From: Joe Martin (joe@martinsweb.org)
Date: Fri Apr 09 2004 - 14:37:34 GMT-3
Of course the answer is 'it depends'. Servers available for the cluster
have specific hardware features but also have client scaling limits.
7815=200 phones, 7825=1000 phones, 7835=2500 phones and 7845=7500 phones.
There is also the whole idea around dial plan weights and device weights
that must also be checked.
Max size of a cluster is as follows:
max of 8 servers running the ccm.exe process (phones registered)
4 active with 4 standby or all 8 active with 50% load on
each
You can have more than 8 servers though. For example in a large deployment
and I would catagorize this as large, I'd have a dedicated publisher.
Dedicated TFTP server. X number of servers based on platform and then double
it for backup. You may also want or need additional servers for backup
TFTP, MoH scaling, CTI scaling. But those other servers aren't running the
CCM.EXE process.
This of course is specifically for call processing. Other servers would be
needed for Unity, IPCC Express, Emergency Responder, Personal Assistant,
Conference Connection, etc.
Hope this helps.
Joe, CCIE #5917
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of lg01
Sent: Thursday, April 08, 2004 3:02 PM
To: ccielab@groupstudy.com
Subject: Planning on Cisco CallManager
Sorry, I'm not sure if this is off-topic but here it goes anyway :)
It would be greatly appreciated if someone can shed some light on this :o)
I'm in the planning process for one of my customers for migration to VoIP.
My customer currently has close to 8000 users and will likely to expand to
close to 10000 users by the end of this year.
Given the scale of the number of users, and assuming budget is not an issue.
How many MCS servers (CallManager) should I buy? In other words, how many
Call Managers can I fit in a cluster that can perform call processing?
Any help or explanations would be greatly appreciated.
Cheers,
Lee
This archive was generated by hypermail 2.1.4 : Mon May 03 2004 - 19:48:44 GMT-3