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Cisco Bug: CSCup73556 - Alishan: VOQ td not getting disabled on ISSU to 6.2.9 image

Last Modified

Feb 04, 2017

Products (1)

  • Cisco MDS 9000 Series Multilayer Switches

Known Affected Releases

6.2(9)S17

Description (partial) 

Symptom:
VOQ tail drops observed in Alishan during congestion in 6.2.9 image

Conditions:
This is observed only during congestion and only when ISSU is done from previous versions. The issue is not consistent enough and is not seen always while coming from 6.2.5 to 6.2.9 image. But, when issu is done from 6.2.7 to 6.2.9 the issue is always seen since this is a known bug in 6.2.7.
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