[openib-general] Problem is routing CM REQ

[Sean Hefty]

> The hard part is the global distribution of this information.

The best idea I can come up with for locating remote SAs is to have the SAs 
assign themselves a specific Unicast Global GID Assigned Value.  So, each SA 
gives themselves a GID similar to: 64-bit subnet prefix :: 1.  Hosts on remote 
subnets can then direct requests to the SAs on the remote subnet.

SA failover would need to take this GID with them...

- Sean