This command sets a master-capability value for every node in the stack topology.
| none |
Only one node has master-capability turned on and all other nodes have master-capability turned off. |
| minimal |
Two nodes have master-capability turned on and all other nodes have master-capability turned off. |
| maximal |
All nodes have master-capability turned on. |
Default value in an unconfigured stack is maximal.
If there are more than eight nodes in the stack topology, the following message appears and the command is not executed:
ERROR: This command can only be used when the stack has eight nodes or less.Since only eight nodes can be operational in an active topology at a time, you must disconnect the remaining nodes before configuring master-capability with this command.
The configured values of slot-number and priority decide the nodes on which the master-capability should be turned on.
If the priority values are configured on the nodes, the highest priority node(s) are chosen.
If the priority values of all nodes are set to automatic or to the same priority value, the node(s) with the lowest slot number(s) are chosen. Extreme Networks may change automatic priority behavior in a future release.
If there is a slot number tie or if the slot numbers were never configured, the following message appears and the command is not executed:
ERROR: Unique slot numbers must be configured before using this command.The setting takes effect at the next restart of the node. The following message appears after the command is successfully executed:
This command will take effect at the next reboot of the specified node(s).Redundancy configuration has no operational effect on a node that is not in stacking mode.
To turn on master-capability on all nodes:
configure stacking redundancy maximal
To turn on master-capability on only one node:
configure stacking redundancy none
To turn on master-capability on two nodes:
configure stacking redundancy minimal
This command was first available in ExtremeXOS 12.0.
This command is available with all licenses and platforms that support the SummitStack feature. For information about which licenses and platforms support the SummitStack feature, see the Switch Engine 32.3 Feature License Requirements document.