statistics Port Received Sent Broadcast Multicast Unicast Alignment Errors UndersizePkts Pkts64Octets Pkts65to127Octets Pkts128to255Octets Pkts256to5110Octets Pkts512to10230Octets PktsOver10230Octets Collisions Allows you to Enable Disable refreshing the Traffic Summary automatically Enter a value in seconds to specify the refresh interval Enter a port number and click the Select button to view the traffic statistics of the corresponding port Displays the details of the packets received on the port Displays the details of the packets transmitted on the port Displays the number of good broadcast packets received or transmitted on the port The error frames are not counted in Displays the number of good multicast packets received or transmitted on the port The error frames are not counted in Displays the number of good unicast packets received or transmitted on the port The error frames are not counted in Displays the number of the received packets that have a bad Frame Check Sequence FCS with a non integral octet
100. lays the Security Level of the group Displays the Read View name in the entry Displays the Write View name in the entry Displays the Notify View name in the entry Click the Edit button to modify the Views in the entry and click the Modify button to apply Anote Every Group should contain a Read View The default Read View is viewDefault 10 1 4 SNMP User The User in a SNMP Group can manage the switch via the management station software The User and its Group have the same security level and access right You can configure the SNMP User on this page Choose the menu SNMP SNMP Config SNMP User to load the following page 106 User Config User Name 16 characters maximum User Type Local User v Group Name v Security Model v1 v Security Level n Auth Mode Auth Password 16 characters maximum Privacy Mode Privacy Password 16 characters maximum User Table Security Privacy i Select User Name User Type Group Name Model Security Level Auth Mode E Operation All Note The security model and security level ofthe user should be the same with that of its group Figure 10 6 SNMP User The following entries are displayed on this screen gt User Config User Name Enter the User Name here User Type Select the type for the User e Local User Indicates that the user is connected to a local SNMP engine e Remote User Indicates that
101. ld on the same direction continuously for several times an alarm event will only be generated on the first time that is the Rising Alarm and Falling Alarm are triggered alternately for that the alarm following to Rising Alarm is certainly a Falling Alarm and vice versa Return to CONTENTS 116 Chapter 11 Maintenance Maintenance module assembling the commonly used system tools to manage the switch provides the convenient method to locate and solve the network problem 1 System Monitor Monitor the utilization status of the memory and the CPU of switch 2 Log View the configuration parameters of the switch and find out the errors via the Logs 3 Cable Test Test the connection status of the cable to locate and diagnose the trouble spot of the network 4 Loopback Test whether the ports of the switch and its peer device are available 5 Network Diagnose Test whether the destination device is reachable and detect the route hops from the switch to the destination device 11 1 System Monitor System Monitor functions to display the utilization status of the memory and the CPU of switch via the data graph The CPU utilization rate and the memory utilization rate should fluctuate stably around a specific value If the CPU utilization rate or the memory utilization rate increases markedly please detect whether the network is being attacked The System Monitor function is implemented on the CPU Monitor and Memory Monitor page
102. le is used to configure multicast function of the switch Here mainly introduces e IGMP Snooping Configure global parameters of IGMP Snooping function port properties VLAN and multicast VLAN e Multicast IP Configure multicast IP table e Multicast Filter Configure multicast filter feature to restrict users ordering multicast programs e Packet Statistics View the multicast data traffic on each port of the switch which facilitates you to monitor the IGMP messages in the network Chapter 9 QoS This module is used to configure QoS function to provide different quality of service for various network applications and requirements Here mainly introduces e DiffServ Configure priorities port priority 802 1P priority and DSCP priority e Bandwidth Control Configure rate limit feature to control the traffic rate on each port configure storm control feature to filter broadcast multicast and UL frame in the network Chapter Introduction Chapter 10 SNMP This module is used to configure SNMP function to provide a management frame to monitor and maintain the network devices Here mainly introduces SNMP Config Configure global settings of SNMP function Notification Configure notification function for the management station to monitor and process the events RMON Configure RMON function to monitor network more efficiently Chapter 11 Maintenance This module is used to assemble the com
103. lly select integral multiple of 64Kbps that closest to the rate you entered as the real Ingress Egress rate For example if you enter 1023Kbps for egress rate the system will automatically select 1024Kbps as the real Egress rate 3 When egress rate limit feature is enabled for one or more ports you are suggested to disable the flow control on each port to ensure the switch works normally 9 2 2 Storm Control Storm Control function allows the switch to filter broadcast multicast and UL frame in the network If the transmission rate of the three kind packets exceeds the set bandwidth the packets will be automatically discarded to avoid network broadcast storm Choose the menu QoS gt Bandwidth Control Storm Control to load the following page Storm Control Config Port Select Port Broadcast Rate bps Multicast Rate bps UL Frame Rate bps LAG O 128K_ M 128K M 128K O 1 e O 2 O 3 O 4 O 5 O 6 E E O i O 8 O 9 TE O 10 O 11 O 12 v Note For one port you cannot enable the Storm Control and the Ingress rate control atthe same time Figure 9 11 Storm Control The following entries are displayed on this screen 99 gt Storm Control Config Port Select Select Port Broadcast Rate bps Multicast Rate bps UL Frame Rate bps LAG Anzcte Click the Select button to quick select the
104. log on to the Web management page e P based Select this option to limit the IP range of the users for login e MAC based Select this option to limit the MAC Address of the users for login e Port based Select this option to limit the ports for login These fields can be available for configuration only when IP based mode is selected Only the users within the IP range you set here are allowed for login The field can be available for configuration only when MAC based mode is selected Only the user with this MAC Address you set here is allowed for login The field can be available for configuration only when Port based mode is selected Only the users connected to these ports you set here are allowed for login 21 gt Session Config Session Timeout Access User Number Number Control Admin Number Guest Number If you do nothing with the Web management page within the timeout time the system will log out automatically If you want to reconfigure please login again Select Enable Disable the Number Control function Enter the maximum number of the users logging on to the Web management page as Admin Enter the maximum number of the users logging on to the Web management page as Guest Return to CONTENTS 22 Chapter 5 Switching Switching module is used to configure the basic functions of the switch including four submenus Port LAG Traffic Monitor and MAC Address 5 1 Port The Port fun
105. me extensions for VLAN tagging IEEE 802 3x Defines Ethernet frame start stop requests and timers used for flow control on full duplex links Now incorporated in IEEE 802 3 2002 Internet Group Management Protocol IGMP A protocol through which hosts can register with their local router for multicast services If there is more than one multicast switch router on a given subnetwork one of the devices is made the querier and assumes responsibility for keeping track of group membership IGMP Snooping Listening to IGMP Query and IGMP Report packets transferred between IP Multicast Routers and IP Multicast host groups to identify IP Multicast group members IGMP Query On each subnetwork one IGMP capable device will act as the querier that is the device that asks all hosts to report on the IP multicast groups they wish to join or to which they already belong The elected querier will be the device with the lowest IP address in the subnetwork IP Multicast Filtering It is a feature to allow or deny the Client to add the specified multicast group Multicast Switching A process whereby the switch filters incoming multicast frames for services which no attached host has registered or forwards them to all ports contained within the designated multicast group 131 Layer 2 Data Link layer in the ISO 7 Layer Data Communications Protocol This is related directly to the hardware interface for network devices and passes on traffic base
106. monly used system tools to manage the switch Here mainly introduces System Monitor Monitor the memory and CPU of the switch Log View configuration parameters on the switch Device Diagnose gt Cable Test Test the connection status of the cable connected to the switch gt Loopback Test if the port of the switch and the connected device are available Network Diagnose Test if the destination is reachable and the account of router hops from the switch to the destination Appendix A Specifications Lists the hardware specifications of the Switch Appendix B Configure the PCs Introduces how to configure the PCs Appendix C Glossary Lists the glossary used in this manual Return to CONTENTS Chapter 2 Introduction Thanks for choosing the TL SL2428 24 Port 10 100Mbps 4 Port Gigabit Smart Switch 2 1 Overview of the Switch Designed for workgroups and departments TL SL2428 from TP LINK provides wire speed performance and full set of layer 2 management features It provides a variety of service features and multiple powerful functions with high security The ElA standardized framework and smart configuration capacity can provide flexible solutions for a variable scale of networks QoS and IGMP snooping filtering optimize voice and video application SNMP RMON WEB Log in bring abundant management policies TL SL2428 Switch integrates multiple functions with excellent performance and is friendly t
