Cisco OTV with two resilient links. Two join interfaces?

[graham smart]

Hello,

I have two ASR's connected via two diverse links. Each on its own respective /30

              /30

ASR1=======ASR2

             /30

I have OTV working across one of the /30's.

How can I have OTV use the second link but have it as a backup path ( as its less reliable and slower )

Any thoughts?

Thanks

L

[Vasilii Mikhailovskii]

Hello.

If you form port-channel of these two links, you would be able to run OTV with port-channel as a join interface (running XE3.10+).

Using loopback as join-interface is not supported yet (even in release 3.15).

[Bilal Nawaz]

Form a port-channel as Vasilii said BUT since you want to use it as backup you need to use the fast switchover supported on ASR, you can try it. Link with lowest priority wins and will always be active when available.

interface Po1

description OTV JOIN INTERFACE

lacp fast-switchover

lacp max-bundle 1

!

interface gi0/0/0

description PRIMARY OTV JOIN

channel-group 1 mode active

lacp port-priority 10

!

interface gi0/0/1

description SECONDARY OTV JOIN

channel-group 1 mode active

lacp port-priority 100

!

interface overlay 1

otv join-interface port-channel 1

hope this helps

Bilal