= Update the jgroups Subsystem

The JBoss Server Migration Tool applies the following protocol stacks to *jgroups* subsystem configurations:

* Replaces protocol `FRAG2` with protocol `FRAG3`.

Upon successful migration of a *jgroups* subsystem configuration, you should see the following message in the console:

[source,options="nowrap"]
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 INFO  Subsystem jgroups updated.
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