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Accton Technology Computer Accessories CheetahSwitch Workgroup User's Manual

1. Parameter Description GMP Status If enabled the switch will monitor network traffic to determine which hosts want to receive multicast traffic Act as IGMP Querier If enabled the switch can serve as the querier which is responsible for asking hosts is they want to receive multicast traffic Not available for the current firmware release IGMP Query Count The maximum number of queries issued for which there has been no response before the switch takes action to solicit reports IGMP Report Delay The time in minutes between receiving an IGMP Report for an IP multicast address on a port before the switch sends an IGMP Query out that port and removes the entry from its list 3 25 CheetahSwitch Workgroup 4508 IP Multicast Registration Table Use the IP Multicast Registration Table to display all the multicast groups active on this switch including multicast IP addresses and the corresponding VLAN ID VLAN ID ia Multicast IP Address 2240 02 Dynamic Port List NONE Parameter Description VLAN ID VLAN ID assigned to this multicast group Multicast IP Address IP address for specific multicast services Dynamic Port List The switch ports registered for the indicated multicast service Port Menus Port Information The Port Information screen displays the port status and link state as well as the flow control in use To change any of the port settings use the Port Configuration menu The par
2. Parameter Default Description Usage Enabled Enable this parameter to participate in an STA compliant network Priority 32 768 Device priority is used in selecting the root device root port and designated port The device with the highest priority becomes the STA root device However if all devices have the same priority the device with the lowest MAC address will then become the root device Enter a value from 0 65535 Remember that the lower the numeric value the higher the priority When the Switch Becomes Root Hele Tine E seconds Maximum Age 20 seconds Forward Delay f 5 seconds Parameter Default Description Hello Time 2 The time interval in seconds at which the root device transmits a configuration message The minimum value is 1 The maximum value is the lower of 10 or Max Message Age 2 1 Max Message Age 20 The maximum time in seconds a device can wait without receiving a configuration message before attempting to reconfigure All device ports except for designated ports should receive configuration messages at regular intervals Any port that ages out STA information provided in the last configuration message becomes the designated port for the attached LAN If it is a root port a new root port is selected from among the device ports attached to the network The minimum value is the higher of 6 or 2 x Hello Time 1 The maximum value is the lower of 40 or 2 x
3. 512 1023 Byte Frames The total number of packets including bad packets received and transmitted that were between 512 and 1023 octets in length inclusive excluding framing bits but including FCS octets 1024 1518 Byte Frames The total number of packets including bad packets received and transmitted that were between 1024 and 1518 octets in length inclusive excluding framing bits but including FCS octets 2 36 Management Guide Using the Address Table The Address Table contains the MAC addresses and VLAN identifiier associated with each port that is the source port associated with the address and VLAN The address table provides search options for a specific port address or VLAN identifier You can also clear the entire address table or information associated with a specific port address or VLAN identifier or set the aging time for deleting inactive entries The information displayed in the Address Table is indicated in the following figure and table CheetahSwitch Workgroup 4508 Unicast Address Table Aging Time 300 Dynamic Count 221 Static Count 0 MAC VID Port Status MAC VID Port Status 00 00 24 B3 28 83 1 2 D 00 00 E8 00 00 96 1 2 D 00 00 E2 12 F9 F8 1 2 D 00 00 E8 00 01 01 1 2 D 00 00 E2 16 C5 82 X 2 D 00 00 E8 02 A0 E6 1 2 D 00 00 E2 20 C3 D5 1 2 D 00 00 E8 07 12 5E 1 2 D 00 00 E2 21 74 D0O T 2 D 00 00 E8 10 00 AB 1 2 D 00 00 E8 00 00 02 1 2 D 00 00 E8 11 11 33 1 2 D 00 00 E8
4. VID Multicast IP Dynamic Port Lists Learned by 1 225 1 1 1 10010110 5 225 1 1 2 11001001 Sorted by VID Multicast IP Multicast IP Use lt TAB gt or arrow keys to move lt Enter gt to select CheetahSwitch Workgroup 4508 IP Multicast Registration Table E i More lt OK gt Parameter Description VID VLAN ID assigned to this multicast group Multicast IP IP address for specific multicast services Dynamic Port Lists The switch ports registered for the indicated multicast service Learned by Indicates the manner in which this address was learned Dynamic or IGMP Show Displays the address table sorted on VID and then Multicast IP More Scrolls through the entries in the address table 2 38 Management Guide Configuring Static Unicast Addresses Use the Static Unicast Address Table Configuration screen to manually configure host MAC addresses in the unicast table You can use this screen to associate a MAC address with a specific VLAN ID and switch port as shown below CheetahSwitch Workgroup 4508 Static Unicast Addreeess Table Configuration VID MAC Address Port Status 1 00 00 00 E8 43 12 1 Permanent Sorted by VID MAC VID 1 MAC 00 00 00 00 00 00 VID EL Port 1 MAC 00 00 00 00 00 00 Status Permanent Show More Set lt OK gt Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description VID The VLAN g
5. duplicate or mirror all the traffic happening on the monitored port Status Enables or disables the mirror function IGMP Multicast Filtering Multicasting is used to support real time applications such as video conferencing or streaming audio A multicast server does not have to establish a separate connection with each client It merely broadcasts its service to the network and any hosts which want to receive the multicast register with their local multicast switch router Although this approach reduces the network overhead required by a multicast server the broadcast traffic must be carefully pruned at every multicast switch router it passes through to ensure that traffic is only passed on the hosts which subscribed to this service This switch uses IGMP Internet Group Management Protocol to query for any attached hosts who want to receive a specific multicast service The switch looks up the IP Multicast Group used for this service and adds any port which received a similar request to that group It then propagates the service request on to any neighboring multicast switch router to ensure that it will continue to receive the multicast service For more information see IGMP Snooping and IP Multicast Filtering in Chapter 4 2 23 CheetahSwitch Workgroup 4508 Configuring IGMP This protocol allows a host to inform its local switch router that it wants to receive transmissions addressed to a specific multicast grou
6. gt AB 102 SG Signal Ground 5 5 C e CC 107 DSR Data Set Ready 6 6 6 CA 105 RTS Request to Send 7 7 4 CB 106 CTS Clear to Send 8 8 5 eos CE 125 RI Ring Indicator 9 9 22 Kee Connection from Switch s Serial Port to PC s 9 Pin COM Port Switch s 9 Pin PC s 9 Pin Serial Port CCITT Signal COM Port 1DCD DCD 1 2 RXD PD 3 3 XD RXD gt 2 4DR DSR gt 6 5SGND SGND 5 6DSR DR 4 TRIS CTS gt 8 8 CTS Lu Ris 7 9RE of Rl 9 B 1 CheetahSwitch Workgroup 4508 Connection from Switch s Serial Port to Modem s 25 Pin DCE Port Switch s 9 Pin F Modem s 25 Serial Port CCT Signal 51 com port 1 lt DCD 8 2 J Do 3 i DTO gt 2 eo DTR gt 20 E o SGND 7 6 lt DSR 6 7 E RTS gt 4 8 lt CTS 5 9 lt s Ri 22 Connection from Switch s Serial Port to PC s 25 Pin DTE Port Switch s 9 Pin Serial Null Modem PC s 25 Pin DTE Port Port 1 DCD 1 1 8 DCD 2 RXD 2 3 13 TXD 3 TXD 3 2 2 RXD 4 DTR 4 TT 8 20 DIR 5 SGND 5 Te 20 7 SGND 6 DSR 6 wa 7 6 DSR 7 RTS 7 4 4 RTS 8 CTS 9 5 5 CTS 9 RI 20 _ _ 6 22 RI ES4508 E022000 R01 150065 102
7. path between devices Therefore lower values should be assigned to ports attached to faster media and higher values assigned to ports with slower media The default and recommended range is Standard Ethernet 100 50 600 Fast Ethernet 19 10 60 Gigabit Ethernet 4 3 10 The full range is 0 65535 Note Path cost takes precedence over port priority 3 16 Parameter Default Management Guide Description Fast STA Mode Disabled This enables disables the Fast STA Mode for the port In this mode ports skip the Blocked Listening and Learning states and proceed straight to Forwarding The Fast STA Mode enables end node workstations and servers to overcome time out problems when the Spanning Tree Algorithm is implemented in a network Therefore the Fast STA Mode should only be enabled for ports that are connected to an end node device Configuring Bridge MIB Extensions The Bridge MIB includes extensions for managed devices that support Traffic Classes and Virtual LANs To display the switch s support for these extensions use the Extended Bridge Configuration screen as shown below Bridge Capability Extended Multicast Filtering Services No Traffic Classes Yes Static Entry Individual Port Yes VLAN Learning IVL Configurable PVID Tagging Yes Local VLAN Capable No Parameter Description Extended Multicast Filtering Services The switch does not support the filtering of individual mul
8. The Logon screen will then appear XModem Download to DRAM buffer area 0x00200000 SUCCESS Verifying image in DRAM download buffer 0x00200000 SUCCESS Update FlashROM Image at 0x02880000 SUCCESS D ownload another Image or S tart Application S s Change Baud Rate to 19200 and Press lt ENTER gt For details on managing the switch refer to Chapter 2 for information on the out of band console interface or Chapter 3 for information on the Web interface A 2 Appendix B Pin Assignments DB9 Serial Port Pin Description The DB9 serial port on the switch s rear panel is used to connect the switch to a management device The on board menu driven configuration program can be accessed from a terminal a PC running a terminal emulation program or from a remote location via a modem connection You can use the management port to configure port settings e g enabled or disabled or to update device firmware The pin assignments used to connect various device types to the switch s management port are provided in the following tables DB9 Port Pin Assignments Switch s PC DB9 Modem Signal aaa ane Description DB9 DTE DTE DB25 DCE Direction Pin Pin Pin DTE DCE CF 109 DCD Data Carrier Detected 1 1 8 lt BB 104 RxD Received Data 2 2 3 dn BA 103 TxD Transmitted Data 3 3 2 gt CD 108 2 DTR Data Terminal Ready 4 4 20
9. 00 00 18 1 2 D 00 00 E8 12 00 69 1 2 D 00 00 E8 00 00 1A L 2 D 00 00 E8 12 24 60 1 2 D Sorted by MAC VID Cleared by MAC VID VLAN ID 1 VLAN ID a2 MAC 00 00 00 00 00 00 MAC 00 00 00 00 00 00 Show More Clear Clear ALL lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description Aging Time Time out period in seconds for aging out dynamically learned forwarding information Range 10 458 seconds Default 300 seconds Dynamic Count The number of dynamically learned addresses in the table Static Count The number of static addresses in the table MAC The MAC address of a node VID The VLAN s associated with this address or port Port The port whose address table includes this MAC address Status Indicates address status as D Dynamically learned or P Fixed permanently by SNMP network management software Show Displays the address table based on specified VLAN ID and sorted by primary key MAC or VID More Scrolls through the entries in the address table Clear Clears the specified MAC address Clear All Clears all MAC addresses in the table 2 37 CheetahSwitch Workgroup 4508 Displaying the IP Multicast Registration Table Use the IP Multicast Registration Table to display all the multicast groups active on this switch including multicast IP addresses and the corresponding VLAN ID VID Show
10. Duplex Z M Enable 8 M Enable 1000M Full Duplex z I Enable Parameter Default Description Admin Status Enable Allows you to disable a port due to abnormal behavior e g excessive collisions and then re enable it after the problem has been resolved You may also disable a port for security reasons Duplex Mode 1000M Full Duplex Used to set the duplex mode to full duplex or auto negotiation The default for all ports is to force full duplex Flow Control Enable Used to enable or disable flow control Flow control can eliminate frame loss by blocking traffic from end stations or segments connected directly to the switch when its buffers fill Standard IEEE 802 3x full duplex flow control is used 3 27 CheetahSwitch Workgroup 4508 Port Mirroring Configuration You can mirror the traffic from a target port to an analysis port for real time analysis You can then attach a logic analyzer or RMON probe to the analysis port and study the traffic crossing target port in a completely unobtrusive manner When mirroring a port note that the analysis port must be included in the same VLAN as the monitored port Use Port Monitoring Configuration to set up analysis ports as shown below Capturing Frames to the Analyzer port Il Enable Analyzer Port None Monitored Port None Parameter Description Capturing State Enables or disables the mirror function Analyzer Port The port tha
11. Forward Delay 1 3 15 CheetahSwitch Workgroup 4508 Parameter Default Description Forward Delay 15 STA Port Configuration The maximum time in seconds the root device will wait before changing states i e listening to learning to forwarding This delay is required because every device must receive information about topology changes before it starts to forward frames In addition each port needs time to listen for conflicting information that would make it return to a blocking state otherwise temporary data loops might result The maximum value is 30 The minimum value is the higher of 4 or Max Message Age 2 1 The following figure and table describe STA configuration for ports Port Priority Path Cost Fast STA Mode 1 ifize E I Enable 2 fi 28 ja I Enable 3 128 a I Enable 4 128 4 I Enable 5 128 a lM Enable 6 128 a I Enable 7 128 j TM Enable 8 128 a TM Enable Parameter Default Description Priority 128 Defines the priority for the use of a port in the STA algorithm If the path cost for all ports on a switch are the same the port with the highest priority i e lowest value will be configured as an active link in the spanning tree Where more than one port is assigned the highest priority the port with lowest numeric identifier will be enabled The range is 0 255 Path Cost 100 19 4 This parameter is used by the STA algorithm to determine the best
12. NONE 1000 FULL Ts 1000SX YES DOWN NONE 1000 FULL 8 1000SxX YES UP 802 3x 1000 FULL lt OK gt Use lt TAB gt or arrows keys to move lt Enter gt to select Parameter Description Type Shows port type as 1000BASE SX Operational Shows if the port is functioning or not Link Indicates if the port has a valid connection to an external device FlowControl InUse Shows the flow control type in use Flow control can eliminate frame loss by blocking traffic from end stations connected directly to the switch IEEE 802 3x flow control is used for full duplex Speed and DuplexInUse Displays the current port speed and duplex mode used Using the Spanning Tree Algorithm The Spanning Tree Algorithm can be used to detect and disable network loops and to provide backup links between switches bridges or routers This allows the switch to interact with other bridging devices that is STA compliant switch bridge or router in your network to ensure that only one route exists between any two stations on the network For a more detailed description of how to use this algorithm refer to Spanning Tree Algorithm in Chapter 4 CheetahSwitch Workgroup 4508 Spanning Tree Configuration Selection Menu STA Bridge Configuration STA Port Configuration lt OK gt Use lt TAB gt or arrows keys to move lt Enter gt to select 2 17 CheetahSwitch Workgroup 4508 Configuring Bridge STA The following figure and t
13. Parameter Description Download Mode You can download to permanent flash ROM or temporary storage in RAM for test purposes Note that if you download to temporary memory this firmware will be lost upon power off Server IP Address IP address of a TFTP server File Name The ES4508 binary file to download Start TFTP Download Issues request to TFTP server to download the specified file CheetahSwitch Workgroup 4508 Address Table Configuration The Address Table contains the MAC addresses associated with each port that is the source port associated with the address The address table provides search options for a specific port or address You can also clear the entire address table or information associated with a specific port or address or set the aging time for deleting inactive entries The information displayed in the Address Table is indicated in the following figure and table Aging Time 0 10 458 300 Seconds Address Table Sort by Address z Address Table New Static Address 00024 532883 VLAN 1 Port 3 Dynamic 000E2 16C582 VLAN 1 Port 3 Dynamic 000E2 20C3D5 VLAN 1 Port 3 Dynamic 0 0 0 000E2 2174D0 VLAN 1 Port 3 Dynamic f 000E8 000002 VLAN 1 Port 3 Dynamic lt lt Add MAC Address 000E8 000007 VLAN 1 Port 3 Dynamic L _1 000E8 00000E VLAN 1 Port 3 Dynamic _Remove_ VLAN 1 2048 0 0 0 0 0 gl 000E8 000018 VLAN 1 Port 3 Dynamic Cle
