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ZyXEL GS-1524 User's Manual

1. COMMAND DESCRIPTION Get Allows the manager to retrieve an object variable from the agent GetNext Allows the manager to retrieve the next object variable from a table or list within an agent In SNMPv1 when a manager wants to retrieve all elements of a table from an agent it initiates a Get operation followed by a series of GetNext operations Set Allows the manager to set values for object variables within an agent Trap Used by the agent to inform the manager of some events 18 1 1 Supported MIBs MIBs let administrators collect statistics and monitor status and performance The Switch supports the following MIBs RFC 1213 SNMP MIB II MIB II System MIB II Interface RFC 1398 MIB Ether like RFC 2674 SNMPv2 SNMPv2c RFC 2819 RMON Group 1 Statistics Group 2 History Group 3 Alarm Group 9 Event GS 1524 GS 1548 User s Guide Chapter 18 SNMP 18 1 2 SNMP Traps The Switch sends traps to an SNMP manager when an event occurs SNMP traps supported are outlined in the following table Table 39 SNMP Traps OBJECT LABEL OBJECT ID DESCRIPTION SNMPv1 SNMPv2 Trap I nform Requests authenticationFailure 1 3 6 1 6 3 1 1 5 5 This trap is sent when an SNMP request comes from non authenticated hosts RFC2819 Traps 1 3 6 1 2 1 16 3 1 1 A RMON event has been triggered alarmEntry 18 1 3 SNMP v3 and Authentication SNMP v3 adds the concept
2. Mirror Setting Help Mode Disabled 01 02 03 04 05 06 07 os 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ingress Mirror Fr IE rm mm mm m rm m Im E E E E m E E E E m m m rm E E Egress Mirror m m m nit MirorTo C C Cc colc e e e elelelelelelelele e e e elele e Apply The following table describes the labels in this screen Table 16 Mirror Setting LABEL DESCRIPTION Mode Select Enabled to turn on port mirroring or select Disabled to turn it off Ingress Select the ports for which you want to monitor the ingress incoming traffic Mirror Egress Select the ports for which you want to monitor the egress outgoing traffic Mirror GS 1524 GS 1548 User s Guide Chapter 10 Mirroring Table 16 Mirror Setting continued LABEL DESCRIPTION Mirror To The Mirror To monitor port is the port you copy the traffic to in order to examine it in more detail without interfering with the traffic flow on the original port s Select the monitor port Apply Click Apply to save your changes GS 1524 GS 1548 User s Guide QoS This chapter introduces the quality of service QoS parameters you can configure on the Switch 11 1 QoS Overview QoS is used to help solve performance degradation when there is network congestion Use the QoS Setting screen to configure queuing algorithms for outgoing traffic
3. Click this to go back to the RMON History Statistics Overview screen 19 5 RMON Alarm Overview Use the RMON Alarm Overview screen to view configured alarms that occur when the sampled data exceeds the specified threshold To open this screen select 3 Alarm in the RMON MIB Table drop down list box in the RMON Lite screen Figure 80 RMON Alarm Overview RMON Lite Interval Index Sec RMON MIB Table Variable 3 Alarm z Apply Help RMON Alarm Overview Refresh Help Create new Alarm e Rising Falling Sample Startup Rising Falling Type Value Alarm Threshold Threshoid E 9 Event Owner Delete Index Index GS 1524 GS 1548 User s Guide Chapter 19 RMON Lite The following table describes the labels in this screen Table 60 RMON Alarm Overview LABEL DESCRIPTION RMON MIB Use this drop down list box to select the MIB table you want to view Table Click Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON Alarm Overview screen Create new Click this to view the RMON Alarm Create New Alarm screen where you Alarm can configure the parameters for an alarm Index This field displays the alarm configuration index number Click this number to edit the alarm entry Interval sec This field displays the time interval in seconds between data samplings Variable T
4. Note The RMON Alarm Modify screen contains the same fields as the RMON Alarm Create New Alarm screen in the following figure Figure 81 RMON Alarm Create New Alarm RMON Lite Index Interval Sec Interface Counter Sample Type Startup Alarm Rising Threshold Falling Threshold Rising Event Falling Event Owner RMON MIB Table 3 Alarm z Apply Help RMON Alarm Create New Alarm Apply Help 1 o rotor CRCAlignErrors Y Absoute Rising Threshold o o 3 The following table describes the labels in this screen Table 61 RMON Alarm Create New Alarm LABEL DESCRIPTION RMON MIB Use this drop down list box to select the MIB table you want to view Click Table Apply to refresh the screen to the selected MIB table view Index This field displays the index number of this alarm entry Interface Select the port which is monitored for this alarm Counter Select the data which is used to test if this alarm is triggered the choices are Drop Events Octets Packets and so on Sample Type Select the method of obtaining the sample value Choices are Absolute and Value Startup Alarm Select the startup alarm type Rising Threshold Falling Threshold Rising Or Falling Threshold Rising Specify a rising threshold between 0 and 2147483647 When a value is Threshold greater or equal to this threshold th
5. Chapter 11 QoS 11 3 Configuring QoS Use the QoS Setting screen to specify a queuing method and configure queue weights for the Switch Click QoS in the navigation panel to view the following screen Figure 38 QoS Setting QoS Setting Help Advanced Number of queues 4 Change Scheduling Method SA a a Low mow 0 1 2 a fa s a 9 weit queued ow ci cicicicl f s Queue 1 o jejejejeje 2 x Queue 2 o c c c e elc c jfa queue 3 High C C C c c o e e s x Weights 145 Apply The following table describes the labels in this screen Table 17 QoS Setting LABEL DESCRIPTION Advanced Click this link to configure QoS settings based on port number IP address or configure DSCP or ToS priority to 802 1p priority mappings Number of This field displays the number of queues configurable on the Switch Click queues Change to edit the number of queues on the Switch Schedulin Select Strict Priority or Weighted Round Robin g Method Strict Priority scheduling singles out the highest priority queue and ensures all queued traffic in this queue is transmitted before servicing the lower priority queues Strict Priority scheduling services the remaining queues using WRR Note Queue weights can only be changed when Weighted Round Robin is selected Weighted Round Robin scheduling services queues on a rotating basis
6. How much of the IP address is the network number and how much is the host ID varies according to the subnet mask Subnet Masks A subnet mask is used to determine which bits are part of the network number and which bits are part of the host ID using a logical AND operation The term subnet is short for sub network A subnet mask has 32 bits If a bit in the subnet mask is a 1 then the corresponding bit in the IP address is part of the network number If a bit in the subnet mask is 0 then the corresponding bit in the IP address is part of the host ID The following example shows a subnet mask identifying the network number in bold text and host ID of an IP address 192 168 1 2 in decimal Table 73 Subnet Mask Example 1ST 2ND 3RD 4TH OCTET OCTET OCTET OCTET 192 168 1 2 IP Address Binary 11000000 10101000 00000001 00000010 Subnet Mask Binary 11111111 11111111 11111111 00000000 GS 1524 GS 1548 User s Guide Appendix A IP Addresses and Subnetting Table 73 Subnet Mask Example 1ST 2ND 3RD 4TH OCTET OCTET OCTET OCTET 192 168 1 2 Network Number 11000000 10101000 00000001 Host ID 00000010 By convention subnet masks always consist of a continuous sequence of ones beginning from the leftmost bit of the mask followed by a continuous sequence of zeros for a total number of 32 bits Subnet masks can be referre
7. Jabbers This is a count of transmitted received packets that which exceeded maximum size to receive frame length Collision This is a count of transmitted collision packets CRCAlignErr This is a count of transmitted received packets that were too short shorter than 64 octets with invalid FCS or alignment errors GS 1524 GS 1548 User s Guide 55 Chapter 7 System and Port Statistics Table 11 Status Port Details continued LABEL DESCRIPTION TotalOctets This is a count of all transmitted received packets that which exceeded maximum size to receive frame length TotalPkts This is a count of transmitted received packets including bad packets all unicast broadcast multicast and MAC control packets 64 BytePkts This field shows the number of packets including bad packets received that were 64 octets in length 65 127 This field shows the number of packets including bad packets BytePkts received that were between 65 and 127 octets in length 128 255 This field shows the number of packets including bad packets BytePkts received that were between 128 and 255 octets in length 256 511 This field shows the number of packets including bad packets BytePkts received that were between 256 and 511 octets in length 512 1023 This field shows the number of packets including bad packets BytePkts received that were between 512 and 1023 octets in length 1024 1518 This
8. Network Web based management Management SNMP v1 v2c and v3 10 Trap Stations supported RMON groups history statistics alarms and events 4 Logging servers supported MIB RFC1213 MIB II System RFC1213 MIB II Interface RFC1398 MIB Ether like RFC2819 Four groups of RMON history statistics alarms and events GS 1524 GS 1548 User s Guide Chapter 22 Product Specifications This section describes the general software features of the Switch Table 72 Firmware Features FEATURE DESCRIPTION VLAN A VLAN Virtual Local Area Network allows a physical network to be partitioned into multiple logical networks Devices on a logical network belong to one group A device can belong to more than one group With VLAN a device cannot directly talk to or hear from devices that are not in the same group s the traffic must first go through a router Layer 2 Management Forward traffic based on the destination MAC address and VLAN group ID QoS Queuing is used to help solve performance degradation when there is network congestion Two scheduling services are supported Strict Priority SP and Weighted Round Robin WRR This allows the Switch to maintain separate queues for packets from each individual source or flow and prevent a source from monopolizing the bandwidth Rate Control Rate control is a combination of bandwidth management and broadcast storm control This feature
9. RMON MIB Table 2 History Statistics Apply Help RMON History Statistics Overview Refresh Help History Data Bucket Control Source Granted Interval Owner Index 1 Port 01 50 1800 monitor The following table describes the labels in this screen Table 58 RMON History Statistics Overview LABEL DESCRIPTION RMON MIB Use this drop down list box to select the MIB table you want to view Click Table Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON History Statistics Overview screen History This field displays the configuration index number Click on the index Control Index number to view the details for this entry Data Source This is the port of the Switch polled for data Bucket This field displays the number of data samplings the probe allows to Granted store Interval This field displays the time between data samplings in seconds Owner This field displays the creator of this entry GS 1524 GS 1548 User s Guide 127 Chapter 19 RMON Lite 19 4 4 RMON History Statistics Control Use the RMON History Statistics Control screen to view the details of each polling sample collected for the history control index entries you configured Click on an individual History Control I ndex entry in the RMON History Statistics Overview screen to view the screen as shown Figure 79 RMON History Sta
10. Table 64 RMON Event Log Overview continued LABEL DESCRIPTION Last Time This field indicates the value of system up time on the Switch when this Sent event was last generated It appears in the following format XXD XXH XXM XXS where XX stands for a number and D stands for days H for hours M for minutes and S for seconds Owner This field displays the entry creator It displays monitor if the entry was created by the Switch itself 19 7 1 RMON Event Log Event Use the RMON Event Log Event screen to view the details of existing RMON event log entries Click on the specific Event Index numbers in the RMON Event Log Overview screen to view the screen as shown Figure 85 RMON Event Log Event RMON Lite RMON MIB Table 9 EventLog x Apply Help RMON Event Log Event Index 1 Refresh Help Log Index Log Time Log Description I Event Log Overview The following table describes the labels in this screen Table 65 RMON Event Log Event LABEL DESCRIPTION RMON MIB Use this drop down list box to select the MIB table you want to view Click Table Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON Event Log Event Index screen Log Index This field displays a log index number Log Time This field displays the time a log was generated Log This field displays an implem
11. This field displays the severity level of the log event The possible severity levels are Error to record system failures such as events which will cause the Switch to malfunction and events such as invalid user input in the web configurator Warning to record non critical errors on the Switch The Switch will continue to function when warnings are recorded As to record regular system events such as configuration changes or logins Debug to record events which can be helpful for engineering debugging of the Switch s function This field is not recommended to track as it creates many messages not helpful to typical users GS 1524 GS 1548 User s Guide Chapter 17 Event Logging Table 35 Logs RAM Flash continued LABEL DESCRIPTION Category This field displays what category the log entry fits The categories are based on software and hardware features of the Switch For example the category AUTODOS records events which deal with the Auto Denial of Service features you set up and the category SYSTEM records events which deal with the overall operation of the Switch Time This field specifies the time when the Switch recorded the log event The Switch resets its internal clock when it is restarted Message This field displays an explanation for the log entry Goto page Click Next Previous or click on a page number to browse through the log pages GS 1524 GS 1548 User s
12. 192 168 1 63 Table 78 Subnet2 IP SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUE IP Address 192 168 1 64 IP Address Binary 11000000 10101000 00000001 01000000 Subnet Mask Binary 11111111 11111111 11111111 11000000 Subnet Address Lowest Host ID 192 168 1 65 192 168 1 64 Broadcast Address Highest Host ID 192 168 1 126 192 168 1 127 Table 79 Subnet 3 IP SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUE IP Address 192 168 1 128 IP Address Binary 11000000 10101000 00000001 10000000 Subnet Mask Binary 11111111 11111111 11111111 11000000 Subnet Address Lowest Host ID 192 168 1 129 192 168 1 128 Broadcast Address Highest Host ID 192 168 1 190 192 168 1 191 Table 80 Subnet 4 IP SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUE IP Address 192 168 1 192 IP Address Binary 11000000 10101000 00000001 11000000 Subnet Mask Binary 11111111 11111111 11111111 11000000 Subnet Address 192 168 1 192 Lowest Host ID 192 168 1 193 Broadcast Address 192 168 1 255 Highest Host ID 192 168 1 254 GS 1524 GS 1548 User s Guide Appendix A IP Addresses and Subnetting Example Eight Subnets Similarly use a 27 bit mask to create eight subnets 000 001 010 011 100 101 110 and 111 The following table shows IP address last octet values for each subnet Table 81 Eight Subnets suser SUBNET rimsr aponess ASt eos REGABSAST 1 0 1 30 31 2
13. Broadcast storm control Static MAC address forwarding Switching Switching fabric GS 1524 48Gbps non blocking GS 1548 96Gbps non blocking Max Frame size 1522 bytes Forwarding frame IEEE 802 3 IEEE 802 1Q Ethernet II PPPoE Prevent the forwarding of corrupted packets QoS IEEE 802 1p 4 priority queues per port Port based egress traffic shaping DSCP to IEEE 802 1p mapping ToS to IEEE 802 1p mapping Source IP based prioritization of traffic GS 1524 GS 1548 User s Guide Chapter 22 Product Specifications Table 70 General Product Specifications continued Layer 2 VLAN Tag based IEEE 802 1Q VLAN Features l Number of VLAN 4K 256 static maximum Port Supports static port trunking Aggregation Six groups up to 8 ports each Port All ports support port mirroring mirroring Rate control Supports rate limiting from 64 Kbps to 1 Gbps on a port by port basis for incoming traffic Supports egress traffic shaping via the bucket token algorithm Security Static MAC address filtering Dynamic ARP filtering 16 Static Entries Table 71 Management Specifications System Control Alarm Status surveillance LED indication for power status Performance monitoring Line speed Four RMON groups history statistics alarms and events Throughput monitoring Port mirroring and aggregation Firmware upgrade and download through HTTP FLASH memory Reset to default button
14. Create LABEL DESCRIPTION Remote IP Enter the IP address of the remote trap station in dotted decimal Address notation Community Specify the community string used with this remote trap station String Create Click this to add this SNMP user to the Switch Cancel Click this to go back to the main SNMP Group screen without saving your changes 18 6 2 SNMP Trap Station Modify Click on the Trap Station I D number or select a Trap Station ID from the Trap Station I D drop down list box in the SNMP Trap Station screen to modify the settings of an existing trap station Figure 73 SNMP Trap Station Modify SNMP Trap Station Help Trap ID 1 Remove This Trap Station Display All Trap Station Remote IP Address 192 168 1 3 Community String public Apply GS 1524 GS 1548 User s Guide Chapter 18 SNMP The following table describes the labels in this screen Table 53 SNMP Trap Station Modify LABEL DESCRIPTION Trap ID This field indicates which trap station you are modifying Click on Remove This Trap Station to delete this trap station configuration from the Switch Click on Display All Trap Station to view the main SNMP Trap Station screen Remote IP Enter the IP address of the remote trap station in dotted decimal Address notation Community Specify the community string used with this remote trap station String Apply Click this to save your settings to
15. Port13 monitor Disabled Pot02 monitor Disabled Port i4 monitor Disabled Port 03 monitor Disabled Port 15 monitor Disabled Port 04 monitor Disabled Port 16 monitor Disabled Port 05 monitor Disabled Port 17 monitor Disabled Port06 monitor Disabled Portis monitor Disabled Port 07 monitor Disabled Port 19 monitor Disabled Pot08 monitor Disabled Port 20 monitor Disabled Port 09 monitor Disabled Port 21 monitor Disabled Port 10 monitor Disabled Port22 monitor Disabled Port 11 monitor Disabled Port23 monitor Disabled Port12 monitor Disabled Pot24 monitor Disabled Click the DataSource ID to get the detail The following table describes the labels in this screen Table 54 RMON Statistics Overview LABEL DESCRIPTION RMON MIB Use this drop down list box to select the MIB table you want to view Click Table Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON Lite Statistics Overview Screen Data Source This field displays the ports on the Switch Click on the port number to configure the settings for that port Owner This field displays the entry creator It displays monitor if the entry was created by the Switch itself Status This field displays Enabled if statistics are being collected on this port It displays Disabled if statistics are not being collected on th
16. Subnet masks determine the maximum number of possible hosts on a network You can also use subnet masks to divide one network into multiple sub networks Introduction to IP Addresses One part of the IP address is the network number and the other part is the host ID In the same way that houses on a street share a common street name the hosts on a network share a common network number Similarly as each house has its own house number each host on the network has its own unique identifying number the host ID Routers use the network number to send packets to the correct network while the host ID determines to which host on the network the packets are delivered Structure An IP address is made up of four parts written in dotted decimal notation for example 192 168 1 1 Each of these four parts is known as an octet An octet is an eight digit binary number for example 11000000 which is 192 in decimal notation Therefore each octet has a possible range of 00000000 to 11111111 in binary or O to 255 in decimal GS 1524 GS 1548 User s Guide Lus Appendix A IP Addresses and Subnetting The following figure shows an example IP address in which the first three octets 192 168 1 are the network number and the fourth octet 16 is the host ID Figure 89 Network Number and Host ID 192 168 1 16 i at i p af mmmh i L I L I L rt a 4 a EB Ee eee m m m m um m 9
17. based on their queue weight the number you configure in the queue Weight field Queues with larger weights get more service than queues with smaller weights GS 1524 GS 1548 User s Guide Chapter 11 QoS Table 17 QoS Setting continued LABEL DESCRIPTION Priority This value indicates packet priority and is retrieved from the priority tag field of incoming packets The values range from 0 lowest priority to 7 highest priority Click the options below the priority values to send packets of a specific priority to a particular queue You can also set this priority based on criteria you configure in the Advanced QoS screens See the sections later in this chapter for more information Queue 0 Queue 3 This field indicates which Queue 0 to 3 you are configuring Queue 0 has the lowest priority and Queue 3 the highest priority Weight You can only configure the queue weights when Weighted Round Robin is selected Bandwidth is divided across the different traffic queues according to their weights Note If you want to use Strict Priority but want to change the weights for the queues configure them with Weighted Round Robin selected first and then change the scheduling method to Strict Priority Apply Click Apply to save your changes 11 3 1 Change Number of Queues Use the Change Number of Queues screen to edit the number of queues on the Switch Click Change in the Qo
18. 1548 User s Guide 25 Chapter 2 Hardware Installation and Connection GS 1524 GS 1548 User s Guide Hardware Overview This chapter describes the front panel and rear panel of the Switch and shows you how to make the hardware connections 3 1 Front Panel The figures below show the front panel of the Switch Figure 8 GS 1524 Front Panel RJ 45 Gigabit Ethernet Mini GBIC TU ga eC eee cum App bh dh dh P LA oh dh 31 R3 PS eL Eo 2L eL IURI MN ANNA S 2S Figure 9 GS 1548 Front Panel Mini GBIC LEDs am 66 85 B6 oa ca oo ee aa x s mom Pu ww aa AAA E Jm RJ 45 Gigabit Ethernet GS 1524 GS 1548 User s Guide Chapter 3 Hardware Overview The following table describes the ports on the panels Table 1 Panel Connections CONNECTO DESCRIPTION RJ 45 Gigabit Connect these Gigabit Ethernet ports to high bandwidth backbone network Ethernet Ethernet switches or use them to daisy chain other switches Ports Mini GBI C Use mini GBIC transceivers in these slots for fiber optic connections to Slots backbone Ethernet switches 3 1 1 Ethernet Ports The GS 1524 has 24 auto negotiating auto crossover RJ 45 Gigabit Ethernet ports The GS 15
19. 192 168 1 1 2 If this does not work you have to reset the device to its factory defaults See Section 3 4 on page 31 forgot the username and or password 1 The default username is admin and the default password is 1234 2 If this does not work you have to reset the device to its factory defaults See Section 3 4 on page 31 cannot see or access the Login screen in the web configurator 1 Make sure you are using the correct IP address The default IP address is 192 168 1 1 f you changed the IP address use the new IP address f you changed the IP address and have forgotten it see the troubleshooting suggestions for forgot the IP address for the Switch 2 Check the hardware connections and make sure the LEDs are behaving as expected See your Quick Start Guide and Section 3 3 on page 30 3 Make sure your Internet browser does not block pop up windows and has JavaScripts and Java enabled 4 Make sure your computer is in the same subnet as the Switch If you know that there are routers between your computer and the Switch skip this step GS 1524 GS 1548 User s Guide Chapter 21 Troubleshooting 5 Reset the device to its factory defaults and try to access the Switch with the default IP address See Section 3 4 on page 31 6 If the problem continues contact the vendor or try one of the advanced suggestions Advanced Suggestions Try to access the Switch using another service such a