107. multicast Forward or Discard gt IGMP Snooping Status Description Displays IGMP Snooping status Member Displays the member of the corresponding status 8 1 2 Port Config On this page you can configure the IGMP feature for ports of the switch Choose the menu Multicast gt IGMP Snooping Port Config to load the following page 77 Port Config select Port O O 1 O 2 O 3 O 4 O 5 O 6 O 7 O 8 O g O 10 O 11 O 12 pot __ Sete IGMP Snooping Fast Leave LAG Disable Disable A Disable Disable Disable Disable pam Disable Disable Disable Disable Disable Disable B Disable Disable gt Disable Disable 2 Disable Disable Disable Disable Disable Disable Disable Disable lt Figure 8 5 Port Config The following entries are displayed on this screen gt Port Config Port Select Select Port IGMP Snooping Fast Leave LAG D Click the Select button to quick select the corresponding port based on the port number you entered Select the desired port for IGMP Snooping feature configuration lt is multi optional Displays the port of the Switch Select Enable Disable IGMP Snooping for the desired port Select Enable Disable Fast Leave feature for the desired port If Fast Leave is enabled for a port the Switch will immediately remove this port from the multicast group upon receiving IGMP leave messages Displays the LAG number which the port belongs to
108. nagement Station SNMP Agent and MIB Management Information Base SNMP Management Station SNMP Management Station is the workstation for running the SNMP client program providing a friendly management interface for the administrator to manage the most network devices conveniently SNMP Agent Agent is the server software operated on network devices with the responsibility of receiving and processing the request packets from SNMP Management Station In the meanwhile Agent will inform the SNMP Management Station of the events whenever the device status changes or the device encounters any abnormalities such as restarting the device MIB MIB is the set of the managed objects MIB defines a few attributes of the managed objects including the names the access rights and the data types Every SNMP Agent has its own MIB The SNMP Management station can read write the MIB objects basing on its management right SNMP Management Station is the manager of SNMP network while SNMP Agent is the managed object The information between SNMP Management Station and SNMP Agent are exchanged through SNMP Simple Network Management Protocol The relationship among SNMP Management Station SNMP Agent and MIB is illustrated in the following figure MIB Read Configure the MIB variables Send response and E notification packets SNMP Management Station SNMP Agent Figure 10 1 Relationship among SNMP Network Elements gt SNMP Versions T
109. namic Aging 1 15 Dynamic Aging 1 3 Dynamic Aging The maximum ofthe displayed entries is 100 by default please click the Search button to get the complete address entries Figure 5 11 Address Table The following entries are displayed on this screen gt Search Option MAC Address VLAN ID Port Type Address Table MAC Address VLAN ID Port Type Aging Status Enter the MAC address of your desired entry Enter the VLAN ID of your desired entry Select the corresponding port number of your desired entry Select the type of your desired entry All This option allows the address table to display all the address entries Static This option allows the address table to display the static address entries only Dynamic This option allows the address table to display the dynamic address entries only Filtering This option allows the address table to display the filtering address entries only Displays the MAC address learned by the switch Displays the corresponding VLAN ID of the MAC address Displays the corresponding Port number of the MAC address Displays the Type of the MAC address Displays the Aging status of the MAC address 37 5 4 2 Static Address The static address table maintains the static address entries which can be added or removed manually independent of the aging time In the stable networks the static MAC address entries can facilitate the switch to reduce broadcast packet
110. nsmitted in an Ethernet network the destination is not a receiver but a group with uncertain number of members so a multicast MAC address a logical MAC address is needed to be used as the destination address As stipulated by IANA the high order 24 bits of a multicast MAC address begins with 01 00 5E while the low order 23 bits of a multicast MAC address are the low order 23 bits of the multicast IP address The mapping relationship is described as Figure 8 2 IP Address 5bits The low order 23 bits of the multicast IP are mapped to the low order 23 bits of the multicast MAC address MAC Address 00000001 00000000 o101 1110 o ol z 00 gt SE Figure 8 2 Mapping relationship between multicast IP address and multicast MAC address The high order 4 bits of the IP multicast address are 1110 identifying the multicast group Only 23 bits of the remaining low order 28 bits are mapped to a multicast MAC address In that way 5 bits of the IP multicast address is not utilized As a result 32 IP multicast addresses are mapped to the same MAC address gt Multicast Address Table The switch is forwarding multicast packets based on the multicast address table As the transmission of multicast packets can not span the VLAN the first part of the multicast address table is VLAN ID based on which the received multicast packets are forwarded in the VLAN owning the receiving port The multicast address table is not mapped to an egress por
111. nstance 1 map VLAN 102 104 and 106 to Instance 2 e Configure Switch B Step Operation Description 1 Configure ports On VLAN 802 1Q VLAN page configure the link type of the related ports as Trunk and add the ports to VLAN 101 and VLAN 106 The detailed instructions can be found in the section 802 1Q VLAN 2 Enable STP function On Spanning Tree gt STP Config STP Config page enable STP function and select MSTP version On Spanning Tree gt STP Config Port Config page enable MSTP function for the port 3 Configure the region name and On Spanning Tree MSTP Instance Region Config the revision of MST region page configure the region as TP LINK and keep the default revision setting 4 Configure VLAN to Instance On Spanning Tree gt MSTP _Instance Instance mapping table of the MST region Config page configure WVLAN to Instance mapping table Map VLAN 101 103 and 105 to Instance 1 map VLAN 102 104 and 106 to Instance 2 5 Configure switch B as the root On Spanning Tree MSTP Instance gt Instance bridge of Instance 1 Config page configure the priority of Instance 1 to be 0 6 Configure switch B as the On Spanning Tree MSTP Instance gt Instance designated bridge of Instance 2 Config page configure the priority of Instance 2 to be 4096 70 e Configure Switch C Step Operation Description 1 Configure ports On VLAN gt 802 1Q VLAN page configu
112. ntain VLAN information e UNTAG Packets forwarded by the port Displays the LAG to which the port belongs Before creating the 802 1Q VLAN please acquaint yourself with all the devices connected to the switch in order to configure the ports properly Choose the menu VLAN gt 802 1Q VLAN gt Port Config to load the following page VLAN Port Config Select Port aon Om he QU OOOOOOOOOO000000 e Link Type PYID LAG WLAN ACCESS vw ACCESS 1 Detail 4 ACCESS 1 Detail ACCESS 1 Detail ACCESS 1 Detail E ACCESS 1 Detail ACCESS 1 Detail ACCESS 1 Detail E ACCESS 1 Detail ACCESS 1 Detail ACCESS 1 Detail ACCESS 1 Detail ACCESS 1 Detail ACCESS 1 Detail ACCESS 1 Detail lt Figure 6 5 802 1Q VLAN Port Config The following entries are displayed on this screen gt VLAN Port Config Port Select Select Port Click the Select button to quick select the corresponding entry based on the port number you entered Select the desired port for configuration It is multi optional Displays the port number 48 Link Type PVID LAG VLAN Select the Link Type from the pull down list for the port e ACCESS The ACCESS port can be added in a single VLAN and the egress rule of the port is UNTAG The PVID is same as the current VLAN ID If the current VLAN is deleted the PVID will be set to 1 by default e TRUNK The TRUNK port can be added
113. o manage which can fully meet the need of the users demanding higher networking performance 2 2 Main Features e Resiliency and Availability IEEE 802 1s Multiple Spanning Tree provides high link availability in multiple VLAN environments Multicast snooping automatically prevents flooding of IP multicast traffic Root Guard protects root bridge from malicious attack or configuration mistakes e Layer 2 Switching Supports 255 active VLAN groups and 4K VLAN IDs e Quality of Service Supports L2 L3 granular CoS with 4 priority queues per port Rate limiting confines the traffic flow accurately according to the preset value e Security Control the users logging on to the Web management page e Manageability Supports SNMP v1 v2c v3 RMON and web access Port Mirroring enables monitoring selected ingress egress traffic 2 3 Appearance Description 2 3 1 Front Panel TP LINK TL SL2428 2 4 6 s 1 12 u 18 18 2 2 2 Reset LI LIL LIL 1 3 5 7 g 1 15 7 19 a 2 Smart Switch Figure 2 1 Front Panel The following parts are located on the front panel of the Switch 5 gt Reset With the Switch powered on press Reset button for five seconds to reset the software setting to its factory default settings gt 10 100Mbps Ports Designed to connect to the device with a bandwidth of 10Mbps or 100Mbps Each has a corresponding 10 100M LED
