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New Member

Redundancy over WAN

Do Cisco expressway C and E  support redunancy over WAN (Across data center) for increasing capacity as well as failover scenerios.

thanks

5 REPLIES

Yes, they do, however the

Yes, they do, however the absolute maximum round trip delay between the peers must be 30ms - the lower the better. Each peer should also use the same NTP server.

/jens

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VIP Green

The Expressway-Edge and

The Expressway-Edge and Expressway-Core is the same software as the VCS-Expressway and VCS-Control, just pacakaged for CUCM registered endpoints - so the same principles apply.

As Jens mentioned, each peer in a cluster needs to be within a 15ms hop (30ms round trip delay) of each and every other VCS in the cluster.

This is mentioned in the Prerequisites section of the Cluster Creation and Maintenance Deployment Guide (4th dot point on Page 5).

Wayne
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Wayne
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Please remember to rate responses and to mark your question as answered if appropriate.
New Member

Thanks!Have another Question

Thanks!

Have another Question related to same , Do Telepresence Conductor and MSE Chassis with 8710 blades also supported over WAN for clustering.

Don't know about the MSE

Don't know about the MSE Chassis with 8710 blades, but the Conductor does - again the max round trip delay of 30ms between peers applies.

/jens

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VIP Purple

I believe the MSE 8000 blades

I believe the MSE 8000 blades cluster over the chassis's backplane, and not via the network like the other servers in question.

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