[j-nsp] Too much packet loss during switchover on MPLS network

[Gökhan Gümüş]

Dear all,

I have a problem with one of our customer.

Customer has been deployed with VPLS. We are using primary path and
secondary path ( standby ) to handle VPLS traffic between sites.

Within a maintenance window, we made a failover test. Customer was pinging
remote site continuosly and we would like to test how many packets are being
lost during switchover. When i triggered transition from primary to
secondary, customer lost 41 packets during ping test. Then i implemented
node-link-protection and link protection in case they help but customer
experienced same amount of packet loss during transition.

My question, is it a normal behaviour? From my perspective it is not a
normal behaviour.

Has anybody such an experince?

Thanks and regards,

Gokhan