14. Parameter Description Filtering Status Enables disables Broadcast Storm Control for the port When enabled broadcast packets are discarded if the packets per second threshold rate is exceeded The default is disabled Filtering Threshold The broadcast rate threshold above which broadcast packets are discarded The default is 10240 packets per second Range is 1024 353 422 pps 3 32 Chapter 4 Advanced Topics Spanning Tree Algorithm The Spanning Tree Algorithm that is the STA configuration algorithm as outlined in IEEE 802 1D can be used to detect and disable network loops and to provide link backup This allows the switch to interact with other bridging devices including STA compliant switches bridges or routers in your network to ensure that only one route exists between any two stations on the network If redundant paths or loops are detected one or more ports are put into a blocking state stopped from forwarding packets to eliminate the extra paths Moreover if one or more of the paths in a stable spanning tree topology fail this algorithm will automatically change ports from blocking state to forwarding state to re establish contact with all network stations The STA uses a distributed algorithm to select a bridging device STA compliant switch bridge or router that serves as the root of the spanning tree network It selects a root port on each bridging device except for the root device which incurs the lowest
15. Space gt to scroll options Parameter Default Description Type Shows port type as 1000BASE SX Admin ENABLED Allows you to disable a port due to abnormal behavior e g excessive collisions and then re enable it after the problem has been resolved You may also disable a port for security reasons Flow Control ON Used to enable or disable flow control Flow control can eliminate frame loss by blocking traffic from end stations or segments connected directly to the switch when its buffers fill Back pressure is used for half duplex and IEEE 802 3x for full duplex Note that flow control should not be used if a port is connected to a hub Speed and Duplex 1000 FULL Indicates the current port speed and duplex mode 1000 FULL or AUTO Although ports on the switch can be set for auto negotiation operation is restricted to 1000 Mbps full duplex Management Guide Viewing the Current Port Configuration The Port Information screen displays the port type status link state and flow control in use To change any of the port settings use the configuration menu CheetahSwitch Workgroup 4508 Port Information Port 1 8 Port Type Operational Link FlowControl Speed and InUse Duplex InUse Ly 1000SxX YES DOWN 802 3x 1000 FULL Die 1000SxX YES DOWN NONE 1000 FULL Bis 1000SxX YES UP 802 3x 1000 FULL 4 1000SX YES DOWN NONE 1000 FULL Bs 1000SxX YES DOWN 802 3x 1000 FULL 6 1000SX YES UP
16. Up to 2048 VLANs are supported by the IEEE 802 1Q protocol but this switch only supports 16 VLANs Therefore if this switch is attached to any device that forwards frames with unknown VLAN tags or to endstations which issue VLAN registration requests for unknown VLANs this traffic will be dropped Class of Service CoS Support The CheetahSwitch Workgroup 4508 provides two transmit queues on each port with a weighted round robin scheme This function can be used to provide independent priorities for various types of data such as real time video or voice and best effort data Priority assignment to a packet in the CheetahSwitch is accomplished through explicit assignment by end stations which have applications that require a higher priority than best effort This switch utilizes the IEEE 802 1p and 802 1Q tag structure to decide priority assignments for the received packets IGMP Snooping and IP Multicast Filtering The Internet Group Management Protocol IGMP runs between hosts and their immediately neighboring multicast router switch The protocol s mechanisms allow a host to inform its local router switch that it wants to receive transmissions addressed to a specific multicast group A router or multicast enabled switch can periodically ask their hosts is they want to receive multicast traffic If there is more than one router switch on the LAN performing IP multicasting one of these devices is elected querier and assumes t
17. also describes how to access the embedded Web agent over the network using any standard browser or with AccView network management software or other third party management software Onsite Connection Attach a VT100 compatible terminal or a PC running a terminal emulation program to the serial port on the switch s rear panel Use the null modem cable provided with this package or use a null modem connection that complies with the wiring assignments shown in the back of this guide When attaching to a PC set terminal emulation type to VT100 specify the port used by your PC i e COM 1 4 and then set communications to 8 data bits 1 stop bit no parity and 19200 bps for initial configuration Also be sure to set both handshaking and flow control to none Modem Connection Configure the Switch Site Connect the switch s DB 9 serial port to the modem s serial port using standard cabling For most modems which use a 25 pin port you will have to provide an RS 232 cable with a 9 pin connector on one end and a 25 pin connector on the other end You do not have to set the modem at the switch s site because the switch will automatically configure it to auto answer mode Configure the Remote Site At the remote site connect the PC s COM port COM 1 4 to the modem s serial port Set terminal emulation type to VT100 specify the port used by your PC i e COM 1 4 and then set communications to 8 data bits 1 stop bit
18. be an ES4508 binary file from Accton otherwise the agent will not accept it The success of the upload operation depends on the quality of the network connection After downloading the new software the agent will automatically restart itself Parameters shown on this screen are indicated in the following figure and table Upload Mode Permanent 7 File Name Browse Start Web Upload Parameter Description Upload Mode You can upload to permanent flash ROM or temporary storage in RAM for test purposes Note that if you download to temporary memory this firmware will be lost upon power off 3 10 Management Guide Parameter Description File Name The ES4508 binary file to download Use the Browse button to locate the firmware file Start Web Upload Issues request to TFTP server to download the specified file TFTP Download Management Use the TFTP Download Management menu to load software updates into the switch The download file should be an ES4508 binary file from Accton otherwise the agent will not accept it The success of the download operation depends on the accessibility of the TFTP server and the quality of the network connection After downloading the new software the agent will automatically restart itself Parameters shown on this screen are indicated in the following figure and table Download Mode Permanent Server IP Address 10 1 150 15 File Name ram out Start TFTP Download
19. can wait without receiving a configuration message before attempting to reconfigure Forward Delay The maximum time in seconds the root device will wait before changing states i e listening to learning to forwarding 2 20 Parameter Management Guide Description Hold Time The minimum interval between the transmission of consecutive Configuration BPDUs Designated Root The priority and MAC address of the device in the spanning tree that this switch has accepted as the root device Root Cost The path cost from the root port on this switch to the root device Root Port The number of the port on this switch that is closest to the root This switch communicates with the root device through this port If there is no root port then this switch has been accepted as the root device of the spanning tree network Reconfig Counts The number of times the spanning tree has been reconfigured Topology Up Time The time since the spanning tree was last reconfigured Displaying the Current STA for Ports The parameters shown in the following figure and table are for port STA Information 1000SX 1000SX 1000SX 1000SX 1000SX 1000SX 1000SX 1000SX DIDRKHARWNHH CheetahSwitch Workgroup 4508 Spanning Tree Information Status Designated Designated Designated Cost Bridge Port forwarding 32768 128 0000e8123456 3 forwarding 32768 128 0000e8123457 1 forwarding 32768 128 0000e812
20. domains which can lead to broadcast storms in large networks that handle a lot of IPX or NetBeui traffic In conventional networks with routers broadcast traffic is split up into separate domains to confine broadcast traffic to the originating group and provide a much cleaner network environment By supporting VLANs this switch allows you to create segregated broadcast domains However note that if you need to support intra VLAN communications you must use a router or Layer 3 switch An IEEE 802 1Q VLAN is a group of ports that can be located anywhere in the network but communicate as though they belong to the same physical segment VLANs help to simplify network management by allowing you to move devices to a new VLAN without having to change any physical connections VLANs can be easily organized to reflect departmental groups such as Marketing or R amp D usage groups such as e mail or multicast groups used for multimedia applications such as video conferencing VLANs provide greater network efficiency by reducing broadcast traffic but also allow you to make network changes without having to update IP addresses or IP subnets VLANs inherently provide a high level of network security since traffic must pass through a Layer 3 switch or a router to reach a different VLAN This switch supports the following VLAN features Up to 16 VLANs based on the IEEE 802 1Q standard e Distributed VLAN learning across multiple switches using e
21. if the port is untagged or 0 if tagged Sorted by VID The VID number where the table display starts Show Displays the members for the VLAN indicated by the Sorted by VID field More Displays any subsequent VLANs if configured 2 30 Management Guide 802 1Q VLAN Static Table Configuration Use this screen to create a new VLAN or modify the settings for an existing VLAN Note that all ports can only belong to one untagged VLAN This is set to VLAN 1 by default but can be changed via the 802 1Q VLAN Port Configuration screen CheetahSwitch Workgroup 4508 1Q VLAN Static Table Configuration VID VLAN Name Status Egress Ports Forbidden Egress Ports VID 0 Show More New lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description VID The ID for the VLAN currently displayed Range 1 2048 VLAN Name A user specified symbolic name for this VLAN String length Up to 8 alphanumeric characters Status Sets the current editing status for this VLAN as Not in Service Destroy or Active Unit Stack unit Egress Ports Set the entry for any port in this field to 1 to add it to the displayed VLAN or 0 to remove it from the VLAN Forbidden Egress Ports Prevents a port from being automatically added to this VLAN via GVRP Note that GVRP is not supported by this switch Show Displays settings for
22. maximum number of Telnet sessions allowed to simultaneously Allowed Telnet Sessions access the SNMP agent Up to four sessions are supported MAC Address Physical address of the SNMP agent 2 6 IP Configuration Management Guide Use the IP Configuration screen to set the bootup option or configure the switch s IP parameters The screen shown below is described in the following table Use lt TAB gt or arrow keys to move other keys to make changes CheetahSwitch Workgroup 4508 Network Configuration IP Configuration Interface Type Ethernet IP Address 10 1 113 29 Subnet Mask 255 255 0 0 Gateway IP 10 1 0 254 IP State USER CONFIG lt APPLY gt lt OK gt lt CANCEL gt Parameter Description Interface Type Indicates IP over Ethernet IP Address IP address of the switch you are managing when accessing the SNMP agent over the network The management agent supports SNMP over UDP IP transport protocol In this environment all systems on the Internet such as network interconnection devices and any PC accessing the agent or running AccView are assigned an IP address Valid IP addresses consist of four numbers of 0 to 255 separated by periods Anything outside of this format will not be accepted by the configuration program Subnet Mask Subnet mask of the SNMP agent This mask identifies the host address bits used for routing to specific subnets Default Gateway
23. multicast address CRC Alignment Errors Undersize Frames For 10Mbps ports the counter records CRC alignment errors FCS or alignment errors For 100Mbps ports the counter records the sum of CRC alignment errors and code errors frame received with rxerror signal The total number of frames received that were less than 64 octets long excluding framing bits but including FCS octets and were otherwise well formed Oversize Frames The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS octets and were otherwise well formed Fragments The total number of frames received that were less than 64 octets in length excluding framing bits but including FCS octets and had either an FCS or alignment error 3 30 Management Guide Parameter Description Jabbers The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS octets and had either an FCS or alignment error Collisions The best estimate of the total number of collisions on this Ethernet segment 64 Byte Frames The total number of frames including bad packets received and transmitted that were 64 octets in length excluding framing bits but including FCS octets 65 127 Byte Frames The total number of frames including bad packets received and transmitted that were between 65 and 127 octets in length inclusive excluding f
24. path cost when forwarding a packet from that device to the root device Then it selects a designated bridging device from each LAN which incurs the lowest path cost when forwarding a packet from that LAN to the root device All ports connected to designated bridging devices are assigned as designated ports After determining the lowest cost spanning tree it enables all root ports and designated ports and disables all other ports Network packets are therefore only forwarded between root ports and designated ports eliminating any possible network loops Once a stable network topology has been established all bridges listen for Hello BPDUs Bridge Protocol Data Units transmitted from the Root Bridge If a bridge does not get a Hello BPDU after a predefined interval Maximum Age the bridge assumes that the link to the Root Bridge is down This bridge will then initiate negotiations with other bridges to reconfigure the network to re establish a valid network topology The following figure gives an illustration of how the Spanning Tree Algorithm Root Bridging Device assigns bridging device ports Designated Port Designated Port Root Port Root Port a an Designated Port i i a a ae Blocking _____ 4 A Port Designated Port lV Root Port Root Port Root Port Jannu Ennn Yuan 4 1 CheetahSwitch Workgroup 4508 Virtual LANs Switches do not inherently support broadcast
25. port on the switch to any of up to 16 LAN groups In conventional networks with routers broadcast traffic is split up into separate domains Switches do not inherently support broadcast domains This can lead to broadcast storms in large networks that handle traffic such as IPX or NetBeui By using IEEE 802 1Q compliant VLANs you can organize any group of network nodes into separate broadcast domains confining broadcast traffic to the originating group This also provides a more secure and cleaner network environment For more information on how to use VLANs see Virtual LANs in Chapter 4 The VLAN configuration screens are described in the following sections 802 1Q VLAN Base Information The 802 1Q VLAN Base Information screen displays basic information on the VLAN type supported by this switch CheetahSwitch Workgroup 4508 802 1Q VLAN Base Information VLAN Version Number Pa MAX VLAN ID 2048 MAX Supported VLANs 16 Current Number of 802 1Q VLANs Configured 1 lt OK gt Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description VLAN Version Number The VLAN version used by this switch as specified in the IEEE 802 1Q standard MAX VLAN ID Maximum VLAN ID recognized by this switch MAX Supported VLANs Maximum number of VLANs that can be configured on this switch Current Number of VLANs The number of VLANs currently configured on this switch Configured 2 29
26. screen Priority IEEE 802 1p defines up to 8 separate traffic classes This switch supports Quality of Service QoS by using two priority queues with weighted fair queuing for each port You can use the Priority menu to configure the default priority for each port or to display the mapping for the traffic classes as described in the following sections Port Priority Configuration The default priority for all ingress ports is zero Therefore any inbound frames that do not have priority tags will be placed in the low priority output queue Default priority is only used to determine the output queue for the current port no priority tag is actually added to the frame You can use the Port Priority Configuration screen to adjust default priority for any port as shown below 3 18 Management Guide Default Number of Port Ingress User Egress Traffic Priority Classes iit 2 2st 2 3 ibe 2 ait 2 5 it 2 6 ft 2 7 Ib 2 s p 2 Parameter Description Port Numeric identifier for switch port Default Ingress User Priority Default priority can be set to any value from 0 7 where 0 3 specifies the low priority queue and 4 7 specifies the high priority queue Number of Egress Traffic Classes Port Traffic Class Information Indicates that this switch supports two priority output queues This switch provides two priority levels with weighted fair queuing for port egress This m
