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JMS Topic: Configuration: Multicast
Configuration Options Related Tasks Related Topics
Multicasting enables the delivery of messages to a select group of hosts that subsequently forward the messages to topic subscribers. Use this page define the multicast settings for this JMS topic.
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.You configure topics explicitly or by configuring a JMS template to define and manage multiple topics with similar attribute settings.
Configuration Options
Name Description Multicast Address The IP address that this topic uses to transmit messages to multicast consumers.
MBean Attribute (Does not apply to application modules) :
MulticastParamsBean.MulticastAddressChanges take effect after you redeploy the module or restart the server.
Multicast TTL The number of routers that a message can traverse enroute to a consumer. A value of 1 limits the message to one subnet (which prevents it from traversing any routers).
This value is independent of the JMSExpirationTime value.
MBean Attribute (Does not apply to application modules) :
MulticastParamsBean.MulticastTimeToLiveMinimum value:
0Maximum value:
255Changes take effect after you redeploy the module or restart the server.
Multicast Port The IP port that this topic uses to transmit messages to multicast consumers.
MBean Attribute (Does not apply to application modules) :
MulticastParamsBean.MulticastPortMinimum value:
1Maximum value:
65535Changes take effect after you redeploy the module or restart the server.
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