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Cisco Bug: CSCuj48727 - VSAN 1 goes into isolation, when a new N5K is connected to an MDS

Last Modified

Jun 27, 2016

Products (6)

  • Cisco Nexus 5000 Series Switches
  • Cisco Nexus 5548P Switch
  • Cisco Nexus 5596UP Switch
  • Cisco Nexus 5020 Switch
  • Cisco Nexus 5548UP Switch
  • Cisco Nexus 5010 Switch

Known Affected Releases


Description (partial)

The following error message is seen in the MDS logs:

%PORT-5-IF_TRUNK_DOWN: %$VSAN 1%$ Interface port-channel xxx, vsan 1 is down (Isolation due to domain manager other side not responding)

VSAN 1 is isolated on the MDS on the port-channel, however, VSAN 1 is trunking on the N5K's san-port channel.
Output DISCARDS on the N5K's san-port-channel interface are incrementing at a slow but steady rate.
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