27. selected port such as packet type and frame size counters Unicast Address Table Provides full listing of all unicast addresses stored in the switch as well as sort search and clear functions Multicast Address Registration Table Displays the ports that belong to each GMRP Multicast group Not implemented for this switch IP Multicast Registration Table Displays the ports that belong to each IP Multicast group Static Unicast Address Table Configuration Allows you to display or configure static unicast addresses Static Multicast Address Table Configuration Allows you to display or configure static GMRP multicast addresses Not implemented for this switch Note This switch does not support GMRP Therefore both the Multicast Address Registration Table and the Static Multicast Address Table Configuration items are not accessible 2 33 CheetahSwitch Workgroup 4508 Displaying Port Statistics Port Statistics display key statistics from the Ethernet like MIB for each port Error statistics on the traffic passing through each port are displayed This information can be used to identify potential problems with the switch such as a faulty port or unusually heavy loading The values displayed have been accumulated since the last system reboot The statistics displayed are indicated in the following figure and table EtherLike Counter Alignment Errors FCS Errors SQE Test Errors lt OK
28. the specified VLAN More Displays consecutively numbered VLANs New Sets up the screen for configuring a new VLAN 2 31 CheetahSwitch Workgroup 4508 For example the following screen displays settings for VLAN 2 which includes tagged ports 1 6 and forbidden port 8 CheetahSwitch Workgroup 4508 1Q VLAN Static Table Configuration VID VLAN Name Row Status 2 RD Active Egress Ports Forbidden Egress Ports 11111100 00000001 VID 2 Show More New lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move other keys to make changes 802 1Q VLAN Port Configuration Use this screen to configure port specific settings for IEEE 802 1Q VLAN features CheetahSwitch Workgroup 4508 802 1Q VLAN Port Configuration Port 1 8 Port PVID Acceptable Ingress GVRP GVRP Failed Frame Type Filtering Status Registrations All FALSE DISABLED All FALSE DISABLED All FALSE DISABLED FALSE DISABLED All FALSE DISABLED All FALSE DISABLED All FALSE DISABLED All FALSE DISABLED OID RWNE PRPRPPREPR D im ja 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move other keys to make changes GVRP Last PDU Origin Parameter Description PVID The VLAN ID assigned to untagged frames received on this port Use th
29. transmitted configuration messages for an interval set by the Forward Delay parameter without receiving contradictory information Port address table is cleared and the port begins learning addresses Forwarding The port forwards packets and continues learning addresses The rules defining port status are A port on a network segment with no other STA compliant bridging device is always forwarding e If two ports of a switch are connected to the same segment and there is no other STA device attached to this segment the port with the smaller ID forwards packets and the other is blocked All ports are blocked when the switch is booted then some of them change state to listening to learning and then to forwarding Forward Transitions The number of times the port has changed status to forwarding state Designated Cost The cost for a packet to travel from this port to the root in the current spanning tree configuration The slower the media the higher the cost Designated Bridge The priority and MAC address of the device through which this port must communicate to reach the root of the spanning tree Designated Port 3 14 The port on the designated bridging device through which this switch must communicate with the root of the spanning tree Management Guide Spanning Tree Configuration The following figures and tables describe Bridge STA configuration Switch Usage Enabled Priority 32768
30. 3458 1 forwarding 32768 128 0000e8123459 5 listening 32768 128 0000e812345a 6 learning 32768 128 0000e812345b 3 forwarding 32768 128 0000e8123456 3 forwarding 32768 128 0000e8123457 3 lt OK gt Use lt TAB gt or arrows keys to move lt Enter gt to select 2 21 CheetahSwitch Workgroup 4508 Parameter Description Type Shows port type as 1000SX 1000BASE SX Status Displays the current state of this port within the spanning tree Disabled Port has been disabled by the user or has failed diagnostics Blocked Port receives STA configuration messages but does not forward packets Listening Port will leave blocking state due to topology change starts transmitting configuration messages but does not yet forward packets Learning Has transmitted configuration messages for an interval set by the Forward Delay parameter without receiving contradictory information Port address table is cleared and the port begins learning addresses Forwarding The port forwards packets and continues learning addresses The rules defining port status are A port on a network segment with no other STA compliant bridging device is always forwarding If two ports of a switch are connected to the same segment and there is no other STA device attached to this segment the port with the smaller ID forwards packets and the other is blocked All ports are blocked when the switch is booted then some of them change state to listening to
31. Accton Making Partnership Work CheetahSwitch Workgroup 4508 Management Guide Accton Making Partnership Work Management Guide CheetaSwitch Workgroup 4508 Intelligent Gigabit Ethernet Switch with 8 1000BASE SX SC Ports Copyright 2000 by Accton Technology Corporation All rights reserved No part of this document may be copied or reproduced in any form or by any means without the prior written consent of Accton Technology Corporation Accton makes no warranties with respect to this documentation and disclaims any implied warranties of merchantability quality or fitness for any particular purpose The information in this document is subject to change without notice Accton reserves the right to make revisions to this publication without obligation to notify any person or entity of any such changes Accton International Headquarters USA Headquarters No 1 Creation Road Ill 6 Hughes Science based Industrial Park Irvine CA 92618 Hsinchu 300 Taiwan R O C Phone Numbers Phone 886 3 5770 270 Sales 800 926 9288 FAX 886 3 5770 267 Support 888 398 4101 or 949 707 4847 Internet support accton com tw RMA 800 762 4968 FAX 949 707 2460 Accton is a trademark of Accton Technology Corporation Other trademarks or brand names mentioned herein are trademarks or registered trademarks of their respective companies ES4508 E022000 R01 150065 102 Contents Chapter 1 Managing the Switch Configuration Op
32. Accton otherwise the agent will not accept it The success of the download operation depends on the accessibility of the TFTP server and the quality of the network connection After downloading the new software the agent will automatically restart itself Parameters shown on this screen are indicated in the following figure and table CheetahSwitch Workgroup 4508 TFTP Download Download Server IP 0 0 0 0 Download Filename es4508a bix Download Mode PERMANENT Process TFTP Download lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description Download Server IP IP address of a TFTP server Download Filename The binary file to download to the SNMP agent Download Mode You can download to Permanent flash ROM or Temporary storage in RAM for test purposes Note that if you download to temporary memory this firmware will be lost upon power off Process TFTP Download Issues request to TFTP server to download the specified file Note You can also download firmware using the Web agent see page 3 10 or a direct console connection see page A 1 2 14 Management Guide Configuring the Switch The Device Control menu is used to set the communication parameters for individual ports and to fine tune the performance of your switch by adjusting the forwarding mode flow control and specific Spanning Tree parameters Con
33. CheetahSwitch Workgroup 4508 802 1Q VLAN Current Table Information This screen shows the current port members of each VLAN and whether or not the port supports VLAN tagging Ports assigned to a large VLAN group that crosses several switches should use VLAN tagging However if you just want to create a small port based VLAN for one or two switches you can assign ports to the same untagged VLAN The current configuration is shown in the following screen CheetahSwitch Workgroup 4508 802 1Q VLAN Current Table Information Deleted VLAN Entry Counts 0 VID Creation Time Status als 0 0 day 0 hr 0 min 0 sec Permanent Current Egress Ports Current Untagged Ports 00000000 11111111 Sorted by VID 1 Show More lt OK gt Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description Deleted VLAN Entry Counts The number of times a VLAN entry has been deleted from this table VID The ID for the VLAN currently displayed Creation Time The value of sysUpTime System Up Time when this VLAN was created Status Shows that this VLAN was added to the switch as a static entry Current Egress Ports Shows the ports which have been added to the displayed VLAN group where 1 indicates that a port is a member and 0 that it is not Current Untagged Ports If a port has been added to the displayed VLAN see Current Egress Ports its entry in this field will be 1
34. Configuration 3 24 IGMP Multicast Filtering 3 25 Configuring IGMP 3 25 IP Multicast Registration Table 3 26 Port Menus 3 26 Port Information 3 26 Port Configuration 3 27 Port Mirroring Configuration 3 28 Port Statistics 3 28 Etherlike Statistics 3 28 RMON Statistics 3 30 Broadcast Storm Control 3 32 Chapter 4 Advanced Topics 4 1 Spanning Tree Algorithm 4 1 Virtual LANs 4 2 Assigning Ports to VLANs 4 2 VLAN Classification 4 3 Port Overlapping 4 3 Forwarding Tagged Untagged Frames 4 3 Forwarding Traffic with Unknown VLAN Tags 4 4 Class of Service CoS Support 4 4 IGMP Snooping and IP Multicast Filtering 4 4 SNMP Management Software 4 5 Remote Monitoring 4 5 Appendix A Troubleshooting A 1 Console Connection A 1 In Band Connection A 1 Upgrading Firmware via the Serial Port A 1 Appendix B Pin Assignments B 1 DB9 Serial Port Pin Description B 1 DB9 Port Pin Assignments B 1 Connection from Switch s Serial Port to PC s 9 Pin COM Port B 1 Connection from Switch s Serial Port to Modem s 25 Pin DCE Port B 2 Connection from Switch s Serial Port to PC s 25 Pin DTE Port B 2 Chapter 1 Managing the Switch Configuration Options The CheetahSwitch Workgroup 4508 provides a menu driven system configuration program that can be accessed through a direct console connection or modem connection to the serial port on the switch s rear panel out of band or by a Telnet connection over the network in band The switch also includes an embe
35. Contact r System Up Time a day 1 hour 1 min 31 sec Parameter Description System Name Name assigned to the switch system IP Address IP address of the SNMP agent The management agent supports SNMP over UDPIIP transport protocol In this environment all systems on the Internet such as network interconnection devices and any PC accessing the agent module or running AccView are assigned an IP address Valid IP addresses consist of four numbers of 0 to 255 and separated by periods Anything outside of this format will not be accepted by the configuration program System Object ID MIB II object identifier for switch s network management subsystem Location Specifies the area or location where the system resides Contact Contact person for the system System Uptime Length of time the current management agent has been running 1 Maximum string length is 255 but the screen only displays 45 characters You can use the arrow keys to browse the whole string 2 The default value is null 3 5 CheetahSwitch Workgroup 4508 Switch Information Use the Switch Information screen to display hardware firmware version numbers for the main board and SNMP agent as well as the power status Main Board Hardware Version 0 POST Version 01 00 01 Firmware Version VO 1 00 02 Port Number 8 Serial Number Internal Power Status Redundant Power Status Parameter Desc
36. Gateway used to pass trap messages from the switch s agent to the management station Note that the gateway must be defined if the management station is located in a different IP segment IP State Specifies whether IP functionality is enabled via manual configuration or set by Boot Protocol BOOTP Options include USER CONFIG IP functionality is enabled based on the default or user specified IP Configuration This is the default setting BOOTP Get IP IP is enabled but will not function until a BOOTP reply has been received BOOTP requests will be periodically broadcast by the switch in an effort to learn its IP address 1 The default value is null 2 7 CheetahSwitch Workgroup 4508 IP Connectivity Test Ping Use the IP Connectivity Test to see if another site on the Internet can be reached The screen shown below is described in the following table Use CheetahSwitch Workgroup 4508 Network Configuration IP Connectivity Test Ping IP Address 200 123 211 109 Test Times 1000 Interval 1 Success 1000 Failure 0 Start lt OK gt lt TAB gt or arrow keys to move other keys to make changes Parameter Description IP Address IP address of the site you want to ping Test Times The number of ICMP echo requests to send to the specified site 1 1000 Interval The interval in seconds between pinging the specified site 1 10 seconds Success Failure The number of tim
37. Space gt to scroll option Parameter Description Bridge Capability Extended Multicast Filtering Services This switch does not support filtering of individual multicast addresses based on GMRP GARP Multicast Registration Protocol Traffic Classes This switch provides the mapping of user priorities to multiple traffic classes Refer to 802 1P Configuration Static Entry Individual Port This switch allows static filtering for unicast and multicast addresses Refer to Network Monitor Menu Static Unicast Address Table Configuration and Static Multicast Address Table Configuration VLAN Learning This switch uses Independent VLAN Learning IVL whereby each port maintains its own VLAN filtering database Configurable PVID Tagging This switch allows you to override the default PVID setting Port VLAN ID used in frame tags and its egress status VLAN Tagged or Untagged on each port Refer to 802 1Q VLAN Port Configuration Local VLAN Capable This switch does not support multiple local bridges that is multiple Spanning Trees Bridge Settings Traffic Class Multiple traffic classes are supported by this switch as indicated under Bridge Capabilities However the switch supports just two priority queues and only the default port priority can be configured The switch does not support the configuration of traffic class mapping Therefore this parameter under Bridge Setti
38. Spanning Tree Information screen displays a summary of the STA information for the overall bridge or for a specific port To make any changes to the parameters for the Spanning Tree use the Spanning Tree Configuration screen Spanning Tree The parameters shown in the following figure and table describe the current bridge STA Information Stanning Tree State Enabled Designated Root 128 0000E800E800 Bridge ID 32768 000033443399 Root Port 2 Max Age 20 seconds Root Path Cost 4 Hello Time 2 seconds Configuration Changes 9 Forward Delay 5 seconds Last Topology Change 0 day 0 hour 1 min 58 sec Parameter Description Spanning Tree State Shows if switch is enabled to participate in an STA compliant network Bridge ID A unique identifier for this bridge consisting of bridge priority plus MAC address the MAC address of the switch unit Max Age The maximum time in seconds a device can wait without receiving a configuration message before attempting to reconfigure Hello Time The time interval in seconds at which the root device transmits a configuration message Forward Delay The maximum time in seconds the root device will wait before changing states i e listening to learning to forwarding Designated Root The priority and MAC address of the device in the spanning tree that this switch has accepted as the root device Root Port The number of the port on this switch that is clos
39. Time System Up Time when this VLAN was created Status Shows that this VLAN was added to the switch as a static entry Egress Ports Shows the ports which have been added to the displayed VLAN group Untagged Ports Shows the untagged VLAN port members 3 21 CheetahSwitch Workgroup 4508 VLAN Static List Use this screen to create or remove VLAN groups Current New 5 Enable VLAND 1 2049 Add E J VLAN Name Remove Status I Enable Parameter Description Current Lists all the current VLAN groups created for this system Up to 16 VLAN groups can be defined To allow this switch to participate in external VLAN groups you must use the VLAN ID for the concerned external groups New Allows you to specify the name and numeric identifier for a new VLAN group The VLAN name is only used for management on this system it is not added to the VLAN tag Status Enables disables the specified VLAN Add Adds a new VLAN group to the current list Remove Removes a VLAN group from the current list If any port is assigned to this group as untagged it will be reassigned to VLAN group 1 as untagged VLAN Static Table Use this screen to modify the settings for an existing VLAN You can add delete port members for a VLAN and disable or enable VLAN tagging for any port Note that VLAN 1 is fixed as an untagged VLAN containing all ports and cannot be modified via this screen VLAN 5E Name Statu
