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Cisco Bug: CSCum43584 - 6500 Ingress VLAN SPAN stops working

Last Modified

Jul 12, 2021

Products (1)

  • Cisco Catalyst 6000 Series Switches

Known Affected Releases


Description (partial)

Ingress VLAN SPAN stops replicating traffic to destination after making changes to the monitoring session

This has consistently been reproduced by the following sequence of events:

1) A change in the L2 forwarding state for a VLAN (link flap or STP topology change)
2) The affected VLAN is added and removed from an existing monitoring session

As a result, the existing monitoring session stops replicating ingress traffic.
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