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Uniform Distributed Topic: Configuration: Multicast
Configuration Options Related Tasks Related Topics
Use this page to define the multicast settings for this distributed topic. Multicasting enables message delivery to many subscribers using a single network message.
IP multicast is a simple broadcast technology that enables multiple applications to "subscribe" to a given IP address and port number and listen for messages. A multicast address is an IP address in the range from
224.0.0.0to239.255.255.255.Configuration Options
Name Description Multicast Address The multicast address used by this topic.
This address is used to transmit messages to multicast consumers.
MBean Attribute:
JMSTopicMBean.MulticastAddressChanges take effect after you redeploy the module or restart the server.
Multicast TTL The number of network hops that a multicast message is allowed to travel.
This is the Time-To-Live value used for multicasting, which specifies the number of routers that the message can traverse en route to the consumers. A value of 1 indicates that the message will not traverse any routers and is limited to one subnet.
This value is independent of the JMSExpirationTime value.
MBean Attribute:
JMSTopicMBean.MulticastTTLMinimum value:
0Maximum value:
255Changes take effect after you redeploy the module or restart the server.
Multicast Port The multicast port for this topic.
This port is used to transmit messages to multicast consumers.
MBean Attribute:
JMSTopicMBean.MulticastPortMinimum value:
1Maximum value:
65535Changes take effect after you redeploy the module or restart the server.
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