40. Time Out 0 minutes If no input is received from the attached device after this interval in minutes the current session is automatically closed Range 0 100 minutes where 0 indicates disabled Auto Refresh 0 sec Sets the interval before a console session will auto refresh the 2 10 console information including Spanning Tree Information Port Configuration Port Statistics and RMON Statistics Range 0 or 5 255 seconds where 0 indicates disabled Management Guide Assigning SNMP Parameters Use the SNMP Configuration screen to display and modify parameters for the Simple Network Management Protocol SNMP The switch includes an on board SNMP agent which monitors the status of its hardware as well as the traffic passing through its ports A computer attached to the network called a Network Management Station NMS can be used to access this information Access rights to the on board agent are controlled by community strings To communicate with the switch the NMS must first submit a valid community string for authentication The options for configuring community strings and related trap functions are described in the following figures and table CheetahSwitch Workgroup 4508 SNMP Configuration SNMP Administration ENABLED Send Authentication Fail Traps ENABLED Send Link Up Link Down Traps ENABLED SNMP Communities IP Trap Managers lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys
41. able describe Bridge STA configuration CheetahSwitch Workgroup 4508 Spanning Tree Configuration Bridge STA Configuration Spanning Tree Protocol ENABLED Hello Time 7 2 Max Age 6 Priority 32768 Forward Delay 24 lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move lt Space gt to scroll options Parameter Default Description Spanning Tree Protocol Enabled Enable this parameter to participate in an STA compliant network Hello Time 2 Time interval in seconds at which the root device transmits a configuration message Minimum value 1 Maximum value lower of 10 or Max Message Age 2 1 Max Message Age 20 The maximum time in seconds a device can wait without receiving a configuration message before attempting to reconfigure All device ports except for designated ports should receive configuration messages at regular intervals Any port that ages out STA information provided in the last configuration message becomes the designated port for the attached LAN If it is a root port a new root port is selected from among the device ports attached to the network The minimum value is the higher of 6 or 2 x Hello Time 1 The maximum value is the lower of 40 or 2 x Forward Delay 1 Priority 32 768 Device priority is used in selecting the root device root port and designated port The device with the highest priority becomes the STA root device If all de
42. ameters are shown in the following figure and table Port Admin Status Link Status Speed Status Duplex Status Flow Control Status 1 Enabled Down 1000M Full Disabled 2 Enabled Down 1000M Full Disabled 3 Enabled Up 1000M Full Disabled 4 Enabled Down 1000M Full Disabled 5 Enabled Down 1000M Full Disabled 6 Enabled Down 1000M Full Disabled 7 Enabled Down 1000M Full Disabled 8 Enabled Down 1000M Full Disabled 3 26 Management Guide Parameter Description Admin Status Shows if the port is enabled or not Link Status Indicates if the port has a valid connection to an external device Speed Status Indicates that the port is connected at 1000 Mbps Duplex Status Indicates that the port is connected at full duplex Flow Control Status Shows if flow control is in use Flow control can eliminate frame loss by blocking traffic from end stations connected directly to the switch Standard IEEE 802 3x full duplex flow control is used Port Configuration Use the Port Configuration menus to configure any port on the switch Port Admin Status Duplex Mode Flow Control 1 M Enable 1000M Full Duplex I Enable 2 M Enable 1000M Full Duplex gt I Enable 3 M Enable 1000M Full Duplex I Enable 4 WEnable 1000M FullDuplex J M Enable 5 M Enable i000M Full Duplex I Enable 6 Enable 1000MFul Duplex E M Enable 7 Enable 1000MFul
43. and password to the Administrator as soon as possible and store it in a safe place If for some reason your password is lost or you can not gain access to the System Configuration Program contact your Accton distributor for assistance The parameters shown on this screen are indicated in the following figure and table CheetahSwitch Workgroup 4508 Console Login Configuration Password Threshold eB Lock out Time in seconds 0 User Type User Name Password Admin aamin Guest guest lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move other keys to make changes Parameter Default Description Password 3 Sets the password intrusion threshold which limits the number Threshold of failed logon attempts Range 0 65535 Lock out Time 0 The time in seconds the management console will be disabled due to an excessive number of failed logon attempts Range 0 65535 Admin name admin Administrator has access privilege of Read Write for all password null screens Guest name guest Guest has access privilege of Read Only for all screens password null 1 Passwords can consist of up to 15 alphanumeric characters and are not case sensitive 2 13 CheetahSwitch Workgroup 4508 Downloading System Software Using TFTP Protocol to Download Over the Network Use the TFTP Download menu to load software updates into the switch The download file should be an ES4508 binary file from
44. ar Table Port 000E8 00001A VLAN 1 Port 3 Dynamic O00E8 000096 VLAN 1 Port 3 Dynamic 000E8 000101 VLAN 1 Port 3 Dynamic O00E8 02A0E6 VLAN 1 Port 3 Dynamic zf 0 0 0 00 0 0 0 0 00 0 0 0 Parameter Description Aging Time Time out period in seconds for aging out dynamically learned forwarding information Range 0 or 10 458 secs 0 disable default 300 secs Address Table Sort by Entries can be sorted by MAC address or VLAN ID Address Table The system displays the MAC address of each node the port whose address table includes this MAC address the associated VLAN s and the address status i e dynamic or static New Static Address Use the MAC Address VLAN and Port fields to add a static entry to the address table Add Remove Adds removes selected address Clear Table Removes all addresses from the address table 3 12 Management Guide STA Spanning Tree Algorithm The Spanning Tree Algorithm can be used to detect and disable network loops and to provide backup links between switches bridges or routers This allows the switch to interact with other bridging devices that is STA compliant switch bridge or router in your network to ensure that only one route exists between any two stations on the network For a more detailed description of how to use this algorithm refer to Spanning Tree Algorithm in Chapter 4 Spanning Tree Information The
45. ch Workgroup 4508 1 4 Chapter 2 Using the System Configuration Program Once a direct connection to the serial port or a Telnet connection is established the login screen for the on board configuration program appears as shown below AAAAA AAAA CCCcccc cccccc TITTTTTTTT 000000 NN NN AAAAA AAAA CC cc cc cc TT oO oO NNN NN AAAAA AAAA CC cc TT oO oO NN NN NN AAAAA AAAA CC cc TT oO oO NN NN NN AAAAA AAAAAAAA CC ce cc ee TT oO oO NN NNN AAAAA AAAAAAAAA CCCccccc CCCCCccc TT 000000 NN NN CheetahSwitch Workgroup 4508 v01 00 01 01 12 2000 c Copyright Accton Technology Corp User Name admin Password ee ee If this is your first time to log into the configuration program then the default user names are admin and guest and the passwords are null The administrator has Read Write access to all configuration parameters and statistics while the guest has Read Only access To open the Main Menu type admin for the user name and press lt Enter gt for the password You should define a password record it and put it in a safe place If you have not already done so select Security Configuration and enter a password Note that passwords can consist of up to 15 alphanumeric characters and are not case sensitive Configuration parameters are described in the following section Note Based on the default configuration a user is allowed three attempts to enter the correct password on the third failed attempt the current con
46. cng be teh bee epee PASS SEEPROM Checksum Test s sssesssessossies PASS MAC AdGreESS wu ieee ee 00 e0 29 52 28 00 SeQemse sess Power On Self Test Completed D ownload System Image or S tart Application S Select the Firmware Type to Download 1 Runtime 2 POST 3 Mainboard 1 For example if you select 1 for downloading agent firmware the system will display the following message D ownload System Image or S tart Application S Select the Firmware Type to Download 1 Runtime 2 POST 3 Mainboard 1 1 Your Selection Runtime Code Download code to FlashROM address 0x02880000 Change Baud Rate to 115200 and Press lt ENTER gt to Download 3 Change your baud rate to 115200 bps and press Enter to enable download mode From the terminal emulation program select the file you want to download set the protocol to XModem and then initialize downloading Notes If you use Windows HyperTerminal disconnect 5 and reconnect 5l to enable the new baud rate The download file should be an ES4508 binary file from Accton otherwise the agent will not accept it The file naming convention is Runtime program Agent Vx yz POST program Boot Vx yx and Mainboard program 8051 Vx yz 4 After the file has been downloaded the console screen will display information similar to that shown below Press s to start the management interface change the baudrate back to 19200 and press Enter
47. d table CheetahSwitch Workgroup 4508 Broadcast Storm Control Port 1 8 Port Filtering Filtering Status Threshold iL DISABLED 10240 2 DISABLED 10240 3 DISABLED 10240 4 DISABLED 10240 5 DISABLED 10240 6 DISABLED 10240 7 DISABLED 10240 8 DISABLED 10240 lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move lt Space gt to scroll options Parameter Description Filtering Status Enables disables Broadcast Storm Control for the port When enabled broadcast packets are discarded if the threshold rate is exceeded Filtering Threshold The threshold rate above which broadcast packets are discarded The default is 10240 packets per second Range is 1024 353 422 pps 2 25 CheetahSwitch Workgroup 4508 Configuring Bridge MIB Extensions The Bridge MIB includes extensions for managed devices that support Traffic Classes Multicast Filtering and Virtual LANs To configure these extensions use the Extended Bridge Configuration screen as shown below Cheetahswitch Workgroup 4508 Extended Bridge Configuration Bridge Capability Read Only Extended Multicast Filtering Services NO Traffic Classes YES Static Entry Individual Port YES VLAN Learning IVL Configurable PVID Tagging YES Local VLAN Capable NO Bridge Settings Traffic Class FALSE GMRP DISABLED GVRP DISABLED lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move lt
48. dded HTTP Web agent This Web agent can be accessed using a standard Web browser from any computer attached to the network The switch s management agent is based on SNMP Simple Network Management Protocol This SNMP agent allows the switch to be managed from any PC on the network using in band management software such as Accton s AccView Open Once you have connected a terminal or PC to the serial port on the switch you can perform the following tasks e Enable disable any port e Set the communication mode for any port e Configure SNMP parameters e Configure the switch to join a Spanning Tree e Add ports to VLAN groups e Mirror data from a target port to an analysis port e Display system information or statistics e Download system firmware e Restart the system 1 1 CheetahSwitch Workgroup 4508 Making Connections for System Configuration The switch includes a menu driven configuration program The ASCII interface to this program can be accessed by making a direct connection to the serial port on the rear panel or by a Telnet connection to the switch over the network This section describes how to access the menu driven configuration program via e Onsite connection A terminal or workstation connected to the serial port on the rear panel e Modem connection Aworkstation connected to the serial port of a remote switch via modems e Telnet connection A workstation connected to a remote switch via a Telnet connection It
49. detected later than 512 bit times into the transmission of a packet Excessive Collisions The number of frames for which transmission failed due to excessive collisions Internal Mac Transmit Errors The number of frames for which transmission failed due to an internal MAC sublayer transmit error 2 34 Parameter Management Guide Description Carrier Sense Errors The number of times that the carrier sense condition was lost or never asserted when attempting to transmit a frame Frames Too Long The number of frames received that exceed the maximum permitted frame size Internal Mac Receive Errors The number of frames for which reception failed due to an internal MAC sublayer receive error 1 The reported values will always be zero because these statistics are not supported by the internal chip set Displaying RMON Statistics Use the RMON Statistics screen to display RMON Group 1 statistics for each port RMON groups 2 3 and 9 can only be accessed using SNMP management software such as AccView The following screen displays overall statistics on traffic passing through each port RMON statistics provides access to a broad range of statistics including a total count of different frame types passing through each port Values displayed have been accumulated since the last system reboot Drop Events lt 0 Jabbers 2 0 Received Bytes 0 Collisions 9 Received Frames 3 0 64 Byt
50. e PVID to assign ports to the same untagged VLAN Acceptable Frame This switch accepts All frame types including Type VLAN tagged or VLAN untagged frames Note that all VLAN untagged frames received on this port are assigned to the PVID for this port Ingress Filtering If set to True incoming frames for VLANs which do not include this port in their member set will be discarded at the inbound port Note This switch does not support GVRP Therefore the GVRP Status parameter is set to disabled and cannot be enabled The other GVRP parameters will always display zeros 2 32 Monitoring the Switch Management Guide The Network Monitor Menu provides access to port statistics RMON statistics IP multicast addresses and the static unicast address table Each of the screens provided by these menus is described in the following sections CheetahSwitch Workgroup 4508 Port Statistics RMON Statistics Unicast Address Table Multicast Address Registration Table IP Multicast Registration Table Static Unicast Address Table Configuration Static Multicast Address Table Configuration Use lt TAB gt or arrows keys to move lt Enter gt to select Network Monitor Menu lt OK gt Menu Description Port Statistics Displays statistics on network traffic passing through the selected port RMON Statistics Displays detailed statistical information for the
51. e Configuration Displays configures extended bridge capabilities provided by this switch including support for traffic classes and VLAN extensions 802 1P Configuration Configures default port priorities and queue assignments 802 1Q VLAN Base Information Displays basic VLAN information such as VLAN version number and maximum VLANs supported 802 1Q VLAN Current Table Information Displays VLAN groups and port members 802 1Q VLAN Static Table Configures VLAN groups via static assignments including setting port Configuration members 802 1Q VLAN Port Displays configures port specific VLAN settings including PVID and Configuration ingress filtering Note This switch does not support trunking GVRP or GMRP Therefore the Port Trunking Port GARP and Port GMRP configuration menus are not accessible from this screen 2 15 CheetahSwitch Workgroup 4508 Configuring Port Parameters Use the Port Configuration menus to configure any port on the switch CheetahSwitch Workgroup 4508 Port Configuration Port 1 8 Port Type Admin Flow Speed and Control Duplex nee 1000SX ENABLED ON 1000 FULL 2 1000SX ENABLED OFF 1000 FULL 3 1000SX ENABLED ON 1000 FULL 4 1000SX ENABLED OFF 1000 FULL 5 1000SX ENABLED ON 1000 FULL 6 1000SX ENABLED OFF 1000 FULL Ta 1000SX ENABLED OFF 1000 FULL 8 1000SX ENABLED ON 1000 FULL lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrows keys to move lt
52. e Frames 7 0 Broadcast Frames 0 65 127 Byte Frames 0 Multicast Frames 0 128 255 Byte Frames 0 CRC Alignment Errors 0 256 511 Byte Frames 0 Undersize Frames 0 512 1023 Byte Frames 0 Oversize Frames 0 1024 1518 Byte Frames 0 Fragments 0 Refresh Statistics Reset Counters lt OK gt lt PREV PAGE gt lt NEXT PAGE gt Use lt TAB gt or arrow keys to move lt Enter gt to select CheetahSwitch Workgroup 4508 RMON Statistics Port 1 Parameter Description Drop Events The total number of events in which packets were dropped due to lack of resources Receive Bytes Total number of data bytes received on the network This statistic can be used as a reasonable indication of Ethernet utilization Received Frames The total number of frames bad broadcast and multicast received Broadcast Frames The total number of good frames received that were directed to the broadcast address Note that this does not include multicast packets Multicast Frames The total number of good frames received that were directed to this multicast address CRC Alignment Errors For 1000Mbps ports the counter records the sum of CRC alignment errors and code errors frame received with rxerror signal 2 35 CheetahSwitch Workgroup 4508 Parameter Description Undersize Frames The total number of frames received that were less than 64 octets long excluding framing bits but including FCS octet
