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Cisco Bug: CSCut45619 - Changes to ESXi networking causes VIF flaps for servers with M73KR-Q

Last Modified

Jan 31, 2017

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

2.2(3b)B

Description (partial)

Symptom:
When removing a vmnic from the vswitch within vCenter, we see that the host goes unresponsive in vCenter, and then network connectivity drops and VIF down messages begin flapping within UCSM.
A restart of the host or a reassociation of the profile resolves the connectivity problem.

Conditions:
B200 M3 with v2 Processors
ESXi 5.5 U2
UCS version 2.2(3b)
M73KR-Q adapter
Brocade 5300 switches to IBM XIV sotrage arrays
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