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Cisco Bug: CSCvv60811 - c3k make duplicate packet if enable SPAN under Stackwise virtual and Stack group

Last Modified

Sep 04, 2020

Products (1)

  • Cisco Catalyst 3850 Series Switches

Known Affected Releases

16.12.3

Description (partial)

Symptom:
Two c3k built a Stackwise virtual and plug into a stack cable either, will duplicated packet if enable SPAN(src g1/0/1).

sw1----g1/0/1(stackwise-virtual+stack-group)-----sw2

ping from sw1 to sw2 with 5 packets, sw2 will received 6-7 packets, have 1-2 packets was duplicated.

Conditions:
running a stackwise virtual and plugged stack group cable, enable SPAN
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