20. 2007 MAC Address NIA IP Address 111 11 11 111 Subnet Mask 255 255 255 0 Gateway 111 11 11 254 L2 Table Aging Disabled Backup settings Restore settings au mom L L E a E L e L L i ica C3 L GS 1524 GS 1548 User s Guide Chapter 4 The Web Configurator A The LED panel displays the port status B The navigation panel has links to screens that let you configure the Switch s features C The function frame allows you to view and edit individual feature settings D Use the Help link to find out more information about the fields in the screen you are configuring 4 3 1 The LED Panel Use the LED panel to view the status of the individual ports The LED panel in the web configurator updates automatically every 5 seconds Figure 18 LED Panel o o0 The following table describes the labels in this screen Table3 LED Panel LABEL DESCRIPTION 1G This LED is green if the corresponding port has a 1 Gbps connection 100 This LED is amber if the corresponding port has a 100 Mbps connection Full This LED is green if the corresponding port is transmitting in full duplex mode Link This LED is green if the corresponding port has an Ethernet connection It is orange if the port has been disabled 1 24 GS 1524 This number indicates the port number on the Switch 1 48 GS 1548 4 3 2 The Navigation Pane
21. 9F CD CC 4F 1 18 dynamic 12 00 CO A8 FA E9 27 1 18 dynamic 43 00 50 BA AD 4F 81 1 2 dynamic ET 00 00 E8 7C 14 80 1 18 dynamic 45 00 04 80 9B 78 00 1 18 dynamic Next Page The following table describes the labels in this screen Table 27 Display L2 Address Table LABEL DESCRIPTION Reload Click this to update all the fields in the L2 Address table Address Table Item This is the index number of the MAC address entry Source MAC This field displays the MAC address VID This field displays the VID of a manually entered MAC address entry Port This field displays the port number of a MAC address entry or it displays HOST if its the entry for the Switch itself Type This field displays whether this entry was entered manually into the L2 address table static or whether it was learned by the Switch dynamic Previous Use these navigation links to browse all L2 learned entries Page Next Page GS 1524 GS 1548 User s Guide Chapter 13 Layer 2 L2 Management GS 1524 GS 1548 User s Guide Cable Diagnostics This chapter explains the Cable Diagnostics screen 14 1 Diagnosti The cable diagnostics function works with systems using CAT 5 twisted pair cables cs Overview The Switch can perform basic cable diagnostics Click Cable Diagnostic in the navigation panel to view the screen as shown Figure 50 Cable Diagnostic Cab
22. In the event of problems that cannot be solved by using this manual you should contact your vendor If you cannot contact your vendor then contact a ZyXEL office for the region in which you bought the device See http www zyxel com GS 1524 GS 1548 User s Guide 3 About This User s Guide web contact us php for contact information Please have the following information ready when you contact an office Product model and serial number Warranty Information Date that you received your device Brief description of the problem and the steps you took to solve it 4 GS 1524 GS 1548 User s Guide Document Conventions Document Conventions Warnings and Notes These are how warnings and notes are shown in this User s Guide Warnings tell you about things that could harm you or your device Note Notes tell you other important information for example other things you may need to configure or helpful tips or recommendations Syntax Conventions The GS 1524 GS 1548 may be referred to as the Switch the device or the system in this User s Guide Product labels screen names field labels and field choices are all in bold font A key stroke is denoted by square brackets and uppercase text for example ENTER means the enter or return key on your keyboard Enter means for you to type one or more characters and then press the ENTER key Select or choose means for you to u
23. Remove This Community to delete this user configuration from the Switch Click on Display All Community to view the main SNMP Community screen Community String An SNMP community string is a text string that acts as a password It is used to authenticate messages that are sent between the management station the SNMP manager and the device the SNMP agent The community string is included in every packet that is transmitted between the SNMP manager and the SNMP agent Type the community string for this community Remote Station IP Specify the IP address of the remote SNMP management station in dotted decimal notation Group Name Select the SNMP group you want to belong to this community Apply Click this to save your settings to the Switch 18 5 SNMP Notification SNMP supports a notification mechanism to alert SNMP managers when events occur There are two types of notification mechanisms supported by the Switch SNMP Notification SNMP traps are sent to external SNMP management stations GS 1524 GS 1548 User s Guide Chapter 18 SNMP Authentication Notification Failed authentication attempts are logged by the Switch Use the SNMP Notification section of the SNMP Trap Station screen to enable the notification mechanisms Click SNMP Trap Station to view the screen as shown Figure 70 SNMP Notification SNMP Notification Enable SNMP Notification Enable Auth
24. VLAN Click this button to go back to the VLAN status screen ALL This button allows you to configure all the ports at once Click this button to change the state of all the ports at once The possible states are empty This indicates that the port is not part of the VLAN T This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is added U This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is removed These buttons allow you to specify whether the individual ports are members of this VLAN Click the buttons below the numbers to change the state of the port The possible states are empty This indicates that the port is not part of the VLAN T This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is added U This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is removed Apply Click Apply to create the VLAN or update the VLAN s configuration GS 1524 GS 1548 User s Guide Chapter 8 VLAN GS 1524 GS 1548 User s Guide Trunking This chapter shows you how to logically aggregate physical links to form one logical higher bandwidth link 9 1 Trunking Overview Trunking is the grouping of physical ports into one logical higher capacity link You may want to t
25. all ports can freely communicate with each other Figure 3 High Performance Switched Workgroup Application m m m 1 1 4 IEEE 802 1Q VLAN Application Examples A VLAN Virtual Local Area Network allows a physical network to be partitioned into multiple logical networks Stations on a logical network belong to one group A station can belong to more than one group With VLAN a station cannot directly talk to or hear from stations that are not in the same group s unless such traffic first goes through a router For more information on VLANs refer to Chapter 8 on page 57 1 1 4 1 Tag based VLAN Example Ports in the same VLAN group share the same frame broadcast domain thus increase network performance through reduced broadcast traffic VLAN groups can be modified at any time by adding moving or changing ports without any re cabling GS 1524 GS 1548 User s Guide 2 Chapter 1 Getting to Know Your Switch Shared resources such as a server can be used by all ports in the same VLAN as the server In the following figure only ports that need access to the server need to be part of VLAN 1 Ports on the Switch can belong to other VLAN groups too Figure 4 Shared Server Using VLAN Example lt gt devi rA e um m o o m m mo 22 GS 1524 GS 1548 User s Guide Hardware Installation and Connection This chapter shows you how to install and connect the Switch 2 1 Fre
26. as it creates many messages not helpful to typical users Category Select All to search all categories or specify the individual categories you want to search The categories are based on software and hardware features of the Switch For example the category AUTODOS records events which deal with the Auto Denial of Service features you set up and the category SYSTEM records events which deal with the overall operation of the Switch Submit Click this to perform the search and view the results in the search results screen See Section 17 5 1 on page 103 Export Click this to export save the search results The logs default name is events csv A csv Comma Separated Values file can be viewed by most spreadsheet software such as Microsoft s Excel 17 5 1 Search Results The Search Results RAM Flash screen displays the results of your log query Click Submit in the Logs Search screen to view the logs which match your search criteria Figure 58 Logs Search Results Search Results RAM Hap Index Level Category Time Message 97 INFO WEB 2008 5I1 17 21 26 User admin logined from 192 168 1 33 45 INFO WEB 2006 5 1 0 18 15 User admin logined from 192 168 1 33 41 INFO WEB i 2006 5 1 0 16 53 User admin logined from 192 168 0 236 GS 1524 GS 1548 User s Guide Chapter 17 Event Logging The following table describes the labels in this screen Ta
27. details 7 2 Statistics Summary Click Statistics in the navigation panel to view the screen as shown Use this screen to view the traffic counters for the Switch Figure 31 Statistics Statistics Clear Counters Refresh Help Port Tx Rx Port Tx Rx 01 0 13 0 0 02 0 0 14 0 0 03 D 15 D 04 1395 2423 186 0 0 05 Em BI EN az 1 ji o ii 06 E 48 18 281 or D 19 0 0 ee a D 20 i R o a 2 0 iE 0 a 10 0 0 22 0 j a 1 0 0 Sg 0 0 12 0 0 24 0 0 All numbers shown are numbers of packets GS 1524 GS 1548 User s Guide 53 Chapter 7 System and Port Statistics The following table describes the labels in this screen Table 10 Statistics LABEL DESCRIPTION Clear Counters Click this to reset all counters to zero Refresh Click this to retrieve the current information from the Switch and update this screen Port This identifies the Ethernet port Click a port number to display the Port Details screen refer to Figure 32 on page 54 Tx This field shows the number of transmitted frames on this port Rx This field shows the number of received frames on this port 7 3 Port Statistics Click a number in the Port column in the Statistics screen to display individual port statistics Use this screen to check status and detailed performance data ab
28. device Do NOT open the device or unit Opening or removing covers can expose you to dangerous high voltage points or other risks ONLY qualified service personnel should service or disassemble this device Please contact your vendor for further information Make sure to connect the cables to the correct ports Place connecting cables carefully so that no one will step on them or stumble over them Always disconnect all cables from this device before servicing or disassembling Use ONLY an appropriate power adaptor or cord for your device Connect the power adaptor or cord to the right supply voltage for example 110V AC in North America or 230V AC in Europe Do NOT allow anything to rest on the power adaptor or cord and do NOT place the product where anyone can walk on the power adaptor or cord Do NOT use the device if the power adaptor or cord is damaged as it might cause electrocution f the power adaptor or cord is damaged remove it from the power outlet Do NOT attempt to repair the power adaptor or cord Contact your local vendor to order a new one Do not use the device outside and make sure all the connections are indoors There is a remote risk of electric shock from lightning Do NOT obstruct the device ventilation slots as insufficient airflow may harm your device This product is recyclable Dispose of it properly GS 1524 GS 1548 User s Guide Safety Warnings GS 1524 GS 154
29. enable bandwidth limits for outgoing traffic Shaping on the port Rate This is a read only field indicating the rate limit of outgoing traffic on the port in Kbps This value changes depending on the number of Tokens Added Per Interval GS 1524 GS 1548 User s Guide Chapter 12 Port Rate Limit and Storm Control Table 23 Rate Limit Configuration continued LABEL DESCRIPTION Tokens Added Per Interval The Switch uses a Token Bucket algorithm to limit the outgoing rate on the ports and to limit the largest amount of packets that can leave the port in any one instance In this algorithm each token represents an allowed amount of bandwidth to be sent out on the port The bucket holds the tokens In other words the number of tokens in the bucket represents the maximum allowed bandwidth to go out on the port The size of the bucket is specified by the burst size see below Every time traffic goes out on the port tokens representing used up bandwidth are removed from the bucket thus limiting the amount of traffic allowed to go out on the port Tokens are also added to the bucket every Token Update I nterval thus resetting the amount of bandwidth allowed to go out If the bucket is empty the data packets are dropped until more tokens are added to the bucket Select the number of tokens that should be added to the bucket per Token Update I nterval Each token represents 5 bit in bandwidth allowed
30. field shows the number of packets including bad packets BytePkts received that were between 1024 and 1522 octets in length GS 1524 GS 1548 User s Guide VLAN This chapter shows you how to configure IEEE 802 1Q tagged VLANs 8 1 Introduction to IEEE 802 1Q Tagged VLANs A tagged VLAN uses an explicit tag VLAN ID in the MAC header to identify the VLAN membership of a frame across bridges they are not confined to the switch on which they were created The VLANs can be created statically by hand or dynamically through GVRP The VLAN ID associates a frame with a specific VLAN and provides the information that switches need to process the frame across the network A tagged frame is four bytes longer than an untagged frame and contains two bytes of TPID Tag Protocol Identifier residing within the type length field of the Ethernet frame and two bytes of TCI Tag Control Information starts after the source address field of the Ethernet frame The CFI Canonical Format Indicator is a single bit flag always set to zero for Ethernet switches If a frame received at an Ethernet port has a CFI set to 1 then that frame should not be forwarded as it is to an untagged port The remaining twelve bits define the VLAN ID giving a possible maximum number of 4 096 VLANs Note that user priority and VLAN ID are independent of each other A frame with VID VLAN Identifier of null 0 is called a priority frame meaning that only the pri
31. modifying the settings in a screen click Apply to save your changes back to the Switch GS 1524 GS 1548 User s Guide Chapter 4 The Web Configurator 4 5 Switch Lockout You could block yourself and all others from using the web configurator if you Remove all the ports from the default VLAN default is VLAN 1 when no other VLANs exist Disable all ports Forget the password and or IP address Enable Dynamic ARP without entering the proper MAC to IP address binding 4 6 Resetting the Switch If you lock yourself and others from the Switch or forget the administrator password you will need to reset the Switch back to the factory defaults Use the RESET button to reset the Switch back to factory defaults Press and hold the RESET button for one second The Switch will reload its factory defaults The Switch is now reinitialized with a default configuration file including the default administrator username admin and password 1234 The IP address of the Switch also reverts to the default 192 168 1 1 GS 1524 GS 1548 User s Guide Chapter 4 The Web Configurator 4 7 Logging Out of the Web Configurator Click Logout in the navigation panel to exit the web configurator You have to log in with your password again after you log out This is recommended after you finish a management session for security reasons Figure 20 Web Configurator Logout Link Device Name G8 1524
32. octets each octet is made up of a pair of hexadecimal characters Using Default Select this radio button to use the default Engine ID based on the MAC address of the Switch for SNMP Apply Click this to save your changes to the Switch 18 2 SNMP Group An SNMP group is a set of managers that are assigned common access rights to agent MIBs You can also choose to have all managers in a group authenticate with agents Use the SNMP Group screen to create SNMP groups Click SNMP gt Group to view the screen as shown Figure 61 SNMP Group SNMP Group Help Group ID Group Name Group ID gt Create New Group Click on Group ID to edit or remove SNMP Version Authentication Access The following table describes the labels in this screen Table 41 SNMP Group LABEL DESCRIPTION Group ID Select the SNMP group you want to edit Create New Click this to configure a new SNMP group Group Group ID This field indicates the group identification number It is used for identification only Click on the individual group number to edit the group settings Group Name This field displays the name of the SNMP group SNMP Version This field indicates which SNMP version this group uses to manage the Switch Authenticatio n This field indicates whether authentication is required for members of this group Authentication can only be confi
33. octets and contained an invalid FCS including alignment errors StatsCollisions This field displays the total number of collisions occurred StatsPkts64Octets This field displays the number of packets including bad packets received that were 64 octets in length StatsPkts65to1270ctets This field displays the number of packets including bad packets received that were between 65 and 127 octets in length StatsPkts128to255Octets This field displays the number of packets including bad packets received that were between 128 and 255 octets in length StatsPkts256to5110ctets This field displays the number of packets including bad packets received that were between 256 and 511 octets in length StatsPkts512to1023Octet S This field displays the number of packets including bad packets received that were between 512 and 1023 octets in length StatsPkts1024to15180cte ts This field displays the number of untagged packets including bad packets received that were between 1024 and 1518 octets in length This number also includes tagged packets received that were 1522 octets in size Statistics Overview Click this to go back to the RMON Statistics Overview screen 19 4 RMON Lite History MIB RMON Lite History MIB configuration is divided into two parts 2 History Control and 2 History Statistics GS 1524 GS 1548 User s Guide Chapter 19 RMON Lite Use the
34. on page 133 Figure 83 RMON EventCreate New Event RMON Lite RMON MIB Table Index Description Type Community Owner Event Overview 3 Event RMON Event Create New Event Apply v Apply Help Help None Log SNMP Trap Log and Trap The following table describes the labels in this screen Table 63 RMON Event Configuration Screens LABEL DESCRIPTION RMON MIB Use this drop down list box to select the MIB table you want to view Click Table Apply to refresh the screen to the selected MIB table view Index This field displays the index number of the event entry Description Enter a description of the event You can use 1 127 printable ASCII characters Spaces are allowed You can also leave this field blank Type Select an event type None to do nothing e Log to generate a log when an associated alarm is generated Trap to generate a trap when an associated alarm is generated Log and Trap to generate a log entry and trap when an associated GS 1524 GS 1548 User s Guide alarm is generated Chapter 19 RMON Lite Table 63 RMON Event Configuration Screens continued LABEL DESCRIPTION Community This field displays the community or password You can use 1 31 printable ASCII characters Spaces are not allowed Owner Enter a descriptive name of the application that creates this entry You can use 1 6
35. optic module s connectors 3 1 2 1 Transceiver Installation Use the following steps to install a mini GBIC transceiver SFP module 1 Insert the transceiver into the slot with the exposed section of PCB board facing down Figure 10 Transceiver Installation Example 2 Press the transceiver firmly until it clicks into place 3 The Switch automatically detects the installed transceiver Check the LEDs to verify that it is functioning properly Figure 11 Installed Transceiver 3 1 2 2 Transceiver Removal Use the following steps to remove a mini GBIC transceiver SFP module GS 1524 GS 1548 User s Guide Chapter 3 Hardware Overview 1 Open the transceiver s latch latch styles vary Figure 12 Opening the Transceiver s Latch Example 2 Pull the transceiver out of the slot Figure 13 Transceiver Removal Example RES 3 1 3 The RESET Button Reset the Switch to its factory default configuration via the RESET button Press the RESET button for one second and release The Switch automatically reboots and reloads its factory default configuration file The RESET button is on the front panel of the GS 1548 or on the rear panel of the GS 1524 Note When you use the RESET button all of your configuration settings will be lost Use the default IP address 192 168 1 1 and user name admin and password 1234 to log back into the Switch It may take up to 2 minutes for the Switch to restart when you reload t
36. packets e SIP Session Initiation Protocol is an internationally recognized standard for implementing VoIP SIP is an application layer control signaling protocol that handles the setting up altering and tearing down of voice and multimedia sessions over the Internet MGCP Media Gateway Control Protocol is a control and signal standard for the conversion of audio signals carried on telephone circuits PSTN to data packets carried over the Internet or other packet networks SCCP Skinny Client Control Protocol is a Cisco proprietary protocol used between call managers and VolP phones GS 1524 GS 1548 User s Guide Chapter 16 Auto VoIP 16 2 Auto VoIP Settings Use the Auto VolP Settings to enable automatic assignment of high priority to Vol P packets passing through the Switch Click Auto VoIP in the navigation panel to view the following screen Figure 53 Auto VoIP Settings AutoVolP Settings Help Profiles MARE gt Apply The following table describes the labels in this screen Table 32 Auto VolP Settings LABEL DESCRIPTION Profiles Select Disable if you don t want to give higher priority to VolP traffic or select I P Phone to give the highest priority to SIP MGCP and SCCP packets passing through the Switch Apply Click Apply to save your changes GS 1524 GS 1548 User s Guide ART Ill Management and Troubleshootins Event Logging 97 SNMP 1
37. sarsbeceusxuisuccacetnldene sexenounecascuodeasineas 67 Ae AGE PGI Em 68 JE 0S Enhan I IET T D D E ID LLLI 68 UA oT ATI CI TET 69 These Eid eA MEO et 70 11 5 PAD DIOS EDDA asses than das nuit zu ddeducctu dua id d risp ocatdifobun d cb BN T T 70 DLL Port Based CDS uestigia u sdrubiidqdieeu lena Mean id tees E E D FREI MES 71 Top DOOP BaESQ LIIS sione rti ebore aA le Pic E et Mc bd a RI 72 11 4 3 Differentiated Services Code Point DSCP Overview sess 72 TAA OSCR Based QOS SOCON R 72 112558 Tas BARCO EOS a sdcdtaonGun ades Roa abro uc e E Fa bU DA Abb 74 TL EO IP Address Based QUOD qusssaciuividbieesq esa e Vaid R RD DM DU bs t doble d au R AE 75 Chapter 12 Port Bate Limit and Storm Control iei er ni ueaba sun attic cuba atra ntc opt nine ace dhn dnce Msn ecd 77 121 Pot Rab GGO e antenna aaa 77 jx WEL U TRE 1 a E T A A A E AAA MM 78 12 1 2 Broadcast Stonn Control SUS suis teeesieuturtuceii ui Ret EM Fence inue cei eed an RE dees 79 Chapter 13 Layar 2 L2 Manageme Miine 83 Jod Comigo L2 Management aironi iiai aai 83 13 121 Add a Static MAG Address Eh oeste ect isiei be etai dap tbeewid ds aa NIS E ANRA 84 13 2 Viena ihe L3 Adios TRIB Guess n prb evt PEDIR ME EAR pesado RET SERERE LA REM patie 85 Chapter 14 decpniciti sd sce 87 GS 1524 GS 1548 User s Guide 18 Table of Contents DET DISIOOSICS UBI Leooisssantagsabbdas orbc a pr
