Two clusters on one machine

I'm trying to get two clusters different versions of Coherence running on the same box. They have different cluster names and different multicast listener addresses but when I start the second cluster I get the following error:
1117 [Logger@748080913 3.5.3/465p7] ERROR Coherence - 2011-03-16 17:52:28.094/1.431 Oracle Coherence GE 3.5.3/465p7 <Error> (thread=Cluster, member=n/a): This member could not join the cluster because of an incompatibility between the cluster protocol used by this member and the one being used by the rest of the cluster. This is most likely caused by a Coherence version mismatch, or by mismatched protocol filters (e.g. compression, or encryption). Rejected by Member(Id=1, Timestamp=2011-02-16 20:52:32.677, Address=169.35.10.56:8088, MachineId=32824, Location=machine:nyl31a-2204-eth4,process:18284, Role=CsDatacacheWebService).
1117 [Logger@748080913 3.5.3/465p7] DEBUG Coherence - 2011-03-16 17:52:28.095/1.432 Oracle Coherence GE 3.5.3/465p7 <D5> (thread=Cluster, member=n/a): Service Cluster left the cluster
1121 [main] ERROR com.cs.configservice.WebService - java.lang.RuntimeException: Failed to start Service "Cluster" (ServiceState=SERVICE_STOPPED, STATE_JOINING)
The first cluster (v3.6.1) has this in its override:
<cluster-config>
<member-identity>
<cluster-name system-property="tangosol.coherence.cluster">DATA_CACHE</cluster-name>
</member-identity>
<multicast-listener>
<time-to-live system-property="tangosol.coherence.ttl">1</time-to-live>
<address system-property="tangosol.coherence.clusteraddress">239.193.112.8</address>
<port system-property="tangosol.coherence.clusterport">35000</port>
</multicast-listener>
</cluster-config>
The second (v3.5.3) has this:
<cluster-config>
     <multicast-listener>
          <time-to-live system-property="tangosol.coherence.ttl">1</time-to-live>
          <address system-property="tangosol.coherence.clusteraddress">239.193.112.12</address>
          <port system-property="tangosol.coherence.clusterport">35000</port>
     </multicast-listener>
     <member-identity>
          <cluster-name system-property="tangosol.coherence.cluster">CONFIG_SERVICE</cluster-name>
     </member-identity>
</cluster-config>
I can't figure why they aren't co-existing.
Edited by: MattS on Mar 16, 2011 11:26 AM - added version info

Hi Matt,
I think, you may need to use a different multicast port, too.
Also, verify that you are not overriding the different settings with the same Java property override value.
Best regards,
Robert

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