[cisco-voip] CCM Cross WAN Clustering

Wed Jun 14 14:01:55 EDT 2006

Alan,

The 40ms RTT is due to MS SQL.  These are numbers published by MS.  In a
lab envirment this will most likely work fine due to very little database
replication and changes.  However put 5000 phones on it and there is
considerably more network traffic between servers.

Craig

             "Alan Su"                                                     
             <cj.alan at gmail.co                                             
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                                       [cisco-voip]  CCM Cross WAN         
             06/14/2006 12:14          Clustering                          
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Dear All,

>From cisco document, the clustered CCM servers should meet the requirement
of 40ms round-trip time for database replication. In my case, the 2 sites
connected by IPLC with about 50ms. So I did some lab test to make sure it
will be working in my environment. But I found out that even in 200ms
round-trip time lab, the replication is still working!! I'm wondering that
is it a normal case or I misconfigure something. Does anybody have any clue
about this?

Thanks.

Regards,

Alan_______________________________________________
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