38. the SNMP community you want to edit Create New Community Click this to configure a new SNMP community Community ID This field indicates the community number It is used for identification only Click on the individual community number to edit the community settings Community String This field indicates the SNMP community string An SNMP community string is a text string that acts as a password It is used to authenticate messages that are sent between the management station the SNMP manager and the device the SNMP agent The community string is included in every packet that is transmitted between the SNMP manager and the SNMP agent Remote Station IP This field displays the IP address of the remote SNMP management station Group Name This field indicates the group which is part of this SNMP community Previous Page Next Page Use these navigation links to browse all of your SNMP groups GS 1524 GS 1548 User s Guide Chapter 18 SNMP 18 4 1 SNMP Community Create Click on the Create New Community link in the SNMP Community screen to add an SNMP community The screen displays as shown Figure 68 SNMP Community Create Group Name SNMP Community Help Community String public Remote Station IP 0 0 0 0 reate Cancel The following table describes the labels in this screen Table 48 SNMP Community Create LABEL DE
39. the Switch GS 1524 GS 1548 User s Guide 19 1 RMON Lite This chapter explains how to configure the RMON Lite screens RMON Lite Overview The Remote Network Monitoring Management Information Base RMON MIB defines objects for managing remote network monitoring devices The remote network monitoring devices referred to as monitors or probes are usually stand alone devices and devote significant internal resources for the purposes of managing a network There are a total of nine RMON MIB groups defined in RFC 2819 The Switch supports four of the RMON MIB groups Group 1 Statistics Group 2 History Group 3 Alarm Group 9 Event The Switch s implementation is therefore referred to as RMON Lite The following sections describe how to configure the RMON Lite settings on the Switch Refer to RFC 2819 for more information on RMON MIBs GS 1524 GS 1548 User s Guide Chapter 19 RMON Lite 19 2 RMON Statistics Overview Click RMON Lite in the navigation panel to open the RMON Statistics Overview screen Use this screen to look at and configure settings for gathering statistics for the Ethernet ports on the Switch Figure 74 RMON Statistics Overview RMON Lite RMON MIB Table 1 Statistics Apply Help RMON Statistics Overview Refresh Help gee Owner Status Poo Owner Status Port 01 monitor Disabled
40. 0 E 30 D 62 D 3 0 3 D Apply Change Settings GS 1524 GS 1548 User s Guide Chapter 11 QoS The following table describes the labels in this screen Table 19 DSCP Based QoS LABEL DESCRIPTION Mode Select DSCP Based QoS to specify mapping rules between DSCP priority and IEEE 802 1p priority for incoming packets on the Switch Change Configure the following Priority un e DSCP Select the DSCP priority for which you want to change a priority mapping Priority Select the IEEE 802 1p priority you want to assign to the packets with the DSCP priority you specified in the DSCP field Click Change to view your changed settings Note The changes are not applied until you click Apply Change Settings DSCP This is a summary table of your DSCP to IEEE 802 1p priority mappings The Priority DSCP column indicates the DSCP values of the incoming packets and the Priority column indicates what IEEE 802 1p priority gets assigned to those packets Apply Click this when you have reviewed the changes you want to make and you Change want to save them to the Switch s memory Settings 11 4 5 ToS Based QoS You can configure the Switch to assign a IEEE 802 1p priority to packets coming into the Switch with Type of Service ToS priority assigned to them Select ToS Based QoS in the QoS Enhancement Setting screen to view the following screen Figure 42 ToS Based QoS QoS Enhancement Settin
41. 05 RMON Lite 121 Dynamic ARP 137 Troubleshooting 141 Product Specifications 145 17 1 Event Logging This chapter shows you different ways to inspect logs and how to configure an external log server Event Logging Overview You can configure the Switch to save specific events in different log targets RAM This log is saved into the Switch s volatile memory The logs are cleared when the Switch is rebooted Flash This log is saved into the switch s non volatile memory You can view the logs even after the switch is rebooted Due to the space limitations on the switch the oldest log entries are overwritten as new events are recorded Server You can configure syslog servers to store system events from the Switch The Switch uses UDP protocol to send log messages to the remote servers The syslog servers must be Berkeley Software Distribution BSD syslog protocol compliant GS 1524 GS 1548 User s Guide Chapter 17 Event Logging 17 2 Logging Screen Use this screen to specify which system events should be recorded and where the log messages should be saved Click Logging gt Settings in the navigation panel to view the screen as shown Figure 54 Logging Logging Help Add Server Logging Target Click to view logs Error Warning Info Debug Delete RAM vi VM IM CLEAR Flash v v CLEAR Server SysLogServer 192 168 1 56 514 DELETE Facility locald Max nu
42. 2 History Control screens to view and define the statistical sampling of data from activity in your network Statistical sampling is controlled by defining the interface port polling period and the number of samples to be taken per polling period Use the 2 History Statistics screens to view the results of statistical sampling on the ports 19 4 1 RMON History Control Overview Click RMON Lite in the navigation panel and select 2 History Control to open the RMON History Control Overview screen Use this screen to view and configure RMON history configuration settings Figure 76 RMON History Control Overview RMON Lite RMON MIB Table 2 History Control Apply Help RMON History Control Overview Refresh Help Data Bucket Bucket Interval j ari H Source il Requested D Granted l Sec seine 1 Panot 39 S0 e007 monitor Disabled 2 Port 02 50 50 1800 monitor Disabled 3 Port 03 50 50 1800 monitor Disabled 4 Pon or oO RNC AP C NND ae issues 5 Port 05 50 50 1800 monitor Disabled 6 Port 06 50 50 1800 monitor Disabled Z P The following table describes the labels in this screen Table 56 RMON History Control Overview LABEL DESCRIPTION RMON MIB Use this drop down list box to select the MIB table you want to view Click Table Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON History Control Overvi
43. 21 reset 48 reset button 27 40 resetting 40 restart 48 restoring configuration 40 46 RMON alarm group 129 event group 132 history group 124 statistics group 122 RMON Lite 121 Round Robin Scheduling 67 rubber feet 23 S safety certifications 145 safety warnings 7 save configuration 39 SCCP Skinny Client Control Protocol 93 Session Initiation Protocol SIP 93 short cable fault 88 Simple Network Management Protocol SNMP 105 Simple Network Management Protocol see SNMP SIP Session Initiation Protocol 93 Skinny Client Control Protocol SCCP 93 SNMP 105 agent 105 and MIB 106 authentication 110 group 109 management model 105 manager 105 MIB 106 network components 105 GS 1524 GS 1548 User s Guide Index 170 object variables 106 protocol operations 106 setup 107 traps 107 user 110 versions supported 105 SNMP Simple Network Management Protocol 105 SNMP traps 107 SP Strict Priority queuing 67 static MAC address 83 static MAC forwarding 83 85 status 36 LED 30 port details 48 54 VLAN 58 60 subnet 153 subnet mask 154 subnetting 156 switch lockout 40 switch reset 40 switching 146 147 syntax conventions 5 system control 147 system status 43 T tagged VLAN 57 trademarks 163 transceiver installation 29 removal 29 traps SNMP 107 trunk group 63 trunking 21 63 146 147 configuration 64 distribution criterion 63 Type of Service ToS 72 V ve
44. 32 33 62 63 3 64 65 94 95 4 96 97 126 127 5 128 129 158 159 6 160 161 190 191 7 192 193 222 223 8 224 225 254 255 Subnet Planning The following table is a summary for subnet planning on a network with a 24 bit network number Table 82 24 bit Network Number Subnet Planning NOST ORS OWED SUBNET MASK NO SUBNETS NO HOSTS PER 1 255 255 255 128 25 2 126 2 255 255 255 192 26 62 3 255 255 255 224 27 8 30 4 255 255 255 240 28 16 14 5 255 255 255 248 29 32 6 6 255 255 255 252 30 64 2 7 255 255 255 254 31 128 1 The following table is a summary for subnet planning on a network with a 16 bit network number Table 83 16 bit Network Number Subnet Planning NO BORROWED NO HOSTS PER HOST BITS SUBNET MASK NO SUBNETS SUBNET 1 255 255 128 0 17 2 32766 2 255 255 192 0 18 4 16382 GS 1524 GS 1548 User s Guide Appendix A IP Addresses and Subnetting Table 83 16 bit Network Number Subnet Planning continued NOST Ens OWED SUBNET MASK NO SUBNETS NOS IS PER 3 255 255 224 0 19 8 8190 4 255 255 240 0 20 16 4094 5 255 255 248 0 21 32 2046 6 255 255 252 0 22 64 1022 7 255 255 254 0 23 128 510 8 255 255 255 0 24 256 254 9 255 255 255 128 25 512 126 10 255 255 255 192 26 1024 62 11 255 255 255 224 27 2048 30 12 255 255 2
45. 4 printable ASCII characters Spaces are not allowed Apply Click this to save the settings to the Switch Event Click this to go to the RMON Event Overview screen Overview 19 7 RMON Event Log Overview Use the RMON Event Log Overview screen to view the event log entries generated on the Switch All the entries in this table are generated by the RMON Lite probe when the event value meets the risingEventThreshold or fallingEventThreshold assigned in the RMON Alarm screens Select 9 Event Log in the RMON MIB Table drop down list box in any RMON Lite screen to view the screen as shown Figure 84 RMON Event Log Overview RMON Lite RMON MIB Table Event Index 1 9 Event Log d RMON Event Log Overview Event Type Apply Help Refresh Help Owner monitor Last Time Sent None OD OH OM 0S The following table describes the labels in this screen Table 64 RMON Event Log Overview LABEL DESCRIPTION RMON MIB Use this drop down list box to select the MIB table you want to view Click Table Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON Event Log Overview screen Event Index This field displays an event index number Event Type This field displays the action taken when this event occurred None Log Trap or Log and Trap GS 1524 GS 1548 User s Guide Chapter 19 RMON Lite
46. 48 has 48 auto negotiating auto crossover RJ 45 Gigabit Ethernet ports The speed of the Gigabit Ethernet ports can be 10 Mbps 100Mbps or 1000Mbps and the duplex mode can be half duplex at 100 Mbps or full duplex An auto negotiating port can detect and adjust to the optimum Ethernet speed 100 1000Mpbs and duplex mode full duplex or half duplex of the connected device 7 An auto crossover auto MDI MDI X port automatically works with a straight through or crossover Ethernet cable 3 1 1 1 Default Ethernet Settings The factory default negotiation settings for the Ethernet ports on the Switch are Speed Auto Duplex Auto Flow control Off 3 1 2 Mini GBIC Slots There are four mini GBIC Gigabit Interface Converter slots for mini GBIC transceivers A transceiver is a single unit that houses a transmitter and a receiver The Switch does not come with transceivers You must use transceivers that comply with the SFP Transceiver Multisource Agreement MSA See the SFF committee s I NF 8074i specification Rev 1 0 for details GS 1524 GS 1548 User s Guide Chapter 3 Hardware Overview You can change transceivers while the Switch is operating You can use different transceivers to connect to Ethernet switches with different types of fiber optic connectors Type SFP connection interface Connection speed 1 Gigabit per second Gbps Note To avoid possible eye injury do not look into an operating fiber
47. 55 240 28 4096 14 13 255 255 255 248 29 8192 6 14 255 255 255 252 30 16384 2 15 255 255 255 254 31 32768 1 Configuring IP Addresses Where you obtain your network number depends on your particular situation If the ISP or your network administrator assigns you a block of registered IP addresses follow their instructions in selecting the IP addresses and the subnet mask If the ISP did not explicitly give you an IP network number then most likely you have a single user account and the ISP will assign you a dynamic IP address when the connection is established If this is the case it is recommended that you select a network number from 192 168 0 0 to 192 168 255 0 The Internet Assigned Number Authority IANA reserved this block of addresses specifically for private use please do not use any other number unless you are told otherwise You must also enable Network Address Translation NAT on the Switch Once you have decided on the network number pick an IP address for your Switch that is easy to remember for instance 192 168 1 1 but make sure that no other device on your network is using that IP address The subnet mask specifies the network number portion of an IP address Your Switch will compute the subnet mask automatically based on the IP address that you entered You don t need to change the subnet mask computed by the Switch unless you are instructed to do otherwise GS 1524 GS 1548 Us
48. 8 User s Guide Contents Overview Contents Overview Introduction and Hardware Overview eeeseeeeeeeeeeeeeeeeee nnne nennen nnn nenne nnne nnn 17 Getma o TDI TOON SiTe h oeste dp i bar Fra se ene bob oot ue bo Go an dn 19 Hardware nersllston and COoRSEQIGDE 2 issadateszcnsidip een eura cad rtc Fase qudd kia 23 FARR Ova iewi mm 27 Basic amp Advanced Selling xcsccisesssscsccscseciserecsessscettnietsasaecsvermusestaraassiiatevucinertenicceiveiaaticiasas 33 Hl 371 Peer 35 IU MM TET T UTT 43 wolet rnuipscd m EU cami reiidadeemiaaanenaiaed 49 ey SUE ITIL Po StalislioB sue ope Ua aen ep aaO pba tend baa bbc n dila den PDA 53 SURDI I TIR by Hinr e 63 PINTOU e T Q 65 po 67 Forn Rate Liimitand Silor ES E 77 Layer 2 L2 IE SIS EET TE OL DET 83 ae EPI ep scie TERR D acre 87 Auto Deals Serge DIS aco src dapi aac OR plaid o bb uc pea ania a bea ag 89 ZU VOIE eset ss ashe gee E Lisa olac a ton wac ela vad ached Aad aceasta Sua I Ek ba ol an nU a Ee dau 93 Management and Troubleshooting 1eeeeeeeeeeeeeeeeeeeeeen eene 95 mca rec Lt PORT TD DT 97 c ng 105 REON 8 MT martian A penal prada E 121 UWRF a dled ok bale ech ceed oes LT 137 Higter loc j st
49. AU ENIRO RON RAE KR RR 27 cw cR UM LI CL NN I T nesae 27 B Ethernet PONS orunda aan RES 28 RP Sb SIDES srra E 28 oc ne Pete I SELON sarina aae aden iexsubedadaveuuensteardsativa tsk guneonernamsatinds 30 SOLBDS quubusesnditiodtccit e aM IN bte NE cose banat iMi cac mide Savaatepeeremtnceeals 30 c MC c UP em 31 24 1 Power Goneelf cio S 32 GS 1524 GS 1548 User s Guide Table of Contents Part Il Basic amp Advanced Settings eeeessss 33 Chapter 4 The Wep 4 X 35 ENIM 35 Ae cu njbae We 35 A Tie Saus aI anaE E N AE 36 do MO EY PANEI sinaoni A E A Ne aae 37 Bo TNO Navigation Paneb MU a 453 Dhange VOU PSSBWDIB oisnsesedetiecmeds erben E Quat Oa pA E rn za rad gees 39 249 0ng Yor Lao NUIT essen eter dU eU eU Eeer M aspe YR de ess TAa 39 AS SATE LOGKOUT T 40 225 MesBIEH INE QUIC eden uesiasceatus dnsvuad iA A eua bunc Drs d andi Ema sn 40 47 Logging Oui ai the Web Contguralor 2eueuisaeseseiddaghieeese eds bec ndndsebretuddgtbber didis bep apris d PEU DIS 41 zc d T aktanerada Sua tuasdaerneuaa Batata aa eateries hebrnes iad pabene aaa eetnardaa pena ae 41 Chapter 5 1 X O 43 ETSI OS rh win Sgn a ia sess asd ie sabes ced OR qe ea Suna dead LE roc d 43 MES rds steel ee 44 DLL Lor E025 TRUIB PP 3ssadcietpucdctkno T pn aru E XR tuba per casar pn En ES 45 S
50. Add Server Logging Add Server Help Name Max 12 characters IP Address Port 514 Facility LocalO Add The following table describes the labels in this screen Table 34 Logging Add Server LABEL DESCRIPTION Name Enter a short descriptive name for identifying this server You can use 1 12 printable ASCII characters Spaces are allowed P Address Enter the IP address in dotted decimal notation of the syslog server you want to add Port Specify the UDP port for sending log messages to this server Typically port 514 is used with syslog Facility The log facility allows you to send logs to different files in the syslog server Refer to the documentation of your syslog server for more details Add Click Add to save this entry to the Switch and return to the Logging screen 17 4 Viewing RAM and Flash Logs Use these screens to view or export RAM or Flash logs Click RAM Logs or Flash Logs in the navigation panel to view the Logs RAM or Logs Flash screen GS 1524 GS 1548 User s Guide Chapter 17 Event Logging Note The RAM Logs and Flash Logs screen contain the same fields as the Logs RAM or Logs Flash screen in the following figure Figure 56 Logs RAM Flash Logs RAM rax Expert Help Page 1 of 2 Goto page 1 2 Next No T Index Level Category ji Time Message 1 88 INFO RMON 2006 5 1 1 30 03 Reclaim
51. CC AA 11 11 11 1A 1 8 Delete DELETE Address Lookup MAC 00 00 00 00 00 0C VID fi Lookup Help The following table describes the labels in this screen Table 25 L2 Management LABEL DESCRIPTION Address Enter the MAC address and the corresponding Vlan ID in the MAC and VI D Lookup fields respectively Click Lookup to search for the MAC address entry in the MAC address table Static This section allows you to add or delete static MAC address entries Address ADD Click this to add a static MAC address entry to the MAC address table GS 1524 GS 1548 User s Guide Chapter 13 Layer 2 L2 Management Table 25 L2 Management continued LABEL DESCRIPTION Item This is the index number of the static MAC address entry Source MAC This field displays the MAC address of a manually entered MAC address entry VID This field displays the VID of a manually entered MAC address entry Port This field displays the port number of a manually entered MAC address entry Delete Click DELETE to remove this manually entered MAC address entry from the MAC address table 13 1 1 Add a Static MAC Address Entry Click Add in the L2 Address Management screen to display the configuration screen as shown Figure 48 Add a Static MAC Entry Add Static L2 Address Static MAC Address mc RK VLAN ID Port NUM 1 Add Address Help The foll
52. Environmental Specifications LEDs Per Switch PWR Per Gigabit port LNK ACT FDX Per mini GBIC port LNK ACT Per 100 Mbps Ethernet port LNK ACT FDX Dimensions Standard 19 rack mountable GS 1524 438 x 215 x 44 45 mm GS 1548 441 x 311 x 45 mm Device Weight GS 1524 3 Kg GS 1548 4 063 Kg Temperature Operating 09 C 509 C 322 F 122 F Storage 402 C 702 C 409 F 1582 F Humidity 10 95 non condensing Power Supply GS 1524 AC 100 240V 50 60Hz 0 9A max internal universal power supply GS 1548 AC 100 240V 50 60Hz 1 5A max internal universal power supply Wire Gauge Specifications Ground Wire 18 AWG or larger Power Wire 18 AWG or larger Safety EN 60950 1 IEC 60950 1 EMC FCC Part 15 Class A CE EMC Class A GS 1524 GS 1548 User s Guide Chapter 22 Product Specifications Table 70 General Product Specifications Interface GS 1524 20 1000BASE T RJ 45 Gigabit Ethernet ports GS 1548 44 1000BASE T RJ 45 Gigabit Ethernet ports 4 Dual personality interfaces each consisting of one 1000BASE T RJ 45 Gigabit Ethernet port and one Mini GBIC Small Form Factor Pluggable SFP slot Auto negotiation Auto MDIX Compliant with IEEE 802 3ad u x Back pressure flow control for half duplex Flow control for full duplex IEEE 802 3x Layer 2 Bridging 8K MAC addresses id Static MAC address forwarding by destination 8 static entries
53. File Path text box or click Browse to locate it After you have specified the file click Upgrade After the firmware upgrade process is complete see the System gt Status screen to verify your current firmware version number 5 3 1 System Restart Reset Click System gt Restart Reset to perform a system restart keep current configuration or a system reset restore the Switch s default configuration settings Follow the instructions in the screen below to reset or restart the Switch Figure 28 System Restart Reset Restart Reset The Reset to Factory Defaults will reset the switch to Factory Defaults All configuration information including the IP address will be removed and the connectivity to the switch will be lost The Restart Switch option will restart the switch with current configuration Restart Switch C Resetto Factory Defaults Submit GS 1524 GS 1548 User s Guide Port Settings This chapter describes how to view and configure the port settings on the Switch 6 1 Port Status Use this screen to view Switch port settings Click Port in the navigation panel to display the Port Status screen Figure 29 Port Status PORT Status Refresh Help Link Speed Flow Link Speed Flow Rut Status Duplex Control PMID qon Status Duplex Control pe 01 Down 1 13 Down 1 02 Down 1 14 Down 1 03 D
54. Firmware Version 1 12 AYD 0 b1 Upgrade Build Date Thu May 17 18 43 07 2007 MAC Address N A IP Address 111 11 11 111 Subnet Mask 255 255 255 0 Gateway 111 11 11 254 L2 Table Aging Disabled mom Backup settings Restore settings non UE 2EVEVE JE JE JEDE JE JT JE JE 7E 7 4 8 Help The web configurator s online help has descriptions of individual screens and some supplementary information Click the Help link from a web configurator screen to view an online help description of that screen GS 1524 GS 1548 User s Guide Chapter 4 The Web Configurator GS 1524 GS 1548 User s Guide System This chapter describes the system screens 5 1 System Screen The home screen of the web configurator displays general system information and allows you to perform system maintenance Click System gt Status in the navigation panel to view device specific information such as system name firmware version and so on Figure 21 System System Help DeviceName 65 1524 Firmware Version V1 12 4YD 0 b1 Upgrade Build Date Thu May 17 18 43 07 2007 MAC Address N A IP Address 111 11 11 111 Subnet Mask 255 255 255 0 Gateway 111 11 11 254 L2 Table Aging Disabled Backup settings Restore settings The following table describes the labels in this screen Table 5 System LABEL DESCRIPTION Device Name This read
55. GS 1524 GS 1548 Web Managed GbE Switch Default Login Details IP Address http 192 168 1 1 User Name admin Password 1234 Firmware Version 1 12 Edition 2 5 2009 ZyXEL www zyxel com Copyright 2009 ZyXEL Communications Corporation About This User s Guide About This User s Guide Intended Audience This manual is intended for people who want to configure the Switch using the web configurator You should have at least a basic knowledge of TCP IP networking concepts and topology Related Documentation Quick Start Guide The Quick Start Guide is designed to help you get up and running right away It contains information on setting up your hardware connections Web Configurator Online Help Embedded web help for descriptions of individual screens and supplementary information Note It is recommended you use the web configurator to configure the Switch Supporting Disc Refer to the included CD for support documents ZyXEL Web Site Please refer to www zyxel com for additional support documentation and product certifications User Guide Feedback Help us help you Send all User Guide related comments questions or suggestions for improvement to the following address or use e mail instead Thank you The Technical Writing Team ZyXEL Communications Corp 6 Innovation Road II Science Based Industrial Park Hsinchu 300 Taiwan E mail techwriters zyxel com tw Customer Support
56. Guide Chapter 17 Event Logging 17 5 Searching RAM and Flash Logs Use these screens to search RAM and Flash logs based on level and category Click the Search link in the Logs RAM or Logs Flash screen to view the screen as shown Figure 57 Searching RAM Flash Logs Criterion Logs Search Level Category I Error I Warning I Info I Debug G an C GENERAL C SYSTEM C KERNEL C INIT C DEVICE C NETWORK C PERSISTENCE C APPL C WEB C HTTPD C TELNETD C SNMPD C RMON C CABLEDIAG C VLAN C PORT Or C MIRROR C RATE C Qos C AGING C TRUNKING C AUTODOS C AUTOVOIP C DYNAMICARP Submit Export GS 1524 GS 1548 User s Guide Chapter 17 Event Logging The following table describes the labels in this screen Table 36 Searching RAM Flash Logs LABEL DESCRIPTION Level Select the severity level s of the log events you want to find The possible severity levels are Error to search system failures such as events which will cause the Switch to malfunction and events such as invalid user input in the web configurator Warning to search non critical errors on the Switch The Switch will continue to function when warnings are recorded Info to search regular system events such as configuration changes or logins Debug to search events which can be helpful for engineering debugging of the Switch s function This field is not recommended to track
