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Cisco CER

1) How many CER servers are recommened per Call Manager Cluster 4.1/4.2 or it depends on number of IP Phone Users.

2) Can it be designed in a redundant so if primary goes down, secondary kicks in.

Thanks

1 REPLY

Re: Cisco CER

1. CER is going to be sized on a couple of different factors, amount of users, location redundancy, amount of CM Clusters, etc. Reference the CM SRND and the CER admin guide for more details.

2. CER is accessed via CTI RP. You can create redundant CTI RPs so if the first CER is done you'll use CFNA CFB to failover to the 2nd server. It's an active/failover scenario.

Here is the CM SRND

http://www.cisco.com/application/pdf/en/us/guest/netsol/ns268/c649/ccmigration_09186a0080479538.pdf

Here is a performance evaluation document for CER

http://www.cisco.com/application/pdf/en/us/guest/products/ps842/c1244/ccmigration_09186a008014a100.pdf

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Thanks

Fred

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