Managing Your Catalyst 2600

• Base and Slots---The ports of the switch (Base) or a UFC (Slot) whose address tables include this MAC address.
  

  To	Select	Then
  Search for a specific MAC address...	Search	Specify the address.

Viewing the Address Table for Each Domain

To view the entries in the address table for each domain, select Domain Address Table on the Status/Statistics Menu. The Domain Address Table panel (Figure 7-6) is displayed. The entries are listed in the order in which they were encountered.

Figure 7-6 : Domain Address Table Panel

The following information is displayed on this panel:

• Mac Address---The MAC address.
  

• Local Port---The type of address or association of the address with the listed port, such as:
  

  • Multicast for a multicast address.
    

  • Broadcast for a broadcast address.
    

  • Filtered for a filtered packet address.
    

  • STP Mcast for a BPDU multicast address reserved for the port (hello packet).
    

  • STP Port xx for an address reserved for a Spanning-Tree Protocol port.
    

  • Swtch Base for the address assigned to the Catalyst 2600.
    

  • Domain xx for a address assigned to a virtual LAN domain.
    

  • Unknown for a MAC address with an unknown location.
    

Highlighted entries indicate filtered ports.

• Base and Slots---The ports of the switch (Base) or a UFC (Slot) whose address tables include this MAC address.
  

  To	Select	Then
  View the address table for another domain...	Change_Displayed_Domain	Specify the domain.
  Search for a specific MAC address...	Search	Specify the address.

Viewing the Address Table for a Specific Port

To view the entries in the address table of a specific port, select Port N Address Table on the Status/Statistics Menu and specify a port number. The Port N Address Table panel (Figure 7-7) is displayed. The port address table can contain up to 1790 entries. The entries are listed in the order in which they were encountered.

Figure 7-7 : Port N Address Table Panel

The following information is displayed on this panel:

• Mac Address---The MAC address.
  

• Local Port---The type of address or association of the address with the listed port, such as:
  

  • Multicast for a multicast address.
    

  • Broadcast for a broadcast address.
    

  • Filtered for a filtered packet address.
    

  • STP Mcast for a BPDU multicast address reserved for the port (hello packet).
    

  • STP Port xx for an address reserved for a Spanning-Tree Protocol port.
    

  • Swtch Base for the address assigned to the Catalyst 2600.
    

  • Domain xx for a address assigned to a virtual LAN domain.
    

  • Unknown for a MAC address with an unknown location.
    

Highlighted entries indicate filtered ports.

• Source Packets (SrcPkts)---The number of packets received from this address.
  

• Destination Packets (DstPkts)---The number of packets sent to this address.
  

• Source Bytes (SrcBytes)---The number of bytes received from this address.
  

• Destination Bytes (DstBytes)---The number of bytes sent to this address.
  

  To	Select	Then
  Search for a specific MAC address...	Search	Specify the address.

Viewing Statistics

You can view operating statistics for:

• The Catalyst 2600 as a whole
  

• Individual domains
  

• Individual ports
  

Viewing Catalyst 2600 Operating Statistics

To view operating statistics for the Catalyst 2600, select Switch Statistics on the Status/Statistics Menu. The Switch Statistics panel (Figure 7-8) is displayed. This panel is automatically refreshed every 10 seconds.

Figure 7-8 : Switch Statistics Panel

The following information is displayed on this panel:

• System Up Time---The length of time (in hours, minutes, and seconds) since the last reset or power cycle.
  

• Board Temperature---Whether the board temperature is Normal or Unacceptably high (over 122°F or 50°C).
  

• Currently Active Addresses---The number of entries in the address table, that represent currently active stations, or nodes, on all ports of the Catalyst 2600.
  

• Largest Number of Addresses---The largest number of addresses in the address table at any one time since the last reset or power cycle.
  

• Maximum Number of Addresses---The maximum number of addresses that the Catalyst 2600 can support simultaneously.
  

• Frames Transmitted---The number of frames transmitted from the Catalyst 2600 processor.
  

• Frames Received---The number of frames received by the Catalyst 2600 processor.
  

• Error Frames Received---The number of frames received that were too long or short.
  

• Frames Lost---The number of frames dropped because of errors.
  