57. IE RRD SSE eene EE 45 E Pese aN E oa N Cobol Latet AE TEA 46 S2 SV SIN Change PASSW rr EET 47 Did PINTER Upgrade scrissi TODA 47 SO SPR RES aR mc 48 Chapter 6 PON SEINO ee ated 49 l PO en 1 LE erinan G 49 studi Neun dt 50 Chapter 7 SYSte and Port TAGS O 53 PEE E E NM E Tete 53 ruri rM cm 53 peril cupo cH T 54 Chapter 8 iso EC E E 57 8 1 Introduction to IEEE 802 10 Tagged VLANS iusserit retia deren nn tnde ees qnan ehe in ada 57 8 1 1 Forwarding Tagged and Untagged Frames meme a 57 BO E VLAR aaan a Ta aa ind odo eat UL E dE 58 12 GS 1524 GS 1548 User s Guide Table of Contents 8 2 1 IEEE 302 10 VLAN Seregi iuzeoiniieniiddber borde bara db cene baa a nca cendi nai 58 9 2 2 Create IEEE 202 10 VLAN BECBBII 1s diu derbxx ova ntaau nouenn aE ENARA EXE cU DR s RE oar OE 59 Bac Edit IEEE 802 TO VLAM GOGEN acucisseriuelpte Spes psa o ctcsonner etc r pee ceci pa E pia ea tor drQa 60 Chapter 9 iita me 63 SER n EEE a MN UU MM 63 SN SEM RALIS TO SEES 63 B2 Munk Goling GSPBBIT aisceinnieivesiiee eb QU ERR UD CR GERE TL UAR An aaa 64 Chapter 10 POMPE ESE NN RETE C LE 65 DNE dusk up Wm EE LE IESU ESSET 65 Chapter 11 6o M 67 VAS CEE 67 11 1 1 Weighted Round Robin WAR pect searcubed avin sensted
58. Queuing algorithms allow switches to maintain separate queues for packets from each individual source or flow and prevent a source from monopolizing the bandwidth 11 1 1 Weighted Round Robin WRR Round Robin scheduling services queues on a rotating basis and is activated only when a port has more traffic than it can handle A queue is given an amount of bandwidth irrespective of the incoming traffic on that port This queue then moves to the back of the list The next queue is given an equal amount of bandwidth and then moves to the end of the list and so on depending on the number of queues being used This works in a looping fashion until a queue is empty Weighted Round Robin WRR scheduling uses the same algorithm as round robin scheduling but services queues based on their priority and queue weight the number you configure in the queue Weight field rather than a fixed amount of bandwidth WRR is activated only when a port has more traffic than it can handle Queues with larger weights get more service than queues with smaller weights This queuing mechanism is highly efficient in that it divides any available bandwidth across the different traffic queues and returns to queues that have not yet emptied GS 1524 GS 1548 User s Guide Chapter 11 QoS 11 1 2 Strict Priority Strict priority scheduling singles out the highest priority queue and ensures all queued traffic in this queue is transmitted before servicing the lower pr
59. S Setting screen to view the following screen Figure 39 Change Number of Queues Apply Change Number of Queues Help Number of Queues 4 Select the number of queues from the Number of Queues drop down list box and click Apply to save your settings to the Switch 11 4 Advanced QoS Settings The following sections describe additional methods for setting priority for incoming packets on the ports The Switch allows you to choose one of the following methods GS 1524 GS 1548 User s Guide Chapter 11 QoS Note Advanced QoS methods only affect the internal priority queue mapping for the Switch The Switch does not modify the IEEE 802 1p value for the egress frames 11 4 1 Port Based QoS You can configure the Switch to assign a IEEE 802 1p priority to packets based on the ingress incoming port of the packet Select Port Based QoS in the QoS Enhancement Setting screen to view the following screen Figure 40 Port Based QoS QoS Enhancement Setting Help Mode Port Based QoS 7 Change Priority Port hx Priority o Change Port Priority 1 o 02 0 i s 04 0 05 NN 06 D 07 0 E 3 09 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 D 18 0 19 0 20 0 21 0 22 0 23 0 24 0 Apply Change Settings GS 1524 GS 1548 User s Guide Chapter 11 QoS The following table describes the
60. SCRIPTION Community An SNMP community string is a text string that acts as a password It is String used to authenticate messages that are sent between the management station the SNMP manager and the device the SNMP agent The community string is included in every packet that is transmitted between the SNMP manager and the SNMP agent Type the community string for this community You can use 1 33 any printable character Spaces are allowed Remote Specify the IP address of the remote SNMP management station in dotted Station IP decimal notation Group Name Select the SNMP group you want to belong to this community Create Click this to add this SNMP community to the Switch Cancel Click this to go back to the main SNMP Community screen without saving your changes GS 1524 GS 1548 User s Gu Chapter 18 SNMP 18 4 2 SNMP Community Modify Click on the Community I D number or select a Community ID from the Community I D drop down list box in the SNMP Community screen to modify the settings of an existing community Figure 69 SNMP Community Modify SNMP Community Help Community ID 1 Remove This Community Display All Community Community String public Remote Station IP 0 0 0 0 Group Name e Apply The following table describes the labels in this screen Table 49 SNMP Community Modify LABEL DESCRIPTION Community ID This field indicates which community you are modifying Click on
61. Tere eee DEUX a Rd E arnt eer 109 TOS BNIMP Gro BOO icici anire ana Rate RE AE EENS 110 TONNE ET air oan tado RH bL nenas ebd dd 110 158 5 FONNMP Loic ORBE LestsensdbceMitediie qiie doo reM i deqoi Ea Ie 112 T2832 SRIMP User BOE ironie rcu i epu ete EHE E rr acsi gE SES EN ER cates 113 DP NII doniencusurt scd duke diaeta aa Ud ER Cra Eo Case e bd 114 184 0 SNMP Com Greate scsbcet prediis bebe R R ep Y ar E Een RP PUN 115 15 4 2 SNMP Community MOIY qaasi rt bE Ee S prp ch ap oi LaadeC Rl Rb rne abo Rat es 116 GS 1524 GS 1548 User s Guide Table of Contents 15 5 SPI OUNCE ascsccbebbcdisa appa e ebbe cru eb bob adn P Poir a oda aspe 116 His eerie TRO ru ERREUR EU TS 117 1585 1 SNMP Trap Stalo GRAS 2cetiicccsee a Re Success bnetecr abe ei cuc e pae pdadsE 119 1588 2 SNMP Trap staton Mody uec aac tea bor rb Rr a bes s arg cien 119 Chapter 19 0 08 T Aa Y O 121 DNE P aa ies ire rae rU E 121 TELE FO Sralialles LONBIVIBW siad en PHP pan ii adire as eb erp c repe rap PR LRER Rd 122 193 RMON Lite SSCS PO 1 eias tops nates octauas cauta dau ORE ecd d as n a aU dae i 123 QUEM p sp EELHS C HIM EE a E A Ea 124 19 4 1 RMON History Controls DVerVIBW eese ree nere n a a RR 125 1842 RMON History Control Bigelly iouuadstece teste pontus bend ia lage nbesk in ook pora a aa 126 19 4 3 RMON History Statistics OVErviEW 1ensisetececipe E aiaa 127 19 4 4 RMON His
62. You can click Retry to locate the proper configuration file GS 1524 GS 1548 User s Guide Chapter 5 System 5 2 System Change Password Use the Change Password screen to change the administrator username and password for the Switch Click System gt Password to view the screen as shown Figure 26 System Password Change Password Help Old Password New Password Confirm New Password Apply The following table describes the labels in this screen Table 7 Change Password LABEL DESCRIPTION Old Password Type the existing system password 1234 is the default password when shipped New Password Enter your new system password Enter up to 15 alpha numeric characters spaces are allowed Confirm New Retype your new system password for confirmation Password 5 3 Firmware Upgrade Make sure you have downloaded and unzipped the correct model firmware and version to your computer before uploading to the device Be sure to upload the correct model firmware as uploading the wrong model firmware may damage your device GS 1524 GS 1548 User s Guide Chapter 5 System From the System screen click Upgrade in the Firmware Version field to display the screen as shown next Figure 27 Firmware Upgrade Firmware Upgrade File to upgrade Browse Upgrade Type the path and file name of the firmware file you wish to upload to the Switch in the
63. allows you to set limits for incoming and outgoing traffic on the ports The broadcast storm control feature helps prevent broadcast multicast or unknown unicast traffic from flooding your network Port Mirroring Port mirroring allows you to copy traffic going from one or all ports to another or all ports in order that you can examine the traffic from the mirror port the port you copy the traffic to without interference Link Aggregation Link aggregation trunking is the grouping of physical ports into one logical higher capacity link You may want to trunk ports if for example it is cheaper to use multiple lower speed links than to under utilize a high speed but more costly single port link Device Management Use the web configurator to easily configure the rich range of features on the Switch Firmware Upgrade Download new firmware when available from the ZyXEL web site and use the web configurator to put it on the Switch Note Only upload firmware for your specific model Configuration Backup amp Restoration Make a copy of the Switch s configuration and put it back on the Switch later if you decide you want to revert back to an earlier configuration Auto DoS The Automatic Denial of Service DoS attack detection and prevention feature helps protect you from hackers trying to disrupt or shut down your network Auto VoIP The Automatic VolP feature grants the highest priority to V
64. ass A digital switch pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a commercial environment This device 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 device 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 CE Mark Warning 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 Taiwanese BSMI Bureau of Standards Metrology and Inspection A Warning AEE jee ARS alee TEARS ERG BRR ETE TSI FE FASS RES SASR Notices Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This Class A digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe A est conforme la norme NMB 003 du Canada CLASS 1 LASER PRODUCT APPAREIL A LASER DE CLASS 1 PRODUCT COMPLIES WITH 21 CFR 1040 10 AND 1040 11 PRODUIT CONFORME SELON 21 CFR 1040 10 ET 1040 11 GS 1524 GS 1548 User s Guide Appendix B Legal Information Viewing Certifications 1 Goto http www zyxel com 2 Sel
65. bits are zeroes SYN with port 1024 SYN packets with source port less than GS 1524 GS 1548 User s Guide 1024 Chapter 15 Auto Denial of Service DoS Table 29 DoS Attack Summary ATTACK DESCRIPTION Smurf Attacks This attack uses Internet Control Message Protocol ICMP echo requests packets pings to cause network congestion or outages Ping Flooding This attack floods the target network with CMP packets SYN SYN ACK This attack floods the target network with SYN or SYN ACK Flooding packets 15 2 Global Auto DoS Attack Prevention Use the Global Auto DoS Attack Prevention screen to configure DoS attack prevention settings for the Switch Click Auto DoS in the navigation panel to open the following screen Figure 51 Global Auto DoS Attack Prevention Global Auto DoS Attack Prevention Help Advanced Denial of Serice Prevention Prevent Land Attacks M Prevent Blat Attacks Scan SYNFIN r Deny Xmascan Prevent NULL Scan Attacks Deny SYN with sport 1024 Select All Apply The following table describes the labels in this screen Table 30 Global Auto DoS Attack Prevention LABEL DESCRIPTION Advanced Click this link to configure advance Auto DoS settings Denial of Select the types of attacks you want to prevent or choose Select All to Service prevent all types of attacks and scans supported by the Switch See Prevention Secti
66. ble 37 Logs Search Results LABEL DESCRIPTION Index This field indicates the index number of the log This number doesn t change even if some logs are deleted from the Switch due to memory limits The index number increments by one for each recorded event The largest number represents the most recent log event Level This field displays the severity level of the log event The possible severity levels are Error Warning Info and Debug Category This field displays what category the log entry fits The categories are based on software and hardware features of the Switch For example the category AUTODOS records events which deal with the Auto Denial of Service features you set up and the category SYSTEM records events which deal with the overall operation of the Switch Time This field specifies the time when the Switch recorded the log event The Switch resets its internal clock when it is restarted to 2006 5 1 00 00 00 Message This field displays an explanation for the log entry GS 1524 GS 1548 User s Guide SNMP This chapter describes how to user Simple Network Management Protocol SNMP to manage and monitor the Switch 18 1 About SNMP Simple Network Management Protocol SNMP is an application layer protocol used to manage and monitor TCP IP based devices SNMP is used to exchange management information between the network management system NMS and a network element NE A manager stati
67. ct Enabled to allow this group to collect information from this Switch Write select Enabled to allow this group to create or edit MIBs Create Click this to add this SNMP group to the Switch Note A maximum of ten groups can be created on the Switch Cancel Click this to go back to the main SNMP Group screen without saving your changes GS 1524 GS 1548 User s Guide Chapter 18 SNMP 18 2 2 SNMP Group Modify Click on the Group I D number or select a Group ID from the Group ID drop down list box in the SNMP Group screen to modify the settings of an existing group Figure 63 SNMP Group Modify SNMP Group Group ID 1 Remove This Group Display All Group Group Name Group1 Help Apply SNMP Version SNMPvi v Authentication C Enabled Disabled Access Read Enabled C Disabled Write Enabled Disabled The following table describes the labels in this screen Table 43 SNMP Group Modify LABEL DESCRIPTION Group ID This field indicates which group you are modifying Click on Remove This Group to delete this group configuration from the Switch Click on Display All Group to view the main SNMP Group screen Group Name Edit the name for this SNMP group SNMP Version Specify the SNMP version this group uses to manage the Switch Authenticatio n This field is only editable if you select SNMPv3 in the SNMP Version field Se
68. ct ZyXEL s Service Center for your Return Material Authorization number RMA Products must be returned Postage Prepaid It is recommended that the unit be insured when shipped Any returned products without proof of purchase or those with an out dated warranty will be repaired or replaced at the discretion of ZyXEL and the customer will be billed for parts and labor All repaired or replaced products will be shipped by ZyXEL to the corresponding return address Postage Paid This warranty gives you specific legal rights and you may also have other rights that vary from country to country Registration Register your product online to receive e mail notices of firmware upgrades and information at www zyxel com for global products or at www us zyxel com for North American products GS 1524 GS 1548 User s Guide Appendix B Legal Information GS 1524 GS 1548 User s Guide Index A adding VLANs 59 Address Resolution Logic ARL table 45 Address Resolution Protocol ARP 137 alternative subnet mask notation 156 applications backbone 19 bridging 20 IEEE 802 1Q VLAN 21 switched workgroup 21 ARL Address Resolution Logic table 45 ARP how it works 137 viewing 138 139 140 ARP Address Resolution Protocol 137 auto DoS prevention 90 configuration 90 auto VoIP configuration 94 feature explained 93 auto crossover ports 28 automatic Denial of Service DoS prevention 89 auto negotiating ports 28 back u
69. d to by the size of the network number part the bits with a 1 value For example an 8 bit mask means that the first 8 bits of the mask are ones and the remaining 24 bits are zeroes Subnet masks are expressed in dotted decimal notation just like IP addresses The following examples show the binary and decimal notation for 8 bit 16 bit 24 bit and 29 bit subnet masks Table 74 Subnet Masks BINARY 1ST 2ND 3RD 4TH DECIMAL OCTET OCTET OCTET OCTET 8 bit mask 11111111 00000000 00000000 00000000 255 0 0 0 16 bit 11111111 11111111 00000000 00000000 255 255 0 0 mask 24 bit 11111111 11111111 11111111 00000000 255 255 255 0 mask 29 bit 11111111 11111111 11111111 11111000 255 255 255 24 mask 8 Network Size The size of the network number determines the maximum number of possible hosts you can have on your network The larger the number of network number bits the smaller the number of remaining host ID bits An IP address with host IDs of all zeros is the IP address of the network 192 168 1 0 with a 24 bit subnet mask for example An IP address with host IDs of all ones is the broadcast address for that network 192 168 1 255 with a 24 bit subnet mask for example GS 1524 GS 1548 User s Guide 185 Appendix A IP Addresses and Subnetting As these two IP addresses cannot be used for individual hosts calculate the maximum number of poss
70. e MIB table you want to view Click Table Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON Event Overview screen Create new Click this to configure new events on the Switch Event Index This field displays an event index number Click this number to edit the event entry Description This field displays a description of the event Type This field displays the event type 1 None 2 Log 3 SNMP Trap 4 Log and Trap Community This field displays the community or SNMP trap Last Time This field indicates the value of system up time on the Switch when this Sent event was last generated It appears in the following format XXD XXH XXM XXS where XX stands for a number and D stands for days H for hours M for minutes and S for seconds Owner This field displays the name of the creator of this entry Delete Click this to remove the selected event configuration GS 1524 GS 1548 User s Guide Chapter 19 RMON Lite 19 6 1 RMON Event Create New Event Use the RMON Event Create and the RMON Event Modify screens to configure RMON events Click Create new Event in the RMON Event Overview screen to view the screen as shown You can also click an event index number in the RMON Event Overview screen to edit an existing event configuration Note The RMON Event Modify screen contains the same fields as the RMON Event Create screen shown as Figure 83
71. e probe triggers an alarm Falling Specify the falling threshold between 0 and 2147483647 When a value Threshold is smaller or equal to this threshold the probe triggers an alarm Rising Event Select an index number of a rising event Falling Event Select an index number of a falling event Owner Enter a descriptive name of the application that creates this entry You GS 1524 GS 1548 User s Guide can use 1 64 printable ASCII characters Spaces are not allowed Chapter 19 RMON Lite Table 61 RMON Alarm Create New Alarm continued LABEL DESCRIPTION Apply Click this to save the settings to the Switch Alarm Click this to go back to the RMON Alarm Overview screen Overview 19 6 RMON Event Overview Use the RMON Event Overview screen to view and delete event entries configured on the Switch Select 9 Event from the RMON MIB Table drop down listbox in the RMON Lite screen to view the screen as shown Figure 82 RMON Event Overview RMON Lite Heb RMON MIB Table 9 Event X RMON Event Overview Refresh Help Create new Event Index Description Type Community Last Time Sent Owner Delete 1 Fire 1 None one DD OH OM os monitor DELETE The following table describes the labels in this screen Table 62 RMON Event Overview LABEL DESCRIPTION RMON MIB Use this drop down list box to select th
72. ect your product on the ZyXEL home page to go to that product s page 3 Select the certification you wish to view from this page ZyXEL Limited Warranty ZyXEL warrants to the original end user purchaser that this product is free from any defects in materials or workmanship for a period of up to two years from the date of purchase During the warranty period and upon proof of purchase should the product have indications of failure due to faulty workmanship and or materials ZyXEL will at its discretion repair or replace the defective products or components without charge for either parts or labor and to whatever extent it shall deem necessary to restore the product or components to proper operating condition Any replacement will consist of a new or re manufactured functionally equivalent product of equal or higher value and will be solely at the discretion of ZyXEL This warranty shall not apply if the product has been modified misused tampered with damaged by an act of God or subjected to abnormal working conditions Note Repair or replacement as provided under this warranty is the exclusive remedy of the purchaser This warranty is in lieu of all other warranties express or implied including any implied warranty of merchantability or fitness for a particular use or purpose ZyXEL shall in no event be held liable for indirect or consequential damages of any kind to the purchaser To obtain the services of this warranty conta
73. entation dependent description of the event Description that activated this log entry Event Log Click this to view the RMON Event Log Overview screen Overview GS 1524 GS 1548 User s Guide 135 Chapter 19 RMON Lite GS 1524 GS 1548 User s Guide Dynamic ARP This chapter describes how to activate dynamic Address Resolution Protocol ARP learning and how to enter static ARP table entries 20 1 ARP Table Overview Address Resolution Protocol ARP is a protocol for mapping an Internet Protocol address IP address to a physical machine address also known as a Media Access Control or MAC address on the local area network An IP version 4 address is 32 bits long In an Ethernet LAN MAC addresses are 48 bits long The ARP table maintains an association between each MAC address and its corresponding IP address 20 1 1 ARP Table Entries The ARP table is populated with MAC and corresponding IP address mappings in two different ways DHCP Snooping The Switch listens to traffic from a DHCP server on a trusted port and learns I P to MAC address bindings by parsing DHCP ACK packets e Static Entries The Switch administrator can enter static IP to MAC address mappings via the web configurator 20 1 2 How Dynamic ARP Works When an incoming ARP packet destined for a host device on a local area network arrives at the Switch the Switch s ARP program looks in the ARP table and if it finds the add
74. entication Notification Apply SNMP Trap Station Help Trap Station ID j Create New Trap Station Trap sm Remote IP Address Community String Click on Trap Station ID to edit or remove The following table describes the labels in this screen Table 50 SNMP Notification LABEL DESCRIPTION Enable SNMP Select this to enable the sending of SNMP traps to a remote SNMP Notification management station Enable Select this to enable logging of failed authentication attempts If an SNMP Authenticatio manager uses an unmatched community string to access an agent the n Notification Switch will send a trap notification Apply Click this to save your settings to the Switch 18 6 SNMP Trap Station SNMP traps are used to send out SNMP notifications of urgent or normal events in the system to external management stations Use the SNMP Trap Station screen GS 1524 GS 1548 User s Guide 11 7 Chapter 18 SNMP to enable the sending of SNMP traps to a remote SNMP management station s Click SNMP Trap Station to view the screen as shown Figure 71 SNMP Trap Station Trap Station ID SNMP Notification 7 Enable SNMP Notification Enable Authentication Notification Trap Station ID j Create New Trap Station Remote IP Address Click on Trap Station ID to edit or remove Help Community String The following table describes the labels in this
