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Cisco Bug: CSCup03795 - SPAN breaks on ACTIVE port after switchover in VSS setup

Last Modified

Sep 01, 2020

Products (1)

  • Cisco Catalyst 4000 Series Switches

Known Affected Releases

3.5(2) 3.7(2)

Description (partial)

VSS SPAN might not not work for remote source ports.

We suspect this may occur when:
1) user monitor sessions were created in other than natural ascending order (e.g. first 'monitor session 2' created and then 'monitor session 1')
2) VSS underwent SSO switchover
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