• Pending Send Requests---The number of frames in the send queue.
  

• Frame Transmit Errors---The number of frames unable to be transmitted by the processor because of transmit errors.
  

• Maximum Hash Chain---The largest number of addresses that have hashed to the same location in look-up tables having the same index.
  

• Address Table Full---The number of times the address table has reached capacity.
  

  To	Select
  Reset the counters...	Reset_Statistics

Viewing Statistics for Each Domain

To view statistics for each domain, select Domain Statistics on the Status/Statistics Menu. The Domain Statistics panel (Figure 7-9) is displayed.

Figure 7-9 : Domain Statistics Panel

The following information is displayed on this panel:

• Currently Active Addresses---The number of addresses currently in the master address table that are recognized by ports belonging to this domain.
  

• Largest Number of Addresses---The largest number of addresses in the master address table since the last reset or power cycle that are recognized by ports belonging to this domain.
  

• Maximum Number Of Addresses---The maximum number of addresses allowed in the domain.
  

  To	Select	Then
  View statistics for another domain...	Change_Displayed_Domain	Specify the domain.

Viewing Statistics for a Specific Port

To view statistics for a specific port, select Port N Statistics on the Status/Statistics Menu and specify the port number. The Port N Statistics panel (Figure 7-10) is displayed. This panel is automatically refreshed every 10 seconds.

Figure 7-10 : Port N Statistics Panel 1

The following information is displayed on this panel:

• Frames Received---The number of frames received by the port.
  

• Octets Received---The number of octets, or bytes, received.
  

• Frames Transmitted---The number of frames transmitted by the port.
  

• Octets Transmitted---The number of octets, or bytes, transmitted by the port.
  

• Multicast/Broadcast Frames Received---The number of frames received that have the multicast bit set or are broadcast frames.
  

• Frames Local to Port (not forwarded)---The number of frames that are confined to this segment and are not forwarded.
  

• Frames Switched by Hardware---The number of frames received on this port and forwarded by the Catalyst 2600 hardware to another port without learning.
  

• Frames Delivered to Processor---The number of frames received on this port and forwarded to the processor for learning.
  

• All Frames Forwarded---The number of frames received on this port and forwarded by the Catalyst 2600 hardware or processor.
  

• Number of Learned Stations---The number of addresses in the address table.
  

• Currently Active Addresses---The sum of local and remote addresses.
  

• Local Address Entries---The number of addresses on this port that belong to the local segment.
  

• Remote Address Entries---The number of addresses on this port that belong to another segment.
  

• Largest Number of Addresses---The largest number of addresses active since the last reset of the Catalyst 2600.
  

• Address Table Overflows---The number of times the address table has reached the maximum number of entries.
  

• Time Since Last Reset---Displays the time (in hours, minutes, and seconds) since the port traffic counters were last reset.
  

  To	Select
  View additional statistics...	More
  Reset the counters...	Reset_Statistics

Figure 7-11 : Port N Statistics Panel 2

The statistics shown on this panel provide additional granularity for analyzing traffic and switch performance statistics. Some error events are counted for possible fault analysis.

• Unicast Frames Received---The number of frames received by this port that are designated for a single destination address.
  

• Non-Unicast Frames Received---The number of frames received by this port that are designated for a general broadcast or multicast address.
  

• Hi Port Bytes Transmitted---The number of bytes transmitted from the high-priority transmit queue.
  

• Low Port Bytes Transmitted---The number of bytes transmitted from the low-priority transmit queue.
  

• Hi Port Unicast Frames Xmt---The number of unicast frames transmitted from the high-priority transmit queue.
  

• Low Port Unicast Frames Xmt---The number of unicast frames transmitted from the low-priority transmit queue.
  

• Hi Port Non-Unicast Frames Xmt---The number of general broadcast or multicast frames transmitted from the high-priority transmit queue.
  

• Low Port Non-Unicast Frames Xmt---The number of general broadcast or multicast frames transmitted from the low-priority transmit queue.
  

• Receive Buffer Queue Full---The number of instances in which a packet arrived on the port and there were no available receive buffers.
  

• Receive Internal Packet Errors---The number of times that a packet was received with an error (for example, CRC or incomplete frame) that resulted in an abnormal termination of a cut-through operation.
  

