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Cisco Bug: CSCvr91769 - Preferred achitecture CVD does not match cluster requirements on Expressway Clustering guide

Last Modified

Nov 07, 2019

Products (1)

  • Cisco TelePresence Video Communication Server (VCS)

Known Affected Releases

X12.5.5

Description (partial)

Symptom:
"Preferred Architecture for Cisco Collaboration 12.x Enterprise On-Premises Deployments, CVD" - Collaboration Edge section:
High Availability for Expressway-C and Expressway-E
[...]
- All nodes in a cluster need to be within 30 ms maximum round-trip time to all other cluster nodes. Clustering over the WAN is thus not recommended due to latency constraints.
[...]

Product list section:
 Cisco Expressway-C and Expressway-E |  Mobile and remote access and business-to-business communications |  X12.5

"Cisco Expressway Cluster Creation and Maintenance" guide for X12.5 - Clustering Prerequisites section:
Before setting up a cluster of X12.5 Expressway peers or adding an X12.5 Expressway to a cluster, ensure that the following requirements are met:
[...]
Network conditions are met:
[...]
Expressway supports a round trip delay of up to 80ms. This means that each Expressway in the cluster must be within a 40ms hop of all other peers in the cluster.

Conditions:
NA
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