The following figure presents a graphical representation of a stack and some of the terms that describe stack conditions.
A stack is the collection of all switches, or nodes, that are cabled together to form one virtual switch using the ExtremeXOS SummitStack feature.
The maximum cable length supported between switches depends on the types of switches in your stack, the installed option cards, and the configured stacking ports. For more information, see Extreme Switching and Summit Switches: Hardware Installation Guide for ExtremeXOS 21.1 or Later.
A stack topology is the set of contiguous nodes that are powered up and communicating with each other. In the previous figure, Switch 8 is not part of the stack topology because it is not powered up.
An active topology is the set of contiguous nodes that are active. An active node is powered up, is configured for stack operation, and is communicating with the other active nodes.
In the previous figure Switch 5 has failed, stacking is disabled on Switches 6 and 7, and Switch 8 has no power. As a result, the active topology includes Switches 1 through 4 only.
For more information about SummitStack terminology, see SummitStack Terms.
Print
this page
Email this topic
Feedback
View PDF
Download EPUB