Table Of Contents
Catalyst 5000 Series Token Ring Software Release 3.2(3) Release Note
Amendments to the Documentation
Adding or Changing TrBRF Parameters
Adding or Changing TrBRF Parameters
Verifying the SPAN Configuration
Displaying Token Ring Statistics, Status, and Station Information
Problems Fixed in Token Ring Software Release 3.2(3)
Known Problems in Token Ring Software Release 3.2(3)
Image Download Requires at Least One Enabled Port
Auto Speed Detection Does Not Work at 4-Mbps On Fiber Token Ring Module
Fiber Module Port Can Take Up to 20 Seconds to Recognize a Link is Down
The "show counters" Command Displays Zero for Token Ring Explorer Counters
BPDU Broadcast Storm May Occur on SPAN Port Upon Insertion Into the Ring
Fiber Module Port May Hang When Trying to Insert Into RIRO Port of a Hub
Availability of Catalyst 5000 Software Upgrades on CCO
Catalyst 5000 Series Token Ring Software Release 3.2(3) Release Note
November 25, 1998
This document describes the Catalyst 5000 series Token Ring software release 3.2(3), including a list of problems fixed in this release and a list of known (open) problems for this release. This document is available on the Cisco Connection Documentation CD-ROM or in print.
Sections in this document include the following:
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Amendments to the Documentation
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Catalyst 5000 Documentation
The following documents are available for the Catalyst 5000 series switch:
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For quick software configuration procedures for the Catalyst 5000 series switches, refer to the Catalyst 5000 Series Quick Software Configuration publication. For detailed software configuration information and procedures, refer to the Catalyst 5000 Series Software Configuration Guide.
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Amendments to the Documentation
This section contains information that was not included in the configuration note that was shipped with the Token Ring module.
RMON Support
The description of the Token Ring ring station control table and Token Ring ring station order table are incorrect. The descriptions should read as follows:
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The Catalyst 5000 series Token Ring module supports the ringStationControlTable portion of the Token Ring Ring Station Group. This support allows a Catalyst 5000 series Token Ring module to gather segment information from each ring segment to which it is attached. This segment information includes includes Ring State, Beacon Sender, Beacon NAUN, and Active Monitor MAC Address, as well as Station Order Changes.
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An ordered list of the stations on the monitored rings.
Configuring the Port Priority
The Catalyst 5000 Series Token Ring Module Configuration Note documents that the possible priority range for physical and logical ports is 0 through 255 (decimal) and that the default is 128.
While this information is correct for the physical Token Ring ports, it is incorrect for the logical ports (the connection between the Token Ring Bridge Relay Function [TrBRF] and Token Ring Concentrator Relay Function [TrCRF]). The valid priority range for the logical Token Ring ports is 0 through 7. The default is 4.
Adding or Changing TrBRF Parameters
The Catalyst 5000 series Token Ring software release 3.2(1) and later supports MTUs of up to 17800 bytes. The initial release of the Catalyst 5000 series Token Ring software did not support MTUs greater than 4472. Release 3.2(1) and later supports MTUs of up to 17800.
When configuring larger MTUs for the ports or TrBRFs on a Token Ring module, remember the following:
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If you reduce the MTU for a TrBRF to a value that is less than the MTU currently configured for the individual ports or LECs in the TrBRF, the MTU for the ports or LECs is automatically reduced to a value (1500, 4472, 8144, or 17800) that is less than that specified for the TrBRF.
Adding or Changing TrBRF Parameters
The Catalyst 5000 series NMP software release 4.2 supports an additional set vlan command parameter, decring. The decring keyword enables you to specify a decimal logical ring number for TrCRFs. Previous releases of the NMP software allowed only hexadecimal ring numbers to be specified.
The syntax description for the decring keyword is as follows:
Monitoring Network Traffic
To aid in network management, the Catalyst 5000 series Token Ring module allows you to configure a Switched Port Analyzer (SPAN) port for monitoring port traffic. This SPAN support allows you to perform active monitoring on any of the Token Ring ports or TrCRFs. Active port monitoring allows you to copy the traffic being switched by a source port (Token Ring port or TrCRF) to a Token Ring destination port located in the same switch. Only the logical link control (LLC) traffic that is being switched by the source port is monitored when you configure active port monitoring. The MAC frames are not monitored.
