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Cisco Bug: CSCvs90207 - On cEDGE all the BFD session flap if there is a control connection flap to vmanage

Last Modified

Oct 24, 2020

Products (2)

  • Cisco SD-WAN
  • Cisco XE SD-WAN Routers

Known Affected Releases

16.12.2r

Description (partial)

Symptom:
The poke-hole packets to the Vbond are not sent out. As a result, the NAT state is not maintained.

When the device needs to communicate with the Vbond again, a new NAT mapping may be created. The new
public IP address would result in a churn of the data plane (e.g., BFD).

Conditions:
When the vmanage control connection flaps, cEdge will talk to vbond first to get the ip address of vmanage. During this process there is a change in the public port (NAT), which would result in flap of BFD sessions.
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Bug Details Include

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