[jboss-user] [Clustering/JBoss] - Can somebody tell me the difference between followed UDP con

[liujw2001]

Hello:
  This time I want to config web cluster between Windows XP and Linux.
I found there are two place to configure the multicast.
One is in file: D:\jboss-4.0.4.GA\server\all\deploy\tc5-cluster.sar\META-INF\jboss-service.xml, which show as follows:
   <UDP mcast_addr="${jboss.partition.udpGroup:230.1.2.7}" 
  |                      mcast_port="45577"
  |                      ucast_recv_buf_size="20000000"
  |                      ucast_send_buf_size="640000"
  |                      mcast_recv_buf_size="25000000" 
  |                      mcast_send_buf_size="640000" 
  |                      loopback="true" 
  |                      max_bundle_size="64000" 
  |                      max_bundle_timeout="30" 
  |                      use_incoming_packet_handler="true" 
  |                      use_outgoing_packet_handler="true" 
  |                      ip_ttl="5" 
  |                      down_thread="false" up_thread="false"
  |                      enable_bundling="true"/>
The other is in file: D:\jboss-4.0.4.GA\server\all\deploy\cluster-service.xml:
    <UDP mcast_addr="${jboss.partition.udpGroup:228.1.2.3}"   
  |                mcast_port="45566"
  |                ip_ttl="8" ip_mcast="true"
  |                mcast_send_buf_size="800000" mcast_recv_buf_size="150000"
  |                ucast_send_buf_size="800000" ucast_recv_buf_size="150000"
  |                loopback="true"/>
  | 

When I grab the IP package, I found both of them sent package. So I want to ask the difference between them. Which one is useful for multicast configure?

Thank you!

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