Trying to create a Cluster set-up among the realm servers.
Created 3 realm servers namely nirvana2(runs on port 19000, nirvana33( runs on port 39000 ),nirvana44 (runs on port 49000) in my local. In Enterprise Manager added details of nirvana2 realm but when trying to add nirvana33 and nirvana44 getting below error for nirvana33 and nirvana44
Unable to establish communications with the RealmServer:
nsp://localhost:39000
Anil,
what you are describing should work fine - and I use this on my local laptop all the time.
How did you create the additional realms? Did you use ninstancemanager?
If so, what precise inputs did you provide?
Are you sure the additional instances are running?