[cisco-voip] CCM Cluster

[kapil atrish]

Hi Guys,
 
CCM 4.X doesn't support clustering over the WAN, for successfull clustering delay requirement is <40ms round-trip.
 
You may want to explore the opportunity of having any router running CME at old site and move the cluster to new location, or more the entire cluster to new location and let the phones register across the WAN, I don't see any challenge in doing either of these.

--- On Mon, 3/15/10, Tim Foo <kinusca at gmail.com> wrote:


From: Tim Foo <kinusca at gmail.com>
Subject: Re: [cisco-voip] CCM Cluster
To: thomaslemay at comcast.net, cisco-voip at puck.nether.net
Date: Monday, March 15, 2010, 9:52 AM



Hi,
 
Thnak you for the response, however as I had explained my problem is that the new departments in the new site where we are moving needs to have a full fledged VOIP connectivity before the other departments can move.
 
We donot even have a good conenctivity between these two locations, so my only connectivity can be a VPN between the two locations for teh control signals for cluster. 
 
Is there any other workarounds?


On Sun, Mar 14, 2010 at 3:19 AM, Thomas LeMay <thomaslemay at comcast.net> wrote:




  The Publisher is the central processing unit for your cluster and should function as such.  The Publisher should not be configured to run TFTP services or have phones registering to it.  This is why they have subscribers designed to carry the additional load for phone registrations, TFTP, MTP and so forth.       
 
Tom
 




From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Tim Foo
Sent: Sunday, March 14, 2010 3:48 AM 

To: cisco-voip at puck.nether.net
Subject: [cisco-voip] CCM Cluster 




 

Hi

 

In my present setup, I am having a CCM4.x cluster and the phones are registering to the Subscriber, we are moving to a new location. 

 

While setting up the new site, I am planning to move my Publisher to the new location, so that the phones & gateway at that location can register to it. How do I acheive this. Turn On Tftp services on the Publisher and then on the DHCP server at teh new location have option 150 to point to the Publisher IP. Is there anything else i need to do or consider..

 

The subscriber will be at the old location catering to the existing Phone requirements.

 

I plan to setup a VPN between the two locations, so that the Cluster doesn't break. Then when the office move is complete I can move the Subscriber and never break the cluster. Will this be ok? I hope the delay over the VPN will not be more than 150ms. Is this do-able.

 

thank you in advance

 

 

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