75. er s Guide Appendix A IP Addresses and Subnetting Private IP Addresses Every machine on the Internet must have a unique address If your networks are isolated from the Internet running only between two branch offices for example you can assign any IP addresses to the hosts without problems However the Internet Assigned Numbers Authority IANA has reserved the following three blocks of IP addresses specifically for private networks e 10 0 0 0 10 255 255 255 e 172 16 0 0 172 31 255 255 192 168 0 0 192 168 255 255 You can obtain your IP address from the IANA from an ISP or it can be assigned from a private network If you belong to a small organization and your Internet access is through an ISP the ISP can provide you with the Internet addresses for your local networks On the other hand if you are part of a much larger organization you should consult your network administrator for the appropriate IP addresses Regardless of your particular situation do not create an arbitrary IP address always follow the guidelines above For more information on address assignment please refer to RFC 1597 Address Allocation for Private Internets and RFC 1466 Guidelines for Management of IP Address Space GS 1524 GS 1548 User s Guide Legal Information Copyright Copyright 2009 by ZyXEL Communications Corporation The contents of this publication may not be reproduced in any part or as a whole transcribed
76. estanding Installation 1 Make sure the Switch is clean and dry 2 Set the Switch on a smooth level surface strong enough to support the weight of the Switch and the connected cables Make sure there is a power outlet nearby 3 Make sure there is enough clearance around the Switch to allow air circulation and the attachment of cables and the power cord 4 Remove the adhesive backing from the rubber feet 5 Attach the rubber feet to each corner on the bottom of the Switch These rubber feet help protect the Switch from shock or vibration and ensure space between devices when stacking Figure 5 Attaching Rubber Feet GS 1524 GS 1548 User s Guide 23 Chapter 2 Hardware Installation and Connection Note Do NOT block the ventilation holes Leave space between devices when stacking For proper ventilation allow at least 4 inches 10 cm of clearance at the front and 3 4 inches 8 cm at the back of the Switch This is especially important for enclosed rack installations 2 2 Mounting the Switch on a Rack This section lists the rack mounting requirements and precautions and describes the installation steps 2 2 1 Rack mounted Installation Requirements Two mounting brackets Eight M3 flat head screws and a 2 Philips screwdriver Four M5 flat head screws and a 2 Philips screwdriver Note Failure to use the proper screws may damage the unit 2 2 1 1 Precautions Make sure the rack will safely suppo
77. eua RP DESI MM MH OU Are dE 163 167 GS 1524 GS 1548 User s Guide PART Introduction and Getting to Know Your Switch 19 Hardware Installation and Connection Hardware Overview 27 Getting to Know Your Switch This chapter introduces the main features and applications of the Switch 1 1 Introduction Your Switch is an intelligent layer 2 switch with 1000BASE T RJ 45 ports and mini GBIC slots for fiber optic transceivers The Switch features dual personality ports each of which consists of one 1000BASE T RJ 45 port and one mini GBIC slot with either interface active at one time The GS 1524 has 20 1000BASE T RJ 45 ports and four dual personality ports The GS 1548 has 44 1000BASE T RJ 45 ports and four dual personality ports With its built in web configurator managing and configuring the Switch is easy See Chapter 22 on page 145 for a full list of software features available on the Switch 1 1 1 Backbone Application The Switch is an ideal solution for small networks where rapid growth can be expected in the near future The Switch can be used standalone for a group of heavy traffic users You can connect computers and servers directly to the Switch s port or connect other switches to the Switch GS 1524 GS 1548 User s Guide Chapter 1 Getting to Know Your Switch In this example all computers can share high speed applications on the server To expand the network simply add more net
78. ew screen Index This field displays the configuration index number Data Source This is the port of the Switch polled for data Bucket This field displays the number of data samplings the network manager Requested requests the probe to store Bucket This field displays the number of data samplings the probe allows to Granted store Interval sec This field displays the time between data samplings GS 1524 GS 1548 User s Guide 125 Chapter 19 RMON Lite Table 56 RMON History Control Overview continued LABEL DESCRIPTION Owner This field displays the entry creator It displays monitor if the entry was created by the Switch itself Status This field displays Enabled if historical polling is activated on the port It displays Disabled if historical polling is not activated on the port 19 4 2 RMON History Control Modify Use the RMON History Control Modify screen to define the statistical sampling of data from activity in your network Click an index number in the RMON History Control Overview screen to see the screen as shown Figure 77 RMON History Control Modify RMON Lite RMON MIB Table r2 History Control Apply Help RMON History Control Modify Index 1 Disabled Index 1 DataSource Port 01 BucketRequested 50 Interval Sec fi 600 Owner monitor Status C Enable Disable Apply History Control Overview Help The f
79. g Help Mode Tos Based QoS Change Priority TOS o Priority o j Change TOs Priority TOS Priority oo 0 04 0 oF 0 05 0 wz NT 06 D ij 03 D 07 D Apply Change Settings GS 1524 GS 1548 User s Guide Chapter 11 QoS The following table describes the labels in this screen Table 20 ToS Based QoS LABEL DESCRIPTION Mode Select ToS Based QoS to specify mapping rules between ToS priority and IEEE 802 1p priority for incoming packets on the Switch Change Priority Configure the following e TOS Select the ToS priority for which you want to change a priority mapping Priority Select the IEEE 802 1p priority you want to assign to the packets with the ToS priority you specified in the TOS field Click Change to view your changed settings Note The changes are not applied until you click Apply Change Settings TOS Priority This is a summary table of your ToS priority to IEEE 802 1p priority mappings The TOS column indicates the ToS priority of the incoming packets and the Priority column indicates what IEEE 802 1p priority gets assigned to those packets Apply Change Settings Click this when you have reviewed the changes you want to make and you want to save them to the Switch s memory 11 4 6 IP Address Based QoS You can configure the Switch to assign a higher priority to packets coming into the Switch from s
80. ge the state of the ports The possible states are empty This indicates that the port is not part of the VLAN T This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is added U This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is removed Create Click Create to add this VLAN to the Switch Cancel Click Cancel to return to the VLAN status screen without making any changes 8 2 3 Edit IEEE 802 1Q VLAN Screen See Section 8 1 on page 57 for more information on VLANs Click VLAN in the navigation panel to display the IEEE 802 1Q VLAN screen as shown next Figure 35 VLAN Edit VLAN IEEE 802 1Q VLAN Help VLAN ID 2 Remove This VLAN Display All VLAN Al 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 u UUU Not member T Tag egress packets U Untag egress packets iu NH v UjUj U IU U Click the icon under each port to change member state To change state of all ports click the icon under All Apply GS 1524 GS 1548 User s Guide Chapter 8 VLAN The following table describes the labels in this screen Table 14 VLAN Edit VLAN LABEL DESCRIPTION VLAN ID Select which VLAN you want to configure Click Remove This VLAN to remove this VLAN from the Switch Note VLAN 1 cannot be removed Display All
81. ge 140 Item This is the ARP table entry number MAC This is the MAC address of the device connected to the Switch with the Address corresponding IP address below IP Address This is the learned IP address of a device connected to a Switch port with corresponding MAC address above VLAN This is the VLAN number of the device connected to the Switch Type This shows whether the MAC address is dynamic learned by the Switch or static manually entered in the Add Static MAC IP binding screen DELETE Click this to remove this ARP table entry GS 1524 GS 1548 User s Guide Chapter 20 Dynamic ARP 20 4 Adding ARP Table Entries Click ADD in the Dynamic ARP gt ARP Entries screen to open the Add Static MAC 1P binding screen Use this screen to add entries to the ARP table Figure 88 Viewing ARP Table Entries Add Static MAC IP binding Help MAC Address IP Address VLANID hz Add The following table describes the labels in this screen Table 68 ARP Table LABEL DESCRIPTION MAC Address XX XX XX XX XX XX Enter the MAC address in 6 pair hexadecimal format of the network device you want to be allowed to communicate via the Switch An example entry of a MAC address is Oa b1 c2 d3 e4 f5 IP Address Enter the corresponding IP address in dotted decimal notation ex 192 168 1 5 of the network device you want to be allowed to communicate via the Sw
82. gories 101 configuration 98 external 97 overview 97 RAM 97 searching 102 types of events 98 viewing 99 MAC address 137 MAC address learning 83 MAC address table 45 85 maintanence configuration backup 45 firmware 47 restoring configuration 46 Management Information Base MIB 106 Media Gateway Control Protocol MGCP 93 MGCP Media Gateway Control Protocol 93 MIB and SNMP 106 supported MIBs 106 MIB Management Information Base 106 MIBs 147 mini GBIC slots 28 connection speed 29 connector type 29 transceiver installation 29 transceiver removal 29 mirroring ports 65 monitor port 65 mounting brackets 24 MSA MultiSource Agreement 28 configuration 84 GS 1524 GS 1548 User s Guide Index N NAT 161 network management 147 network management system NMS 105 O open cable fault 88 P password 39 port details 54 port mirroring 65 146 147 port security 89 overview 89 port settings 49 50 port statistics 53 ports mirroring 65 speed duplex 50 power connector 32 power supply specifications 145 prioritizing VolP traffic 93 product registration 165 product specification 146 PVI D 58 PVID Priority Frame 58 Q QoS 146 147 QoS Quality of Service 67 Quality of Service see QoS 67 queue weight 67 queuing 67 SP 67 WRR 67 queuing method 67 R RAM logs 97 registration product 165 related documentation 3 Remote Network Monitoring Management Information Base RMON MIB 1
83. gorithm to balance traffic between trunk Criterion members Select the traffic distribution algorithm between trunk member ports Your choices are SA Source MAC Address DA Destination MAC Address SA DA Modify Trunk Configure the following settings to create and modify trunk groups Group Member Trunk id Select the trunk you want to modify or select a trunk id which is not yet configured to create a new trunk group Port Select the port you want to add or delete Add Click this to add the port to the trunk group you selected in the Trunk id field Del Click this to delete the port from the trunk group you selected in the Trunk id field Trunk 1 This summary table lists all the trunks Trunk Group Member column Trunk 6 indicates which ports are members of the trunk group Apply Click Apply to save your changes GS 1524 GS 1548 User s Guide This chapter discusses port mirroring 10 1 Port Mirroring Settings Mirroring Port mirroring allows you to copy traffic flow to a monitor port the port you copy the traffic to in order that you can examine the traffic from the mirrored port without interference Click Mirror in the navigation panel to display the Mirror Setting screen Use this screen to select a monitor port and specify the traffic flow to be copied to the monitor port Figure 37 Mirror Setting
84. gured for SNMP v3 GS 1524 GS 1548 User s Guide Chapter 18 SNMP Table 41 SNMP Group continued LABEL DESCRIPTION Access This field indicates the rights this group has for SNMP management R indicates that this group has read rights and W indicates Write meaning that you can edit the MIBs on the Switch Previous Use these navigation links to browse all of your SNMP groups Page Next Page 18 2 1 SNMP Group Create Use the SNMP Group Create screen to add an SNMP group Click on the Create New Group link in the SNMP Group screen The screen displays as shown Figure 62 SNMP Group Create SNMP Group Help Group Name SNMP Version Authentication Enabled Disabled Access Read Enabled Disabled Write Enabled Disabled Create Cancel The following table describes the labels in this screen Table 42 SNMP Group Create LABEL DESCRIPTION Group Name Specify the name for this SNMP group You can use 1 33 printable characters Spaces are allowed SNMP Version Specify the SNMP version this group uses to manage the Switch Authenticatio This field is only editable if you select SNMPv3 in the SNMP Version n field Select Enabled to force SNMP v3 groups to authenticate with the Switch or select Disabled to deactivate authentication for the SNMP v3 groups For SNMP v1 and SNMP v2c authentication is always disabled Access Read sele
85. he default configuration file 3 2 LEDs The following table describes the LEDs Table 2 LEDs LED STATUS DESCRIPTION PWR Green On The system is turned on Off The system is off SYS Green On The system is on and functioning properly Off The system is off or is malfunctioning GS 1524 GS 1548 User s Guide Chapter 3 Hardware Overview Table 2 LEDs continued LED STATUS DESCRIPTION Gigabit Ethernet Ports GS 1524 ONLY LINK ACT Green On The link to a 10 1000 Mbps Ethernet network is up Amber On The link to a 100 Mbps Ethernet network is up Blinking The port is transmitting receiving data Off The link to an Ethernet network is down FDX Amber On The port is negotiating in full duplex mode Off The port is negotiating in half duplex mode and no collisions are occurring Gigabit Ethernet Ports GS 1548 ONLY 1 48 Green On The link to a 10 1000 Mbps Ethernet network is up Amber On The link to a 100 Mbps Ethernet network is up Blinking The port is transmitting receiving data Off The link to an Ethernet network is down GBIC Slots LNK Green On The port has a successful connection Off No Ethernet device is connected to this port ACT Green Blinking The port is receiving or transmitting data Off The link to an Ethernet network is down 3 3 Rear Panel The following figures show the rear pa
86. he first port without interference QoS Use these screens to configure queuing with associated queue weights for the Switch Rate Use these screens to specify bandwidth limits and storm control limits for the Switch Port Rate Use this screen to cap the maximum bandwidth allowed from specified source s to specified destination s Storm Use this screen to cap the rate of broadcast multicast and unknown Control unicast packets the Switch will allow on individual ports L2 Address Use these screens to view and manage the MAC address table Manageme Use this screen to add delete or look up MAC addresses in the MAC nt address table Display Use this screen to view the entries in the MAC address table Cable Use this screen to perform cable testing on individual ports Diagnostic Auto DoS Use these screens to activate security features against Denial of Service DoS attacks Auto VoIP Use these screens to configure settings that automatically give higher priority to Voice over Internet Protocol Vol P traffic Logging Use these screens to configure log settings and view system logs Settings Use this screen to configure which events the Switch should log RAM Logs Use this screen to configure logs which are saved to volatile memory These logs are cleared when the Switch is rebooted GS 1524 GS 1548 User s Guide Chapter 4 The Web Configurator Table 4 Navigation Panel Links continued LINK DESCRIPTION Flash L
87. his field displays the name of the MIB field whose data is to be sampled Sample Type This field displays the method of obtaining the sample value absoluteValue or deltaValue Value This field displays the value of the statistic during the last sampling period This value is for comparing against the RisingThreshold and FallingThreshold values Startup Alarm This field displays the alarm type 1 rising 2 falling or 3 risingOrFallingAlarm that can be sent when this alarm is first activated RisingThreshol d This field displays the rising threshold value set up for this alarm FallingThresho Id This field displays the falling threshold value set up for this alarm Rising Event This field indicates the index number of the event entry which Index corresponds to the time when the alarm threshold was crossed Falling Event This field indicates the index number of the event entry which Index corresponds to the time when the alarm threshold was crossed Owner This field displays the name of the creator of this entry Delete Click this to remove the selected alarm entry 19 5 1 RMON Alarm Create New Alarm Use the RMON Alarm Create New Alarm screen to configure RMON alarms Click Create new Alarm view the screen as shown You can also click an alarm index entry in the RMON Alarm Overview screen to edit an existing alarm configuration GS 1524 GS 1548 User s Guide Chapter 19 RMON Lite
88. how to configure automatic Denial of Service prevention on the Switch 15 1 About Denial of Service Attacks Denial of Service DoS attacks try to disable a device or network so users no longer have access to network resources The Switch has features which automatically detect and thwart currently known DoS attacks 15 1 1 DoS Attacks Summary The following table summarizes the types of attacks the Switch can prevent Table 29 DoS Attack Summary ATTACK DESCRIPTION Land Attacks These attacks result from sending a specially crafted packet to a machine where the source host IP address is the same as the destination host IP address The system attempts to reply to itself resulting in system lockup Blat Attacks These attacks result from sending a specially crafted packet to a machine where the source host port is the same as the destination host port The system attempts to reply to itself resulting in system lockup SYNFIN scans SYNchronization SYN ACKnowledgment ACK and FINish FIN packets are used to initiate acknowledge and conclude TCP IP communication sessions The following scans exploit weaknesses in the TCP IP specification and try to illicit a response from a host to identify ports for an attack Scan SYNFIN SYN and FIN bits are set in the packet Xmascan TCP sequence number is zero and the FIN URG and PSH bits are set NULL Scan TCP sequence number is zero and all control
89. ible hosts in a network as follows Table 75 Maximum Host Numbers SUBNET MASK HOST ID SIZE Ae eE QE 8 bits 255 0 0 0 24 bits 224 2 16777214 16 bits 255 255 0 0 16 bits 216 2 65534 24 bits 255 255 255 0 8 bits 28 2 254 29 bits 255 255 255 248 3 bits 23 2 6 Notation Since the mask is always a continuous number of ones beginning from the left followed by a continuous number of zeros for the remainder of the 32 bit mask you can simply specify the number of ones instead of writing the value of each octet This is usually specified by writing a followed by the number of bits in the mask after the address For example 192 1 1 0 25 is equivalent to saying 192 1 1 0 with subnet mask 255 255 255 128 The following table shows some possible subnet masks using both notations Table 76 Alternative Subnet Mask Notation sumnermask ROTON RARS BEGNA 255 255 255 0 24 0000 0000 0 255 255 255 128 25 1000 0000 128 255 255 255 192 26 1100 0000 192 255 255 255 224 27 1110 0000 224 255 255 255 240 28 1111 0000 240 255 255 255 248 29 1111 1000 248 255 255 255 252 30 1111 1100 252 Subnetting You can use subnetting to divide one network into multiple sub networks In the following example a network administrator creates two sub networks to isolate a group of servers from the rest of the company network for security reasons GS 1524 GS 1548 User
90. ina 141 miss Veios te INS RTT aaa TS 145 Appendices oi Y U0 A A 151 GS 1524 GS 1548 User s Guide 9 Contents Overview GS 1524 GS 1548 User s Guide Table of Contents Table of Contents Aboul This i E mtiivi i II a 3 po Ut eee li OY O A AA AA 5 Salety WANING E 7 i i 14 ae 9 Table pp 11 Part I Introduction and Hardware Overview 17 Chapter 1 Geiting to Know Your SWIEGD aue cantat enti tanen anta E anea ESA i pK p MEX ES 19 pg nus cuu T P T M TA 19 p Ec d Ele e uc ODE om 19 Tie I EN m 20 1 1 3 High Perfomance Switching Exempla isses esed uneeaedd tad anda rnt anke iat 21 1 1 4 IEEE 802 10 VLAN Application Example esito rester etae cese tee enean 21 Chapter 2 Hardware Installation and Connection eeeeseeeeeeeeeeeeeeee ener 23 ca aS Sted 05 T 23 22 Mounting he STI ona RICK e os eaae a e aA 24 2 2 1 Rack mounted Installation Requirements ccscccccessccceceeesseceeeeseeeeeeeeeeeeeeeeeenetses 24 2 2 2 Attaching the Mounting Brackets to the Switch essesssssseess 24 psc Mounting TNS TSI OTA A PUN EE 25 Chapter 3 Hardware Oval viblssasiptk UR UMOR UMORE aA UE EAR L
91. ing set age ltid 1 row_id 1 2 87 INFO RMON 2006 5 1 1 30 03 Reclaiming set ageltid 1 row_id 1 3 86 INFO PERSISTENCE 2006 6 1 1 27 34 Current settings for group 0x2000000 saved 4 85 INFO RMON 2006 5 11 19 38 Alarm table entry created index 1 5 84 INFO PERSISTENCE 2008 5 1118 11 Current settings for item mon saved 4T 42 INFO NETWORK 2006 5 10 16 59 Start DHCP process with network interface etht 48 41 INFO WEB 2006 6 10 16 53 User admin logined from 192 168 0 236 49 40 INFO PORT 2008 5 10 15 00 WSS Link change UP port 2 100Mb Full Duplex 50 39 INFO PORT 2008 5 10 15 00 WSS Link change UP port 14 100Mb Full Duplex The following table describes the labels in this screen Table 35 Logs RAM Flash LABEL DESCRIPTION Search Click this to search for specific log entries Export Click this to export save the log The logs default name is events csv A csv Comma Separated Values file can be viewed by most spreadsheet software such as Microsoft s Excel No This is the number of the log entry The log entries with the lowest numerical value are the most recent Index This field indicates the index number of the log This number doesn t change even if some logs are deleted from the Switch due to memory limits The index number increments by one for each recorded event The largest number represents the most recent log event Level
92. iority queues Strict priority scheduling services the remaining queues using WRR As traffic comes into the Switch traffic on the highest priority queue Queue 3 is transmitted first Only when that queue empties traffic on the lower priority queues is transmitted using WRR scheduling 11 2 QoS Enhancement You can configure the Switch to prioritize traffic even if the incoming packets are not marked with IEEE 802 1p priority tags or change the existing priority tags based on the criteria you select The Switch allows you to choose one of the following methods for assigning priority to incoming packets on the Switch Port Based QoS Assign priority to packets based on the incoming port on the Switch See Section 11 4 1 on page 71 DSCP Based QoS Assign priority to packets based on their Differentiated Services Code Points DSCPs See Section 11 4 2 on page 72 ToS Based QoS Assign priority to packets based on their Type of Service ToS tagging See Section 11 4 5 on page 74 IP Address Based QoS Assign priority to packets based on their IP address See Section 11 4 6 on page 75 Note Advanced QoS methods only affect the internal priority queue mapping for the Switch The Switch does not modify the IEEE 802 1p value for the egress frames You can choose one of these ways to alter the way incoming packets are prioritized or you can choose not to use any QoS enhancement setting on the Switch GS 1524 GS 1548 User s Guide
93. is port GS 1524 GS 1548 User s Guide Chapter 19 RMON Lite 19 3 RMON Lite Statistics Port Use this screen to enable statistics gathering and view the statistics for individual ports Click on a port number in the RMON Statistics Overview screen to view the screen as shown Figure 75 RMON Statistics Port RMON Lite RMON MIB Table 1 Statistics ad Apply Help RMON Statistics Port 01 Disabled SetEnable Ciccr sesh Help RMON MIB Object Value RMON MIB Object Value StatsDropEvents 0 IStatsJabbers 0 StatsOctets 0 StatsCollisions 0 StatsPkts 0 IStatsPkts64Octets o StatsBroadcastPkts 0 StatsPkts65to1270ctets 0 IStatsMulticastPkts 0 StatsPkts 128t02550ctets o IStatsCRCAlignErrors 0 StatsPkts256t05110ctets 0 IStatsUndersizePkts 0 StatsPkts512to10230ctets 0 StatsOversizePkts 0 IStatsPkts1024to15180ctets 0 StatsFragments 0 l Statistics Overview The following table describes the labels in this screen Table 55 RMON Statistics Port LABEL DESCRIPTION RMON MIB Table Use this drop down list box to select the MIB table you want to view Click Apply to refresh the screen to the selected MIB table view Set Enable Click this to activate statistics gathering for this port Clear Click this to reset all statistics values to O Refresh Click this to update all the fields in the RMON Statistics Port screen RMON MIB Object This column displays all types of sta