When configuring SPAN, you can configure for a single source, multiple source ports, or you can configure a TrCRF as a source port. However, when configuring SPAN, keep in mind the following:
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Configuring SPAN
To configure a SPAN port, issue the following command in privileged mode, specifying the source port (only one source port if you are configuring the SPAN port to monitor information transmitted from a source port), the destination port, and the direction of traffic that you want to monitor that is being switched on the source port.
set span {src_mod/src_port | src_vlan} dest_mod/dest_port [rx | tx | both]
After entering the set span command and specifying a source port and destination port, you see a display similar to the following:
Console> (enable) set span 3/2 4/6 txEnabled monitoring of Port 3/2 transmit traffic by Port 4/6Console> (enable)Enabling and Disabling SPAN
After configuring a SPAN port, ensure that SPAN has been enabled on the switch. If SPAN is not enabled on the switch, you can enable it using the set span command.
To enable SPAN, issue the following command while in privileged mode:
set span enable
To disable SPAN, issue the following command while in privileged mode:
set span disable
Verifying the SPAN Configuration
To verify the SPAN configuration, issue the following command:
show span
After entering the show span command, you see a display similar to the following:
Console> (enable) show spanStatus : enabledAdmin Source: Port 3/2Oper Source : Port 3/2Destination : Port 4/6Direction : transmitConsole> (enable)describes the information returned by the show span command.
Table 1 Show span Command Field Descriptions
Displaying Token Ring Statistics, Status, and Station Information
You can use the following commands to view statistics and status information associated with Token Ring stations that are located on monitored rings.
show station controltable
Use the show station controltable normal command to display a collection of statistics and status information associated with each Token Ring station on the local ring. In addition, this command provides status information for each ring being monitored.
show station controltable [mod_num[/port_num]]
Syntax Description
Default
This command has no default setting.
Command Type
Switch command
Command Mode
Normal
Example
The following example shows how to display a collection of statistics and status information associated with each Token Ring station on Token Ring module 3:
Console> (enable) show station controltable 3Port TableSize ActiveStation RingState----- ----------------- ----------------- -----------------3/1 0 0 Normal Operation3/2 0 0 Normal Operation3/3 0 0 Normal Operation3/4 0 0 Normal Operation3/5 0 0 Normal Operation3/6 0 0 Normal Operation3/7 0 0 Normal Operation3/8 0 0 Normal Operation3/9 0 0 Normal Operation3/10 0 0 Normal Operation3/11 0 0 Normal Operation3/12 0 0 Normal Operation3/13 0 0 Normal Operation3/14 0 0 Normal Operation3/15 0 2 Normal Operation3/16 0 0 Normal OperationPort BeaconSender BeaconNAUN OrderChanges----- ----------------- ----------------- -----------------3/1 00:00:00:00:00:00 00:00:00:00:00:00 03/2 00:00:00:00:00:00 00:00:00:00:00:00 03/3 00:00:00:00:00:00 00:00:00:00:00:00 03/4 00:00:00:00:00:00 00:00:00:00:00:00 03/5 00:00:00:00:00:00 00:00:00:00:00:00 03/6 00:00:00:00:00:00 00:00:00:00:00:00 03/7 00:00:00:00:00:00 00:00:00:00:00:00 03/8 00:00:00:00:00:00 00:00:00:00:00:00 03/9 00:00:00:00:00:00 00:00:00:00:00:00 03/10 00:00:00:00:00:00 00:00:00:00:00:00 03/11 00:00:00:00:00:00 00:00:00:00:00:00 03/12 00:00:00:00:00:00 00:00:00:00:00:00 03/13 00:00:00:00:00:00 00:00:00:00:00:00 03/14 00:00:00:00:00:00 00:00:00:00:00:00 03/15 00:00:00:00:00:00 00:00:00:00:00:00 13/16 00:00:00:00:00:00 00:00:00:00:00:00 0Console> (enable)describes the fields shown in the show station controltable command output.
Table 2 Show station controltable Command Field Descriptions
Related Commands
show counters
show station ordertableshow station ordertable
Use the show station ordertable normal command to display a listing of the order of stations on the monitored rings.
show station ordertable [mod_num[/port_num]]
Syntax Description
Default
This command has no default setting.
Command Type
Switch command
Command Mode
Normal
Example
The following example shows how to display:
Console> show station ordertable 3Port OrderIndex Address----- --------------- -----------------3/15 1 00:05:77:05:40:632 00:00:30:cf:a0:98Console>describes the fields shown in the show station ordertable command output.
Table 3 Show station ordertable Command Field Descriptions
Port
Module and port number.
OrderIndex
Location of the station with respect to other stations on the ring.
Address
Physical address of the station.
