the stack. Consider these differences when selecting a master node, selecting a backup node, and
configuring failover operation.
Note
We recommend that the master and backup roles be assigned to switches from the same
series. For example, if the master node is an X460-G2 switch, the backup node should also be
an X460-G2 switch. Similarly, if the master node is an X670-G2 series switch, the backup node
should also be an X670-G2 switch.
Note
ExtremeSwitching X690 and X870 switches can be stacked with each other, but they cannot
be stacked with other switch models.
When easy setup compares two switches that have the same capability, the lower slot number takes
precedence.
We recommend that you follow the same ranking hierarchy when you plan the physical placement of
the switches in the stack.
SummitStack Topologies
presents a graphical representation of a stack and some of the terms that describe stack
conditions.
Figure 116: Example of a Stack, Showing the Active Topology and the Stack Topology
A stack is the collection of all switches, or nodes, that are cabled together to form one virtual switch
using the ExtremeXOS SummitStack feature.
Building Stacks
ExtremeSwitching and Summit Switches: Hardware Installation Guide
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