Virtual Router Group - Lenovo Flex System Fabric CN4093 Application Manual

Virtual Router Group

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CN4093 Application Guide for N/OS 8.4
The virtual router group ties all virtual routers on the switch together as a single
entity. By definition, hot‐standby requires that all virtual routers failover as a
group, and not individually. As members of a group, all virtual routers on the
switch (and therefore the switch itself), are in either a master or standby state.
The virtual router group cannot be used for active‐active configurations or any
other configuration that require shared interfaces.
A VRRP group has the following characteristics:
 When enabled, all virtual routers behave as one entity, and all group settings
override any individual virtual router settings.
 All individual virtual routers, once the VRRP group is enabled, assume the
group's tracking and priority.
 When one member of a VRRP group fails, the priority of the group decreases,
and the state of the entire switch changes from Master to Standby.
Each VRRP advertisement can include up to 128 addresses. All virtual routers are
advertised within the same packet, conserving processing and buffering resources.