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Cisco Bug: CSCvh70146 - [BGP]eBGP unable to form neighbor across EX leaf with ttl = 1

Last Modified

Aug 13, 2019

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

12.3(1i) 13.1(1i)

Description (partial)

Symptom:
Two routers are not able to form eBGP neighborship with ttl=1. The routers hit different sup-TCAM rules and become flooded in the EPG.

Conditions:
This issue occurs with -EX leaf switches and when the routers must establish an eBGP neighbor across the fabric.
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