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A VLAN might disappear due to a duplex mismatch, which causes connectivity issues

Core issue

When multiple ports are configured to have duplex mismatch with the peer, and under heavy broadcast or multicast traffic, the VLANs disappear after a period of time.

This problem is not seen if the duplex mismatch condition is corrected after 15-20 minutes.

This is a mis-configuration issue, not a software issue.


There is no workaround. Correct the duplex mis-match problem.

This issue is documented in Cisco bug ID CSCed08716.

Version history
Revision #:
1 of 1
Last update:
‎06-22-2009 04:12 PM
Updated by:
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