[j-nsp] EVPN

[Clarke Morledge]

Resurrecting an older thread, Amos at oasis-tech had this to say about his 
EVPN testing:

"On single active multi homing, when the CE is a L2 switch. When failing 
the active link the switch will learn the remote destination MAC through 
the standby link very quickly. However, when the active link recovers and 
becomes active once again, the CE MAC table does not flush and the CE keep 
sending traffic to backup port that is now blocking. Obviously this is 
only applicable to uni directional traffic scenarios. On bi-directional 
scenarios MAC learning works like a charm."

I am running up against this in our lab testing. It would be nice to find 
some way have to EVPN trigger a topology change via MSTP to cause the CE 
to flush its MAC table upon active link recovery.

Getting two different L2 topologies; e.g. EVPN and MSTP, within the same 
L2 domain to sync up is a real pain.

Anyone have any solutions to this problem?

Clarke Morledge
College of William and Mary
Information Technology - Network Engineering
Jones Hall (Room 18)
Williamsburg VA 23187