114. ocated in the high bandwidth core region Wrong configuration or malicious attacks may result in configuration BPDU packets with higher priorities being received by the legal root bridge which causes the current legal root bridge to lose its position and network topology jitter to occur In this case flows that should travel along high speed links may lead to low speed links and network congestion may occur To avoid this MSTP provides root protect function Ports with this function enabled can only be set as designated ports in all spanning tree instances When a port of this type receives BDPU packets with higher priority it transits its state to blocking state and stops forwarding packets as if it is disconnected from the link The port resumes the normal state if it does not receive any configuration BPDU packets with higher priorities for a period of two times of forward delay gt TC Protect A switch removes MAC address entries upon receiving TC BPDU packets If a user maliciously sends a large amount of TC BPDU packets to a switch in a short period the switch will be busy with removing MAC address entries which may decrease the performance and stability of the network To prevent the switch from frequently removing MAC address entries you can enable the TC protect function on the switch With TC protect function enabled if the account number of the received TC BPDUs exceeds the maximum number you set in the TC threshold field the s
115. of VLAN e Detail Click to get the information of VLAN Click Edit button to modify the settings of the corresponding VLAN Click Create button to create a new VLAN 46 VLAN Info VLAN ID 1 2 4094 Name Default VLAN 16 characters maximum VLAN Members Port id Select Select Port Link Type Egress Rule LAG 1 ACCESS UNTAG amp 2 ACCESS UNTAG 3 ACCESS UNTAG 4 ACCESS UNTAG 5 ACCESS UNTAG 6 ACCESS UNTAG 7 ACCESS UNTAG J 8 ACCESS UNTAG g ACCESS UNTAG 10 ACCESS UNTAG 11 ACCESS UNTAG 12 ACCESS UNTAG 1a ACCESS UNTAG 14 ACCESS UNTAG lt note 1 Link Type can be changed in Page Port Config Figure 6 4 Create or Modify 802 1Q VLAN The following entries are displayed on this screen gt VLAN Config VLAN ID Enter the ID number of VLAN Description Give a description to the VLAN for identification gt VLAN Members Port Select Click the Select button to quick select the corresponding entry based on the port number you entered Select Select the desired port to be a member of VLAN or leave it blank It s multi optional Port Displays the port number Link Type Displays the Link Type of the port It can be reset on Port Config screen 47 6 1 2 Port Config Egress Rule LAG Select the Egress Rule for the VLAN port member The default egress rule is UNTAG e TAG All packets forwarded by the port are tagged The packets co
116. oose the menu System System Tools Firmware Upgrade to load the following page Firmware Upgrade You will get the new function after upgrading the firmware Firmware File Upgrade Firmware Version 1 0 0 Build 20120822 Rel 54711 Hel Hardware Version TL SL2428 1 0 Note 1 Please select the proper software version matching with your hardware to upgrade 2 To avoid damage please don t turn off the device while upgrading 3 After upgrading the device will reboot automatically 4 You are suggested to backup the configuration before upgrading Mdote 1 Don t interrupt the upgrade Figure 4 12 Firmware Upgrade 2 Please select the proper software version matching with your hardware to upgrade 3 To avoid damage please don t turn off the device while upgrading 19 4 After upgrading the device will reboot automatically 5 You are suggested to backup the configuration before upgrading 4 3 4 System Reboot On this page you can reboot the switch and return to the login page Please save the current configuration before rebooting to avoid losing the configuration unsaved Choose the menu System System Tools System Reboot to load the following page System Reboot Save Config Reboot Note To avoid damage please dontturn off the device while rebooting Anat To avoid damage please don t turn off the device while rebooting 4 3 5 System Reset On this page you can reset the s
117. ording to specified scheduling algorithms to implement QoS function Packets are mapped to different priority queues EE Packets sent via this interface i i Packets are forwarded Ga Ga Ga Ga a OOO Egress interface sssss a jaa Su pe aon Y cece Gia Packets are forwarded according to the Packets Scheduling schedule mode classification Figure 9 1 QoS function e Traffic classification Identifies packets conforming to certain characters according to certain rules e Map The user can map the ingress packets to different priority queues based on the priority modes This switch implements three priority modes based on port on 802 1P and on DSCP e Queue scheduling algorithm When the network is congested the problem that many packets compete for resources must be solved usually in the way of queue scheduling The switch supports four schedule modes SP WRR SP WRR and Equ gt Priority Mode This switch implements three priority modes based on port on 802 1P and on DSCP By default the priority mode based on port is enabled and the other two modes are optional 1 Port Priority Port priority is a priority level of the port After port priority is configured the data stream will be mapped to the egress queues directly according to the priority level of the port 90 2 802 1P Priority TAG 4 bytes at ie E thernet Frame 3bit for CoS 802 1p priority PRI CFI VLAN ID 802 1 Q p
118. ow Control are in a LAG their configurations should be the same e The ports which are enabled for the Port Security Port Mirror MAC Address Filtering and Static MAC Address Binding can not be added to the LAG Ifthe LAG is needed you are suggested to configure the LAG function here before configuring the other functions for the member ports Tips 1 Calculate the bandwidth for a LAG If a LAG consists of the four ports in the speed of 1000Mbps Full Duplex the whole bandwidth of the LAG is up to 8000Mbps 2000Mbps 4 because the bandwidth of each member port is 2000Mbps counting the up linked speed of 1000Mbps and the down linked speed of 1000Mbps 2 The traffic load of the LAG will be balanced among the ports according to the Aggregate Arithmetic If the connections of one or several ports are broken the traffic of these ports will be transmitted on the normal ports so as to guarantee the connection reliability The LAG function is implemented on the LAG Table and Static LAG configuration pages 5 2 1 LAG Table On this page you can view the information of the current LAG of the switch Choose the menu Switching gt LAG gt LAG Table to load the following page 30 Global Config Hash Algorithm LAG Table Group Number O LAG1 Select Note SRC MAC DST MAC w Apply Member Operation 14 15 16 17 Edit Detail 1 The LAG created by LACP cant be deleted Figure 5 6 LAG Table The followin
119. p and WRR group are scheduled strictly based on strict priority mode while the queues inside WRR group follow the WRR mode In SP WRR mode TC3 is in the SP group TCO TC1 and TC2 belong to the WRR group and the weight value ratio of TCO TC1 and TC2 is 1 2 4 In this way when scheduling queues the switch allows TC3 to occupy the whole bandwidth following the SP mode and the TCO TC1 and TC2 in the WRR group will take up the bandwidth according to their ratio 1 2 4 Equal Mode In this mode all the queues occupy the bandwidth equally The weight value ratio of all the queues is 1 1 1 1 9 2 Bandwidth Control Bandwidth function allowing you to control the traffic rate and broadcast flow on each port to ensure network in working order can be implemented on Rate Limit and Storm Control pages 97 9 2 1 Rate Limit Rate limit functions to control the ingress egress traffic rate on each port via configuring the available bandwidth of each port In this way the network bandwidth can be reasonably distributed and utilized Choose the menu QoS gt Bandwidth Control gt Rate Limit to load the following page Rate Limit Config Port Select Select Port Ingress Rate Kbps Egress Rate Kbps LAG O 128 v 1024 v O 1 a O 2 O 3 l O 4 1 O 5 O 6 A O 7 O 8 O 9 O 10 O 11 O 12 v Note 1 For one port you cannot ena
120. ption Member Port Fj O 2 O 3 DO 4 Os Oe Fl 7 O e Og O10 O11 O12 013 C14 O15 C16 O17 C18 O19 O20 Dar O22 123 O24 O25 O26 O 27 O 28 Apply Note 1 LAG denotes the Link Aggregation Group which the port belongs to 2 It s not suggested to set 100M and 1000M ports in the same LAG Figure 5 8 Static LAG The following entries are displayed on this screen gt LAG Config Group Number Select a Group Number for the LAG Description Displays the description of LAG 32 gt Member Port Member Port Select the port as the LAG member Clearing all the ports of the LAG will delete this LAG Tips The LAG can be deleted by clearing its all member ports 5 3 Traffic Monitor The Traffic Monitor function monitoring the traffic of each port is implemented on the Traffic Summary and Traffic Statistics pages 5 3 1 Traffic Summary Traffic Summary screen displays the traffic information of each port which facilitates you to monitor the traffic and analyze the network abnormity Choose the menu Switching Traffic Monitor Traffic Summary to load the following page Auto Refresh Auto Refresh O Enable Disable Refresh Rate sec 3 300 Traffic Summary Port Packets Rx Packets Tx Octets Rx Octets Tx Statistics 1 0 0 0 0 Statistics N 2 0 0 0 0 Statistics 3 11129 13484 1669873 4743404 Statistics 4 0 0 0 0 Statistics 5 0 0 0 0 Statistics 6 0 0 0 0 Statistics J 7 0 0 0 0 Statistics 8 0 0 0 0 Statistics 9 0