53. e rate at which data is sent between devices Options 2400 4800 9600 19200 38400 57600 115200 bps and Auto detection Note that when AUTO is selected you need to first press the Enter key once to set the data rate and initialize the connection Time Out 0 minutes If no input is received from the attached device after this interval in minutes the current session is automatically closed Range 0 100 minutes where 0 indicates disabled Databits 8 bits Sets the data bits of the RS 232 port Options 7 8 Stopbits 1 bit Sets the stop bits of the RS 232 port Options 1 2 Parity none Sets the parity of the RS 232 port Options none odd even Auto Refresh 0 sec Sets the interval before a console session will auto refresh the console information including Spanning Tree Information Port Configuration Port Statistics and RMON Statistics Range 0 or 5 255 seconds where 0 indicates disabled 3 3 CheetahSwitch Workgroup 4508 Main Menu Using the on board Web agent you can define system parameters manage and control the switch and all its ports or monitor network conditions The figure to the right of the Main Menu and the following table briefly describe the selections available from this program Item Description System Provides basic system description including contact information Switch Shows hardware firmware version numbers and power s
54. e your network becomes too overloaded Alarms Can be set to test data over any specified time interval and can monitor absolute or changing values such as a statistical counter reaching a specific value or a statistic changing by a certain amount over the set interval Alarms can be set to respond to either rising or falling thresholds Events Defines the action to take when an alarm is triggered The response to an alarm can include recording the alarm in the Log Table or sending a message to a trap manager Note that the Alarm and Event Groups are used together to record important events or immediately respond to critical network problems 4 6 Appendix A Troubleshooting Refer to the Quick Installation Guide for a more detailed listing of troubleshooting procedures However if you have trouble making a connection to the agent module then please refer to the following section Console Connection If you cannot access the on board configuration program via a serial port be sure to have set the terminal emulator program to VT100 compatible 8 data bits 1 stop bit no parity and 19200 bps Also check that the null modem serial cable conforms to the pin out connections provided in Appendix B If you forgot or lost the password contact Accton Technical Support for help In Band Connection You can access the management agent on the switch from anywhere within the attached network using Telnet a Web browser or other network manag
55. eal time applications such as video conferencing or streaming audio A multicast server does not have to establish a separate connection with each client It merely broadcasts its service to the network and any hosts which want to receive the multicast register with their local multicast switch router Although this approach reduces the network overhead required by a multicast server the broadcast traffic must be carefully pruned at every multicast switch router it passes through to ensure that traffic is only passed on the hosts which subscribed to this service This switch uses IGMP Internet Group Management Protocol to query for any attached hosts who want to receive a specific multicast service The switch looks up the IP Multicast Group used for this service and adds any port which received a similar request to that group It then propagates the service request on to any neighboring multicast switch router to ensure that it will continue to receive the multicast service For more information see IGMP Snooping and IP Multicast Filtering in Chapter 4 Configuring IGMP This protocol allows a host to inform its local switch router that it wants to receive transmissions addressed to a specific multicast address group Use the IGMP Configuration screen to set key parameters for multicast filtering as shown below IGMP Status M Enable Act as IGMP Querier I Enable IGMP Query Count 1 10 f IGMP Report Delay 1 30 minutes
56. eans that any frames with a default or user priority from 0 3 are sent to the low priority queue 0 while those from 4 7 are sent to the high priority queue 1 as shown in the following screen Port Priority 0 Priority 1 Priority 2 Priority 3 Priority 4 Priority 5 Priority 6 Priority 7 Class Range 1 0 o o 0 1 1 1 0 1 2 0 0 0 0 1 1 1 0 1 3 0 0 0 0 1 1 1 1 0 1 4 0 0 0 0 1 1 1 o1 5 0 0 0 0 1 1 1 0 1 6 0 0 0 0 1 1 1 0 1 7 0 0 0 0 1 1 1 1 0 1 8 0 0 0 0 1 1 1 0 1 Parameter Description Port Numeric identifier for switch port User Priority Shows that user priorities 0 3 specify the low priority queue and 4 7 specify the high priority queue 3 19 CheetahSwitch Workgroup 4508 Configuring VLANs Use the VLAN menu to create LAN groups and assign switch ports to any of up to 16 groups In conventional networks with routers broadcast traffic is split up into separate domains Switches do not inherently support broadcast domains This can lead to broadcast storms in large networks that handle a lot of IPX traffic By using IEEE 802 1Q compliant VLANs you can organize any group of network nodes into separate broadcast domains confining broadcast traffic to the originating group and provide a more secure and much cleaner network environment For a more detailed description of how to use VLANs see Using Virtual LANs in Chapter 4 VLAN Basic Information The VLAN Basic Information scre
57. ement software such as AccView However you must first configure the switch with a valid IP address subnet mask and default gateway If you have trouble establishing a link to the management agent check to see if you have a valid network connection Then verify that you entered the correct IP address Also be sure the port through which you are connecting to the switch has not been disabled If it has not been disabled then check the network cabling that runs between your remote location and the switch Note Up to four Telnet connections are supported Upgrading Firmware via the Serial Port You can upgrade system firmware by connecting your computer to the serial port on the agent module and using a console interface package that supports the XModem protocol See Making Connections for System Configuration on page 1 2 1 Restart the system by using the Restart System command 2 When the system initialization screen appears as shown below press Ctrl G to download system firmware and then indicate the code type 1 Runtime 2 POST 3 Mainboard A 1 CheetahSwitch Workgroup 4508 c Copyright 2000 Accton Inc CheetahSwitch Workgroup 4508 LOADER Version V01 00 01 POST Version V01 00 01 SSeSes Performing the Power On Self Test POST EPROM Checksum Test 2 see e dine diata PASS Testing the System SDRAM PASS CPU Selt TEBE acia wate riserts n rieres niai PASS EEPROM Checksum TESE 2
58. en displays basic information on the VLAN type supported by this switch VLAN Version Number 1 Maximum VLAN ID 2048 Maximum Number of Supported VLANs 16 Current Number of 802 10 VLANs Configured 2 Parameter Description VLAN Version Number The VLAN version used by this switch as specified in the IEEE 802 1Q standard Max VLAN ID Maximum VLAN ID recognized by this switch Max Supported VLANs Maximum number of VLANs that can be configured on this switch Current Number of VLANs The number of VLANs currently configured on this switch Configured 3 20 Management Guide VLAN Current Table This screen shows the current port members of each VLAN and whether or not the port supports VLAN tagging Ports assigned to a large VLAN group that crosses several switches should use VLAN tagging However if you just want to create a small port based VLAN for one or two switches you can assign ports to the same untagged VLAN The current configuration is shown in the following screen VLAN Entry Delete Count 0 VLAN ID 2 Up Time at Creation 0 day 23 hour 26 min 58 sec Status Permanent Egress Ports Untagged Ports Port1 Port 2 Port3 Port 4 Port5 Port amp Port Port Parameter Description VLAN Entry Delete Count The number of times a VLAN entry has been deleted from this table VLAN ID The ID for the VLAN currently displayed Up Time at Creation The value of sysUp
59. er names and passwords for system access as well as the invalid password threshold and lockout time TFTP Download Downloads new version of firmware to update your system in band Device Control Menu Port Configuration Enables any port enables disables flow control and sets communication mode to auto negotiation or full duplex 2 2 Parameter Management Guide Description Port Information Displays operational status including link state flow control method speed and duplex mode Spanning Tree Configuration Enables Spanning Tree Algorithm also sets parameters for hello time maximum message age switch priority and forward delay as well as port priority path cost and Fast STA mode Spanning Tree Information Displays full listing of parameters for the Spanning Tree Algorithm Mirror Port Configuration Sets the source and target ports for mirroring IGMP Configuration Configures IGMP multicast filtering Broadcast Storm Control Sets the broadcast rate threshold at which broadcast packets are discarded Extended Bridge Configuration Displays configures extended bridge capabilities provided by this switch 802 1P Configuration Configures default port priorities and queue assignments 802 1Q VLAN Base Information Displays basic VLAN information such as VLAN version number maximum VLAN ID maximum VLANs supported and the current number of VLAN
60. es the specified site has responded or not to pinging Access Host Configuration Use the Access Host Configuration screen to restrict management access to the host switch to specified subnets The screen shown below is described in the following table Use CheetahSwitch Workgroup 4508 Security Configuration Access Host Configuration IP Address Match IP Mask 10 1 10 0 255 255 255 0 lt APPLY gt lt OK gt lt TAB gt or arrow keys to move lt CANCEL gt other keys to make changes Parameter Description IP Address Match IP address of a subnet that is allowed management access to the host switch Up to five subnets can be specified IP Mask The IP mask that identifies the subnet 2 8 Management Guide HTTP Configuration Use the HTTP Configuration screen to enable disable the on board Web agent and to specify the TCP port that will provide HTTP service The screen shown below is described in the following table CheetahSwitch Workgroup 4508 Network Configuration HTTP Configuration HTTP Server ENABLED HTTP Port Number 80 lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move lt Space gt to scroll options Parameter Description HTTP Server Enables disables the on board Web agent HTTP Port Number Specifies the TCP port that will provide HTTP service Range is 0 65535 Default is Port 80 Telnet Port 23 is prohibited 2 9 Chee
61. est to the root This switch communicates with the root device through this port If there is no root port then this switch has been accepted as the root device of the spanning tree network Root Path Cost The path cost from the root port on this switch to the root device Configuration Changes The number of times the spanning tree has been reconfigured Last Topology Change The time since the spanning tree was last reconfigured 3 13 CheetahSwitch Workgroup 4508 Ports The parameters shown in the following figure and table are for port STA Information Port Port Status Forward Transitions Designated Cost Designated Bridge Designated Port 1 Disabled 0 0 32768 000033448899 128 1 2 Forwarding 1 0 128 0000E800E800 128 4 3 Disabled 0 0 32768 000033448899 128 3 4 Disabled 0 0 32768 000033448899 128 4 5 Disabled 0 0 32768 000033448399 128 5 6 Disabled 0 0 32768 000033448899 128 6 7 Disabled a 0 32768 000033448899 128 7 8 Disabled 0 0 32768 000033448899 128 8 Parameter Description Port Status Displays the current state of this port within the spanning tree Disabled Port has been disabled by the user or has failed diagnostics Blocked Port receives STA configuration messages but does not forward packets Listening Port will leave blocking state due to topology change starts transmitting configuration messages but does not yet forward packets Learning Has
62. field 3 23 CheetahSwitch Workgroup 4508 VLAN Port Configuration Use this screen to configure port specific settings for IEEE 802 1Q VLAN features Port PVID 1 2048 Acceptable Frame Type Ingress Filtering GVRP Status GVRP Failed Registrations GVRP PDU Origin 1 f Al I Enable I Enable 0 00 00 00 00 00 00 2 E Al Enable MEnable 0 00 00 00 00 00 00 34i b Al I Enable I Enable 0 00 00 00 00 00 00 al fi Al DEnable D Enable 0 00 00 00 00 00 00 s ft Al I Enable I Enable 0 00 00 00 00 00 00 6 ft Al I Enable T Enable 0 00 00 00 00 00 00 7 EO Al I Enable I Enable 0 00 00 00 00 00 00 3 B Al I Enable I Enable 0 00 00 00 00 00 00 Parameter Description PVID The VLAN ID assigned to untagged frames received on this port Use the PVID to assign ports to the same untagged VLAN Acceptable Frame Type This switch accepts All frame types including VLAN tagged or VLAN untagged frames Note that all VLAN untagged frames received on this port are assigned to the PVID for this port Ingress Filtering If set to True incoming frames for VLANs which do not include this port in their member set will be discarded at the inbound port Note This switch does not support GVRP Therefore the GVRP Status parameter is set to disabled and cannot be enabled The other GVRP parameters will always display zeros 3 24 Management Guide IGMP Multicast Filtering Multicasting is used to support r
63. figuration menus are also provided for advanced functions such as Virtual LANs and port mirroring Each of the setup screens provided by the configuration menus is described in the following sections Port Configuration Port Information Spanning Tree Configuration 802 1Q VLAN Base Information Spanning Tree Information 802 10 VLAN Current Table Information Mirror Port Configuration 802 1Q VLAN Static Table Configuration Port Trunking Configuration 802 1Q VLAN Port Configuration IGMP Configuration Port GARP Configuration Broadcast Storm Control Port GMRP Configuration lt OK gt Use lt TAB gt or arrow keys to move lt Enter gt to select CheetahSwitch Workgroup 4508 Device Control Menu Extended Bridge Configuration 802 1P Configuration Parameter Description Port Configuration Sets communication parameters for ports Port Information Displays current port settings and port status Spanning Tree Configuration Configures the switch and its ports to participate in a Spanning Tree Spanning Tree Information Displays the current Spanning Tree configuration for the switch Mirror Port Configuration Sets the source and target ports for mirroring IGMP Configuration Configures IGMP multicast filtering Broadcast Storm Control Configures the threshold at which broadcast packets are discarded Extended Bridg
64. gent can be accessed The screen shown below is described in the following table Access Host Capability 5 groups Current New lt lt Add Access IP Net Remove Access IP Mask 210 68 150 0 255 255 255 0 Parameter Description Access IP Net An IP address of a subnet authorized for management access Access IP Mask A subnet mask that identifies the host address bits of the subnet Add Remove Add remove strings from the active list SNMP Configuration Use the SNMP Configuration screen to display and modify parameters for the Simple Network Management Protocol SNMP The switch includes an on board SNMP agent which monitors the status of its hardware as well as the traffic passing through its ports A computer attached to the network called a Network Management Station NMS can be used to access this information Access rights to the on board agent are controlled by community strings To communicate with the switch the NMS must first submit a valid community string for authentication The options for configuring community strings and related trap functions are described in the following sections SNMP Administration Enable Access to the management agent from SNMP based network management software can be enabled disabled from this screen SNMP Administration M Enable Clearing the checkbox disables the SNMP protocol in the agent so that the switch can only be managed through the Web based interface o
65. ger Community String A community specified in the SNMP Communities table Add Remove Add remove strings from the active list Enable Authentication Traps Issues a trap message to specified IP trap managers whenever authentication of an SNMP request fails The default is enabled 3 9 CheetahSwitch Workgroup 4508 Security Configuration Use the Security Configuration screen to restrict management access based on Administrator user name and password Only the Administrator has write access for parameters governing the SNMP agent You should therefore assign a password to the Administrator as soon as possible and store it in a safe place If for some reason your password is lost or you can not gain access to the system s configuration program contact your Accton distributor for assistance The parameters shown on this screen are indicated in the following figure and table Change Password Old Password New Password Confirm Password Parameter Description Old Password Current Administrator password for read write access Default password is null New Password Enter a new password for the Administrator Confirm Password Re enter the new password for the Administrator Note Passwords can consist of up to 15 alphanumeric characters and are not case sensitive Firmware Upgrade Options Web Upload Management Use the Web Upload Management menu to load software updates into the switch The upload file should
