From the docs it looks like topics can be used across servers, but the XSD seems to prevent this.

The topic quickstart has a config like:

<server name="foo">

     <machine-ref id="foo1"/>

     <machine-ref id="foo2"/>

     <service id="topica" type="topic"/>

</server>

which works fine and both instances of foo receive the info.  But shouldnt I be able to subscribe to the topic as another server as well? ie.

<server name="foo">

     <machine-ref id="foo1"/>

     <machine-ref id="foo2"/>

     <service id="topica" type="topic"/>

</server>

<server name="bar">

     <machine-ref id="bar1"/>

     <machine-ref id="bar2"/>

     <service id="topica" type="topic"/>

</server>

at the moment this is disallowed as only one server can advertise a service with a given name.