Sizing of the CVP as VXML server

[mamdouh.aref]

Gents,

As the Cisco CVP is the product used to serve the IVR function of the CC. The Cisco document is referring to 1200 ports per server as the maximum capacity. So in case we are deploying a CVP with complex IVR that creates many object during the call. however we can set the server limit in terms of ports. Are there any tool for this calculation.

Thanks,

Mamdouh Aref

ISTNetworks Development Manager

[Geevarghese Cheria]

Hi Mamdouh,

Agent Greeting also utilizes CVP and VXML gateway resources, so it is important to consider the call rate when sizing. The CVP SRND includes information about how to size based on call rate; however, most deployments are sized based on the number of ports. The Agent Greeting utilization has a profile of short calls but at a high call rate, so do not overlook this consideration.

Pease refer these url Sizing

https://supportforums.cisco.com/document/6346/cvp-port-utilization-and-sizing-considerations

Thanks and Regards,

Geevarghese

[eric.vanderknaap]

Be aware that the out-of-the-box CVP installation is running a 32-bits Tomcat process. If you are running Windows, this means you can address only 2 gigabytes of memory.

As any thread you launch uses stack space (so more memory), try to limit the number of simultaneous threads that will run on the VXML Server.

We ran into issues at around 1100 simultaneous threads on the JVM.

The Tomcat process crashes because there are no more available memory from a Windows standpoint to allocate the stack space for a new thread.