66. gt Single Collision Frames Multiple Collision Frames Deffered Transmissions Refresh Counters Use lt TAB gt or arrow keys to move CheetahSwitch Workgroup 4508 Port Statistics Port 1 Late Collisions 0 Excessive Collisions 0 Internal MAC Transmit Errors 0 Carrier Sense Errors 20 Frames Too Long 0 Internal MAC Receive Errors 0 ocoo0000 Reset Counters lt NEXT PAGE gt lt Enter gt to select lt PREV PAGE gt Parameter Description Alignment Errors For 10 Mbps ports this counter records alignment errors mis synchronized data packets For 100 Mbps ports this counter records the sum of alignment errors and code errors frames received with rxerror signal FCS Errors The number of frames received that are an integral number of octets in length but do not pass the FCS check Single Collision Frames The number of successfully transmitted frames for which transmission is inhibited by exactly one collision Multiple Collision Frames A count of successfully transmitted frames for which transmission is inhibited by more that one collision SQE Test Errors A count of times that the SQE TEST ERROR message is generated by the PLS sublayer Deferred Transmissions A count of frames for which the first transmission attempt on a particular interface is delayed because the medium was busy Late Collisions The number of times that a collision is
67. he responsibility of querying the LAN for group members Based on the group membership information learned from IGMP a router switch can determine which if any multicast traffic needs to be forwarded to each of its ports At Layer 3 multicast routers use this information along with a multicast routing protocol to support IP multicasting across the Internet IGMP provides the final step in an IP multicast packet delivery service since it is only concerned with forwarding multicast traffic from the local router switch to group members on directly attached subnetwork or LAN segment This switch supports IP Multicast Filtering by e Passively snooping on the IGMP Query and IGMP Report packets transferred between IP multicast routers and IP multicast host groups to learn IP Multicast group members and e Actively sending IGMP Query messages to solicit IP Multicast group members see page 2 23 or 3 25 4 4 Management Guide The purpose of IP multicast filtering is to optimize a switched network s performance so multicast packets will only be forwarded to those ports containing multicast group hosts or multicast routers switches instead of flooding to all ports in the subnet VLAN The CheetahSwitch Workgroup 4508 with IP multicast filtering capability not only passively monitors IGMP Query and Report messages it can also actively send IGMP Query messages to learn locations of multicast routers switches and member hosts in multica
68. heck Single Collision Frames The number of successfully transmitted frames for which transmission is inhibited by exactly one collision Multiple Collision Frames A count of successfully transmitted frames for which transmission is inhibited by more that one collision SQE Test Errors A count of times that the SQE TEST ERROR message is generated by the PLS sublayer Deferred Transmissions A count of frames for which the first transmission attempt on a particular interface is delayed because the medium was busy Late Collisions The number of times that a collision is detected later than 512 bit times into the transmission of a packet Excessive Collisions The number of frames for which transmission failed due to excessive collisions Internal Mac Transmit Errors The number of frames for which transmission failed due to an internal MAC sublayer transmit error Carrier Sense Errors The number of times that the carrier sense condition was lost or never asserted when attempting to transmit a frame Frames Too Long The number of frames received that exceed the maximum permitted frame size Internal Mac Receive Errors The number of frames for which reception failed due to an internal MAC sublayer receive error 1 The values will always be zero because these statistics are not supported by the internal chip set 3 29 CheetahSwitch Workgroup 4508 RMON Statist
69. iated VLAN based on the PVID of the receiving port e Ifthe frame is tagged the switch uses the tagged VLAN ID to identify the port broadcast domain of the frame Port Overlapping Port overlapping can be used to allow access to commonly shared network resources among different VLAN groups such as file servers or printers Note that if you implement VLANs which do not overlap but still need to communicate you must connect them using a router or Layer 3 switch Forwarding Tagged Untagged Frames Ports can be assigned to one untagged VLAN and multiple tagged VLANs Each port on the switch is therefore capable of passing tagged or untagged frames To forward a frame from a VLAN aware device to a VLAN unaware device the switch first decides where to forward the frame and then strips off the VLAN tag However to forward a frame from a VLAN unaware device to a VLAN aware device the switch first decides where to forward the frame and then inserts a VLAN tag reflecting this port s default VID The default PVID is VLAN 1 but this can be changed see page 2 32 or 3 24 VLAN aware VLAN aware VLAN 1 2 VLAN 1 3 802 1Q tags 802 1Q tags VLAN aware HHEHEsE trunk VLAN 1 2 3 802 1Q tags VLAN aware SHEHSE VLAN 1 2 3 802 10 tags VLAN 13 untagged VLAN aware VLAN unaware 4 3 CheetahSwitch Workgroup 4508 Forwarding Traffic with Unknown VLAN Tags
70. ics RMON Statistics display key statistics for each port or media module from RMON group 1 RMON groups 2 3 and 9 can only be accessed using SNMP management software such as AccView The following screen displays overall statistics on traffic passing through each port RMON statistics provide access to a broad range of statistics including a total count of different frame types passing through each port Values displayed have been accumulated since the last system reboot Drop Events O Jabbers 0 Received Bytes 0 Collisions 0 Received Frames 0 64 Bytes Frames 0 Broadcast Frames 0 65 127 Bytes Frames 0 Multicast Frames 0 128 255 Bytes Frames 0 CRC Alignment Errors 0 256 511 Bytes Frames 0 Undersize Frames 0 512 1023 Bytes Frames i 0 Oversize Frames 01024 1518 Bytes Frames 0 Fragments 0 Parameter Description Drop Events The total number of events in which packets were dropped due to lack of resources Received Bytes Total number of bytes of data received on the network This statistic can be used as a reasonable indication of Ethernet utilization Received Frames The total number of frames bad broadcast and multicast received Broadcast Frames The total number of good frames received that were directed to the broadcast address Note that this does not include multicast packets Multicast Frames The total number of good frames received that were directed to this
71. learning and then to forwarding Designated Cost The cost for a packet to travel from this port to the root in the current spanning tree configuration The slower the media the higher the cost Designated Bridge ID The priority and MAC address of the device through which this port must communicate to reach the root of the spanning tree Designated Port ID 2 22 The port on the designated bridging device through which this switch must communicate with the root of the spanning tree Management Guide Using a Mirror Port for Analysis You can mirror traffic from any source port to a target port for real time analysis You can then attach a logic analyzer or RMON probe to the target port and study the traffic crossing the source port in a completely unobtrusive manner When mirroring port traffic note that the target port must be included in the same VLAN as the source port See Configuring Virtual LANs on page 2 41 You can use the Mirror Port Configuration screen to designate a single port pair for mirroring as shown below CheetahSwitch Workgroup 4508 Mirror Port Configuration Analyzer Port Port 0 Monitored Port Port 0 Analyzer Port Status DISABLED lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description Mirror Source Port The port whose traffic will be monitored Mirror Target Port The port that will
72. meters for the Spanning Tree use the Spanning Tree Configuration menu Also note that this screen cannot be accessed unless you have already enabled the Spanning Tree Algorithm via the STA Bridge Configuration menu CheetahSwitch Workgroup 4508 Spanning Tree Information Selection Menu STA Bridge Information STA Port Information lt OK gt Use lt TAB gt or arrows keys to move lt Enter gt to select Displaying the Current Bridge STA The parameters shown in the following figure and table describe the current Bridge STA Information CheetahSwitch Workgroup 4508 Spanning Tree Information Bridge STA Information Priority 65535 Hello Time in seconds a2 Max Age in seconds 6 Forward Delay in seconds 5 Hold Time in seconds 2 Designated Root 0 0000e8123456 Root Cost 10 Root Port I Reconfig Counts i2 Topology Up Time 0 day 1 hr 2min 34 sec lt OK gt Use lt Tab gt or arrow keys to move lt Enter gt to select Parameter Description Priority Device priority is used in selecting the root device root port and designated port The device with the highest priority becomes the STA root device However if all devices have the same priority the device with the lowest MAC address will then become the root device Hello Time The time interval in seconds at which the root device transmits a configuration message Max Age The maximum time in seconds a device
73. nection is terminated 2 1 CheetahSwitch Workgroup 4508 Main Menu With the system configuration program you can define system parameters manage the switch and all its ports or monitor network conditions The figure below of the Main Menu and the following table briefly describe the selections available from this program Note Options for the currently selected item are displayed in the highlighted area at the bottom of the interface screen Use lt TAB gt or arrow keys to move CheetahSwitch Workgroup 4508 Main Menu System Information Menu Management Setup Menu Device Control Menu Network Monitor Menu System Restart Menu Exit lt Enter gt to select Parameter Description System Information Menu System Information Provides basic system description including contact information Switch Information Shows hardware firmware version numbers and power status Management Setup Menu Network Configuration Includes IP setup Ping facility Access Host configuration HTTP Web agent setup Telnet configuration and MAC address Serial Port Configuration Sets communication parameters for the serial port including management mode baud rate console time out and screen data refresh interval SNMP Configuration Enables disables SNMP access activates traps and configures communities and trap managers Console Login Configuration Sets us
74. ngs is set to False and cannot be enabled Note This switch does not support GVRP or GMRP Therefore the GVRP and GMRP parameters are always disabled 2 26 Management Guide Configuring Traffic Classes IEEE 802 1p defines up to 8 separate traffic classes This switch supports Quality of Service QoS by using two priority queues with weighted fair queuing for each port You can use the 802 1P Configuration menu to configure the default priority for each port or to display the mapping for the traffic classes as described in the following sections CheetahSwitch Workgroup 4508 802 1P Configuration Selection Menu 802 1P Port Priority Configuration 802 1P Port Traffic Class Information lt OK gt Use lt TAB gt or arrows keys to move lt Enter gt to select Port Priority Configuration The default priority for all ingress ports is zero Therefore any inbound frames that do not have priority tags will be placed in the low priority output queue Default priority is only used to determine the output queue for the current port no priority tag is actually added to the frame You can use the 802 1P Port Priority Configuration menu to adjust default priority for any port as shown below CheetahSwitch Workgroup 4508 802 1P Port Priority Configuration Port 1 8 Port Default Ingress Number of Egress User Priority Traffic Class 1 0 2 2 0 2 3 0 2 4 0 2 5 0 2 6 0 2 T 0 2 8 0 2 lt APPLY gt lt OK g
75. no parity 19200 bps and no flow control 1 2 Management Guide Telnet Connection Prior to accessing the switch via an in band Telnet connection you must first configure it with a valid IP address subnet mask and default gateway using an out of band connection or BOOTP protocol After configuring the switch s IP parameters you can access the on board configuration program from anywhere within the attached network Note Up to four Telnet sessions are supported In Band Network Connection The on board configuration program can be accessed using Telnet or a Web browser Internet Explorer 4 0 or above or Netscape Navigator 4 0 or above from any computer attached to the network It can also be managed from a network computer using management software such as AccView Notes 1 Prior to accessing the switch via a direct network connection first configure it with a valid IP address subnet mask and default gateway using an out of band connection or BOOTP protocol 2 The on board program only provides access to basic configuration functions To access the full range of SNMP management functions you must use SNMP based network management software Accton provides a Windows based SNMP software package called AccView Open If you require this software please contact your Accton distributor Also note that AccView s CheetahSwitch Manager module can be easily integrated into most third party management platforms 1 3 CheetahSwit
76. on screen to display hardware firmware version numbers as well as the power status Use lt TAB gt or arrow keys to move lt Enter gt to select CheetahSwitch Workgroup 4508 Switch Information Hardware Version V1 0 POST ROM Version VO1 00 00 Firmware Version VO1 00 01 Serial Number Port Number 8 Internal Power Status Redundant Power Status lt OK gt Parameter Description Hardware Version Hardware version of the main board POST ROM Version Power On Self Test version number Firmware Version System firmware version in ROM Serial Number Serial number of the main board Port Number Number of ports Internal Power Status Indicates if the primary power is active or inactive Redundant Power Status Indicates if the redundant power is active or inactive 1 These parameters are not supported by the current hardware version Management Setup Menu After initially logging onto the system adjust the communication parameters for your console to ensure a reliable connection Console Configuration menu Specify the Ethernet and IP addresses for the SNMP agent IP Configuration menu and then set the Administrator and User passwords Console Login Configuration menu Remember to record them in a safe place Also set the community string which controls access to the on board SNMP agent via in band management software SNMP Configuration menu The items
77. p You can use the IGMP Configuration screen to configure multicast filtering shown below IGMP Status ENABLED Act as IGMP Querier DISABLED IGMP Query Count tg IGMP Report Delay Minutes 5 lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move lt Space gt to scroll options CheetahSwitch Workgroup 4508 IGMP Configuration Parameter Description IGMP Status If enabled the switch will monitor network traffic to determine which hosts want to receive multicast traffic Act as IGMP Querier If enabled the switch can serve as the querier which is responsible for asking hosts is they want to receive multicast traffic Not implemented in the current firmware release IGMP Query Count The maximum number of queries issued for which there has been no response before the switch takes action to solicit reports IGMP Report Delay The time in minutes between receiving an IGMP Report for an IP multicast address on a port before the switch sends an IGMP Query out that port and removes the entry from its list Note The default values are indicated in the sample screen 2 24 Management Guide Broadcast Storm Control Use the Broadcast Storm Control menu to enable disable broadcast suppression on a per port basis You can also set the packet per second threshold above which broadcast packets will be discarded The parameters are shown in the following figure an
78. provided by the Management Setup Menu are described in the following sections 2 5 CheetahSwitch Workgroup 4508 CheetahSwitch Workgroup 4508 Management Setup Network Configuration Serial Port Configuration SNMP Configuration Console Login Configuration TFTP Download lt OK gt Use lt TAB gt or arrow keys to move lt Enter gt to select Changing the Network Configuration Use the Network Configuration menu to set the bootup option configure the switch s Internet Protocol IP parameters enable the on board Web agent or enable Telnet access The screen shown below is described in the following table CheetahSwitch Workgroup 4508 Network Configuration IP Configuration IP Connectivity Test Ping Access Host Configuration HTTP Configuration MAX Number of Allowed Telnet Sessions 1 4 4 MAC Address 00 00 e8 12 34 56 lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description IP Configuration Screen used to set the bootup option or configure the switch s IP parameters for the Ethernet interface IP Connectivity Test Ping Screen used to test IP connectivity to a specified device Access Host Configuration Screen used to restrict access to the host switch to specified subnets HTTP Configuration Screen used to enable disable the Web agent MAX Number of The