121. r press the Enter key User Name admin Password Copyright 2012 TP LINK Technologies Co Ltd All rights reserved Figure 3 2 Login 3 2 Configuration After a successful login the main page will appear as Figure 3 3 and you can configure the function by clicking the setup menu on the left side of the screen TP LINK TL SL2428 System Summary Device Description System Time Daylight Saving Time System IP CEI G SHOU ES A ie 18 20 22 24 26 28 28F System aaa al uu A P System Info a a el el a A ag a al pm User Manage 1 IN 9 4 13 15 F Aa 2 23 25 2T 27F System Tools Access Security System Info Switching System Description 24FE 4GE Smart Switch VLAN Device Name TL SL2428 Spanning Tree Device Location SHENZHEN Multicast System Contact www tp link com Qos Hardware Version TL SL2428 1 0 SNMP Firmware Version 1 0 0 Build 20120822 Rel 54711 Maintenance IP Address 192 168 0 1 Subnet Mask 255 255 255 0 Default Gateway Logout MAC Address 64 70 02 81 54 87 System Time 2006 01 01 08 25 29 Run Time 0 day 0 hour 25 min 29 sec Copyright 2012 TP LINK Technologies Co Ltd All rights reserved Figure 3 3 Main Setup Menu Ate Clicking Apply can only make the new configurations effective before the switch is rebooted If you want to keep the configurations effective even the switch is rebooted pl
122. re the IP for the log host UDP Port Displays the UDP port used for receiving sending log information Here we use the standard port 514 Severity Specify the severity level of the log information sent to each log host Only the log with the same or smaller severity level value will be sent to the corresponding log host Status Enable Disable the log host Anos The Log Server software is not provided If necessary please download it on the Internet 11 2 4 Backup Log Backup Log feature enables the system logs saved in the switch to be output as a file for device diagnosis and statistics analysis When a critical error results in the breakdown of the system you can export the logs to get some related important information about the error for device diagnosis after the switch is restarted Choose the menu Maintenance gt Log gt Backup Log to load the following page Backup Log Click the button here to backup the log file Backup Log Note It will take a few minutes to backup the log file Please wait without any operation Figure 11 6 Backup Log 121 The following entry is displayed on this screen gt Backup Log Backup Log Click the Backup Log button to save the log as a file to your computer Anote It will take a few minutes to backup the log file Please wait without any operation 11 3 Device Diagnose This switch provides Cable Test and Loopback functions for device diagnose 11 3 1 Cable Test Cable
123. re the link type of the related ports as Trunk and add the ports to VLAN 101 and VLAN 106 The detailed instructions can be found in the section 802 10 VLAN 2 Enable STP function On Spanning Tree gt STP Config STP Config page enable STP function and select MSTP version On Spanning Tree gt STP Config Port Config page enable MSTP function for the port 3 Configure the region name and On Spanning Tree MSTP Instance gt Region Config the revision of MST region page configure the region as TP LINK and keep the default revision setting 4 Configure VLAN to Instance On Spanning Tree gt MSTP Instance gt Instance mapping table of the MST region Config page configure VLAN to Instance mapping table Map VLAN 101 103 and 105 to Instance 1 map VLAN 102 104 and 106 to Instance 2 5 Configure switch C as the root On Spanning Tree gt MSTP Instance gt Instance bridge of Instance 1 Config page configure the priority of Instance 1 to be 4096 6 Configure switch C as the root On Spanning Tree gt MSTP Instance gt Instance bridge of Instance 2 Config page configure the priority of Instance 2 to be 0 e Configure Switch D Step Operation Description 1 Configure ports On VLAN 802 1Q VLAN page configure the link type of the related ports as Trunk and add the ports to VLAN 101 and VLAN 106 The detailed instructions can be found in the section 802 1Q VLAN 2 Enable STP function On Spanning Tree gt
124. rward packets to the ports that are not on its forward portlist Choose the menu Switching Port Port Isolation to load the following page Port Isolation Config Port E v Forward Portlist O 1 Fl 2 O 3 O a Os O 6 O 7 O e O g C10 Cla C112 C13 C14 O15 C16 O17 Cis Cig C20 Cat C122 C23 C124 O25 C26 O27 O28 Al Port Isolation List Port Forward Portlist 1 1 28 amp 2 1 28 3 1 28 4 1 28 5 1 28 6 1 28 7 1 28 8 1 28 E g 1 28 10 1 28 11 1 28 12 1 28 13 1 28 14 1 28 15 1 28 v Figure 5 5 Port Isolation Config The following entries are displayed on this screen gt Port Isolation Config Port Select the port number to set its forwardlist Forward Portlist Select the port that to be forwarded to gt Port Isolation List 29 Port Display the port number Forward Portlist Display the forwardlist 5 2 LAG LAG Link Aggregation Group is to combine a number of ports together to make a single high bandwidth data path so as to implement the traffic load sharing among the member ports in the group and to enhance the connection reliability For the member ports in an aggregation group their basic configuration must be the same The basic configuration includes STP QoS VLAN port attributes MAC Address Learning mode and other associated settings The further explains are following e lf the ports which are enabled for the STP QoS Port Isolation and Port Configuration Speed and Duplex Fl
125. ry to delete the dynamic address or to bind the MAC address to the corresponding port statically It is multi optional MAC Address Displays the dynamic MAC Address VLAN ID Displays the corresponding VLAN ID of the MAC address Port Displays the corresponding port number of the MAC address Type Displays the Type of the MAC address 40 Aging Status Displays the Aging Status of the MAC address Bind Click the Bind button to bind the MAC address of your selected entry to the corresponding port statically Tips Setting aging time properly helps implement effective MAC address aging The aging time that is too long or too short results decreases the performance of the switch If the aging time is too long excessive invalid MAC address entries maintained by the switch may fill up the MAC address table This prevents the MAC address table from updating with network changes in time If the aging time is too short the switch may remove valid MAC address entries This decreases the forwarding performance of the switch It is recommended to keep the default value 5 4 4 Filtering Address The filtering address is to forbid the undesired packets to be forwarded The filtering address can be added or removed manually independent of the aging time The filtering MAC address allows the switch to filter the packets which includes this MAC address as the source address or destination address so as to guarantee the network security The filterin
126. s 11 1 1 CPU Monitor Choose the menu Maintenance gt System Monitor CPU Monitor to load the following page CPU Monitor Run Time Osec 100 90 80 70 60 50 40 30 20 10 0 Current Utilization MAX Utilization MIN Utilization Average Utilization 0 0 0 0 Figure 11 1 CPU Monitor 117 Click the Monitor button to enable the switch to monitor and display its CPU utilization rate every four seconds 11 1 2 Memory Monitor Choose the menu Maintenance System Monitor Memory Monitor to load the following page Memory Monitor Run Time 8sec 100 90 80 70 60 50 40 30 20 10 0 Current Utilization MAX Utilization 50 MIN Utilization Average Utilization 50 50 montor stop Figure 11 2 Memory Monitor Click the Monitor button to enable the switch to monitor and display its Memory utilization rate every four seconds 11 2 Log The Log system of switch can record classify and manage the system information effectively providing powerful support for network administrator to monitor network operation and diagnose malfunction The Logs of switch are classified into the following eight levels Severity Level Description emergencies 0 The system is unusable alerts 1 Action must be taken immediately critical 2 Critical conditions errors 3 Error conditions warnings 4 Warnings conditions 118 notifications 5 Normal but signi
127. s and remarkably enhance the efficiency of packets forwarding without learning the address The static MAC address learned by the port with Port Security enabled in the static learning mode will be displayed in the Static Address Table Choose the menu Switchi Create Static Address MAC Address WLAN ID Port Search Option Search Option Static Address Table ng MAC Address gt Static Address to load the following page Format 00 00 00 00 00 01 1 4094 Poti v Al A Select MAC Address YLAN ID Port Type Aging Status O Total MAC Address 0 Note The maximurn ofthe displa complete address entries Poti vw ved entries is 100 by default please click the Search button to get the Figure 5 12 Static Address The following entries are displayed on this screen gt Create Static Address MAC Address VLAN ID Port gt Search Option Search Option gt Static Address Table Select Enter the static MAC Address to be bound Enter the corresponding VLAN ID of the MAC address Select a port from the pull down list to be bound Select a Search Option from the pull down list and click the Search button to find your desired entry in the Static Address Table e MAC Enter the MAC address of your desired entry e VLAN ID Enter the VLAN ID number of your desired entry e Port Enter the Port number of your desired entry Select the entry to delete or
128. s are displayed on this screen gt Global Config STP Version Parameters Config CIST Priority Hello Time Max Age Forward Delay TxHoldCount Select Enable Disable STP function globally on the switch Select the desired STP version on the switch e STP Spanning Tree Protocol e RSTP Rapid Spanning Tree Protocol e MSTP Multiple Spanning Tree Protocol Enter a value from 0 to 61440 to specify the priority of the switch for comparison in the CIST CIST priority is an important criterion on determining the root bridge In the same condition the switch with the highest priority will be chosen as the root bridge The lower value has the higher priority The default value is 32768 and should be exact divisor of 4096 Enter a value from 1 to 10 in seconds to specify the interval to send BPDU packets It is used to test the links 2 Hello Time 1 lt Max Age The default value is 2 seconds Enter a value from 6 to 40 in seconds to specify the maximum time the switch can wait without receiving a BPDU before attempting to reconfigure The default value is 20 seconds Enter a value from 4 to 30 in seconds to specify the time for the port to transit its state after the network topology is changed 2 Forward Delay 1 2 Max Age The default value is 15 seconds Enter a value from 1 to 20 to set the maximum number of BPDU packets transmitted per Hello Time interval The default value is 5pps 58 Max Hops