• Receive Frames Too Long---The number of frames received that exceed the maximum frame length limit of 4540 bytes.
  

• Hi Port Internal Packet Errors---The number of transmits from the high-priority transmit queue in which an abnormal frame termination occurred.
  

• Low Port Internal Packet Errors---The number of transmits from the low-priority transmit queue in which an abnormal frame termination occurred.
  

• Hi Port Packets in Queues---The current number of packets in the high-priority transmit queue awaiting transmission.
  

• Low Port Packets in Queues---The current number of packets in the low-priority transmit queue awaiting transmission.
  

• Transmit Buffer Queue Full---The number of packets lost because of the inability of the transmit queue to accept a packet from another port.
  

• Port DATA Bus Timeout Errors---The number of receive packets discarded because of failure of the target port to accept the packet.
  

  To	Select
  Reset the counters...	Reset_Statistics
  Return to the previous panel...	More

Viewing Filters and Security Mode for a Specific Port

To display the defined filters and security mode for a specific port, select View Port N Filters on the Status/Statistics Menu. The Port N Filters panel (Figure 7-12) is displayed.

Figure 7-12 : Port N Filters Panel

The following information is displayed on this panel:

• Index---The identifier of the filter entry.
  

• MAC Address---The MAC address contained in packets to be filtered.
  

• Description---The filter action taken on the packet with the specified MAC address.
  

You cannot change any information on this panel. To change the filters or security mode, refer to the section "Limiting Scope and Access."

Viewing Spanning-Tree Information for Each Domain

To display the spanning-tree parameters for each domain, select Current Spanning Tree on the Status/Statistics Menu. The Current Spanning Tree panel (Figure 7-13) is displayed.

Figure 7-13 : Current Spanning Tree Panel

The following information is displayed on this panel:

• Hello Time---The time (in seconds) that the root waits between sending configuration messages. This time is advertised by the root and used by all devices and switches in the active topology of the spanning-tree network.
  

• Max Message Age---The time at which the configuration message used by the spanning-tree algorithm should be discarded. This time is advertised by the root and used by all devices and switches in the active topology of the spanning-tree network.
  

• Forward Delay---The time the root waits between transitions from listening to learning, and from learning to forwarding. This time is advertised by the root and used by all devices and switches in the active topology of the spanning-tree network.
  

• Root---The priority and MAC address of the device in the spanning tree that this Catalyst 2600 has accepted as the root device.
  

• Root Port---The number of the port on this Catalyst 2600 that is closest to the root. This Catalyst 2600 communicates with the root through this port. If there is no root port, this Catalyst 2600 has been accepted as the root of the spanning-tree network.
  

• Port ID---The port ID that is used to determine the role of the port in the spanning tree. The port ID is expressed in the form port priority.port number .
  

• Port Cost---The cost associated with each port. Lower numbers are generally assigned to ports attached to faster media (such as FDX or TokenChannel), and higher numbers are generally assigned to ports attached to slower media (such as 2400-baud modem links).
  

• Port Status---The current status of this port within the spanning tree. Possible values are:
  

  • DSB (Disabled)
    

  • BLK (Blocked)
    

  • LSN (Listening)
    

  • LRN (Learning)
    

  • FWD (Forwarding)
    

The rules that define the state of the port are as follows:

• A port on a network segment that contains no other switch or bridge is always forwarding.
  

• If two ports of the Catalyst 2600 are connected to the same network segment and there is no other bridge or switch, the port with the lower ID is forwarding and the other is blocked.
  

• When the switch is booted, all ports are blocked initially, and then some of them change to a different state: listening, learning, and forwarding, in that order. To see the change in states you must repeatedly exit from this menu, and then select it again. All ports that are going to change states from blocking to forwarding will have done so after two to three times the value of:
  

Switch Maximum Message Age + (2 x Switch Forward Delay)

• 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 Switch/Bridge ID---The priority and MAC address of the device through which this port has determined it must communicate with the root of the spanning tree.
  

• Designated Port ID---The port on the designated bridge through which this Catalyst 2600 will communicate with the root of the spanning tree. This information is useful if the Catalyst 2600 is the designated bridge on one or more network segments.
  