94. it 24 NoLimit No Limit GS 1524 GS 1548 User s Guide Chapter 12 Port Rate Limit and Storm Control The following table describes the related labels in this screen Table 22 Rate Limit and Storm Control LABEL DESCRIPTION Port This field displays the port number Click on an individual port number to configure rate limits on that port Ingress Displays the maximum bandwidth allowed in kilobits per second Kbps for Rate the incoming traffic flow on a port Egress Rate Displays the maximum bandwidth allowed in kilobits per second Kbps for the out going traffic flow on a port 12 1 1 Rate Limit Screen Click a port n umber in the Port Rate screen to bring up the screen as shown next Figure 45 Rate Limit Configuration Rate Limit For Port 01 Ingress Rate 10 Mbps Egress Traffic Shaping Enabled Rate Tokens Added Per Interval 157 Tokens gt Token Update Interval Burst Size No Limit 7 8125 us Each token represents 0 5 bit 66 KB Apply The following table describes the related labels in this screen Table 23 Rate Limit Configuration LABEL DESCRIPTION Ingress Specify the maximum bandwidth allowed in kilobits per second Kbps for Rate the incoming traffic flow on a port Egress Select Disabled to not have any bandwidth limits for outgoing traffic on Traffic the port or select Enabled to
95. itch VLAN ID Select the VLAN ID for this ARP entry Add Click this to save this entry to the ARP table and view the Dynamic ARP screen GS 1524 GS 1548 User s Guide Troubleshooting This chapter offers some suggestions to solve problems you might encounter The potential problems are divided into the following categories Power Hardware Connections and LEDs Switch Access and Login 21 1 Power Hardware Connections and LEDs The Switch does not turn on None of the LEDs turn on 1 Make sure you are using the power adaptor or cord included with the Switch 2 Make sure the power adaptor or cord is connected to the Switch and plugged in to an appropriate power source Make sure the power source is turned on 3 Disconnect and re connect the power adaptor or cord to the Switch 4 Ifthe problem continues contact the vendor One of the LEDs does not behave as expected 1 Make sure you understand the normal behavior of the LED See Section 3 3 on page 30 2 Check the hardware connections See the Quick Start Guide 3 Inspect your cables for damage Contact the vendor to replace any damaged cables 4 Disconnect and re connect the power cord to the Switch GS 1524 GS 1548 User s Guide Chapter 21 Troubleshooting 5 Ifthe problem continues contact the vendor 21 2 Switch Access and Login forgot the IP address for the Switch 1 The default IP address is
96. ks you can specify thresholds for triggering the dropping of packets by the Switch Select 64 kbps the Switch will drop packets when the rate of incoming Ping or SYN SYN ACK packets reaches this limit 128 kbps the Switch will drop packets when the rate of incoming Ping or SYN SYN ACK packets reaches this limit Apply Click Apply to save your changes GS 1524 GS 1548 User s Guide Chapter 15 Auto Denial of Service DoS GS 1524 GS 1548 User s Guide Auto VoIP This chapter shows you how to give higher priority to Voice over Internet Protocol Vol P packets over other data packets as they pass through the Switch 16 1 About Auto VoIP Voice over Internet Protocol VolP allows telephone calls to be made over a data network like the Internet With the increased prominence of delay sensitive applications voice video and other multimedia applications deployed in networks today proper QoS configuration ensures high quality application performance The Auto VolP feature is intended to provide an easy classification mechanism for voice packets so that they can be given high priority in order to provide better transmission resulting in higher sound quality for the end users The AutoVolP feature explicitly matches VoIP packets in Ethernet switches and provides them with the highest class of service The AutoVol P feature provides the capability to assign the highest priority for the following VoIP
97. l Navigate to individual feature configuration screens from the navigation panel GS 1524 GS 1548 User s Guide Chapter 4 The Web Configurator The following table describes the links in the navigation panel Table 4 Navigation Panel Links LINK DESCRIPTION System Use these screens to view general system information such as firmware version IP address and so on You can also use this screen to backup and restore your configuration Status Use this screen to view general system information Password Use this screen to change the system login password Firmware Use this screen to perform firmware upgrades Restart Use this screen to reboot the Switch or to restore the default Reset configuration of the Switch Port Use these screens to view the status and configure settings for individual ports on the Switch Statistics Use these screen to view system statistics such as the number of packets received on the Switch collisions and errors and to view statistics for individual ports on the Switch VLAN Use these screens to create new IEEE 802 1Q VLANs as well as view the status and edit existing IEEE 802 1Q VLANs on the Switch Trunk Groups Use these screens to create trunk groups and add remove ports from existing trunk groups Mirror Use this screen to copy traffic from one port or ports to another port in order that you can examine the traffic from t
98. labels in this screen Table 18 Port Based QoS LABEL DESCRIPTION Mode Select Port Based QoS to specify priority rules based on the port of incoming packets Change Configure the following Priority Port Select the number of the port for which you want to assign IEEE 802 1p priority to incoming frames Priority Select the IEEE 802 1p priority you want to assign to the packets coming into the Switch on the port specified in the Port field Click Change to view your changed settings Note The changes are not applied until you click Apply Change Settings Port This is a summary table of your port to IEEE 802 1p priority mappings The Priority Port column indicates the port number of the incoming packets and the Priority column indicates what IEEE 802 1p priority gets assigned to those packets Apply Click this when you have reviewed the changes you want to make and you Change want to save them to the Switch s memory Settings 11 4 2 DSCP Based QoS The Switch allows you to create a mapping table between Differentiated Services Code Points DSCPs tags and IEEE 802 1p priority tags 11 4 3 Differentiated Services Code Point DSCP Overview Differentiated Services DiffServ is a class of service CoS model that marks packets so that they receive specific per hop treatment at DiffServ compliant network devices along the route based on the application types and traffic flow Packets are
99. ld displays the name of the SNMP group the user belongs to SNMP Version This field indicates which SNMP version this user uses to manage the Switch Auth Type This field indicates whether authentication is required for this user Authentication can only be configured for SNMP v3 This field displays None if no authentication is required for this user or it displays MD5 if Message Digest authentication is enabled Previous Use these navigation links to browse all of your SNMP groups Page Next Page GS 1524 GS 1548 User s Guide EU Chapter 18 SNMP 18 3 1 SNMP User Create You must configure an SNMP group first before you can create an SNMP user Click on the Create New User link in the SNMP User screen to add an SNMP user The screen displays as shown Figure 65 SNMP User Create SNMP User User Name Group Name fh Help SNMP Version SNMPv3 Auth Type Mos v Key Create Cancel The following table describes the labels in this screen Table 45 SNMP User Create LABEL DESCRIPTION User Name Specify the name for this SNMP user You can use 1 33 any printable character Spaces are allowed Group Name Specify the SNMP group this user belongs to SNMP Version Specify the SNMP version this group uses to manage the Switch Auth Type Authentication can only be configured for SNMP v3 Select None to allow this use
100. le Diagnostic Help Port to diagnose 4 Apply Diagnostic for Port 4 4 pairs Status Open PAIR A Open length 0 meters T PAIR B Open length 0 meters PAIR C Open length 0 meters PAIR D Open length 0 meters The following table describes the labels in this screen Table 28 Cable Diagnostic LABEL DESCRIPTION Port to diagnose Select the port you want to test Apply Click this to perform cable testing on the specified port Diagnostic for This field displays the number of wired pairs the port is communicating Port 01 over GS 1524 GS 1548 User s Guide Chapter 14 Cable Diagnostics Table 28 Cable Diagnostic continued LABEL DESCRIPTION Status This field displays the results of the test Ok the cable is working properly Open there is no cable connected to the port or the cable is damaged Short there is a short along the cable Short between pair there is a short between two twisted pairs of cable Pair A Pair D This field displays the whether the twisted pair has a good connection Ok or it displays the type of fault the Switch has detected Open Short or Short between pair It also displays the length of total twisted pair length or the distance to the detected fault depending whether the cable tested Ok or a fault was found GS 1524 GS 1548 User s Guide Auto Denial of Service DoS This chapter shows you
101. lect Enabled to force SNMP v3 groups to authenticate with the Switch or select Disabled to deactivate authentication for the SNMP v3 groups For SNMP v1 and SNMP v2c authentication is always disabled Access Read select Enabled to allow this group to collect information from this Switch Write select Enabled to allow this group to create or edit SNMP objects Apply Click this to save your settings to the Switch 18 3 SNMP User An SNMP user is an SNMP manager SNMP managers must use the proper SNMP user and group credentials to gain access to and manage agents such as the GS 1524 GS 1548 User s Guide Chapter 18 SNMP Switch Use the SNMP User screen to create SNMP users and associate them to SNMP groups Click SNMP gt User to view the screen as shown Figure 64 SNMP User SNMP User Help User ID z Create New User User Auth ID User Name Group Name SNMP Version Type Click on User ID to edit or remove The following table describes the labels in this screen Table 44 SNMP User LABEL DESCRIPTION User ID Select the SNMP user you want to edit Create New Click this to configure a new SNMP user User User ID This field indicates the manager identification number It is used for identification only Click on the individual user number to edit the user settings User Name This field displays the name of the SNMP user Group Name_ This fie
102. marked with DiffServ Code Points DSCPs indicating the level of service desired This allows the intermediary DiffServ compliant network devices to handle the packets differently depending on the code points without the need to negotiate paths or remember state information for every flow In addition applications do not have to request a particular service or give advanced notice of where the traffic is going DiffServ defines a new DS Differentiated Services field to replace the Type of Service ToS field in the IP header The DS field contains a 2 bit unused field and a 6 bit DSCP field which can define up to 64 service levels GS 1524 GS 1548 User s Guide Chapter 11 QoS You can configure the DSCP to IEEE 802 1p mapping to allow the Switch to prioritize all traffic based on the incoming DSCP value according to the DiffServ to IEEE 802 1p mapping table 11 4 4 DSCP Based QoS Screen You can configure the Switch to assign a IEEE 802 1p priority to packets coming into the Switch with DSCPs assigned to them Select DSCP Based QoS in the QoS Enhancement Setting screen to view the following screen Figure 41 DSCP Based QoS QoS Enhancement Setting Help Mode DscP Based QoS Change Priority DSCP o Priority o Change DSCP Priority DSCP Priority 00 0 x 0 01 D s i D 02 0 34 0 03 0 35 0 04 0 36 0 05 0 37 0 o o WAN Onn en hm a 2 wb 0 61
103. mber of remote syslogd servers 4 Apply The following table describes the labels in this screen Table 33 Logging LABEL DESCRIPTION Add Server Click this to configure a new syslog server Logging Click the RAM or Flash link to view the logs stored on the Switch Target Use the columns on the right to select the types of system events each logging target should record Select Error to record system failures such as events which will cause the Switch to malfunction and events such as invalid user input in the web configurator Warning to record non critical errors on the Switch The Switch will continue to function when warnings are recorded Info to record regular system events such as configuration changes or logins Debug to record events which can be helpful for engineering debugging of the Switch s function This field is not recommended to track as it creates many messages not helpful to typical users For RAM and Flash logs you can also hit Clear to delete all log entries For each Server log you configured you can hit Delete to remove this syslog server from logging system events for the Switch Apply Click Apply to save your changes GS 1524 GS 1548 User s Guide Chapter 17 Event Logging 17 3 Logging Add Server Use this screen to configure a new syslog entry Click Add Server in the Logging screen to view the screen as shown Figure 55 Logging
104. memory causing packet discards and frame losses Flow Control is used to regulate transmission of signals to match the bandwidth of the receiving port The Switch uses IEEE802 3x flow control in full duplex mode and backpressure flow control in half duplex mode EEE802 3x flow control is used in full duplex mode to send a pause signal to the sending port causing it to temporarily stop sending signals when the receiving port memory buffers fill Back Pressure flow control is typically used in half duplex mode to send a collision signal to the sending port mimicking a state of packet collision causing the sending port to temporarily stop sending signals and resend later Select Enable to turn this feature on or select Disable to turn it off Default This priority value is added to incoming frames without a priority queue Priority tag PVID Enter a number identifying an existing VLAN The Switch tags the incoming untagged frames on that port so that the frames are forwarded to the VLAN group that the tag defines Apply Click Apply to save your changes GS 1524 GS 1548 User s Guide 1 Chapter 6 Port Settings 52 GS 1524 GS 1548 User s Guide System and Port Statistics This chapter describes the overview and individual port statistics screens 7 1 Overview The statistics screen of the web configurator displays a port statistical summary with links to each port showing statistical
105. nels of the AC power input model Switch The rear panel contains a receptacle for the power cord The GS 1524 s rear panel also contains the RESET button Figure 14 GS 1524 Rear Panel RESET AC INPUT 100 240VAC 50 60Hz 3A MAX Figure 15 GS 1548 Rear Panel AC INPUT 100 240VAC 50 50Hs 1 5A MAX 3 3 1 Power Connector Make sure you are using the correct power source as shown on the panel GS 1524 GS 1548 User s Guide 31 Chapter 3 Hardware Overview 3 4 4 Power Connector Make sure you are using the correct power source as shown on the panel To connect the power to the Switch insert the female end of the power cord into the power receptacle on the rear panel Connect the other end of the supplied power cord to a 100 240V AC 50 60 Hz power outlet capable of supplying at least 0 9A G 1524 or 1 5A GS 1548 32 GS 1524 GS 1548 User s Guide The Web Configurator 35 System 43 Port Settings 49 System and Port Statistics 53 VLAN 57 Trunking 63 Mirroring 65 QoS 67 Port Rate Limit and Storm Control 77 Layer 2 L2 Management 83 Cable Diagnostics 87 Auto Denial of Service DoS 89 Auto VoIP 93 ART II Advanc Settings ad The Web Configurator This section introduces the configuration and functions of the web configurator 4 1 Introduction The web configurator is an HTML based management interface that allows easy setup and managemen
106. ntilation holes 24 VID 57 number of possible VIDs 57 priority frame 57 VID VLAN Identifier 57 viewing MAC entries 85 VLAN 57 146 147 create 59 editing 60 ID 57 status 58 tagged 57 tagged and untagged 60 W warranty 165 note 165 web configurator 35 getting help 41 home 36 43 LED panel 37 login 35 logout 41 navigation 36 37 weight of the switch 147 weight queuing 67 Weighted Round Robin scheduling WRR 67 WRR Weighted Round Robin scheduling 67 GS 1524 GS 1548 User s Guide
107. obada aatia gl REA do op poc RU 87 Chapter 15 Auto D mial or Service DOS M S 89 15 1 About Dental pi Sarvica ATLSOKS uon ero eiiaoe a A TREVAR 89 TSS DoS Attacke SUMAI cscri onn ace aA sanded EOE 89 15 2 Global Auto DoS Attack PRG 1uiuiie dais enda ato k rec ask naa daa ra aa 90 15 3 Advanced Auto DoS Attack Prevention ccccecccecsssecesecceeeeseeeeeeeeeeneeeeeeaceesneneeeeaaeenseeeees 91 Chapter 16 AUO VOlP ee ee 93 WG At uel M 93 TES AD VolP ESOS aiibi cme ceca dai brekU Mago Dt UI ON beUi dob Fol Si dapi ete Uiogabba cesi quta Feb T debes t QU EF 94 Part Ill Management and Troubleshooting 95 Chapter 17 Event Logging 97 pr Event Logging OVER arm n aiaee aE E A EESE 97 1252 Laon E aE E E AAA 98 Tea Loom Ad v Me LEE 99 174 Miewitig RAM and Flash LOGS eem 9g 17 6 ne eure i and Flash LOGS MEE S aina 102 pA NE ndi cl E 103 Chapter 18 SNMP oriana NEA AANE ENTANA E UAXAA BAV ARM AAR NE MAR ANAK DAAARAME UEM UIMAAAMER AA AM IA 105 IE WUE I aiaia gN Ne epS QR ipee ia t ord Rp tas Tehran Mo RR 105 mE E W tto 106 MEUS aa 107 TEC T S SNMP SS SEO PINE ICAU asasaran dux epu dud ancha ce dt emer d 107 pou cdm baee az usadaacetiiatee tbe rissa Lace nadatie ase e ean atdaeore eden 107 a ONAP OE Meaeenee ree TT 108 15 2 1 SNMP GUD GETI ane ee ener aac
108. of groups and users to enhance security for SNMP management A user is an SNMP manager A group is a group of SNMP managers that are assigned common access rights to MIBs For example one group of managers may only have access to agents with MIB II System Group MIBs while another may have access to agents with the Ether like MIB In addition SNMP managers can also be required to authenticate with agents before conducting SNMP management sessions Note SNMP v3 is enabled when you create SNMP groups and users Once SNMP v3 is enabled you must configure unique SNMP communities for SNMP v1 and or SNMP v2c access 18 1 4 SNMP EnginelD The SNMP Engine ID is a unique identifier that identifies agents to the managers The default SNMP Engine ID is the MAC address of the agent You can change this Use the SNMP Enginel D screen to specify the Engine ID for the Switch Click SNMP gt Enginel D in the navigation panel to view the screen as shown Figure 60 SNMP EnginelD SNMP EnginelD Help C Engine ID 80 00 07 e5 04 fT EO Using Default 80 00 07 e5 04 001018534701 Apply GS 1524 GS 1548 User s Guide 107 Chapter 18 SNMP The following table describes the labels in this screen Table 40 SNMP EnginelD LABEL DESCRIPTION Engine ID Select this radio button and enter a unique Engine ID for the Switch The format is limited to hexadecimal characters 0 9 and a f and the maximum length is 27
109. ogs Use this screen to configure logs which are saved to non volatile memory These logs can be seen even after the Switch is rebooted SNMP Use these screens to configure SNMP management settings Engine ID Use this screen to configure SNMP engine ID Group Use this screen to configure groups with different access rights for SNMP management User Use this screen to create users and assign them to pre defined SNMP groups Community Use this screen to define security parameters for SNMP v1 and SNMP v2c Trap Use this screen to configure settings that define when notifications are Station sent to an external management station RMON Lite Use this screen to configure Remote Network Monitoring Management Information Base RMON MIB settings Dynamic ARP Use these screens to enable and configure ARP table settings Settings Use this screen to configure ARP table settings ARP Entries Use this screen to enter and view MAC address to IP address mappings Logout Click this to logout of the web configurator 4 3 3 Change Your Password After you log in for the first time it is recommended you change the default administrator password Click System Password to display the next screen Figure 19 Change Administrator Login Password Change Password Help Old Password New Password Confirm New Password Apply 4 4 Saving Your Configuration When you are done
110. olP traffic ensuring better sound quality and reliability for end users Dynamic ARP Dynamic ARP allows you to filter incoming traffic based on the MAC to IP address mapping The Switch can be configured to only allow trusted devices to communicate via its ports GS 1524 GS 1548 User s Guide Chapter 22 Product Specifications Table 72 Firmware Features FEATURE DESCRIPTION RMON Lite Remote Network Monitoring Management RMON allows you to gather information about the Switch s performance view statistics and create alarms Cable Diagnostics Use this feature to inspect the Ethernet cables connected to the Switch for shorts open faults or shorts between pairs Logging The Switch allows you to specify what information should be logged and where it should be stored It supports internal logging as well as external logging via a syslog server GS 1524 GS 1548 User s Guide Chapter 22 Product Specifications GS 1524 GS 1548 User s Guide PART IV Index IP Addresses and Subnetting 151 Legal Information 163 Index 167 IP Addresses and Subnetting This appendix introduces IP addresses and subnet masks P addresses identify individual devices on a network Every networking device including computers servers routers printers etc needs an IP address to communicate across the network These networking devices are also known as hosts
111. ollowing table describes the labels in this screen Table 57 RMON History Control Modify LABEL DESCRIPTION RMON MIB Use this drop down list box to select the MIB table you want to view Table Click Apply to refresh the screen to the selected MIB table view Index This field displays the entry index number Data Source This field displays the port number associated with the I ndex entry BucketRequeste This field displays the number of samplings the Owner of the entry d requests Interval Enter the time in seconds between data samplings Owner Enter a descriptive name of the application that creates this entry You can use 1 64 printable characters Spaces are not allowed GS 1524 GS 1548 User s Guide Chapter 19 RMON Lite Table 57 RMON History Control Modify continued LABEL DESCRIPTION Status Select Enable Disable to activate or deactivate statistical sampling on the port Apply Click this to save the settings on the Switch History Control Click this to go back to the RMON History Control Overview screen Overview 19 4 3 RMON History Statistics Overview Use the RMON History Statistics Overview screen to view the results of statistical sampling on the ports Select 2 History Statistics from the RMON MI B Table drop down listbox in the RMON Lite screen to view the screen as shown Figure 78 RMON History Statistics Overview RMON Lite
