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Cisco Bug: CSCuq02796 - Catalyst 4500-X VSS failure after adding members to port-channel

Last Modified

Sep 14, 2019

Products (1)

  • Cisco Catalyst 4000 Series Switches

Known Affected Releases


Description (partial)

When creating a Cisco Catalyst 4500-X VSS port channel using member interfaces from both switches, the peer switch may experience an unexpected reload.

This issue has been seen on a Cisco Catalyst 4500-X VSS running 3.5.3.

4500_VSS(config)#interface range T1/1/25 , T2/1/25
4500_VSS(config-if-range)# channel-protocol lacp
4500_VSS(config-if-range)# channel-group 50 mode active
Creating a port-channel interface Port-channel 50

Jun 24: %C4K_REDUNDANCY-3-SIMPLEX_MODE: The peer Supervisor has been lost
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