Cisco Catalyst 3000 Series Switches

Revised October 14, 1997

Products Affected

• Catalyst 5x00 Supervisor Software Version 2.4(2)

Problem Symptoms

Under certain conditions if a user executes the command:

set vlan <vlan_num> <mod/port>

from a Telnet Session, and if the vlan_num does not exist, the user may cause the switch to reset with the following exception:

Console> show log

  [snip]

  Exceptions: 3
  Last Exception occurred on [data / time]...
  Software version = 2.4(2)
  Error Msg:
  The end of stack #22 (telnet22
  PID = 22 telnet22

The problem is seen only in Catalyst 5000 Software Release 2.4(2)

Workaround/Solution

Cisco has removed the maintenance release 2.4(2) from CCO.

Customers that experience this problem can exercise any of the following workarounds:

• Issue the command via the console.

• Perform the operation via SNMP.

• Create the VLAN first and then make port-to-VLAN association:

Console> set vlan <vlan_num>
  Console> set vlan <vlan_num> <mod/port>

DDTS

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

• Open a service request on Cisco.com
• By email
• By telephone

Receive Email Notification For New Field Notices

Product Alert Tool - Set up a profile to receive email updates about reliability, safety, network security, and end-of-sale issues for the Cisco products you specify.