OTV Setup with multiple Layer 3 Point to Point Links and one Nexus 7000 at each site
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06-09-2015 07:00 AM - edited 03-05-2019 01:38 AM
Hi,
I have a network setup with one Nexus 7000 at the Primary and the other at the DR.
I have setup otv over a layer 3 point-to-point link between the two sites. Recently a second point-to-point link was provisioned be a different service provider.
How do I setup the OTV so that I can utilize both links to have one link as the active and the second as standby with failover.
Thanks.
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LAN Switching

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06-09-2015 07:36 AM
Is your join interface the point-to-point link? Please provide more information...
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06-11-2015 02:19 AM
I have two point to point links between the two Sites, I would like to use both interfaces at each site as join interfaces so that the DCI can failover to the second link in case the first p2p link is down.

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06-11-2015 09:08 AM
Form a port-channel. Link with lowest priority wins and will always be active when available. You must specify that only 1 link in the bundle can be used. I haven't tried this config on N7K's so syntax might be a bit different, but this is generally how it would be achieved.
interface Po1
lacp fast-switchover
lacp max-bundle 1
!
interface Ex/x
description PRIMARY
channel-group 1 mode active
lacp port-priority 10
!
interface Ex/x
description SECONDARY
channel-group 1 mode active
lacp port-priority 100
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06-29-2015 07:34 AM
Thanks,
I am still facing a challenge as the LACP is not working across the Layer 3 Service Provider links

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06-30-2015 04:39 AM
can you explain a bit more please? what do you see when you do a show port-channel summary?
