Cisco unity

krishnashk · ‎03-25-2014

Hi Everyone

I am running cisco unity 7 and CUCM 7 side by side on VM ware.

unity - 1gb ram

CUCM - !gb ram

Custom VMnet 0 is bridged to the my wifi adaptor and both CUCM and unity are using VMnet0.

I having a lot of RTO's to the Unity, due to which Iam not able to hear IVR during the RTO.

There are not RTO's on CUCM, but less when compared to unity.

Is low RAM causing the issue or the traffic is bottlenecked at VMnet0?

Please Advise.

PS:MY first post. let me know if i violated any rules.

Amine Nouasri · ‎03-25-2014

There are some settings on ESXi regarding network performances issues when using Unified Communications Applications. It is called Large Received Offload (LRO). Not sure if it is your issue here but it is worth to check. Look at this link to verify if LRO is disabled :

https://supportforums.cisco.com/document/95886/disable-lro-ucs-uc-application-deployments

Please rate helpful answers!

krishnashk · ‎03-27-2014

HI Amine

Thanks for the response . Now i have bridged VMnet 0 to MSloopback and having no RTO.

Thanks for sharing the LRO link.