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Cisco Bug: CSCul44262 - Ping over fabric-control-svi b/w N6K leaf and N7K RR spine may not work

Last Modified

Feb 15, 2018

Products (8)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7700 6-Slot Switch
  • Cisco Nexus 7700 18-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch
  • Cisco Nexus 7700 10-Slot Switch

Known Affected Releases

6.2(6)

Description (partial)

Some times Nexus 6000 DFA leaf may not establish the communication with Nexus 7000 BGP route-reflector node.

Symptom:
Any ping can not be executed successfully between Nexus 6000 DFA leaf and Nexus 7000 DFA Route-Reflector Spine nodes. The BGP session will not be established and the Nexus 6000 DFA node will be isolated from the network if it does not have redundant BGP RR session.

Conditions:
A reload on either Nexus 6000 or  Nexus 7000 may cause that to happen, or interface flaps over fabric control-segment may also cause it.
The Nexus 7000 switch must be running 6.2.6 code for this to happen where this BGP RR spine feature was first introduced.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
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