129. sses learned from individual port can be setto 64 Figure 5 4 Port Security The following entries are displayed on this screen gt Port Security Select Port Max Learned MAC Learned Num Learn Mode Status Select the desired port for Port Security configuration It is multi optional Displays the port number Specify the maximum number of MAC addresses that can be learned on the port Displays the number of MAC addresses that have been learned on the port Select the Learn Mode for the port Dynamic When Dynamic mode is selected the learned MAC address will be deleted automatically after the aging time Static When Static mode is selected the learned MAC address will be out of the influence of the aging time and can only be deleted manually The learned entries will be cleared after the switch is rebooted Permanent When Permanent mode is selected the learned MAC address will be out of the influence of the aging time and can only be deleted manually The learned entries will be saved even the switch is rebooted Select Enable Disable the Port Security feature for the port 28 Anote The Port Security function is disabled for the LAG port member Only the port is removed from the LAG will the Port Security function be available for the port 5 1 4 Port Isolation Port Isolation provides a method of restricting traffic flow to improve the network security by forbidding the port to fo
130. stem Time The following entries are displayed on this screen DST Status Enable or Disable the DST Predefined Mode Select a predefined DST configuration e USA First Sunday in April 02 00 Last Sunday in October 02 00 e Australia First Sunday in October 02 00 First Sunday in April 03 00 e European Last Sunday in March 01 00 Last Sunday in October 01 00 e New Zealand First Sunday in October 02 00 Last Sunday in March 03 00 Recurring Mode Specify the DST configuration in recurring mode This configuration is recurring in use e Offset Specify the time adding in minutes when Daylight Saving Time comes e Start End Time Select starting time and ending time of Daylight Saving Time Date Mode Specify the DST configuration in Date mode This configuration is one off in use e Offset Specify the time adding in minutes when Daylight Saving Time comes e Start End Time Select starting time and ending time of Daylight Saving Time 14 4 1 5 System IP Each device in the network possesses a unique IP Address You can log on to the Web management page to operate the switch using this IP Address The switch supports three modes to obtain an IP address Static IP DHCP and BOOTP The IP address obtained using a new mode will replace the original IP address On this page you can configure the system IP of the switch Choose the menu System System Info System IP to load the following page IP Config MA
131. t MSTP function e Ais the central switch e Band C are switches in the convergence layer D E and F are switches in the access layer e There are 6 VLANs labeled as VLAN101 VLAN106 in the network e All switches run MSTP and belong to the same MST region e The data in VLANO1 103 and 105 are transmitted in the STP with B as the root bridge The data in VLANO2 104 and 106 are transmitted in the STP with C as the root bridge e Switch A mil Switch B Switch C gt Network Diagram Switch D Switch E Switch F 69 gt Configuration Procedure e Configure Switch A Step Operation Description 1 Configure ports On VLAN gt 802 1Q VLAN page configure the link type of the related ports as Trunk and add the ports to VLAN 101 and VLAN 106 The detailed instructions can be found in the section 802 1Q VLAN 2 Enable STP function On Spanning Tree gt STP Config STP Config page enable STP function and select MSTP version On Spanning Tree gt STP Config Port Config page enable MSTP function for the port 3 Configure the region name and On Spanning Tree MSTP Instance gt Region Config the revision of MST region page configure the region as TP LINK and keep the default revision setting 4 Configure VLAN to Instance On Spanning Tree gt MSTP Instance gt Instance mapping table of the MST region Config page configure VLAN to Instance mapping table Map VLAN 101 103 and 105 to I
132. t but a group port list When forwarding a multicast packet the switch looks up the multicast address table based on the destination multicast address of the multicast packet If the corresponding entry can not be found in the table the switch will broadcast the packet in the VLAN owning the receiving port If the corresponding entry can be found in the table it indicates that the destination address should be a group port list so the switch will duplicate this multicast data and deliver each port one copy The general format of the multicast address table is described as Figure 8 3 below 74 VLAN ID Multicast IP Port Figure 8 3 Multicast Address Table gt IGMP Snooping In the network the hosts apply to the near Router for joining leaving a multicast group by sending IGMP Internet Group Management Protocol messages When the up stream device forwards down the multicast data the switch is responsible for sending them to the hosts IGMP Snooping is a multicast control mechanism which can be used on the switch for dynamic registration of the multicast group The switch running IGMP Snooping manages and controls the multicast group via listening to and processing the IGMP messages transmitted between the hosts and the multicast router thereby effectively prevent multicast groups being broadcasted in the network The Multicast module is mainly for multicast management configuration of the switch including four submenus IGMP Snooping Mul
133. t interval and it will terminate resending the inform request if the resending times reach the specified Retry times The Inform type has a higher security than the Trap type which is employed on SNMPv3 On this page you can configure the notification function of SNMP Choose the menu SNMP Notification Notification to load the following page 110 Create Notification IP Address UDP Part 162 User Security Model vt i 3 Security Level Type Trap Retry x 61 255 Timeout sec 1 3600 Notification Table Select IP Address UDP Port User rindo Security Level Type Timeout Retry Operation Al Figure 10 8 Notification Config The following entries are displayed on this screen gt Create Notification IP Address UDP Port User Security Model Security Level Type Retry Timeout Enter the IP Address of the management Host Enter the number of the UDP port used to send notifications The UDP port functions with the IP address for the notification sending The default is 162 Enter the User name of the management station Select the Security Model of the management station Select the Security Level for the SNMP v3 User e noAuthNoPriv No authentication and no privacy security level are used e authNoPriv Only the authentication security level is used e authPriv Both the authentication and the privacy security levels are used
134. ta A IDA A eet ete A des ee ES 2 1 3 Overview of This Guide ooooocococccccccconcoconcccnococinnnnnonononononnnncnnnnnnnnnnnnnennnnnnnnnnnnnncennaninnnnss 2 Chapter 2 Introduction renina aaneren lit irreal 5 ZT Overview ofthe Mii A EA ates 5 2 2 MainsF atures isis eet cass ee ee hese eis ed oi A ci 5 2 3 Appearance DeSCription yeiai aa aa e a a aa eda 5 2 3 1 Front Panel desa A A A Was Avnet 5 2 3 2 Rear e ESSEN E E S E es el S ES S EE cade ba tateceumcar re Dtaes 7 Chapter 3 Login to the SwitCh ooooconcinonocicccnncicnnnnnoncncccnnnnnonnnnnnnnnnnnnonnnnnnnnnnnnnnnnncnninannnnnnnnnananenens 8 3 1 LOMA AE a 8 32 S COnfiguratione o ia 8 Chapter Syste M sieca ea ie ea rt he Bee Peas Ane eee ee eee Moe aaases 10 4 1 System O O 10 4 1 1 S stem SUMMA Visa cda 10 4 1 2 Device Description A Ghee iN AAA 12 4 1 3 System TIME oie aa eee aiaee Eaa EEA EA needy Seen aeaeed Ad PESEE AEA 13 4 1 4 Daylight Saving Time renses eiere e E e E a A eA 13 SS lP reirei aa er aaa aaea araa a O EAEn 15 4 2 User Manage sennsessnenrserrrerrrerrstrrsrrrstrrstrrstrrstrrstrrserrterretiretirettterrrerrrerrrerrrerrrene 16 4 2 1 USer Table 00 E A A A 16 4 2 2 USE CON ista piden 16 4 3 System TOO Siri ia 18 4 3 1 Config Restore curia iia ie SAPE EDES 18 4 3 2 Contig Backup ria A e aa 18 4 3 3 Firmware Upgrade iii AA aa eds 19 ALA System REODOO dia N A eae aed 20 4 3 5 System Reset viii ricardo 20 44 gt ACCES Ub 20 C
135. tch 1 iy Switch 2 FF S V PC PC Receiver 1 Receiver 2 Figure 8 1 Information transmission in the multicast mode Features of multicast 1 The number of receivers is not certain Usually point to multipoint transmission is needed 2 Multiple users receiving the same information form a multicast group The multicast information sender just need sends the information to the network device once 3 Each user can join and leave the multicast group at any time 4 Real time is highly demanded and certain packets drop is allowed 73 gt Multicast Address 1 Multicast IP Address As specified by IANA Internet Assigned Numbers Authority Class D IP addresses are used as destination addresses of multicast packets The multicast IP addresses range from 224 0 0 0 239 255 255 255 The following table displays the range and description of several special multicast IP addresses Multicast IP address range Description 224 0 0 0 224 0 0 255 Reserved multicast addresses for routing protocols and other network protocols 224 0 1 0 224 0 1 255 Addresses for video conferencing 239 0 0 0 239 255 255 255 Local management multicast addresses which are used in the local network only Table 8 1 Range of the special multicast IP 2 Multicast MAC Address When a unicast packet is transmitted in an Ethernet network the destination MAC address is the MAC address of the receiver When a multicast packet is tra
