Automatically Adding or Replacing Nodes in a Stack

You can easily add or replace nodes in a stack.

Connecting a new node to a stack automatically triggers the following tasks in a stack:

Adds New Nodes—When a new switch is connected to a stack, the switch is automatically:
1. Assigned the lowest available slot number.
2. Set as stacking master-capability if the stack has only one master-capable switch (the master itself) and the switch is directly connected to the current stack master. Otherwise, the new switch is not made master-capable.
3. Assigned the stack MAC address.
4. Connected port configured for stacking (Summit X450-G2 and X460-G2 with attached VIM-2ss or VIM-2q modules.only).
  Note
  All switches, other than the Summit X450-G2 or X460-G2 (with VIM), require that you configure stacking on the stacking ports manually (configure stacking-support stack-port [stack-ports | all] selection [native {V80 | V160} | V320 |V400} | alternate]).
5. Rebooted, which then causes the switch to join the stack.
Incompatible ExtremeXOS Check—Checks for and resolves incompatible ExtremeXOS software versions of stack nodes. If the new switch is running an incompatible version, the version is reconciled by running the synchronize {slot slotid} command for that switch causing the new switch to align with the stack master.
License Mismatch Check—Checks for and resolves software license mismatches between all master-capable nodes. The following command is issued: configure stacking {node-address node-address | slot slot-number} license-level [core | advanced-edge | edge].
Note
License mismatches due to installing feature licenses cannot be resolved automatically. The node is left in the failed state.

To start automatic integration into an existing stack, phycially connect the new switch to the stack. For information about cabling, see ExtremeSwitching and Summit Switches: Hardware Installation Guide for Switches Using ExtremeXOS 21.1 or Later.