L2TPv3 configuration with resilience

[matthewthw]

Hi all

I am configuring L2TPv3 on the 2 x point to point connection with routers connected as below:

  S ----- (L2TPv3 xconnect)  R1----------------R3(L2TPv3 xconnect)--- S

 W ----- (L2TPv3 xconnect)   R2----------------R4(L2TPv3 xconnect)---W

Can I configure resilience setup between R1 and R2 for xconnect interface failover from R1 to R2 if the is failure between R1 and R3?

And how can I control the active traffic can go though xconnect over R1<->R3 connection and back up using xconnect over R2<-> R4?

Thanks.

Matthew

[Giuseppe Larosa]

Hello @matthewthw ,

L2TPv3 provides a point to point L2 transport service over a routed IP internetwork.

EoMPLS pseudowire can have a backup pseudowire but I don't think L2TPv3 support this feature.

You can tune STP parameters on the links if the CE devices are LAN switches so that the primary link is preferred when available using for example spanning-tree cost 100 in interface mode on the secondary link both ends.

Hope to help

Giuseppe