Edges with PPPoE interfaces do not renegotiate links after they have been brought down and then connectivity is restored

Products

• VMware VeloCloud SD-WAN Edge Appliance

Issue/Introduction

Edges on version 5.2.2 due to a known issue are failing to rebuild tunnels to the Gateway after the link goes down and is then later restored and capable of passing traffic.

Environment

SD-WAN Edge 5.2.2

Cause

Edge version 5.2.2 has a defect where lcp_echo_fail and lcp_echo_interval are not set in the newer version of the PPPoE process

Resolution

A workaround for this issue would be to physically remove the RJ45 cable and then reconnect it to trigger tunnel rebuilds on a PPPoE link. A permanent fix for this issue is included on GA version 5.2.3.3 and later versions.