79. r a direct connection to the serial port Note that even when SNMP Administration is disabled the agent will continue to issue SNMP trap messages 3 8 Management Guide SNMP Community The following figure and table describe how to configure the community strings authorized for trap management access All community strings used for IP Trap Managers must be listed in this table Up to 5 community names may be entered SNMP Community Capability 5 Current New RW private RO public Add Community String Remove Access Mode Read Only z Parameter Description Community String A community entry authorized for trap management access The maximum string length is 20 characters Access Mode Management access is restricted to Read Only or Read Write Add Remove Add remove strings from the active list Trap Managers The following figure and table describe how to specify management stations that will receive authentication failure messages or other trap messages from the switch Note that all community strings used for IP Trap Managers must be listed in the SNMP Communities table Up to 5 trap managers may be entered Trap Manager Capability 5 Current New NONE l lt lt Add Trap Manager IP address Remove Trap Manager Community String Enable Authentication Traps 7 Parameter Description Trap Manager IP Address IP address of the trap manager Trap Mana
80. r user name and password using an out of band serial connection Access to the Web agent is controlled by the same Administrator user name and password as the on board configuration program Navigating the Web Browser Interface To access the Web browser interface you must first enter a user name and password The default user name is admin with a null password The administrator has read write access to all configuration parameters and statistics Note Based on the default configuration a user is allowed three attempts to enter the correct password on the third failed attempt the current connection is terminated See Console Login Configuration in Chapter 2 3 1 CheetahSwitch Workgroup 4508 Home Page When your Web browser connects with the switch s Web agent the home page is displayed as shown below The home page displays the Main Menu on the left hand side of the screen and the System Information on the right hand side The Main Menu links are used to navigate to other menus and display configuration parameters and statistical data oF To Accton p B9 4 CheetahSwitch Workgroup 4508 Mo de Active Z Accton ZEZ Link Up Link Down CheetahSwitch Workgroup 4508 Manager System Name IP Address 10 1 10 81 System Object ID f 3 6 1 4 1 259 5 6 17 Location E Contact Li System Up Time 0 day 0 hour 22 min 45 sec Telne Connect to User Interface S 1 Send mail to technical s
81. r user specified IP Configuration This is the default setting BOOTP Get IP IP is enabled but will not function until a BOOTP reply has been received BOOTP requests will be periodically broadcast by the switch in an effort to learn its IP address BOOTP values include the IP address default gateway subnet mask TFTP boot file name and TFTP server IP IP Address IP address of the SNMP agent The management agent supports SNMP over UDP IP transport protocol In this environment all systems on the Internet such as network interconnection devices and any PC accessing the agent or running AccView are assigned an IP address Valid IP addresses consist of four numbers of 0 to 255 and separated by periods Anything outside of this format will not be accepted by the configuration program Subnet Mask Subnet mask of the SNMP agent This mask identifies the host address bits used for routing to specific subnets Gateway IP Gateway used to pass trap messages from the switch s agent to the management station Note that the gateway must be defined if the management station is located in a different IP segment Telnet Session Number Sets the number of concurrent Telnet sessions allowed to access the management agent The default is four sessions 1 The default value is null 3 7 CheetahSwitch Workgroup 4508 Access Host Use the Access Host screen to specify subnet groups from which the switch s management a
82. raffic analysis troubleshoot network problems evaluate historical trends or implement pro active management policies RMON has already become a valuable tool for network managers faced with a quickly changing network landscape that contains dozens or hundreds of separate segments RMON is the only way to retain control of the network and analyze applications running at multi megabit speeds It provides the tools you need to implement either reactive or pro active policies that can keep your network running based on real time access to key statistical information This switch provides support for mini RMON which contains the four key groups required for basic remote monitoring These groups include 4 5 CheetahSwitch Workgroup 4508 Statistics Includes all the tools needed to monitor your network for common errors and overall traffic rates Information is provided on bandwidth utilization peak utilization packet types errors and collisions as well as the distribution of packet sizes History Can be used to create a record of network utilization packet types errors and collisions You need a historical record of activity to be able to track down intermittent problems Historical data can also be used to establish normal baseline activity which may reveal problems associated with high traffic levels broadcast storms or other unusual events Historical information can also be used to predict network growth and plan for expansion befor
83. raming bits but including FCS octets 128 255 Byte Frames The total number of packets including bad packets received and transmitted that were between 128 and 255 octets in length inclusive excluding framing bits but including FCS octets 256 511 Byte Frames The total number of packets including bad packets received and transmitted that were between 256 and 511 octets in length inclusive excluding framing bits but including FCS octets 512 1023 Byte Frames The total number of packets including bad packets received and transmitted that were between 512 and 1023 octets in length inclusive excluding framing bits but including FCS octets 1024 1518 Byte Frames The total number of packets including bad packets received and transmitted that were between 1024 and 1518 octets in length inclusive excluding framing bits but including FCS octets 3 31 CheetahSwitch Workgroup 4508 Broadcast Storm Control Use the Broadcast Storm Control page to enable disable broadcast suppression on a per port basis You can also set the broadcast rate threshold above which broadcast packets will be discarded The parameters are shown in the following figure and table Port Filtering Status Filtering Thresholdao24 353422 1 I Enable 10240 2 I Enable 10240 3 I Enable 10240 4 I Enable 10240 5 TM Enable fro240 6 I Enable 10240 7 I Enable 10240 8 I Enable 10240
84. ription Hardware Version Hardware version of the main board POST Version System POST version Firmware Version Version number of the system firmware in ROM Port Number Number of ports Serial Number Serial number of the main board Internal Power Status Power status for the switch Redundant Power Status Redundant power status for the switch 1 These parameters are not implemented in the current hardware version 3 6 Management Guide Network Configuration Use the IP Configuration screen to set the bootup option configure the Ethernet IP addresses for the agent module or set the number or concurrent Telnet sessions allowed The Access Host screen can be used to limit access to the Web management agent to specified subnet groups IP Configuration Use the IP Configuration screen to set the bootup option configure the Ethernet IP addresses for the agent module or set the number or concurrent Telnet sessions allowed The screen shown below is described in the following table T State User Conigured il TP Address formosa Subnet Mask 255 25500 Gateway IP oaos MAC Address oo ES 00 00 33 44 88 99 Maximum Number of Telnet Sessions 1 4 j4 Enable TELNET session M Enable Parameter Description P State Specifies whether IP functionality is enabled via manual configuration or set by Boot Protocol BOOTP Options include USER CONFIG IP functionality is enabled based on the default o
85. roup this port is assigned to MAC Address The MAC address of a host device attached to this switch Port The port the host device is attached to Status The status for an entry can be set to Permanent This entry is currently in use and will remain so after the next reset of the switch DeleteOnReset This entry is currently in use and will remain so until the next reset Invalid Removes the corresponding entry DeleteOnTimeOut This entry is currently in use and will remain so until it is aged out Refer to Address Table Aging Time Other This entry is currently in use but the conditions under which it will remain so differ from the preceding values Show Displays the static address table sorted on VID as the primary key and MAC address as secondary key More Scrolls through entries in the static address table Set Adds the specified entry to the static address table such as shown in the following example VID 1 MAC 00 00 00 e8 34 22 Port 1 Status Permanent 2 39 CheetahSwitch Workgroup 4508 Resetting the System Use the System Restart Menu under the Main Menu to reset the management agent The reset screen also includes an option to return all configuration parameters to their factory defaults CheetahSwitch Workgroup 4508 System Restart Menu Restart Option POST NO Reload Factory Defaults NO Keep IP Setting NO Keep User Authentica
86. s CheetahSwitch Workgroup 4508 System Information Menu System Information Switch Information lt OK gt Use lt TAB gt or arrow keys to move lt Enter gt to select Displaying System Information Use the System Information screen to display descriptive information about the switch or for quick system identification as shown in the following figure and table CheetahSwitch Workgroup 4508 System Information System Description Gigabit Ethernet Switch ES4508 System Object ID 1 3 6 1 4 1 259 6 17 System Up Time 48067 0 day 1 hr 2min 34 sec System Name System Contact System Location lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description System Description System hardware description System Object ID MIB II object identifier for switch s network management subsystem System Up Time Length of time the current management agent has been running Note that the first value is 1 100 seconds System Name Name assigned to the switch system System Contact Contact person for the system System Location Specifies the area or location where the system resides 1 Maximum string length is 255 but the screen only displays 45 characters You can use the arrow keys to browse the whole string 2 4 Management Guide Displaying Version Information Use the Switch Informati
87. s F Enable Parameter Description VLAN The ID for the VLAN currently displayed Range 1 2048 Name A user specified symbolic name for this VLAN String length 8 alphanumeric characters Status Enables disables the specified VLAN 3 22 Management Guide Use the screens shown below to assign ports to the specified VLAN group as an IEEE 802 1Q tagged port Assign ports as tagged if they are connected to 802 1Q VLAN compliant devices If the port is connected to VLAN unaware devices frames will passed to the untagged VLAN group this port has been assigned to under VLAN Port Configuration Egress Ports Forbidden Egress Ports Members Non Members Members Non Members NONE Port lt lt Add lt lt Add Remove gt gt Remove gt gt Parameter Description Egress Ports Adds ports to the specified VLAN Forbidden Egress Ports Prevents a port from being automatically added to this VLAN via GVRP Note that GVRP is not supported by this switch VLAN Static Membership by Port Use the screen shown below to assign VLAN groups to the selected port To perform detailed port configuration for a specific VLAN use the VLAN Static Table Port Number fi Member Non Member NONE 5 lt lt Add Remove gt gt Parameter Description Port Number Port number on the switch selected from the upper display panel Add Remove Add or remove selected VLAN groups for the port indicated in the Port Number
88. s and were otherwise well formed Oversize Frames The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS octets and were otherwise well formed Fragments The total number of frames received that were less than 64 octets in length excluding framing bits but including FCS octets and had either an FCS or alignment error Jabbers The total number of frames received that were longer than 1518 octets excluding framing bits but including FCS octets and had either an FCS or alignment error Collisions The best estimate of the total number of collisions on this Ethernet segment 64 Byte Frames The total number of frames including bad packets received and transmitted that were 64 octets in length excluding framing bits but including FCS octets 65 127 Byte Frames The total number of frames including bad packets received and transmitted that were between 65 and 127 octets in length inclusive excluding framing bits but including FCS octets 128 255 Byte Frames The total number of packets including bad packets received and transmitted that were between 128 and 255 octets in length inclusive excluding framing bits but including FCS octets 256 511 Byte Frames The total number of packets including bad packets received and transmitted that were between 256 and 511 octets in length inclusive excluding framing bits but including FCS octets
89. s configured 802 1Q VLAN Current Table Information Displays VLAN groups and port members 802 1Q VLAN Static Table Configuration Configures VLAN groups via static assignments including setting port members or restricting ports from being dynamically added to a port by the GVRP protocol 802 1Q VLAN Port Configuration Displays configures port specific VLAN settings including PVID ingress filtering and GVRP Network Monitor Menu Port Statistics Displays statistics on network traffic passing through the selected port RMON Statistics Displays detailed statistical information for the selected port such as packet type and frame size counters Unicast Address Table Provides full address listing as well as search and clear functions IP Multicast Registration Table Displays all the multicast groups active on this switch including multicast IP addresses and corresponding VLAN IDs Static Unicast Address Table Configuration Used to manually configure host MAC addresses in the unicast table System Restart Restarts system with options to use POST or to retain factory defaults IP settings or user authentication settings Exit Exits the configuration program 2 3 CheetahSwitch Workgroup 4508 System Information Menu Use the System Information Menu to display a basic description of the switch including contact information and hardware firmware version
90. st groups within each VLAN However note that IGMP neither alters nor routes any IP multicast packets Since IGMP is not concerned with the delivery of IP multicast packets across subnetworks an external IP multicast router is needed if IP multicast packets have to be routed across different subnetworks SNMP Management Software SNMP Simple Network Management Protocol is a communication protocol designed specifically for managing devices or other elements on a network Network equipment commonly managed with SNMP includes hubs switches bridges routers and host computers SNMP is typically used to configure these devices for proper operation in a network environment as well as monitor them to evaluate performance and detect potential problems Accton provides AccView Open network management software for free with all of its manageable products AccView Open contains a complete management platform including network discovery mapping event manager log manager MIB browser RMON analysis tools and device management modules Accton can also provide optional plug in device management modules for HP OpenView software Remote Monitoring Remote Monitoring RMON provides a cost effective way to monitor large networks by placing embedded or external probes on distributed network equipment hubs switches or routers Accton s AccView network management software can access the probes embedded in recent Accton network products to perform t
91. t lt CANCEL gt Use lt TAB gt or arrow keys to move other keys to make changes Parameter Description Port Numeric identifier for switch port Default Ingress User Priority Default priority can be set to any value from 0 7 where 0 3 specifies the low priority queue and 4 7 specifies the high priority queue Number of Egress Traffic Classes Indicates that this switch supports two priority output queues 2 27 CheetahSwitch Workgroup 4508 802 1p Port Traffic Class Information This switch provides two priority levels with weighted fair queuing for port egress This means that any frames with a default or user priority from 0 3 are sent to the low priority queue 0 while those from 4 7 are sent to the high priority queue 1 as shown in the following screen CheetahSwitch Workgroup 4508 802 1P Port Traffic Class Information Port 1 8 Port User Priority 0 1 2 3 4 5 6 F at 0 0 0 0 4 1 Al 1 2 0 0 0 0 1 1 1 1 3 0 0 0 0 1 1 1 1 4 0 0 0 0 3 Bf 1 5 0 0 0 0 pa 4 A 1 6 0 0 0 0 al 1 a 1 7 0 0 0 0 a a k 1 8 0 0 0 0 1 1 1 1 lt OK gt Use lt TAB gt or arrow keys to move lt Enter gt to select Parameter Description Port Numeric identifier for switch port User Priority Shows that user priorities 0 3 specify the low priority queue and 4 7 specify the high priority queue 2 28 Management Guide Configuring Virtual LANs You can use the VLAN configuration menu to assign any