136. tee a more reliable communication between SNMP Management station and SNMP Agent gt MIB Introduction To uniquely identify the management objects of the device in SNMP messages SNMP adopts the hierarchical architecture to identify the managed objects It is like a tree and each tree node represents a managed object as shown in the following figure Thus the object can be identified with the unique path starting from the root and indicated by a string of numbers The number string is the Object Identifier of the managed object In the following figure the OID of the managed object B is 1 2 1 1 While the OID of the managed object A is 1 2 1 1 5 Figure 10 2 Architecture of the MIB tree gt SNMP Configuration Outline 1 Create View The SNMP View is created for the SNMP Management Station to manage MIB objects The managed object uniquely identified by OID can be set to under or out of the management of SNMP Management Station by configuring its view type included excluded The OID of managed object can be found on the SNMP client program running on the SNMP Management Station 2 Create SNMP Group After creating the SNMP View it s required to create a SNMP Group The Group Name Security Model and Security Level compose the identifier of the SNMP Group The Groups with these three items the same are considered to be the same You can configure SNMP Group to control the network access by providing the users in various groups wi
137. tes the occupied proportion of the resource WRR queue overcomes the disadvantage of SP queue that the packets in the queues with lower priority can not get service for a long time In WRR mode though the queues are scheduled in order the service time for each queue is not fixed that is to say if a queue is empty the next queue will be scheduled In this way the bandwidth resources are made full use of The default weight value ratio of TCO TC1 TC2 and TC3 is 1 2 4 8 Packets are mapped to different priority queues HE Gila ey Packets in TCO TC3 are rl forwarded following the Packets sent via this interface cae ratio 1 2 4 8 GS Ta Guida ko i Egress interface ssl Ja s SUS a WK a E Ga TCO Packets eee classification Weight value TC0 TC1 TC2 TC3 1 2 4 8 Figure 9 5 WRR Mode SP WRR Mode Strict Priority Weight Round Robin Mode In this mode this switch provides two scheduling groups SP group and WRR group Queues in SP group and WRR group are scheduled strictly based on strict priority mode while the queues inside WRR group follow the WRR mode In SP WRR mode TC3 is in the SP group TCO TC1 and TC2 belong to the WRR group and the weight value ratio of TCO TC1 and TC2 is 1 2 4 In this way when scheduling queues the switch allows TC3 to occupy the whole bandwidth following the SP mode and the TCO TC1 and TC2 in the WRR group will take up the bandwidth according to their ratio 1 2 4 Equ Mode Equal Mode
138. th different management rights via the Read View Write View and Notify View 102 3 Create SNMP User The User is configured in a SNMP Group can manage the switch via the client program on management station The specified User Name and the Auth Privacy Password are used for SNMP Management Station to access the SNMP Agent functioning as the password SNMP module is used to configure the SNMP function of the switch including three submenus SNMP Config Notification and RMON 10 1 SNMP Config The SNMP Config can be implemented on the Global Config SNMP View SNMP Group SNMP User and SNMP Community pages 10 1 1 Global Config To enable SNMP function please configure the SNMP function globally on this page Choose the menu SNMP gt SNMP Config Global Config to load the following page Global Config SNMP Enable Disable Apply Local Engine Default ID Local Engine ID 80002e5703647002815487 10 64 Hex Apply Remote Engine eee Apply Remote Engine ID 0 or 10 64 Hex Help Note The total hexadecimal characters of Engine ID should be even Figure 10 3 Global Config The following entries are displayed on this screen gt Global Config SNMP Enable Disable the SNMP function gt Local Engine Local Engine ID Specify the Switch s Engine ID for the remote clients The Engine ID is a unique alphanumeric string used to identify the SNMP engine on the Switch 103 gt Remote Engine
139. the correct time after you configure on the System gt System Info gt System Time Web management page Module Displays the module which the log information belongs to You can select a module from the drop down list to display the corresponding log information Severity Displays the severity level of the log information You can select a severity level to display the log information whose severity level value is the same or smaller Content Displays the content of the log information 119 Adote 1 The logs are classified into eight levels based on severity The higher the information severity is the lower the corresponding level is 2 This page displays logs in the log buffer and at most 512 logs are displayed 11 2 2 Local Log Local Log is the log information saved in switch By default all system logs are saved in log buffer and the logs with severities from level_0 to level_4 are saved in log file meanwhile On this page you can set the output channel for logs Choose the menu Maintenance Log Local Log to load the following page Local Log Config Select Channel Severity Status a v v F Log Buffer level_7 Enable O Log File level_4 Enable Note 1 Local log includes 2 channels log buffer and log file 2 There are 8 severity levels marked with values 0 7 The smaller value has the higher priority Figure 11 4 Local Log The following entries are displayed on this screen gt Local Log Config Select Sel
140. the DSCP priority to the Required Select DSCP priority and the corresponding priority level Select a schedule mode Required Log on to the Schedule Mode page to select a schedule mode 9 1 4 Schedule Mode On this page you can select a schedule mode for the switch When the network is congested the problem that many packets compete for resources must be solved usually in the way of queue scheduling The switch will control the forwarding sequence of the packets according to the priority queues and scheduling algorithms you set On this switch the priority levels are labeled as TCO TC1 TC3 Choose the menu QoS DiffServ Schedule Mode to load the following page Schedule Mode Config Schedule Mode Equ Mode v Figure 9 9 Schedule Mode The following entries are displayed on this screen gt Schedule Mode Config SP Mode WRR Mode SP WRR Mode Equ Mode Strict Priority Mode In this mode the queue with higher priority will occupy the whole bandwidth Packets in the queue with lower priority are sent only when the queue with higher priority is empty Weight Round Robin Mode In this mode packets in all the queues are sent in order based on the weight value for each queue The weight value ratio of TCO TC1 TC2 and TC3 is 1 2 4 8 Strict Priority Weight Round Robin Mode In this mode this switch provides two scheduling groups SP group and WRR group Queues in SP grou
141. the Network Connections tab in the appearing window 3 Right click the icon that showed below select Properties on the prompt page LAN or High Speed Internet ocal Area Connection Connected Cal Realtek RTL813 Disable Status Repair Bridge Connections Create Shortcut Rename Figure B 1 4 In the prompt page that showed below double click on the Internet Protocol TCP IP 127 4 Local Area Connection Properties General Advanced Connect using E9 Realtek ATL8139 810 Family Fast E This connection uses the following items GF AEGIS Protocol IEEE 802 18 v3 7 5 0 3 DDK PACKET Protocol Internet Protocol TCP IP a lt Description Transmission Control Protocol lnternet Protocol The default wide area network protocol that provides communication across diverse interconnected networks Show icon in notification area when connected Notify me when this connection has limited or no connectivity Figure B 2 5 The following TCP IP Properties window will display and the IP Address tab is open on this window by default 128 Internet Protocol TCP IP Properties General You can get IP settings assigned automatically if your network supports this capability Otherwise you need to ask your network administrator for the appropriate IP settings Obtain an IP address automatically Use the following IP address IP address 192 168
142. the group In this model the Community Name is used for authentication SNMP v2c can be configured on the SNMP Community page directly e v3 SNMPv3 is defined for the group In this model the USM mechanism is used for authentication If SNMPv3 is enabled the Security Level field is enabled for configuration 105 Security Level Read View Write View Notify View Group Table Select Group Name Security Model Security Level Read View Write View Notify View Operation Select the Security Level for the SNMP v3 Group e noAuthNoPriv No authentication and no privacy security levels are used e authNoPriv Only the authentication security level is used e authPriv Both the authentication and the privacy security levels are used Select the View to be the Read View The management access is restricted to read only and changes cannot be made to the assigned SNMP View Select the View to be the Write View The management access is writing only and changes can be made to the assigned SNMP View The View defined both as the Read View and the Write View can be read and modified Select the View to be the Notify View The management station can receive notification messages of the assigned SNMP view generated by the Switch s SNMP agent Select the desired entry to delete the corresponding group It s multi optional Displays the Group Name here Displays the Security Model of the group Disp
