Hi Kumar,
Broker will do.
You will have to configure the JNDI-/JMS-Connectivity on both IS so that both of them can access the shared queues on the broker.
The bindings-files do not need to be identical (but this will ease the configuration), but they both need to contain the shared queues.
Are the IS1 and IS2 on the same machine?
If yes, you can place the bindings-file in a shared directory outside of the installations.
For Broker I currently prefer JMSNaming (which will only work with broker jms). This is stored in ther Broker-Storage and can be accessed from both ISes.
If there are further issues, please share some more details how you have the JNDI-/JMS-Connectivity currently configured.
Regards,
Holger
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