The only thing that I would change is to make both clusters Hubs in the ILS configuration. You can have multiple clusters defined as Hubs and that is actually the recommended way by Cisco if you don’t have more than a set number of clusters. The difference is the time it takes to propagate information in the ILS network. With a system set as Spoke it takes a little longer to propagate information.
For reference we have five clusters in our system landscape set as Hub in the ILS network.
No I don’t see any issues with your described setup, but at the same time it would be no issues with what I suggested either, in fact your setup would in essence be the same as you only have two clusters so hub or spoke should not really matter for you.
About propagation of information, I think that you’d want to be sending SIP uri information between the clusters to facilitate SIP uri calls between the two. So it would not just be home cluster discovery that is at part for the speed consideration. But as stated earlier with two clusters speed would be the same between what you and I suggested.
U mean the UDS discovery? That should AFAIK work even if the Pub is down. How have you defined your SRV records for UDS?