112. on 15 1 1 on page 89 for more information on specific types of attacks Apply Click Apply to save your changes GS 1524 GS 1548 User s Guide Chapter 15 Auto Denial of Service DoS 15 3 Advanced Auto DoS Attack Prevention Use the Advanced Auto DoS Attack Prevention screen to configure DoS attack prevention settings for individual ports Click the Advanced link in the Global Auto DoS Attack Prevention screen to view the following screen Figure 52 Advanced Auto DoS Attack Prevention Advanced Auto DoS Attack Prevention Help Global Port o Apply settings to all ports Denial of Service Prevention Parameter m Prevent Smurf Attacks l Prevent Ping Flooding C amp Akbps C 128 kbps EA Prevent SYN SYN ACK Flooding C 64 kbps 128 kbps Select al Apply The following table describes the labels in this screen Table 31 Advanced Auto DoS Attack Prevention LABEL DESCRIPTION Global Click this link to view the Global Auto DoS Attack Prevention screen Port Select the port you want to configure or select Apply settings to all ports to configure all the ports on the Switch Denial of Select the types of attacks you want to prevent or choose Select All to Service prevent all types of attacks and scans supported by the Switch See Prevention Section 15 1 1 on page 89 for more information on specific types of attacks Parameter For Ping and SYN SYN ACK Flooding attac
113. on can manage and monitor the Switch through the network via SNMP version one SNMPv1 SNMP version 2c or SNMP version 3 The next figure illustrates an SNMP management operation SNMP is only available if TCP IP is configured Figure 59 SNMP Management Model Manager b N Agent Agent Agent Managed Device Managed Device Managed Device An SNMP managed network consists of two main components agents and a manager An agent is a management software module that resides in a managed network device the Switch An agent translates the local management information from the managed device into a form compatible with SNMP The manager is the console through which network administrators perform network management functions It executes applications that control and monitor managed devices GS 1524 GS 1548 User s Guide Chapter 18 SNMP The managed devices contain object variables managed objects that define each piece of information to be collected about the device Examples of variables include number of packets received node port status and so on A Management Information Base MIB is a collection of managed objects SNMP allows a manager and agents to communicate for the purpose of accessing these objects SNMP itself is a simple request response protocol based on the manager agent model The manager issues a request and the agent returns responses using the following protocol operations Table 38 SNMP Commands
114. only field displays the name of your Switch Firmware This field displays the version number of the Switch s current firmware Version Click Upgrade to go to the firmware upgrade screen See Section 5 3 on page 47 Build Date This field displays the date of the currently installed firmware MAC Address This field displays the MAC Media Access Control address of the Switch GS 1524 GS 1548 User s Guide Chapter 5 System Table 5 System continued LABEL DESCRIPTION IP Address This field indicates the IP address of the Switch You can click the existing IP address to change it See Section 5 1 1 on page 44 Subnet Mask This field indicates the subnet mask of the Switch Gateway This field indicates the IP address of the default gateway L2 Table Aging This field displays whether the L2 Table Aging is enabled or disabled Click Enabled Disabled to change the L2 Table Aging settings Backup settings Click this link to create and save a backup configuration file See Section 5 1 3 on page 45 Restore settings Click this link to upload an existing configuration file to the Switch See Section 5 1 4 on page 46 5 1 1 Configure IP Address Use the Configure I P Address screen to set up the IP address manually The following screen appears when you click the existing IP address in the System Status screen Figure 22 Configure IP Addre
115. ore VLANs than can be displayed on one screen 8 2 2 Create IEEE 802 1Q VLAN Screen See Section 8 1 on page 57 for more information on VLANs Click VLAN in the navigation panel to display the IEEE 802 1Q VLAN screen as shown next Figure 34 VLAN Create VLAN IEEE 802 1Q VLAN Help New VLAN ID 2 4094 All 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 U Click the icon under each port to change member state To change state of all ports click the icon under All Not member T Tag egress packets U Untag egress packets Create Cancel GS 1524 GS 1548 User s Guide Chapter 8 VLAN The following table describes the labels in this screen Table 13 VLAN Create VLAN LABEL DESCRIPTION New VLAN ID Enter the VLAN ID of the VLAN you want to create ALL This button allows you to configure all the ports at once Click this button to change the state of all the ports at once The possible states are empty This indicates that the port is not part of the VLAN T This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is added U This indicates that this port is a member of the VLAN When the packet leaves the member port the VLAN tag is removed These buttons allow you to specify whether the individual ports are members of this VLAN Click the buttons below the numbers to chan
116. ority level is significant and the default VID of the ingress port is given as the VID of the frame Of the 4096 possible VIDs a VID of 0 is used to identify priority frames and value 4095 FFF is reserved so the maximum possible VLAN configurations are 4 094 TPID User Priority CFI VLAN ID 2 Bytes 3 Bits 1 Bit 12 bits 8 1 1 Forwarding Tagged and Untagged Frames Each port on the Switch is capable of passing tagged or untagged frames To forward a frame from an 802 1Q VLAN aware switch to an 802 1Q VLAN unaware switch the Switch first decides where to forward the frame and then strips off the VLAN tag To forward a frame from an 802 1Q VLAN unaware switch to an 802 1Q GS 1524 GS 1548 User s Guide Chapter 8 VLAN VLAN aware switch the Switch first decides where to forward the frame and then inserts a VLAN tag reflecting the ingress port s default VID The default PVID is VLAN 1 for all ports but this can be changed A broadcast frame or a multicast frame for a multicast group that is known by the system is duplicated only on ports that are members of the VID except the ingress port itself thus confining the broadcast to a specific domain 8 2 Static VLAN Use a IEEE 802 1Q VLAN to decide whether an incoming frame on a port should be sent to a VLAN group as normal depending on its VLAN tag sent to a group whether it has a VLAN tag or not You can also tag all outgoing frames that were previou
117. out an individual port on the Switch Figure 32 Status Port Details Statistics Refresh Help Port 01 TX lOctets 233808 UnicastPkts 918 NonUnicastPkts 0 Discards lo Eros o QLength L RX Octets 217656 UnicastPkts 1280 INonUnicastPkts 459 Discards NN Errors 0 Summary UnkonwnProtos lo DropEvents 0 lOversizePkts 0 BrodcastPkts 455 IMulticastPkts 4 UndersizePkts jo Fragments 0 Jabbers 0 Collisions 0 CRCAlignErr 0 TotalOctets 217656 TotalPkts 1738 665 127 p 1112 BytePkts 293 428 255 135 256 511 97 BytePkts BytePkts 1512 1023 93 1024 1518 9 BytePkts BytePkts GS 1524 GS 1548 User s Guide Chapter 7 System and Port Statistics The following table describes the labels in this screen Table 11 Status Port Details LABEL DESCRIPTION Refresh Click this to retrieve the current information from the Switch and update this screen Port This field displays the port number you are viewing TX The following fields display detailed information about packets transmitted Octets This field shows the number of octets transmitted UnicastPkts This field shows the number unicast packets transmitted NonUnicastPkts This field shows the number of non unicast packets transmitted Discards This field shows the number discarded dropped packets Errors This field
118. owing table describes the labels in this screen Table 26 Add a Static MAC Entry LABEL DESCRIPTION MAC Address Enter the MAC address in valid MAC address format that is six hexadecimal character pairs Note Static MAC addresses do not age out VID Enter the VLAN identification number Port Select the port where the traffic with the destination MAC address entered in the MAC Address field will be automatically forwarded Add Address Click this to add this entry into the MAC address table GS 1524 GS 1548 User s Guide Chapter 13 Layer 2 L2 Management 13 2 Viewing the L2 Address Table Use the L2 Address Table screen to view entries in the MAC address table Click L2 Address Display in the navigation panel to display the screen as shown Figure 49 Display L2 Address Table L2 Address Table Reload Address Table Help Total number of L2 Learned Entries 28 Static 1 Dynamic 27 tem Sourcemac VID Pot Type _ 4 20 06 08 22 00 08 1 18 dynamic 2o 00 0F FE 1E 4A EO 1 18 dynamic 3 00 OF FE AD 68 AB 1 18 dynamic 4 00 02 E3 30 43 34 1 18 dynamic 5 00 OF FE 3D 07 5B 1 18 dynamic 6 00 10 18 53 47 01 1 HOST static 7 00 11 85 89 7A D9 1 418 dynamic g D0 16 D3 27 D0 85 Wr 48 dynamic 9 00 15 D3 27 D0 1B 1 18 dynamic 10 00 13 49 D1 FA DE 1 18 dynamic 41 00 CO
119. own 1 15 Down 1 04 Up 100Mbps Full Disabled 1 16 Down 1 05 Down 1 17 Down 1 06 Down 1 18 Down 1 07 Down 1 19 Down 1 08 Down 1 20 Down 1 09 Down 1 21 Down 1 10 Down 1 22 Down 1 13 Down 1 23 Down 1 12 Down 1 24 Down 1 The following table describes the labels in this screen Table8 Port Status LABEL DESCRIPTION Refresh Click this to update the PORT Status screen Port This identifies the Ethernet port Click a port number to display the Port Configuration screen refer to Section 6 2 on page 50 Link Status This field displays the link status of the port Up if the port is enabled and active or Down if the port is disabled or not connected to any device Speed Duplex This field displays the speed either 10Mbps 100Mbps or 1000Mbps and the duplex mode Full or Half GS 1524 GS 1548 User s Guide Chapter 6 Port Settings Table8 Port Status continued LABEL DESCRIPTION Flow Control Enables access to buffering resources for the port thus ensuring lossless operation across network switches This field displays either Enabled or Disabled PVID The PVID field specifies what tag the incoming untagged frames receive on that port so that the frames are forwarded to the VLAN group that the tag defines 6 2 Port Configuration Use this screen to configure individual port settings Click a port number in the Port Status screen to access this screen Fig
120. p configuration file 45 bandwidth control 146 147 bridging 146 147 C cable diagnostics 87 types of faults 87 categories of events 101 certifications 163 Index notices 164 viewing 165 CFI Canonical Format Indicator 57 changing the password 39 Class of Service CoS 72 configuration file backup 45 restore 46 configuration saving 39 copyright 163 D DHCP Snooping 137 DiffServ DS field 72 DSCP 72 dimensions 147 disclaimer 163 distribution criterion and trunking 63 DS Differentiated Services 72 DSCP DiffServ Code Point 72 duplex modes 28 dynamic ARP how it works 137 E egress mirror 65 Ethernet ports 28 default settings 28 external logs 97 F FCC interference statement 163 GS 1524 GS 1548 User s Guide 167 Index firmware 43 upgrade 47 firmware version 43 flow control 51 back pressure 51 EEE802 3x 51 forwarding based on MAC 84 front panel 27 G general features 146 getting help 41 H hardware installation 23 mounting 24 hardware overview 27 help web configurator 41 IANA 162 ingress mirror 65 installation freestanding 23 precautions 24 rack mounting 24 Internet Assigned Numbers Authority See IANA 162 introduction 19 IP address 43 IP address setup 44 L L2 Level 2 table aging 45 L2 management 83 layer 2 features 146 147 LEDs 30 link aggregation 63 lockout 40 login 35 password 39 logs 97 adding external syslog 99 cate
121. pecific IP addresses Select IP Address Based QoS in the QoS Enhancement Setting screen to view the following screen Figure 43 IP Address Based QoS ID QoS Enhancement Setting Help Mode IP Address Based QoS Add Entry IP MASK Priority D Add Change Priority Index fi Priority a Change IP 01 192 168 1 33 2552552550 7 DELETE Apply Change Settings ww Xy Z Ww Xy Z MASK Priority Delete GS 1524 GS 1548 User s Guide Chapter 11 QoS The following table describes the labels in this screen Table 21 IP Address Based QoS LABEL DESCRIPTION Mode Select IP Address Based QoS to give higher or lower priority to packets coming into the Switch from a specified source IP address Add Entry Enter the IP address and the subnet mask of the source whose traffic you want to assign a priority to in the IP and MASK fields respectively Select the Priority value and click Add Change Use these fields to edit existing IP address based QoS entries Select the Priority index of an existing IP address based QoS entry This is the same value as listed in the ID column of this screen Select the Priority you want to assign to this entry Click Change to view your changed settings Note The changes are not applied until you click Apply Change Settings ID IP This is a summary table of your IP address based QoS settings This table MASK updates when you click the Change bu
122. pecify a limit for the amount of broadcast and multicast packets received per second Broadcast and unknown unicast to specify a limit for the amount of broadcast and DLF packets received per second Broadcast multicast and unknown unicast to specify a limit for the amount of broadcast multicast and DLF Destination Lookup Failure packets received per second Storm Control Select the number of packets of the type specified in the Storm Control Rate Type field per second the Switch can receive per second Apply Click Apply to save your changes GS 1524 GS 1548 User s Guide Chapter 12 Port Rate Limit and Storm Control GS 1524 GS 1548 User s Guide Layer 2 L2 Management Use these screens to add delete and view entries in the Layer 2 L2 address table 13 1 Configuring L2 Management Layer 2 L2 management refers to management based on the Media Access Control MAC address of networking devices A static Media Access Control MAC address is an address that has been manually entered in the MAC address table Static MAC addresses do not age out When you set up static MAC address rules you are setting static MAC addresses for a port This may reduce the need for broadcasting Click L2 Address Management in the navigation panel to display the configuration screen as shown Figure 47 L2 Management L2 Address Management Static Address ADD Item Source MAC VID Port 0
123. r to manage the Switch without authentication or select MD5 and configure the Key field to force this user to authenticate with the Switch Key Enter the MD5 key this user must use to authenticate with the Switch You can use 1 8 printable ASCII characters Spaces are allowed but trailing spaces are truncated Create Click this to add this SNMP user to the Switch Cancel Click this to go back to the main SNMP Group screen without saving your changes GS 1524 GS 1548 User s Guide Chapter 18 SNMP 18 3 2 SNMP User Modify Click on the User I D number or select a User I D from the User I D drop down list box in the SNMP User screen to modify the settings of an existing user Figure 66 SNMP User Modify SNMP User Help User ID 1 Remove This User Display All User User Name Useri Group Name SNMP Version None Auth Type MD5 a Old Key New Key Apply The following table describes the labels in this screen Table 46 SNMP User Modify LABEL DESCRIPTION User ID This field indicates which user you are modifying Click on Remove This User to delete this user configuration from the Switch Click on Display All User to view the main SNMP User screen User Name Edit the name for this SNMP user Group Name Select the SNMP group this user should belong to SNMP Version Specify the SNMP version this group uses to manage the Switch Auth T
124. ress sends it to the device If no entry is found for the IP address dynamic ARP discards the ARP packet GS 1524 GS 1548 User s Guide 137 Chapter 20 Dynamic ARP 20 2 Enabling Dynamic ARP Click Dynamic ARP gt Settings in the navigation panel to open the following screen Use the Dynamic ARP screen to configure ARP filtering on the specified VLANs Figure 86 Dynamic ARP Dynamic ARP Help T Enable Dynamic ARP Aging Time minutes Trusted ports Clickthe checkbox under each portto assign trusted ports 01 02 03 04 05 06 07 os o9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 mimimim m m m im m m m m m m m m m m m m m m m m Enable Dynamic ARP for VLAN from v to Disable Dyamic ARP for VLAN from toj Current Enabled VLAN Apply The following table describes the labels in this screen Table 66 ARP Table LABEL DESCRIPTION Enable Select or deselect this to activate or deactivate Dynamic ARP on the Switch Dynamic ARP Note You must activate dynamic ARP first if you want to add static ARP table entries Aging Time Specify how long in hours the Switch remembers the learned ARP table entries Specify 0 to have the Switch remember the ARP table entries for an unlimited time period Trusted Packets arriving on trusted ports bypass all Dynamic ARP validation checks ports and those arriving on untrusted ports undergo
125. rt the combined weight of all the equipment it contains Make sure the position of the Switch does not make the rack unstable or top heavy Take all necessary precautions to anchor the rack securely before installing the unit 2 2 2 Attaching the Mounting Brackets to the Switch 1 Position a mounting bracket on one side of the Switch lining up the four screw holes on the bracket with the screw holes on the side of the Switch Figure 6 Attaching the Mounting Brackets GS 1524 GS 1548 User s Guide Chapter 2 Hardware Installation and Connection 2 Using a 2 Philips screwdriver install the M3 flat head screws through the mounting bracket holes into the Switch 3 Repeat steps 1 and 2 to install the second mounting bracket on the other side of the Switch 4 You may now mount the Switch on a rack Proceed to the next section 2 2 3 Mounting the Switch on a Rack 1 Position a mounting bracket that is already attached to the Switch on one side of the rack lining up the two screw holes on the bracket with the screw holes on the side of the rack Figure 7 Mounting the Switch on a Rack D D D i D je e A e I o M D D E rl D D 0 nc 2 Using a 2 Philips screwdriver install the M5 flat head screws through the mounting bracket holes into the rack 3 Repeat steps 1 and 2 to attach the second mounting bracket on the other side of the rack GS 1524 GS
126. runk ports if for example it is cheaper to use multiple lower speed links than to under utilize a high speed but more costly single port link However the more ports you aggregate then the fewer available ports you have A trunk group is one logical link containing multiple ports 9 1 1 Distribution Criteria The Switch uses a traffic distribution algorithm to balance traffic between trunk members The Switch allows you to specify what criterion it should use to calculate the most efficient distribution of traffic The choices are Source MAC Address SA Destination MAC Address DA or both SA DA The best choice of distribution criteria depends on your specific network environment GS 1524 GS 1548 User s Guide Chapter 9 Trunking 9 2 Trunk Setting Screen Use this screen to aggregate groups of physical ports into one higher capacity link Click Trunk Groups in the navigation panel to display the Trunk Setting screen Figure 36 Trunk Setting Trunk Setting Distribution Criterion SA Source MAC Address j Modify Trunk Group Member Trunk id E Port e Add Trunk Group Member i Trunk Group Member Trunk 1 j Trunk 4 Trunk 2 Trunk 5 Trunk 3 Trunk 6 Help Maximal number of ports per trunk 8 Apply The following table describes the labels in this screen Table 15 Trunking Configuration LABEL DESCRIPTION Distribution Trunking uses a distribution al
127. s Guide Appendix A IP Addresses and Subnetting In this example the company network address is 192 168 1 0 The first three octets of the address 192 168 1 are the network number and the remaining octet is the host ID allowing a maximum of 28 2 or 254 possible hosts The following figure shows the company network before subnetting Figure 90 Subnetting Example Before Subnetting m CN RR a ee Ld ri 1 uU L id Vu W u L b L ii li E i V D L E D E E Dj Ti LI a 192 168 1 0 24 a e nme EEEE You can borrow one of the host ID bits to divide the network 192 168 1 0 into two separate sub networks The subnet mask is now 25 bits 255 255 255 128 or 25 The borrowed host ID bit can have a value of either O or 1 allowing two subnets 192 168 1 0 25 and 192 168 1 128 25 GS 1524 GS 1548 User s Guide 157 Appendix A IP Addresses and Subnetting The following figure shows the company network after subnetting There are now two sub networks A and B Figure 91 Subnetting Example After Subnetting fs UB B o B lt gt M i f UN f Internet fi it fi fl f a A 7 ni 1 a an g 4 192 168 1 0 25 88192 168 1 128 25 8I 1 4 am mumamam mam PF uum oum um um um im um m In a 25 bit subnet the host ID has 7 bits so each sub network has a maximum of 2 2 or 126 possible hosts a host ID of all zeroes i
128. s Telnet If you can access the Switch check the remote management settings to find out why the Switch does not respond to HTTP can see the Login screen but cannot log in to the Switch 1 Make sure you have entered the user name and password correctly The default user name is admin and the default password is 1234 These fields are case sensitive so make sure Caps Lock is not on 2 You may have exceeded the maximum number of concurrent Telnet sessions Close other Telnet session s or try connecting again later Check that you have enabled logins for HTTP or telnet If you have configured a secured client IP address your computer s IP address must match it Refer to the chapter on access control for details 3 Disconnect and re connect the cord to the Switch 4 Ifthis does not work you have to reset the device to its factory defaults See Section 3 4 on page 31 Pop up Windows JavaScripts and Java Permissions In order to use the web configurator you need to allow Web browser pop up windows from your device JavaScripts enabled by default Java permissions enabled by default GS 1524 GS 1548 User s Guide Chapter 21 Troubleshooting GS 1524 GS 1548 User s Guide Product Specifications This chapter gives details about your Switch s hardware and firmware features 22 1 General Switch Specifications The following tables list the product specifications Table 69 Physical and
129. s the subnet s address itself all ones is the subnet s broadcast address 192 168 1 0 with mask 255 255 255 128 is subnet A itself and 192 168 1 127 with mask 255 255 255 128 is its broadcast address Therefore the lowest IP address that can be assigned to an actual host for subnet A is 192 168 1 1 and the highest is 192 168 1 126 Similarly the host ID range for subnet B is 192 168 1 129 to 192 168 1 254 Example Four Subnets The previous example illustrated using a 25 bit subnet mask to divide a 24 bit address into two subnets Similarly to divide a 24 bit address into four subnets you need to borrow two host ID bits to give four possible combinations 00 01 10 and 11 The subnet mask is 26 bits 11111111 11111111 11111111 11000000 or 255 255 255 192 GS 1524 GS 1548 User s Guide Appendix A IP Addresses and Subnetting Each subnet contains 6 host ID bits giving 29 2 or 62 hosts for each subnet a host ID of all zeroes is the subnet itself all ones is the subnet s broadcast address Table 77 Subnet 1 IP SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUE IP Address Decimal 192 168 1 0 IP Address Binary 11000000 10101000 00000001 00000000 Subnet Mask Binary 11111111 11111111 11111111 11000000 Subnet Address Lowest Host ID 192 168 1 1 192 168 1 0 Broadcast Address Highest Host ID 192 168 1 62
130. screen Table 51 SNMP Trap Station LABEL DESCRIPTION Trap Station ID Select the SNMP trap station you want to edit Create New Trap Station Click this to configure a new SNMP Trap Station Trap Station ID This field indicates the trap station number It is used for identification only Click on the individual trap station number to edit the trap station settings Remote IP This field displays the IP address of the remote SNMP management Address station Community An SNMP community string is a text string that acts as a password It is String used to authenticate messages that are sent between the management station the SNMP manager and the device the SNMP agent The community string is included in every packet that is transmitted between the SNMP manager and the SNMP agent This field displays the community string of this remote trap station Previous Use these navigation links to browse all of your SNMP groups Page Next Page GS 1524 GS 1548 User s Guide Chapter 18 SNMP 18 6 1 SNMP Trap Station Create Click on the Create New Trap Station link in the SNMP Trap Station screen to add an SNMP Trap Station The screen displays as shown Figure 72 SNMP Trap Station Create SNMP Trap Station Help iRemote IP Address Community String public Create Cancel The following table describes the labels in this screen Table 52 SNMP Trap Station
