ACE - Port-channel High Availability

[Oscar Cardiel]

We have configured two ACEs with high Availability. ACEs link with our cores, switches cat6500, through a port-channel, ACE’s ports G1/1 and G1/2. High availability works fine if some vlan down but it doesn’t work if an interface down, only if both interfaces get down because then, all vlans of the channel port get down two.

If possible get an interface port-channel high availability?

Thanks for your help in advance.

[Surya ARBY]

Are your Cat6500 configured with VSS ? otherwise you can't use a portchannel between two switches.

[Oscar Cardiel]

Thanks for your answer. I have two Cat6500, no VSS possibility. I have two ACEs so each one has configured a port-channel with one Cat6500 (two ports). It works fine. Any problem with that. My issue is when one port-channel of both port is down, failover doesn’t works then, only if both ports are down or vlans are down. I think high availability is only possible in vlan interfaces, not in physical interfaces.

Regards my friend.

[Surya ARBY]

As long as the port channel is up, the ACE will not failover.

[Oscar Cardiel]

yes, I agree with you. It will be nice if failover works when one of both physical interfaces get down. Actually I have a standby ACE with more bandwidth than active one if one interface of port-channel get down.

[Marko Leopold]

I was thinking about link state tracking on your switch, but after reading about it, I don't know if you can use it for the physical ports inside a port-channel. But maybe you can try this out too.

[Oscar Cardiel]

Hi Marko,

It sounds good… I tried it. I got switch port-channel down but not ACE port-channel then, Ace failover doesn’t work. It was curious because ACE had his own port-channel up while switch port-channel was down.

Thank you very much Marko to think about it.