143. the network is congested the problem that many packets compete for resources must be solved usually in the way of queue scheduling The switch implements four scheduling queues TCO TC1 TC2 and TC3 TCO has the lowest priority while TC3 has the highest priority The switch provides four schedule modes SP WRR SP WRR and Equ 1 SP Mode Strict Priority Mode In this mode the queue with higher priority will occupy the whole bandwidth Packets in the queue with lower priority are sent only when the queue with higher priority is empty The switch has four egress queues labeled as TCO TC1 TC2 and TC3 In SP mode their priorities increase in order TC3 has the highest priority The disadvantage of SP queue is that if there are packets in the queues with higher priority for a long time in congestion the packets in the queues with lower priority will be starved to death because they are not served 91 Packets are mapped to different priority queues Ps Ga 13 No it A Packets in TC3 are i H preferentially Packets sent via this interface forwarded gt gt nn E Gs a Gs N aa h Egress interface eS S NE J eaeaa ee Gist TO Packets Y classification SP Mode Figure 9 4 SP Mode WRR Mode Weight Round Robin Mode In this mode packets in all the queues are sent in order based on the weight value for each queue and every queue can be assured of a certain service time The weight value indica
144. thentication protocol that uses software running on a central server to control access to RADIUS compliant devices on the network Remote Monitoring RMON RMON provides comprehensive network monitoring capabilities It eliminates the polling required in standard SNMP and can set alarms on a variety of traffic conditions including specific error types Rapid Spanning Tree Protocol RSTP RSTP reduces the convergence time for network topology changes to about 10 of that required by the older IEEE 802 1D STP standard 132 Secure Shell SSH A secure replacement for remote access functions including Telnet SSH can authenticate users with a cryptographic key and encrypt data connections between management clients and the switch Simple Network Management Protocol SNMP The application protocol in the Internet suite of protocols which offers network management services Simple Network Time Protocol SNTP SNTP allows a device to set its internal clock based on periodic updates from a Network Time Protocol NTP server Updates can be requested from a specific NTP server or can be received via broadcasts sent by NTP servers Spamning Tree Algorithm STA A technology that checks your network for any loops A loop can often occur in complicated or backup linked network systems Spanning Tree detects and directs data along the shortest available path maximizing the performance and efficiency of the network Telnet Defines a remot
145. ticast IP Multicast Filter and Packet Statistics 8 1 IGMP Snooping gt IGMP Snooping Process The switch running IGMP Snooping listens to the IGMP messages transmitted between the host and the router and tracks the IGMP messages and the registered port When receiving IGMP report message the switch adds the port to the multicast address table when the switch listens to IGMP leave message from the host the router sends the Group Specific Query message of the port to check if other hosts need this multicast if yes the router will receive IGMP report message if no the router will receive no response from the hosts and the switch will remove the port from the multicast address table The router regularly sends IGMP query messages After receiving the IGMP query messages the switch will remove the port from the multicast address table if the switch receives no IGMP report message from the host within a period of time gt IGMP Messages The switch running IGMP Snooping processes the IGMP messages of different types as follows 1 IGMP Query Message IGMP query message sent by the router falls into two types IGMP general query message and IGMP group specific query message The router regularly sends IGMP general message to query if the multicast groups contain any member When receiving IGMP leave message the receiving port of the router will send IGMP group specific query message to the multicast group and the switch will forward IGMP
146. ticast packets whose multicast IP is in the IP range will be processed Deny Only the multicast packets whose multicast IP is not in the IP range will be processed Enter the IP rang ID the port will be bound to Specify the maximum number of multicast groups to prevent some ports taking up too much bandwidth 87 LAG Displays the LAG number which the port belongs to note 1 Multicast Filter feature can only have effect on the VLAN with IGMP Snooping enabled 2 Multicast Filter feature has no effect on static multicast IP 3 Up to 15 IP Ranges can be bound to one port Configuration Procedure Step Operation Description 1 Configure IP Range Required Configure IP Range to be filtered on Multicast Multicast Filter IP Range page 2 Configure multicast filter Optional Configure multicast filter rules for ports on rules for ports Multicast Multicast Filter Port Filter page 8 4 Packet Statistics On this page you can view the multicast data traffic on each port of the switch which facilitates you to monitor the IGMP messages in the network Choose the menu Multicast Packet Statistics to load the following page Auto Refresh Auto Refresh Enable Disable Apply Refresh Period sec 3 300 IGMP Statistics Port Select Pot Query Packet aur ERA asa Leave Packet Error Packet 1 0 0 0 0 0 0 A 2 0 0 0 0 0 0 3 0 0 0 0 0 0 4 0 0 0 0 0 0 5 0 0 0 0 0 0 6 0 0 0 0
147. tion Displays the index number of the entry Select the alarm variables form the pull sown list Select the port on which the Alarm entry acts Specify the sampling method for the selected variable and comparing the value against the thresholds e Absolute Compares the values directly with the thresholds at the end of the sampling interval e Delta Subtracts the last sampled value from the current value The difference in the values is compared to the threshold Enter the rising counter value that triggers the Rising Threshold alarm Select the index of the corresponding event which will be triggered if the sampled value is larger than the Rising Threshold Enter the falling counter value that triggers the Falling Threshold alarm Select the index of the corresponding event which will be triggered if the sampled value is lower than the Falling Threshold Specify the type of the alarm e All The alarm event will be triggered either the sampled value exceeds the Rise Hold or is under the Fall Hold e Rising When the sampled value exceeds the Rising Threshold an alarm event is triggered e Falling When the sampled value is under the Falling Threshold an alarm event is triggered 115 Interval Enter the alarm interval time in seconds Owner Enter the name of the device or user that defined the entry Status Select Enable Disable the corresponding alarm entry Anzte When alarm variables exceed the Thresho
148. tries are displayed on this screen gt Mirror Group Number Select the mirror group number you want to configure gt Mirroring Port Mirroring Port Select the mirroring port number gt Mirrored Port Port Select Click the Select button to quick select the corresponding port based on the port number you entered Select Select the desired port as a mirrored port It is multi optional Port Displays the port number Ingress Select Enable Disable the Ingress feature When the Ingress is enabled the incoming packets received by the mirrored port will be copied to the mirroring port Egress Select Enable Disable the Egress feature When the Egress is 26 enabled the outgoing packets sent by the mirrored port will be copied to the mirroring port LAG Displays the LAG number which the port belongs to The LAG member can not be selected as the mirrored port or mirroring port Anote 1 The LAG member can not be selected as the mirrored port or mirroring port 2 Aportcan not be set as the mirrored port and the mirroring port simultaneously 3 The Port Mirror function can take effect span the multiple VLANs 5 1 3 Port Security MAC Address Table maintains the mapping relationship between the port and the MAC address of the connected device which is the base of the packet forwarding The capacity of MAC Address Table is fixed MAC Address Attack is the attack method that the attacker takes to obtain the network information illeg
149. ts Multicast source sends multicast streams via the router and the streams are transmitted to user A and user B through the switch Router Its WAN port is connected to the multicast source its LAN port is connected to the switch The multicast packets are transmitted in VLAN3 Switch Port 3 is connected to the router and the packets are transmitted in VLAN3 port 4 is connected to user A and the packets are transmitted in VLAN4 port 5 is connected to user B and the packets are transmitted in VLAN5 User A Connected to Port 4 of the switch User B Connected to port 5 of the switch Configure a multicast VLAN and user A and B receive multicast streams through the multicast VLAN gt Network Diagram Router Multicast Source Port 3 Switch VLAN4 User A Port 4 Port 5 VLANS User B 82 gt Configuration Procedure Step Operation Description 1 Create VLANs Create three VLANs with the VLAN ID 3 4 and 5 respectively and specify the description of VLAN3 as Multicast VLAN on VLAN 802 1Q VLAN page Configure ports On VLAN gt 802 1Q VLAN function pages For port 3 configure its link type as GENERAL and its egress rule as TAG and add it to VLAN3 VLAN4 and VLAN5 For port 4 configure its link type as GENERAL and its egress rule as UNTAG and add it to VLAN3 and VLAN 4 For port 5 configure its link type as GENERAL and its egress rule as UNTAG
150. ty Figure 9 7 802 1P Priority The following entries are displayed on this screen gt 802 1P Priority Config 802 1P Priority Select Enable Disable 802 1P Priority 94 gt Priority Level Tag id CoS id Queue TC id CoS ID Indicates the precedence level defined by IEEE802 1P and the Indicates the priority level of egress queue the packets with tag and CoS id are mapped to The priority levels of egress queue are labeled as TCO TC1 TC2 and TC3 Arnot To complete QoS function configuration you have to go to the Schedule Mode page to select a schedule mode after the configuration is finished on this page Configuration Procedure Step Operation Description 1 Log on to the 802 1P Priority page 2 Enable 802 1P priority Required By default the 802 1P priority function is function disabled 3 Map the 802 1P priority tag to Required Select 802 1P priority tag and the the priority level corresponding priority level 4 Select a schedule mode Required Log on to the Schedule Mode page to select a schedule mode 9 1 3 DSCP Priority On this page you can configure DSCP priority DSCP DiffServ Code Point is a new definition to IP ToS field given by IEEE This field is used to divide IP datagram into 64 priorities When DSCP Priority is enabled IP datagram are mapped to different priority levels based on DSCP priority mode non IP datagram with 802 1Q tag are mapped to d
