show stacking configuration

show stacking configuration


Shows how the nodes are configured in a stack topology. The configured values shown are the ones actually stored in the remote nodes at the time you issue this command.

Syntax Description

This command has no arguments or variables.



Usage Guidelines

Some stacking parameters do not take effect until the next restart, the configured values and the values currently being used are both shown. Specifically, this applies to the slot number, whether or not stacking is enabled, the master-capable configuration, the license level restriction, and the stack MAC configuration.

The only parameters that take effect without a reboot are the node priority and the alternate management IP subnetwork and gateway.

The Stack MAC in use line can display the following values:
  • If the command is executed on the master node:
    • none if there is no stack MAC configured.

    • The stack MAC configured on the master node.

  • If the command is executed on a non-master node:
    • unknown. The stack MAC address is only known by the executing master node. In this case, the M and m flags are not set. The i flag is set if there is a stack MAC configured locally.

Identified with the asterisk, the current node is the one on which the show stacking configuration command is executed.

A node identified with the ? character indicates that timely attempts to fetch the configuration information from the node have failed. There are two possible reasons for this display:
  • Communications with the node have been lost, in which case the node will probably be removed from the stack topology shortly.

  • The node is too busy to respond in time.

A row that displays the ? indicator shows the last values that were received from the node. If no values were ever received, all configured values show as not configured (-) or none. The node MAC address and the slot number that is currently in use are still displayed.


The following example:

Slot-1 Stack.2 # show stacking configuration
Stack MAC in use: 02:04:96:26:6b:ed
Node               Slot         Alternate          Alternate
MAC Address        Cfg Cur Prio Mgmt IP / Mask     Gateway         Flags     Lic
------------------ --- --- ---- ------------------ --------------- --------- ---
*00:04:96:26:6b:ed 1   1   Auto <none>             <none>          CcEeMm--- --
00:04:96:34:d0:b8 2   2   Auto <none>             <none>          CcEeMm--- --
* - Indicates this node
Flags:  (C) master-Capable in use, (c) master-capable is configured,
(E) Stacking is currently Enabled, (e) Stacking is configured Enabled,
(M) Stack MAC in use, (m) Stack MACs configured and in use are the same,
(N)  Stack link protocol Enhanced in use, (n) Stack link protocol Enhanced configured,
(i) Stack MACs configured and in use are not the same or unknown,
(-) Not in use or not configured
License level restrictions: (C) Core, (A) Advanced edge, or (E) Edge in use,
(c) Core, (a) Advanced edge, or (e) Edge configured,
(-) Not in use or not configured


This command was first available in ExtremeXOS 12.0.

Platform Availability

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 Feature License Requirements document.