Administration Console Online Help
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Administration Console Online Help
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Configuration Options Related Tasks Related Topics
This page allows you to define the multicast settings for this cluster. 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 224.0.0.0 to 239.255.255.255.
| Name | Description |
|---|---|
| Multicast Address |
The multicast address used by cluster members to communicate with each other. The valid range is from from 224.0.0.0 to 239.255.255.255. The default value used by WebLogic Server is 239.192.0.0. You should avoid using multicast addresses in the range x.0.0.1 This address should be unique to this cluster and should not be shared by other applications. MBean Attribute: Changes take effect after you redeploy the module or restart the server. |
| Multicast Port |
The multicast port (between 1 and 65535) used by cluster members to communicate with each other. Defines the multicast port used by cluster members to communicate with each other. MBean Attribute: Minimum value: Maximum value: Changes take effect after you redeploy the module or restart the server. |
| Multicast Send Delay |
The amount of time (between 0 and 100 milliseconds) to delay sending message fragments over multicast in order to avoid OS-level buffer overflow. Defines the number of milliseconds to delay sending message fragments over multicast in order to avoid OS-level buffer overflow. MBean Attribute: Minimum value: Maximum value: Changes take effect after you redeploy the module or restart the server. |
| Multicast TTL |
The number of network hops (between 1 and 255) that a cluster multicast message is allowed to travel. Defines the number of network hops that a cluster multicast message is allowed to travel. 1 restricts the cluster to one subnet. MBean Attribute: Minimum value: Maximum value: Changes take effect after you redeploy the module or restart the server. |
| Multicast Buffer Size |
The multicast socket send/receive buffer size (at least 64 kilobytes). Returns the multicast socket send/receive buffer size. MBean Attribute: Minimum value: Changes take effect after you redeploy the module or restart the server. |
| Idle Periods Until Timeout |
Maximum number of periods that a cluster member will wait before timing out a member of a cluster. Maximum number of periods that a cluster member will wait before timing out a member of a cluster. MBean Attribute: Minimum value: Changes take effect after you redeploy the module or restart the server. |
| Enable Multicast Data Encryption |
Servers in a cluster send multicast messages. A multicast message consists of header information followed by data. Data will be encrypted by enabling multicast data encryption. MBean Attribute: Changes take effect after you redeploy the module or restart the server. |
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