[c-nsp] Inter-op with Juniper EX4200 Using LACP Link Protection

Michael Loftis mloftis at wgops.com
Sat Dec 20 16:06:56 EST 2014

On Saturday, December 20, 2014, Devon True <devon at noved.org> wrote:

> Hi Cisco-NSP,
> We have a pair of Cisco Nexus 7000s switches connecting into one Juniper
> EX4200 switch using a vPC port-channel. On the Juniper side they are using
> LACP Link Protection (
> http://www.juniper.net/techpubs/en_US/junos13.3/topics/task/configuration/lacp-link-protection-cli.html
> <
> http://www.juniper.net/techpubs/en_US/junos13.3/topics/task/configuration/lacp-link-protection-cli.html>).
> In the initial turn-up, it was determined that the Cisco side was sending
> packets across either interface, but the Juniper side would drop any
> packets sent to the “protected” port on their side.
> Has anyone successfully configured the same setup on the Cisco side? We
> opened a TAC case but they said it was not possible.

The LACP and link protection on EX are not mutual requirements, tell them
to delete the link-protection  statement. If they really do want just
failover then the equivalent cisco side is bundle maximum-active along with

> Thanks!
>> Devon
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