131. se one of the predefined choices A right angle bracket gt within a screen name denotes a mouse click For example Maintenance gt Log gt Log Setting means you first click Maintenance in the navigation panel then the Log sub menu and finally the Log Setting tab to get to that screen Units of measurement may denote the metric value or the scientific value For example k for kilo may denote 1000 or 1024 M for mega may denote 1000000 or 1048576 and so on e e g is a shorthand for for instance and i e means that is or in other words GS 1524 GS 1548 User s Guide 5 Document Conventions Icons Used in Figures Figures in this User s Guide may use the following generic icons The Switch icon is not an exact representation of your device The Switch Computer Notebook computer Nemesis c Nem Server Firewall M S SS EJ P SEED poe m mE gsx eI A Telephone Router ma ew SN F AS 6 GS 1524 GS 1548 User s Guide Safety Warnings Safety Warnings Do NOT use this product near water for example in a wet basement or near a swimming pool Do NOT expose your device to dampness dust or corrosive liquids Do NOT store things on the device Do NOT install use or service this device during a thunderstorm There is a remote risk of electric shock from lightning Connect ONLY suitable accessories to the
132. shows the number of packets for which transmission failed because of excessive collision QLength This field shows the number of packets currently buffered RX The following fields display detailed information about packets received Octets This field shows the number of octets received UnicastPkts This field shows the number unicast packets received NonUnicastPkts This field shows the number of non unicast packets received Discards This field shows the number discarded dropped packets Errors This field shows the number of undersize oversize fragmented or FCS error packets received UnknownProtos This field shows the number of packets received with unknown protocols Summary The following fields display a summary of types of errors and size of packets transmitted received Drop Events This is a count of dropped packets due to GBP or backpressure buffer overflow MulticastPkts This is a count of transmitted received multicast packets BroadcastPkts This is a count of transmitted received broadcast packets UndersizePkts This is a count of transmitted received packets with length less than the minimum packet size OversizePkts This is a count of transmitted received packets with length more than the maximum packet size Fragments This is a count of transmitted received packets that were too short shorter than 64 octets with invalid FCS or alignment errors
133. sly untagged from a port with the specified VID 8 2 1 IEEE 802 1Q VLAN Screen Use this screen to display IEEE 802 1Q VLAN status Click VLAN in the navigation panel to display the IEEE 802 1Q VLAN screen as shown next Figure 33 VLAN VLAN Status IEEE 802 1Q VLAN Help VLANID 7 Create New VLAN VLAN ID Member ports tag egress packet E Untag egress packet erfunfoa eco of on s fr re rr fps GS 1524 GS 1548 User s Guide Chapter 8 VLAN The following table describes the labels in this screen Table 12 VLAN VLAN Status LABEL DESCRIPTION VLAN ID Select which VLAN you want to configure or click Create New VLAN to go to the new VLAN configuration screen VLAN Status This table shows you the existing VLANs and their configurations Table VLAN ID Click on the VLAN ID to go to the VLAN edit screen Member Ports All the ports participating in the VLAN are listed here The ports show up in two different colors Orange When the packet leaves this member port the VLAN tag is added Turquoise When the packet leaves this member port the VLAN tag is removed Previous Page Click this button to view VLANs with lower identification numbers This field is only active if there are more VLANs than can be displayed on one screen Next Page Click this button to view VLANs with higher identification numbers This field is only active if there are m
134. ss IP Address Gateway Configure IP Address Network Submask Apply 192 168 1 34 255 255 255 0 0 0 0 0 The following table describes the labels in this screen Table 6 Configure IP Address LABEL DESCRIPTION IP Address Enter the IP address of your Switch in dotted decimal notation For example 192 168 1 1 Network Submask Enter the IP subnet mask of your Switch in dotted decimal notation for example 255 255 255 0 Gateway Enter the IP address of the default outgoing gateway in dotted decimal notation for example 192 168 1 5 GS 1524 GS 1548 User s Guide Chapter 5 System 5 1 2 Layer 2 L2 Table Aging L2 Table Aging defines the aging time of the Address Resolution Logic ARL table This table learns and remembers MAC addresses of devices sending information through it See Chapter 13 on page 83 for more background information Click the link in the L2 Table Aging field to see the screen as shown next Figure 23 Configure L2 Table Aging L2 Table Aging Enable L2 Table Aging Aging Time seconds Setting to 0 also disables aging Apply Select the Enable L2 Table Aging checkbox and enter the amount of time in seconds up to 1048575 that the Switch remembers MAC address entries Select 0 to disable L2 table aging Click Apply to save your configuration changes 5 1 3 Backup Settings Backing up your Switch configurations allows yo
135. st packets received in Packets this polling sample CRCAlign This field displays the number of packets between 64 1518 octets Errors long dropped in this polling sample because they either had bad Frame Check Sequence FCS or non integral number of octets alignment error GS 1524 GS 1548 User s Guide Chapter 19 RMON Lite Table 59 RMON History Statistics Control continued LABEL DESCRIPTION Undersize Packets This field displays the number of packets including bad packets received in this polling sample that were between 0 and 64 octets in length Oversize Packets This field displays the number of untagged packets including bad packets received in this polling sample that were greater than 1518 octets in length Fragments This field displays the number of frames dropped in this polling sample because they were less than 64 octets long and contained an invalid FCS including non integral and integral lengths Jabbers This field displays the number of frames dropped in this polling sample because they were longer than 1518 octets and contained an invalid FCS including alignment errors Collisions This field displays the total number of collisions that occurred in this polling sample Utilization 96 This field displays the utilization as a percentage of maximum utilization allowed on the port in this polling sample History Statistics Overview
136. stored in a retrieval system translated into any language or transmitted in any form or by any means electronic mechanical magnetic optical chemical photocopying manual or otherwise without the prior written permission of ZyXEL Communications Corporation Published by ZyXEL Communications Corporation All rights reserved Disclaimer ZyXEL does not assume any liability arising out of the application or use of any products or software described herein Neither does it convey any license under its patent rights nor the patent rights of others ZyXEL further reserves the right to make changes in any products described herein without notice This publication is subject to change without notice Trademarks ZyNOS ZyXEL Network Operating System is a registered trademark of ZyXEL Communications Inc Other trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners Certifications Federal Communications Commission FCC Interference Statement This device complies with Part 15 of FCC rules Operation is subject to the following two conditions This device may not cause harmful interference GS 1524 GS 1548 User s Guide Appendix B Legal Information This device must accept any interference received including interference that may cause undesired operations FCC Warning This device has been tested and found to comply with the limits for a Cl
137. t of the Switch via Internet browser Use Internet Explorer 6 0 and later or Netscape Navigator 7 0 and later versions The recommended screen resolution is 1024 by 768 pixels In order to use the web configurator you need to allow Web browser pop up windows from your device Web pop up blocking is enabled by default in Windows XP SP Service Pack 2 JavaScript enabled by default Java permissions enabled by default Note This User s Guide shows screens from the GS 1524 unless otherwise specified 4 2 System Login 1 Start your web browser 2 Type http and the IP address of the Switch for example the default is 192 168 1 1 in the Location or Address field Press ENTER GS 1524 GS 1548 User s Guide 35 Chapter 4 The Web Configurator 3 The login screen appears The default username is admin and the associated default password is 1234 Figure 16 Web Configurator Login GS 1524 Welcome to GS 1524 Enter User Name Password and click to login User Name Password Reset 4 Click Login to view the first web configurator screen 4 3 The Status Screen The System screen is the first screen that displays when you access the web configurator The following figure shows the navigating components of the web configurator screen Figure 17 Web Configurator Home Screen System Device Name 68 1524 Firmware Version 1 12 AYD 0 b1 Upgrade Build Date Thu May 17 18 43 07
138. the validation process Default state of all ports is untrusted Select the trusted ports for each Dynamic ARP configuration you set up Enable Select the range of VLANs you want to perform validation checks based on Dynamic the ARP entries in the ARP table ARP for VLAN from to GS 1524 GS 1548 User s Guide Chapter 20 Dynamic ARP Table 66 ARP Table continued LABEL DESCRIPTION Disable Select the range of VLANs you want to bypass validation checks based on Dynamic the ARP entries in the ARP table ARP for VLAN from to Current This field shows the VLANs for which Dynamic ARP validation is enabled Enabled VLAN Apply Click this to save your settings to the Switch 20 3 Viewing ARP Table Entries Click Dynamic ARP gt ARP Entries in the navigation panel to open the following screen Use this screen to view and add entries to the ARP table Figure 87 Viewing ARP Table Entries Dynamic ARP Refresh Help Static MAC IP binding ADD item i MAC Address IP Address VLAN Type Delete 1 OA 02 03 AA BB 12 192 158 1 37 1 static DELETE The following table describes the labels in this screen Table 67 ARP Table LABEL DESCRIPTION Static MAC This field is only available when you enable dynamic ARP in the Dynamic IP binding ARP gt Settings screen Click ADD to add a static entry to the ARP table ADD See Section 20 4 on pa
139. tistics Control RMON Lite RMON MIB Table 2 History Statistics j Apply Help RMON History Statistics Control Index 14 Refresh Help Utilization Sample Drop S tects Packets P 9adcast Multicast CRCAlign Undersize Oversize Fragments Jabbers Collisions i Index Events Packets Packets Errors Packets Packets t 2 0 o 0 0 0 0 D 0 0 Hm i m 2 0 0 0 f 0 0 D 0 0 0 3 0 o o0 0 0 0 0 0 0 aE g 9 History Statistics Overview The following table describes the labels in this screen Table 59 RMON History Statistics Control LABEL DESCRIPTION RMON MIB Use this drop down list box to select the MIB table you want to view Click Table Apply to refresh the screen to the selected MIB table view Refresh Click this to update all the fields in the RMON History Statistics Control Index screen Sample Index This field displays the index number of the polling sample collected on the port Drop Events This field displays the total number of packets that were dropped in this polling sample Octets This field displays the total number of octets received in this polling sample Packets This field displays the total number of all good packets received in this polling sample Broadcast This field displays the total number of good broadcast packets received in Packets this polling sample Multicast This field displays the total number of good multica
140. tistics gathered for this port It displays the results in the Value column StatsDropEvents This field displays the total number of packets that were dropped StatsOctets This field displays the total number of octets received StatsPkts This field displays the total number of all good packets received StatsBroadcastPkts This field displays the total number of good broadcast packets GS 1524 GS 1548 User s Guide received Chapter 19 RMON Lite Table 55 RMON Statistics Port continued LABEL DESCRIPTION StatsMulticastPkts This field displays the total number of good multicast packets received StatsCRCAlignErrors This field displays the number of packets between 64 1518 octets long dropped because they either had bad Frame Check Sequence FCS or non integral number of octets alignment error StatsUndersizePkts This field displays the number of packets including bad packets received that were between 0 and 64 octets in length StatsOversizePkts This field displays the number of untagged packets including bad packets received that were greater than 1518 octets in length StatsFragments This field displays the number of frames dropped because they were less than 64 octets long and contained an invalid FCS including non integral and integral lengths Stats abbers This field displays the number of frames dropped because they were longer than 1518
141. to go out on the port Burst Size The burst size specifies the maximum amount of traffic that can be allowed out the port at any one instance In the Token Bucket algorithm this is referred to as the size of the bucket as this value limits the number of tokens that can accumulate in the bucket Apply Click this to save your changes to the Switch 12 1 2 Broadcast Storm Control Setup Broadcast storm control limits the number of broadcast multicast and unknown unicast also referred to as Destination Lookup Failure or DLF packets the Switch receives per second on the ports When the maximum number of allowable broadcast multicast and unknown unicast packets is reached per second the subsequent packets are discarded Enable this feature to reduce broadcast multicast and unknown unicast packets in your network GS 1524 GS 1548 User s Guide Chapter 12 Port Rate Limit and Storm Control Click Rate Storm Control in the navigation panel to display the screen as shown next Figure 46 Broadcast Storm Control Storm Control Help Port oi zl Iv Apply settings to all ports Storm Control Type Broadcast and unknown unicast 7 Storm Control Rate fio pps 7 Apply Current Setting Port Storm Control Type Storm Control Rate 01 Broadcast and unknown unicast 10 pps 02 Broadcast and unknown unicast 10 pps 03 Broadcast and unknown
142. tory Statistics Contral edenda tenente dadas oua ke ating 128 19S REMON Alarmi LOUBIVIGUE oscepnsenseeriM a porca db b Quot i 129 19 5 1 RMON Alarm Create New Alarm sarissa 130 19 6 ell OVIEN METTI 132 19 5 1 RMON Event Create New Eveni 6e ec nre riter tbe eee Pre dete cci ERE pEEs 133 19 BRNON Evont Log VBPVIBW n ena epa Gad cca ads n ER bb d UP Dd dat N 134 LACE RMON Evam LOD EREMI sarraa ENERE 135 Chapter 20 Dynamit ARP ssiri ee oaiae anean da aa varesi 137 CON ARP Tale OVENI p P 137 ORT TARF TOO ENTES met E tandeaunkysans 137 20 1 2 How Dynamic ARF WORKS acssssecconseece tone peo eccoe etes c cR EEA 137 Eus Ensblm Dynan VP sass shassnis taedia t ach Y ao ei a poca ue adc du dd aec 138 IESU aai i i o 0 EEUU 139 20 4 Adding ARP Table Enies cosciente tenen tete ce Erates cR tec cui deae cu Era cR E ecd 140 Chapter 21 ll 141 21 1 Power Hardware Connections and LEDS eren 141 Ecc eif eec Roper m ke Ea A Ea 142 Chapter 22 aie nci 145 22 1 Generi Su See RUDI adiere aa Ek Racekika endi a d kam d aaa Ra 145 Part IV Appendices and Index eeeeeee 151 GS 1524 GS 1548 User s Guide 15 Table of Contents Appendix A IP Addresses and Subnetting seseeeeee 153 Append B Lega A ores iuuat ipai aaa ES do
143. tton in this screen Click DELETE in Priority the Delete column to remove this IP address based QoS entry from the Delete Switch Apply Click this when you have reviewed the changes you want to make and you Change want to save them to the Switch s memory Settings GS 1524 GS 1548 User s Guide Port Rate Limit and Storm Control This chapter shows you how you can manage bandwidth on each port and set up broadcast storm control settings using the Port Rate and Storm Control screens 12 1 Port Rate Screen Rate control means defining a maximum allowable bandwidth for incoming and or out going traffic flows on a port Click Rate Port Rate in the navigation panel to bring up the screen as shown next Figure 44 Port Rate Limit Port Rate Help Port Ingress Egress Port Ingress Egress Rate Rate Rate Rate 01 NoLimit No Limit 13 No Limit No Limit 02 No Limit No Limit 14 No Limit No Limit 03 NoLimit No Limit 15 No Limit No Limit 04 NoLimit NoLimit 16 NoLimit No Limit 05 NoLimit No Limit 17 No Limit No Limit 06 NoLimit No Limit 18 No Limit No Limit OZ NoLimit No Limit 19 No Limit No Limit 08 NoLimit No Limit 20 No Limit No Limit 09 NoLimit No Limit 21 No Limit No Limit 10 NoLimit No Limit 22 No Limit No Limit 11 NoLimit NoLimit 23 NoLimit No Limit 12 NoLimit NoLim
144. u to create various snap shots of your device from which you may restore at a later date Back up your current Switch configuration to a computer using the Backup Settings link Follow the steps below to back up the current Switch configuration 1 Click Backup 2 Click Save to display the Save As screen 3 Choose a location to save the file on your computer from the Save in drop down list box and type a descriptive name for it in the File name list box Click Save to save the configuration file to your computer GS 1524 GS 1548 User s Guide Chapter 5 System 5 1 4 Restore Settings Restore a previously saved configuration from your computer to the Switch using the Restore Settings screen Figure 24 Restore Settings Restore Settings Please select a saved configuration file Browse Restore Type the path and file name of the configuration file you wish to restore in the Please select a saved configuration file text box or click Browse to display the Choose File screen from which you can locate it After you have specified the file click Restore Make sure you are using the proper configuration when you are restoring your configuration The file name extension should be cfg If you attempt to restore a wrong configuration file the following error message appears Figure 25 Restore Configuration Error Restore Settings ERROR Invalid format or version not matched Retry
145. unicast 10 pps 04 Broadcast and unknown unicast 10 pps 05 Broadcast and unknown unicast 10 pps 06 Broadcast and unknown unicast 10 pps 07 Broadcast and unknown unicast 10 pps 08 Broadcast and unknown unicast 10 pps 09 Broadcast and unknown unicast 10 pps 10 Broadcast and unknown unicast 10 pps 11 Broadcast and unknown unicast 10 pps 12 Broadcast and unknown unicast 10 pps 13 Broadcast and unknown unicast 10 pps 14 Broadcast and unknown unicast 10 pps 15 Broadcast and unknown unicast 10 pps 16 Broadcast and unknown unicast 10 pps 17 Broadcast and unknown unicast 10 pps 18 Broadcast and unknown unicast 10 pps 19 Broadcast and unknown unicast 10 pps 20 Broadcast and unknown unicast 10 pps 21 Broadcast and unknown unicast 10 pps 22 Broadcast and unknown unicast 10 pps 23 Broadcast and unknown unicast 10 pps 24 Broadcast and unknown unicast 10 pps GS 1524 GS 1548 User s Guide Chapter 12 Port Rate Limit and Storm Control The following table describes the labels in this screen Table 24 Broadcast Storm Control LABEL DESCRIPTION Port Select the port number for which you want to configure storm control settings or select Apply settings to all ports to configure all the ports at once Storm Control Select Type Disabled to turn off this feature Broadcast only to only specify a limit for the amount of broadcast packets received per second Broadcast and multicast to s
146. ure 30 Port Configuration PORT Configuration Help z Auto Speed Flow Default Por Negotiate Duplex Control Priority bin 01 Enable Enable E Mbp Bisebie gt o f The following table describes the labels in this screen Table 9 Port Configuration LABEL DESCRIPTION Port This is the port index number Admin Select Enable to activate the port or Disable to deactivate the port Auto Negotiate Select Enable and the port will negotiate the speed duplex mode and flow control settings with the peer port If the peer port does not support auto negotiation or turns off this feature the Switch determines the connection speed by detecting the signal on the cable and using half duplex mode Select Disable to configure the port settings manually When the Switch s auto negotiation is turned off a port uses the pre configured speed and duplex mode when making a connection thus requiring you to make sure that the settings of the peer port are the same in order to connect Speed Duplex Select the speed and the duplex mode of the Ethernet connection on this port Choices are 10Mbps Half LOMbps Full 100Mbps Half 100Mbps Full and 1Gbps Full GS 1524 GS 1548 User s Guide Chapter 6 Port Settings Table 9 Port Configuration continued LABEL DESCRIPTION Flow Control A concentration of traffic on a port decreases port bandwidth and overflows buffer
147. working devices such as switches routers computers print servers etc Figure 1 Backbone Application 1 1 2 Bridging Example In this example application the Switch connects different company departments RD and Sales to the corporate backbone It can alleviate bandwidth contention and eliminate server and network bottlenecks All users that need high bandwidth can connect to high speed department servers via the Switch You can provide a super fast uplink connection by using a Gigabit Ethernet mini GBIC port on the Switch Moreover the Switch eases supervision and maintenance by allowing network managers to centralize multiple servers at a single location Figure 2 Bridging Application N Internet gt n m m m Sales See eee eee eee GS 1524 GS 1548 User s Guide Chapter 1 Getting to Know Your Switch 1 1 3 High Performance Switching Example The Switch is ideal for connecting two networks that need high bandwidth In the following example use trunking to connect these two networks Switching to higher speed LANs such as ATM Asynchronous Transmission Mode is not feasible for most people due to the expense of replacing all existing Ethernet cables and adapter cards restructuring your network and complex maintenance The Switch can provide the same bandwidth as ATM at much lower cost while still being able to use existing adapters and switches Moreover the current LAN structure can be retained as
148. ype Authentication can only be configured for SNMP v3 Select None to allow this user to manage the Switch without authentication or select MD5 and configure the New Key field to force this user to authenticate with the Switch Old Key Enter the old MD5 key this user used for authentication if you are setting up the key for the first time leave this field blank New Key Enter the new MD5 key this user must use to authenticate with the Switch Apply Click this to save your settings to the Switch GS 1524 GS 1548 User s Guide 113 Chapter 18 SNMP 18 4 SNMP Community SNMP communities act like passwords and are used to define the security parameters of SNMP clients in an SNMP v1 and SNMP v2c environments The default SNMP community is public for both SNMP v1 and SNMP v2c before SNMP v3 is enabled Once SNMP v3 is enabled the communities of SNMP v1 and v2c have to be unique and cannot be shared Use the SNMP Community screen to create SNMP communities and associate SNMP groups to them Click SNMP gt Community to view the screen as shown Figure 67 SNMP Community Community SNMP Community Help Community ID gt Create New Community Community ID String IP Click on Community ID to edit or remove Remote Station Group Name The following table describes the labels in this screen Table 47 SNMP Community LABEL DESCRIPTION Community ID Select

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