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Cisco Bug: CSCvu08077 - TTL value breaks BFD process on ACI enabled leaf in 4.2(3l)

Last Modified

Jun 02, 2020

Products (1)

  • Cisco Application Policy Infrastructure Controller (APIC)

Known Affected Releases


Description (partial)

BFD process will not start on border leaf after modifying ttl value in ebgp configuration inside the l3out interface profile.  see summary above and the following internal post:

It seems that if you touch the ttl value the bfd process/session won't start.  In my case the customer increased it, then decreased it to the supported value, but the process still would not start.

if the TTL value gets modified in any way shape or form the bfd process seems to get blocked.
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