In this scenario the UIM environment has two-tiers. The primary hub is the Tunnel Server and all remote hubs connect to the primary hub as Tunnel Clients.
We need to onboard new Hubs which require a connection over Tunnels. With our current architecture GET/ATTACH queues are configured between our Tunnel Server and Tunnel Clients. Each queue we create on the Primary Hub creates a new subscriber.
The primary hub is a Windows Server and we are almost at the 64-subscriber limit. How can we proceed?