Port-channel between Border - Edge (Fabric link)

[gracjan.rosinski]

Hello

As I am involved in testing SDA solution, I am wonder if there is any possibility to implement 2 links bounded in port-channel between Border and Edge as a Fabric link (route-port with is-is)

Of course I would prefer automated solution from DNA Center

Thanks in advance for all feedbacks

[balaji.bandi]

what is the use case, why fabric edge switch need to connect to border, how is your deployment ?

[gracjan.rosinski]

It is very simple deployment - 2 borders C9500 and Edge C9300. From edge we have 2 links - one is going to B1 and second is going to B2

As recently we added second C9300 as stack member to Edge we wonder if there is possibility to have redundant link from 2nd switch in stack to each border. I attached picture to visualize it

We wonder if this is possible what we want to achieve from DNAC side. DNA Center version in our environment is 2.2.3.4

 

[balaji.bandi]

if the Top one acting Fabric in box, this is feasible i guess here, since you do not have any intermediate nodes.

example :

[markus.forrer · Accepted solution]

If you want to use LAN Automation and thinking forward, no it's not possible.

If you do the underlay by hand, it should be possible, but you will loose the automation part of the underlay.

You could add the additional links as normal Fabric Links (routed) and would archive the same as with the port-channel.

By default all links are ECMP and traffic would be balanced of the four links.