[cisco-voip] CER Clustering on a single UCM Cluster

[Brian Meade (brmeade)]

Adam,

I believe currently the limitation is a CUCM cluster must be tied to one CER server group.  I'd see a lot of issues with one CER group tracking a phone and it showing as unlocated for another CER server group.

I do not know of anything being done to support the scalability of CER for that large of an environment.  Maybe someone else can chime in on that.  

I would recommend working with your Cisco account team to have them run this by the CER Business Unit and see if it can be achieved in a future release.

Thanks,
Brian Meade

-----Original Message-----
From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Pawlowski, Adam
Sent: Monday, February 17, 2014 2:11 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] CER Clustering on a single UCM Cluster

Afternoon,

     I've been looking at setting up a CER cluster of two CER server groups, to support the documented capacity of number of ERLs. I'm not having a performance problem with what I have now, but, as those are the requirements, and I have over 29k ERLs, that would seem to be what I need to do here. I've managed to figure out how to get the two groups clustered together, but, I want to make sure this is a supported configuration. All the doc implies that would do this between UCM clusters, and that's how it seems to want to behave. On the "Unlocated Phones" screen, any phones that are not tracked by either group (new installs, say, and the ports are not discovered/doc'd) , show up twice. Once they're located by an ER group (but do not have an ERL defined) they disappear off of this screen. So, there's really no way to use it for things that don't have an ERL, they just are using default on some switch. 
     Is this breaking something, other than making the unlocated phones screen useless? Assuming I can account for phones using the default ERL somehow otherwise, does this set up work? Is this how I should be running this?

Thanks for your tips

Regards,

Adam P
SUNYAB

_______________________________________________
cisco-voip mailing list
cisco-voip at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip