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Mohammed Haiderali
Enthusiast

What kind of traffic routes between Cluster Peers?

I am looking to add a VCS C and VCS E and create a cluster with my existing C and E. The 2nd set will be deployed in a different site. What kinf of traffic passes between the servers? Is there any QoS requirements for media between the servers or is it all control/signaling traffic?

3 REPLIES 3
Alok Jaiswal
Cisco Employee

Mohammed,

round trip delay between the servers should be 30ms. that's what is supported.

Normally the media pass through one of the server and not between the servers. Apart from the media lot of signaling pass between the two servers. Also its to be noted that we have seen cases where customer has MTU size limitation on the WAN routers causing calls to drops.

For communication the two VCS servers created a tunnel so it would be good to take a look at cluster creation deployment guide and to check what ports need to be open just in case if you are incorporating the firewall between the two sites.

regards

Alok

by the way what is your vcs-c and e software version ?

Both appliances are running 7.2.1

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