WebLogic Server Command Reference
The MulticastTest
utility helps you debug multicast problems when configuring a WebLogic Cluster. The utility sends out multicast packets and returns information about how effectively multicast is working on your network. Specifically, MulticastTest
displays the following types of information via standard output:
To use MulticastTest
, start one copy of the utility on each node on which you want to test multicast traffic.
Warning: Do NOT run the MulticastTest
utility by specifying the same multicast address (the -a
parameter) as that of a currently running WebLogic Cluster. The utility is intended to verify that multicast is functioning properly before starting your clustered WebLogic Servers.
For information about setting up multicast, see the configuration documentation for the operating system/hardware of the WebLogic Server host machine. For more information about configuring a cluster, see Using WebLogic Server Clusters.
$ java utils.MulticastTest -n
name
-aaddress
[-pportnumber
]
[-ttimeout
] [-ssend
] [-l timetolive]
$ java utils.MulticastTest -N server100 -A 237.155.155.1
Set up to send and receive on Multicast on Address 237.155.155.1 on port 7001
Will send a sequenced message under the name server100 every 2 seconds.
Received message 506 from server100
Received message 533 from server200
I (server100) sent message num 507
Received message 507 from server100
Received message 534 from server200
I (server100) sent message num 508
Received message 508 from server100
Received message 535 from server200
I (server100) sent message num 509
Received message 509 from server100
Received message 536 from server200
I (server100) sent message num 510
Received message 510 from server100
Received message 537 from server200
I (server100) sent message num 511
Received message 511 from server100
Received message 538 from server200
I (server100) sent message num 512
Received message 512 from server100
Received message 539 from server200
I (server100) sent message num 513
Received message 513 from server100