• # Topo Changes---The number of topology changes, that is, the number of times the port has entered the forwarding state plus the number of times the port has made the transition from forwarding to blocking. The counter is reset when the switch is reset or the spanning tree is turned on.
  

• Time Since Last Change---The time since the port last entered the forwarding state or made the transition from forwarding to blocking.
  

You cannot change any information on this panel. To change the spanning tree parameters, refer to the section "Configuring Spanning-Tree Parameters."

To	Select	Then
View Spanning Tree parameters for another domain...	Change_Displayed_Domain	Specify the domain.

Viewing the Message Log

To view the message log, select Message Log on the Status/Statistics Menu. The Message Log Information panel is displayed. The data on this panel is useful to technical experts in solving complex problems.

The following information is displayed on this panel:

• Log---Index number identifying the log file.
  

• Type---The message type. Possible values are:
  

  • W---Warning
    

  • I---Informational
    

• Message Content---The full text of the message.
  

  To	Select
  Delete the contents of the message log...	Clear_Logs

Viewing Route Descriptors

You can view route descriptors, which are used in forwarding source-routed frames, for:

• The Catalyst 2600 as a whole
  

• Individual domains
  

• Individual ports
  

Viewing the Master Route Descriptor Table

To view all the route descriptors (and their associated ports) that have been learned by the Catalyst 2600, select Master Route Descriptor Tables on the Status/Statistics Menu. The Master Route Descriptor Table panel (Figure 7-14) is displayed. These descriptors are contained within the 10,000 entries allowed for the master address table.

Figure 7-14 : Master Route Descriptor Table Panel

The following information is displayed on this panel:

• Route Descriptor---The route descriptor associated with a port in the format:
  

local_segment_number:bridge_number:remote_segment_number        

• Local Port---The number of the port with which this route descriptor is associated.
  

• Ports: Base and Slots---The ports of the switch (Base) or a UFC (Slot) whose address tables include this route descriptor.
  

Viewing Route Descriptor Table for Each Domain

To view the entries in the route descriptor table for each domain, select Domain Route Descriptor Tables on the Status/Statistics Menu. The Domain Route Descriptor Table panel (Figure 7-15) is displayed.

Figure 7-15 : Domain Route Descriptor Table Panel

The following information is displayed on this panel:

• Route Descriptor---The route descriptor associated with a port in the format:
  

local_segment_number:bridge_number:remote_segment_number        

• Local Port---The number of the port with which this route descriptor is associated.
  

• Ports: Base and Slots---The ports of the switch (Base) or a UFC (Slot) whose address tables include this route descriptor.
  

  To	Select	Then
  View the route descriptor tables for another domain...	Change_Displayed_Domain	Specify the domain.

Viewing the Route Descriptor Table for a Specific Port

To view the entries in the route descriptor table for a specific port, select Port N Route Descriptor Tables on the Status/Statistics Menu and specify a port number. The Port N Route Descriptor Table panel (Figure 7-16) is displayed. These descriptors are contained within the 1790 entries allowed for each port address table.

Figure 7-16 : Port N Route Descriptor Table Panel

The following information is displayed on this panel:

• Route Descriptor---The route descriptor associated with a port in the format:
  

local_segment_number:bridge_number:remote_segment_number        

• Local Port---The number of the port with which this route descriptor is associated.
  

• Source Packets (SrcPkts)---The number of packets received from this address.
  

• Destination Packets (DstPkts)---The number of packets sent to this address.
  

• Source Bytes (SrcBytes)---The number of bytes received from this address.
  

• Destination Bytes (DstBytes)---The number of bytes sent to this address.
  

Configuring SNMP Parameters

To allow the Catalyst 2600 to be managed by an SNMP manager, you must first configure the SNMP parameters. To view or set SNMP parameters, such as the community names, where traps are to be sent, and whether authentication failure traps should be sent, select SNMP Configuration on the Configuration Menu. The SNMP Configuration panel (Figure 7-17) is displayed.

Figure 7-17 : SNMP Configuration Panel

The following information is displayed on this panel:

• Send Authentication Failure Traps---Indicates whether an authentication trap should be issued to Trap Receivers whenever authentication of an SNMP request fails. Traps indicating cold and warm boots are always sent.
  

