Collab Edge MRA-B2B-Jabber Guest Question

[Brian Carscadden]

Assuming a client wants to deploy MRA and Jabber Guest Expressway C/E Pairs where does/should B2B calling be handled, on the MRA pair, or Jabber Guest pair??

The current Collaboration Preferred Architecture guide states MRA (Jabber and Endpoint Registions) should be separate for B2B (snippet below, or see page 27 here: http://www.cisco.com/c/dam/en/us/td/docs/solutions/PA/enterprise/collabpa.pdf). Is this correct?  And if so wouldn't that mean we only need traversal licenses on the B2B/Jabber Guest pair (since MRA itself doesn't need traversal licenses)??

Thanks in advance,

Brian

[Tim Cappel]

Hey Brian,

I guess their point is based on workload.  With the idea that the two VMs supporting the registration traffic and voice video from the outside traffic would be a lot.  A lot of configurations are using ExpC and ExpE for MRA and then existing VCS-c and VCS-e for Jabber guest and B2B traffic.  A good number of businesses would have already had the core VCS's in place already so why not utilize them still.  So to summarize, I would agree that having two different pairs for this makes sense.

Tim

[Brian Carscadden]

Tim,

Thanks for the reply.

It's safe to say all (or nearly all) of our deployments for our clients will be new Collab Edge with Expressway - no VCS for endpoint registration. All endpoints will register to CUCM.

That being said, and with my earlier point about traversal licenses, should B2B calling routing through the Jabber Guest C/E pair?   This would leave the other C/E Pair for all the MRA services.

Thanks in advance,

Brian

[Tim Cappel · Accepted solution]

Good to hear.  

B2B calling should route through the Jabber G pair, yes.

[Brian Carscadden]

Makes sense to me, thanks.

Any chance you have a Cisco doc reference for this?

Brian

[Tim Cappel]

Nothing specific.  There are guides around setting up Expressway and both with Jabber G and MRA setups.  It's more about best practices and just hearing the recommended stuff that Cisco will usually say through Voice of Engineer and other classes.  I believe that eventually MRA and Jabber G will be able to run on the same pair along with other modules, but until then you have to choose.  In which case I choose the one that's not passing through registrations.

[Brian Carscadden]

Great, thanks for all the info. Much appreciated.