92. t Table Information 802 1Q VLAN Static Table Configuration 802 1Q VLAN Port Configuration Monitoring the Switch Displaying Port Statistics Displaying RMON Statistics Using the Address Table Displaying the IP Multicast Registration Table Configuring Static Unicast Addresses Resetting the System Logging Off the System Chapter 3 Using the Web Agent Navigating the Web Browser Interface Home Page Panel Display Console Configuration Main Menu System Information Switch Information Main Board Network Configuration IP Configuration Access Host SNMP Configuration SNMP Administration Enable SNMP Community Trap Managers Security Configuration Change Password Firmware Upgrade Options Web Upload Management TFTP Download Management Address Table Configuration STA Spanning Tree Algorithm Spanning Tree Information Spanning Tree Configuration STA Port Configuration Configuring Bridge MIB Extensions Bridge Capability Bridge Settings 2 27 2 27 2 28 2 29 2 29 2 30 2 31 2 32 2 33 2 34 2 35 2 37 2 38 2 39 2 40 2 40 3 1 3 1 3 2 3 3 3 3 3 4 3 5 3 6 3 6 3 7 3 7 3 8 3 8 3 9 3 10 3 10 3 10 3 10 3 11 3 12 3 13 3 13 3 15 3 16 3 17 3 17 3 18 Priority 3 18 Port Priority Configuration 3 18 Port Traffic Class Information 3 19 Configuring VLANs 3 20 VLAN Basic Information 3 20 VLAN Current Table 3 21 VLAN Static List 3 22 VLAN Static Table 3 22 VLAN Static Membership by Port 3 23 VLAN Port
93. t will duplicate or mirror all the traffic happening on the monitored port Analyzed Port The port whose traffic will be monitored Port Statistics Use the Port Statistics menu to display Etherlike or RMON statistics for any port on the switch The statistics displayed are indicated in the following figure and table Etherlike Statistics Etherlike Statistics display key statistics from the Ethernet like MIB for each port Error statistics on the traffic passing through each port are displayed This information can be used to identify potential problems with the switch such as a faulty port or unusually heavy loading Values displayed have been accumulated since the last system reboot Port Number ial Etherlike Statistics Alignment Errors O Late Collisions 0 FCS Errors 0 Ezcessive Collisions 0 Single Collision Frames O Internal MAC Transmit Errors 0 Multiple Collision Frarnes 0 Carrier Sense Errors 0 SQE Test Errors 0 Frames Too Long 0 Deferred Transmissions OlInternal MAC Receive Errors 0 3 28 Parameter Management Guide Description Alignment Errors For 10 Mbps ports this counter records alignment errors mis synchronized data packets For 100 Mbps ports this counter records the sum of alignment errors and code errors frames received with rxerror signal FCS Errors The number of frames received that are an integral number of octets in length but do not pass the FCS c
94. tahSwitch Workgroup 4508 Configuring the Serial Port You can access the on board configuration program by attaching a VT100 compatible device to the switch s serial port For more information on connecting to this port refer to the section on Making the Connections Required for System Configuration on page 9 The communication parameters for this port are accessed from the Serial Port Configuration screen seen below and described in the following table CheetahSwitch Workgroup 4508 Serial Port Configuration Management Mode Console Mode Baudrate 19200 Databits 8 Stopbits 6 Parity NONE Time Out in minutes 10 Auto Refresh in seconds 180 lt APPLY gt Use lt TAB gt or arrow keys to move lt Space gt to scroll options lt OK gt lt CANCEL gt Parameter Default Description Management Mode Console Mode Indicates if the console port settings are for direct console connection Baud Rate 19200 The rate at which data is sent between devices Options 2400 4800 9600 19200 38400 57600 115200 bps and Auto detection Note that when Auto is selected you must first press the Enter key once to set the data rate and initialize the connection Databits 8 bits Sets the data bits of the RS 232 port Options 7 8 Stopbits 1 bit Sets the stop bits of the RS 232 port Options 1 2 Parity none Sets the parity of the RS 232 port Options none odd even
95. tatus IP Includes boot state IP address and Telnet session count SNMP Configures communities and trap managers and activates traps Security Sets password for system access Upgrade Downloads new version of firmware to update your system Address Provides full address listing sorted by address or port STA Enables Spanning Tree Algorithm also sets parameters for switch priority hello time maximum message age and forward delay as well as port priority and path cost Port Enables any port and enables disables flow control VLAN Assigns switch ports to form up to 16 independent LAN groups Analyzer Sets analysis and monitored port Statistics Displays statistics on network traffic passing through the selected port Broadcast Enables disables broadcast suppression on a per port basis Also sets the Storm Control broadcast rate threshold above which broadcast packets are discarded Apply Implement the changes made to the current configuration menu Revert Cancel changes made to current configuration menu prior to pressing Apply Help Help on using the Web management interface 3 4 Management Guide System Information Use the System Information screen to display descriptive information about the switch or for quick System Name IP Address System Object ID 1 3 6 1 4 1 259 5 6 17 system identification as shown in the following figure and table i 10 1 10 81 Location
96. thm If the path cost for all ports on a switch are the same the port with the highest priority i e lowest value will be configured as an active link in the spanning tree Where more than one port is assigned the highest priority the port with lowest numeric identifier will be enabled The range is 0 255 Path Cost 100 19 4 This parameter is used by the STA algorithm to determine the best path between devices Therefore lower values should be assigned to ports attached to faster media and higher values assigned to ports with slower media The default and recommended range is Standard Ethernet 100 50 600 Fast Ethernet 19 10 60 Gigabit Ethernet 4 3 10 The full range is 0 65535 Note Path cost takes precedence over port priority Fast STA Mode DISABLED This parameter is used to enable disabled the Fast Spanning Tree mode In this mode ports skip the Blocked Listening and Learning states and proceed straight to Forwarding The Fast STA Mode enables end node workstations and servers to overcome time out problems when the Spanning Tree Algorithm is implemented in a network Therefore the Fast STA Mode should only be enabled for ports that are connected to an end node device 2 19 CheetahSwitch Workgroup 4508 Viewing the Current Spanning Tree Configuration The Spanning Tree Information screen displays a summary of the STA information for the overall bridge or for a specific port To make any changes to the para
97. ticast addresses based on GMRP GARP Multicast Registration Protocol Traffic Classes The switch provides mapping of user priorities to multiple traffic classes Refer to the Priority menu Static Entry Individual Port The switch provides static filtering for unicast and multicast addresses Refer to the Address Table VLAN Learning This switch uses Independent VLAN Learning IVL whereby each port maintains its own VLAN filtering database Configurable PVID Tagging The switch allows you to override the default PVID setting Port VLAN ID used in frame tags and its egress status VLAN Tagged or Untagged on each port Refer to VLAN VLAN Port Configuration Local VLAN Capable This switch does not support multiple local bridges that is multiple Spanning Trees 3 17 CheetahSwitch Workgroup 4508 Bridge Settings Traffic Classes 7 Enable GMRP C Enable GVRP C Enable Parameter Description Traffic Class Multiple traffic classes are supported by this switch as indicated under Bridge Capabilities However the switch supports just two priority queues and only the default port priority can be configured The switch does not support the configuration of traffic class mapping Therefore this parameter under Bridge Settings is set to disabled and cannot be enabled Note This switch does not support GMRP or GVRP Therefore the GMRP and GVRP functions cannot be enabled from this
98. tion NO Restart lt OK gt Use lt TAB gt or arrow keys to move lt Space gt to scroll options Parameter Description POST Runs the Power On Self Test Reload Factory Defaults Reloads the factory defaults Keep IP Setting Retains the settings defined in the IP Configuration menu Keep User Authentication Retains the user names and passwords defined in the Console Login Configuration menu Restart Restarts the switch Logging Off the System Use the Exit command under the Main Menu to exit the configuration program and terminate communications with the switch for the current session 2 40 Chapter 3 Using the Web Agent As well as the menu driven system configuration program the CheetahSwitch Workgroup 4508 provides an embedded HTTP Web agent This agent can be accessed by any computer on the network using a standard Web browser Internet Explorer 4 0 or above or Netscape Navigator 4 0 or above Using the Web browser management interface you can configure the switch and view statistics to monitor network activity The Web interface also provides access to a range of SNMP management functions with its MIB and RMON browser utilities Prior to accessing the switch from a Web browser be sure you have first performed the following tasks 1 Configure it with a valid IP address subnet mask and default gateway using an out of band serial connection or BOOTP protocol 2 Set the Administrato
99. tions Making Connections for System Configuration Onsite Connection Modem Connection Telnet Connection In Band Network Connection Chapter 2 Using the System Configuration Program Main Menu System Information Menu Displaying System Information Displaying Version Information Management Setup Menu Changing the Network Configuration IP Configuration IP Connectivity Test Ping Access Host Configuration HTTP Configuration Configuring the Serial Port Assigning SNMP Parameters Configuring Community Names Configuring IP Trap Managers Console Login Configuration Downloading System Software Using TFTP Protocol to Download Over the Network Configuring the Switch Configuring Port Parameters Viewing the Current Port Configuration Using the Spanning Tree Algorithm Configuring Bridge STA Configuring STA for Ports Viewing the Current Spanning Tree Configuration Displaying the Current Bridge STA Displaying the Current STA for Ports Using a Mirror Port for Analysis IGMP Multicast Filtering Configuring IGMP Broadcast Storm Control Configuring Bridge MIB Extensions NN 3m oa ann nun I dwn hAnna OONN A Aa NN eae NDS 2 6 2 7 2 8 2 8 2 9 2 10 2 11 2 12 2 12 2 13 2 14 2 14 2 15 2 16 2 17 2 17 2 18 2 19 2 20 2 20 2 21 2 23 2 23 2 24 2 25 2 26 Configuring Traffic Classes Port Priority Configuration 802 1p Port Traffic Class Information Configuring Virtual LANs 802 1Q VLAN Base Information 802 1Q VLAN Curren
100. to Read Only or Read Write Status Sets administrative status of entry to enabled or disabled Note This switch has default community strings of public with read only access and private with read write access Configuring IP Trap Managers The following figure and table describe how to specify management stations that will receive authentication failure messages or other trap messages from the switch Note that all community strings used for IP Trap Managers must be listed in the SNMP Communities table Up to 5 trap managers may be entered IP Address Community Name Status 1 10 1 0 23 public DISABLED 2 3 4 5 lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move other keys to make changes CheetahSwitch Workgroup 4508 SNMP Configuration IP Trap Managers 2 12 Management Guide Parameter Description IP Address IP address of the trap manager Community Name A community specified in the SNMP Communities table Status Sets administrative status of entry to enabled or disabled Console Login Configuration Use the Management Setup Console Login Configuration to restrict management access based on specified user names and passwords or to set the invalid password threshold and timeout There are two user types Administrator and Guest Only the Administrator has write access for parameters governing the SNMP agent You should therefore assign a user name
101. to move lt Space gt to scroll options Parameter Description SNMP Administration Enables disables the SNMP function of the agent Send Authentication Issue a trap message to specified IP trap managers whenever Fail Traps authentication of an SNMP request fails The default is disabled Send Link Up Link Down Issue a trap message to specified IP trap managers whenever a link Traps changes its up down state The default is enabled SNMP Communities Assigns SNMP access based on specified community strings IP Trap Managers Specifies management stations that will receive authentication failure messages or other trap messages from the switch CheetahSwitch Workgroup 4508 Configuring Community Names The following figure and table describe how to configure the community strings authorized for trap management access All community strings used for IP Trap Managers must be listed in this table Up to 5 community names may be entered Community Name Access Status 1 public READ ONLY ENABLED 2 private READ WRITE ENABLED 3 4 5 lt APPLY gt lt OK gt lt CANCEL gt Use lt TAB gt or arrow keys to move other keys to make changes CheetahSwitch Workgroup 4508 SNMP Configuration SNMP Communities Parameter Description Community Name A community entry authorized for trap management access The maximum string length is 20 characters Access Management access is restricted
102. upport Snr Contact to Accton Web Page Configurable parameters have a dialog box or a drop down list Once a configuration change has been made on a page be sure to click on the Apply button at the bottom of the page to confirm the new setting Alternatively you can click on Revert to clear any changes prior to pressing Apply Note To ensure proper screen refresh after a command entry be sure that Internet Explorer 5 0 is configured as follows Under the menu Tools Internet Options General Temporary Internet Files Settings the setting for item Check for newer versions of stored pages should be Every visit to the page 3 2 Management Guide Panel Display The Web Agent displays an image of the switch s ports showing port link and activity Clicking on the image of a port displays statistics and configuration information for the port Clicking on the image of the serial port labelled Mgmt displays the Console Configuration screen Model Active 00 00 00 00 oe B oe 90 LinkUp J Link Down Console Configuration Click on the serial port icon in the switch image to display and configure the out of band serial port connection as shown in the following figure and table Baudrate i9200 Time Out 0 minute s Databits a Stopbits ha Parity None Auto Refresh Time 5 second s Parameter Default Description Baudrate 19200 Th
103. vices have the same priority the device with the lowest MAC address will then become the root device Enter a value from 0 65535 Remember that the lower the numeric value the higher the priority Forward Delay 15 The maximum time in seconds the root device will wait before changing states i e listening to learning to forwarding This delay is required because every device must receive information about topology changes before it starts to forward frames In addition each port needs time to listen for conflicting information that would make it return to a blocking state otherwise temporary data loops might result The maximum value is 30 The minimum value is the higher of 4 or Max Message Age 2 1 2 18 Configuring STA for Ports Management Guide The following figure and table describe STA configuration for ports Cheet Spanning Tree 1000SX 1000SX 1000SX 1000SX 1000SX 1000SX 1000SX 1000SX BIHROAWNH lt APPLY gt Use lt TAB gt or arrow keys to move other keys to make changes ahSwitch Workgroup 4508 Port Configuration Port 1 8 Priority Cost Fast STA Mode 128 4 DISABLED 128 4 DISABLED 128 4 DISABLED 128 4 DISABLED 128 4 DISABLED 128 4 DISABLED 128 4 DISABLED 128 4 DISABLED lt OK gt lt CANCEL gt Parameter Default Description Type Shows port type as 1000BASE SX Priority 128 Defines the priority for the use of a port in the STA algori
104. xplicit or implicit tagging e Port overlapping allowing a port to participate in multiple VLANs End stations can belong to multiple VLANs e Passing traffic between VLAN aware and VLAN unaware devices e Two level priority queue Assigning Ports to VLANs Before enabling VLANs for the switch you must first assign each port to the VLAN group s it will participate in By default all ports are assigned to VLAN 1 as untagged ports Add a port as a tagged port that is a port attached to a VLAN aware device if you want it to carry traffic for one or more VLANs and the device at the other end of the link also supports VLANs Then assign the port at the other end of the link to the same VLAN s However if you want a port on this switch to participate in one or more VLANs but the device at the other end of the link does not support VLANs then you must add this port as an untagged port that is a port attached to a VLAN unaware device Port based VLANs are tied to specific ports The switch s forwarding decision is based on the destination MAC address and its associated port Therefore to make valid forwarding and flooding decisions the switch learns the relationship of the MAC address to its related port and thus to the VLAN at run time 4 2 Management Guide VLAN Classification When the switch receives a frame it classifies the frame in one of two ways Ifthe frame is untagged the switch assigns the frame to an assoc

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