VSX Cluster in the High Availability Mode

Important - This section does not apply to Scalable Platforms (Maestro and Chassis).

Important:

The only mode available for creating a new VSX Cluster that was installed as R81.10 and higher is Virtual System Load Sharing (VSLS).
VSX Clusters in the High Availability mode that are upgraded from R81 and lower to R81.10 and higher stay in the High Availability mode after the upgrade.

You can also convert a VSLS Cluster to the High Availability mode and vice versa (see Changing the VSX Cluster Type).

Virtual Switches in a High Availability VSX Cluster

In a VSX Cluster, Virtual Switches are also clustered for redundancy and are defined as Active/Active.

The physical interface connected to the Virtual Switch is monitored by means of the Cluster Control Protocol (CCP).

In the event of a failover, all Virtual Systems on the Standby VSX Cluster Member become Active, and send Gratuitous ARP Requests from the warp interface between the Virtual System and the Virtual Switch.

Item	Description
1	Active VSX Cluster Member
2	Standby VSX Cluster Member
3	Virtual Switch Cluster
4	Active Virtual Switch
5	Virtual System 1
	Physical Link
	Warp Link

In the above figure, a simplified VSX Cluster contains two VSX Cluster Members in the High Availability mode, one Active, and the other Standby.

The Virtual Switches within each VSX Cluster are Active/Active.

When the physical interface connected to either Virtual Switch fails to respond, a failover occurs.