Cisco Cisco TelePresence Video Communication Server Expressway
MTU Size
The default MTU size on the VCS is 1500 bytes. Under normal conditions this has no effect on the cluster.
However, if there are network elements between the cluster peers (which is not recommended), you must
ensure consistent MTU size throughout the path. Cluster replication could fail if the MTU is lower on the path
between peers, because the synchronization packets are not allowed to fragment.
However, if there are network elements between the cluster peers (which is not recommended), you must
ensure consistent MTU size throughout the path. Cluster replication could fail if the MTU is lower on the path
between peers, because the synchronization packets are not allowed to fragment.
Determine which network element in the paths between peers has the lowest MTU value, then adjust each
peer's cluster interface to use that value.
peer's cluster interface to use that value.
Cisco TelePresence VCS Cluster Creation and Maintenance Deployment Guide (X8.6)
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Appendix 3: IP Ports and Protocols