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Cisco Bug: CSCvi06017 - Asymmetric vlan mapping with MST not working on starfleet

Last Modified

May 31, 2019

Products (1)

  • Cisco Catalyst 9500 Series Switches

Known Affected Releases

16.12.1 16.9.1

Description (partial)

Symptom:
In case of MST, if a trunk port is configured to allow only some vlans but not all of an MST instance, we see that ingress flooding happens on all the vlans in that MST instance instead of blocking non-allowed vlans.

Conditions:
MST with trunk allowed vlans configured to allow some but not all vlans of the MST instance.
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