  To	Select	Then
  Change the current settings...	The appropriate parameter...	Specify the value.
  View or change SNMP community names and privileges...	Community Strings	Refer to "Specifying Community Names".
  View or change which SNMP managers are to receive traps for which domains...	Trap Receivers	Refer to "Specifying Trap Receivers".
  Save your changes...	Return

Specifying Community Names

To view or change the community names for the domains of the Catalyst 2600, select Community Strings on the SNMP Configuration panel. The Community Strings panel (Figure 7-18) is displayed. A community name is a name associated with the Catalyst 2600 and a set of SNMP managers that are allowed to manage it with the specified privilege level.

Figure 7-18 : Community Strings Panel

The following information is displayed on this panel:

• Index---The identifier of the community name entry.
  

• Community Name---The name, or password, used to identify the SNMP managers.
  

• Mode---The privilege level assigned to this name. Read specifies that SNMP managers can only view SNMP information. Read/Write specifies that SNMP managers can both view and change SNMP information.
  

Entries are displayed in the order in which they are entered. There is a limit of 10 community names.

To	Select	Then
Add a community name...	Add	Specify the community name and privilege.
Change a community name or privilege...	Change	Specify the index number of the entry to be changed and enter the new information.
Delete a community name...	Delete	Specify the name to be deleted.
Delete all community names...	Clear_Table
Save your changes...	Return

Specifying Trap Receivers

To view or change the list of SNMP managers to which traps are sent, select Trap Receivers on the SNMP Configuration panel. The Trap Receivers panel (Figure 7-19) is displayed.

Figure 7-19 : Trap Receivers Panel

The following information is displayed on this panel:

• Index---The identifier of the trap receivers entry.
  

• IP Address---The IP address of the SNMP manager.
  

• Community Name---The name used to identify the SNMP managers.
  

• Domain---The domain for which traps are sent to the specified SNMP manager.
  

The trap receivers list can contain a maximum of six entries.

To	Select	Then
Add an entry to the list...	Add	Specify the IP address, community name, and domain.
Change an entry in the list...	Change	Specify the index number of the entry to be changed and enter the new information.
Delete an entry...	Delete	Specify the index number of the entry to be deleted.
Delete all entries...	Clear_Table
Save your changes...	Return

Monitoring Port Traffic

The Catalyst 2600 allows you to configure a Switched Port Analyzer port for monitoring port traffic. This Switched Port Analyzer support allows you to monitor traffic on any of the Token Ring ports using a customer-supplied monitoring device or trace tool. To configure a Switched Port Analyzer port, select Switched Port Analyzer Configuration on the Configuration Menu. The Switched Port Analyzer Configuration panel (Figure 7-20) is displayed.

Catalyst 2600 Boot Firmware P/N 11152-00 RevA, Copyright 1996         
- Initiating bootstrapping sequence. 
- Boot image integrity check...Passed. 
- Control transferred to boot process. 
- Relocating main image to DRAM........Done. 
- Main image integrity...succeeded. 
- Control transferred to main process. 
Catalyst 2600 started on Fri. January 6, 2000 12:58:0 
4 Megabytes System memory 
2 Megabytes Network memory 
- Initialization started 
- File system initialized 
- System temperature is within safe operating levels 
- Warmboot initialization started 
- LAN ports detected: 
- Token Ring Ports: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
- Initializing Ports: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
- Initializing system address table 
- No existing diagnostic information, forcing diagnostic mode 
- Starting Power Up Diagnostics test 
- UART loopback test on diagnostic port...Passed 
- UART loopback test on console port...Passed 
- RTC memory test...Passed 
- Real Time Clock test...Passed 
- CPU loopback test..............Passed 

- Token Ring Port loopback test...........Passed 
- Token Ring Port cross port loopback test...........Passed 
- Token Ring Port broadcast test...........Passed 
- CPU broadcast test...Passed 
- Completing Power Up Diagnostic 
- Activating Ports: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
- Activating IP 
- Catalyst 2600 initiating bootp requests on one or more domains 
- System initialization complete 
Press RETURN key to activate console...