The SummitStack feature allows you to physically connect up to eight individual Summit switches together as a single logical unit, which is called a stack. The stack behaves as a single switch with a single IP address and a single point of authentication.
In ExtremeXOS, a stack is controlled by a master switch, which runs full ExtremeXOS and is responsible for maintaining all of the software tables for all the switches in the stack. There can only be one master switch in a stack. All switches in the stack, including the master switch, are generally called nodes.
A stack can be thought of as a virtual chassis. Each node acts as if it were occupying a slot in a chassis and is controlled by the master. The high-speed stacking links function like the backplane links of a chassis.
Note
The SummitStack feature is supported only on the platforms listed for this feature in the license tables in the Feature License Requirements document.. All participants in a stack must run the same image version.
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