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Cisco Bug: CSCut09985 - VSL link stuck in W state, when OIR is done on the SFP of the VSL link

Last Modified

Jul 20, 2017

Products (1)

  • Cisco Catalyst 4000 Series Switches

Known Affected Releases

15.2(3.1.91)E1

Description (partial)

Symptom:
VSL drops packets on Cat4500 VSS pairs.

Conditions:
1. VSL link flaps.

2. VSL links stuck in W state

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
10     Po10(SU)         -        Te1/1/17(P) Te1/2/1(w)
20     Po20(SU)         -        Te2/1/32(P) Te2/2/1(w)
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