151. ulticast IP Table The following entries are displayed on this screen gt Create Static Multicast Multicast IP Enter static multicast IP address VLAN ID Enter the VLAN ID of the multicast IP Forward Port Enter the forward port of the multicast group gt Search Option Search Option Select the rules for displaying multicast IP table to find the desired entries quickly e All Displays all static multicast IP entries e Multicast IP Enter the multicast IP address the desired entry must carry VLAN ID Enter the VLAN ID the desired entry must carry e Port Enter the port number the desired entry must carry gt Static Multicast IP Table Select Select the desired entry to delete the corresponding static multicast IP It is multi optional Multicast IP Displays the multicast IP VLAN ID Displays the VLAN ID of the multicast group Forward Port Displays the forward port of the multicast group 8 3 Multicast Filter When IGMP Snooping is enabled you can specified the multicast IP range the ports can join so as to restrict users ordering multicast programs via configuring multicast filter rules 85 When applying for a multicast group the host will send IGMP report message After receiving the report message the switch will firstly check the multicast filter rules configured for the receiving port If the port can be added to the multicast group it will be added to the multicast address table if the port can
152. up port of a root or master port Backup Port Indicates the port that is the backup port of a designated port Disabled Indicates the port that is not participating in the STP The following diagram shows the different port roles 56 Connect to the root bridge Region edge port port 1 2 Master port port 1 Alternate port port 2 Designated port port 3 5 Backup port port 6 MST Region Figure 7 3 Port roles The Spanning Tree module is mainly for spanning tree configuration of the switch including four submenus STP Config Port Config MSTP Instance and STP Security 7 1 STP Config The STP Config function for global configuration of spanning trees on the switch can be implemented on STP Config and STP Summary pages 7 1 1 STP Config Before configuring spanning trees you should make clear the roles each switch plays in each spamning tree instance Only one switch can be the root bridge in each spanning tree instance On this page you can globally configure the spanning tree function and related parameters Choose the menu Spanning Tree gt STP Config STP Config to load the following page 57 Global Config STP Version Parameters Config CIST Priority Hello Time Max Aqe Forward Delay TxHoldCount Max Hops Enable Disable STP 32768 0 61440 20 15 sec 1 10 sec 6 40 pply sec 4 30 pps 1 20 hop 1 40 Figure 7 4 STP Config The following entrie
153. val 100 millisec 100 1000 Ping Result Pinging 192 168 0 1 with 64 bytes of data Reply from 192 168 0 1 bytes 64 time lt 16ms TTL 64 Reply from 192 168 0 1 bytes 64 time lt 16ms TTL 64 Reply from 192 168 0 1 bytes 64 time lt 16ms TTL 64 Reply from 192 168 0 1 bytes 64 time lt 16ms TTL 64 Ping statistics for 192 168 0 1 Packets Sent 4 Received 4 Lost 0 0 loss Approximate round trip times in milli seconds Minimum Oms Maximum Oms Average Oms Figure 11 9 Ping The following entries are displayed on this screen gt Ping Config Destination IP Enter the IP address of the destination node for Ping test Ping Times Enter the amount of times to send test data during Ping testing The default value is recommended Data Size Enter the size of the sending data during Ping testing The default value is recommended Interval Specify the interval to send ICMP request packets The default value is recommended 11 4 2 Tracert Tracert test function is used to test the connectivity of the gateways during its journey from the source to destination of the test data When malfunctions occur to the network you can locate trouble spot of the network with this tracert test Choose the menu Maintenance Network Diagnose Tracert to load the following page 124 Tracert Config Destination IP 192 168 0 100 Max Hop 4 hop 1 30 Tracert Result Figure 11 10Tracert The followin
154. will be If the VID of packet is forwarded with its current forbidden by the port VLAN tag General pace Mn Re If the egress rule of port is ropped UNTAG the packet will be forwarded after removing its VLAN tag Table 6 1 Relationship between Port Types and VLAN Packets Processing 45 IEEE 802 1Q VLAN function is implemented on the VLAN Config and Port Config pages 6 1 1 VLAN Config On this page you can view the current created 802 1Q VLAN Choose the menu VLAN gt 802 1Q VLAN gt VLAN Config to load the following page VLAN Table VLAN ID Select Select VLAN ID Name Members Operation o 1 Default VLAN 1 28 Edit Detail Total VLAN 1 Figure 6 3 VLAN Table To ensure the normal communication of the factory switch the default VLAN of all ports is set to VLAN1 The Web Management Page of switch can only be accessed through the ports in VLAN1 VLAN1 can not be modified or deleted The following entries are displayed on this screen gt VLAN Table VLAN ID Select Click the Select button to quick select the corresponding entry based on the VLAN ID number you entered Select Select the desired entry to delete the corresponding VLAN It is multi optional VLAN ID Displays the ID number of VLAN Description Displays the user defined description of VLAN Members Displays the port members in the VLAN Operation Allows you to view or modify the information for each entry e Edit Click to modify the settings
155. witch will not performs the removing operation in the TC protect cycle Such a mechanism prevents the switch from frequently removing MAC address entries gt BPDU Protect Ports of the switch directly connected to PCs or servers are configured as edge ports to rapidly transit their states When these ports receive BPDUs the system automatically configures these ports as non edge ports and regenerates spanning trees which may cause network topology jitter Normally these ports do not receive BPDUs but if a user maliciously attack the switch by sending BPDUs network topology jitter occurs To prevent this attack MSTP provides BPDU protect function With this function enabled on the switch the switch shuts down the edge ports that receive BPDUs and reports these cases to the administrator If a port is shut down only the administrator can restore it gt BPDU Filter BPDU filter function is to prevent BPDUs flood in the STP network If a switch receives malicious BPDUs it forwards these BPDUs to the other switched in the network which may result in spanning trees being continuously regenerated In this case the switch occupying too much CPU or the protocol status of BPDUs is wrong With BPDU filter function enabled a port does not receive or forward BPDUs but it sends out its own BPDUs Such a mechanism prevents the switch from being attacked by BPDUs so as to guarantee generation the spanning trees correct Choose the menu Spannin
156. witch to the default All the settings will be cleared after the switch is reset Figure 4 13 System Reboot Choose the menu System System Tools gt System Reset to load the following page System Reset Reset Note The System Reset option will restore the configuration to default and your current settings will be lost Figure 4 14 System Reset Mnote After the system is reset the switch will be reset to the default and all the settings will be cleared 4 4 Access Security Access Security is configured to control the users logging on to the Web management page On this page you can control the users logging on to the Web management page to enhance the configuration management security The definitions of Admin and Guest refer to 4 2 User Manage Choose the menu System Access Security gt Access Control to load the following page 20 Access Control Config Control Mode IP Address MAC Address Port 1 2 9 10 17 18 25 26 Session Config Session Timeout Access User Number Number Control Admin Number Guest Number Disable vw Mask 3 4 5 6 T 8 Al 12 13 14 15 16 19 20 21 22 23 24 27 28 10 min 5 30 Enable Disable 1 18 0 15 Figure 4 15 Access Control The following entries are displayed on this screen gt Access Control Config Control Mode IP Address amp Mask MAC Address Port Select the control mode for users to
157. ype a password for users login Retype the password Select the desired entry to delete the corresponding user information It is multi optional The current user information can t be deleted Displays the current user ID user name access level and user status Click the Edit button of the desired entry and you can edit the corresponding user information After modifying the settings please click the Modify button to make the modification effective Access level and user status of the current user information can t be modified 17 4 3 System Tools The System Tools function allowing you to manage the configuration file of the switch can be implemented on Config Restore Config Backup Firmware Upgrade System Reboot and System Reset pages 4 3 1 Config Restore On this page you can upload a backup configuration file to restore your switch to this previous configuration Choose the menu System System Tools Config Restore to load the following page Config Restore Restore the config from the saved config file Select a backup config file and click the Restore Config button and then you can restore to the previous config Config file Browse Note It will take a long time to restore the config file Please wait without any operation Figure 4 10 Config Restore The following entries are displayed on this screen gt Config Restore Restore Config Click the Restore Config button to restore the b

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