Related Commands
show counters
show station ordertableConfiguring Filters
With the Catalyst 5000 supervisor engine module software releases 3.2(4) or 4.3(2) image used with the Catalyst 5000 Token Ring software release 3.2(3), two new parameters have been added to the set port filter command that provide the ability to configure a MAC address filter as both a source or a destination for a specified port.
The new syntax descriptions for configuring MAC address filters using the set port filter command are as follows:
set port filter <mod_num/port_num> <mac_addr> <permit|deny>
set port filter <mod_num/port_num> <mac_addr> <permit_src|permit_dst>
set port filter <mod_num/port_num> <mac_addr> <deny_src|deny_dst>
Syntax Description
For more information on the set port filter command, refer to the configuration note that shipped with your Token Ring module.
Fixing a Corrupted Flash
In the event of a corrupted Flash, a Catalyst 5000 series switch can operate in boot mode. However, when the switch is operating in boot mode, a version 3.1 boot ROM is required for the supervisor module to recognize the Token Ring module.
If the Flash becomes corrupted and the supervisor engine module is running a version 3.1 boot ROM, you can download a new image through a Token Ring module while the switch is in boot mode.
If the Flash becomes corrupted and the supervisor engine module is not running a version 3.1 boot ROM, you can download a new Flash image to the switch while in boot mode via either of the following methods:
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If you do need to upgrade your boot ROM, please contact the Cisco TAC.
Problems Fixed in Token Ring Software Release 3.2(3)
The following is a list of problems that have been resolved in this release of the Token Ring software.
Known Problems in Token Ring Software Release 3.2(3)
This section lists the known problems for Catalyst 5000 series Token Ring software release 3.2(3).
Image Download Requires at Least One Enabled Port
Problem Identifier: CSCdj65766
Problem Description: Downloading an image to the Token Ring module via TFTP fails unless one port of the Token Ring module is enabled.
Recommended Action: Do not disable ports on the Token Ring module before starting a module download.
Auto Speed Detection Does Not Work at 4-Mbps On Fiber Token Ring Module
Problem Identifier: CSCdj87669
Problem Description: The automatic speed detection feature does not work at 4-Mbps on the fiber Token Ring module.
Recommended Action: If using 4-Mbps on the fiber Token Ring module, manually set the ring speed in the port configuration using the set port speed command.
Fiber Module Port Can Take Up to 20 Seconds to Recognize a Link is Down
Problem Identifier: CSCdj90107
Problem Description: A Catalyst 5000 series fiber Token Ring module port can take up to 20 seconds to recognize that a link between devices is down.
Recommended Action: None.
The "show counters" Command Displays Zero for Token Ring Explorer Counters
Problem Identifier: CSCdk19788
Problem Description: The show counters command and the associated SNMP queries for the following counters always return zero:
dot1dSrPortApeInFrames
dot1dSrPortApeOutFrames
dot1dSrPortSteInFrames
dot1dSrPortSteOutFramesRecommended Action: None.
BPDU Broadcast Storm May Occur on SPAN Port Upon Insertion Into the Ring
Problem Identifier: CSCdk30261
Problem Description: When configuring a Token Ring SPAN port to monitor another Token Ring port, a small broadcast storm of Cisco Spanning-Tree Protocol BPDUs might occur on the SPAN port immediately after the port inserts into the ring.
Recommended Action: None.
Fiber Module Port May Hang When Trying to Insert Into RIRO Port of a Hub
Problem Identifier: CSCdk30265
Problem Description: If the port transmission mode of a port on the fiber Token Ring module is set to auto, connecting via a Ring In/Ring Out (RIRO) port on a hub may cause the port to hang.
Recommended Action: Use the set tokenring portmode command to configure the port for RIRO before connecting to the hub. If the failure to insert has already caused the fiber Token Ring module to hang, disabling and enabling the port using the set port disable and set port enable commands will bring the port back online.
Availability of Catalyst 5000 Software Upgrades on CCO
When changes are made to the Catalyst 5000 software, the new image is posted to CCO. You can then obtain a copy of the image and download it to your switch.
Obtaining Service and Support
For service and support for a product purchased from a reseller, contact the reseller. Resellers offer a wide variety of Cisco service and support programs, which are described in the section "Service and Support" in the information packet that shipped with your product.
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For service and support for a product purchased directly from Cisco, use CCO.
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You can access CCO in the following ways:
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For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
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Ordering Documentation
Documentation for Cisco products is available in three forms: in a CD-ROM package, printed books, and on the World Wide Web. You have the option of subscribing to the CD ROM package through an update service. Or you can order printed documentation at an additional cost. Refer to the information packet included with the router for detailed ordering information. You can also access Cisco documentation on the World Wide Web URL http://www.cisco.com.
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