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Cisco Bug: CSCvu93826 - Flexlink+ does not block VLANs

Last Modified

Sep 01, 2020

Products (1)

  • Cisco Catalyst 3650 Series Switches

Known Affected Releases

16.12.3

Description (partial)

Symptom:
On 16.12.3, Flexlink+ (REP) does not block new VLANs as expected on the REP alternate port when they are created. This can lead to L2 loops. Looped traffic has only been observed for multicast streams - unicast and broadcast flows are not looped.

Conditions:
Switch running 16.12.X code with support for Flexlink+
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  • Status
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