Change stacking master in 2 slot stack for BGP

[Michael_Goodlif]

Hi, I have a 2 slot stack currently configured in a daisy chain.

The stack is:
slot 1: X450e-48p (edge license) - Stack master
slot 2: X650-24x (core license) - Backup master

The problem arises due to the fact I now need to set up BGP, but this can only be set up on the master, and the only capable switch is currently the backup.

I have set the stacking priority of slot 2 to 2 and slot 1 to 1, so slot 2 (X650) should take over the master role at the next election. How do I trigger a stacking election process to take place, is there a command for this?

I was thinking one way would be to reboot the current master, and would the backup master would take the master role?

If possible, I'd like the re-election to take place without having to reboot anything.

Any help would be greatly appreciated.

Thanks.

[Sumit_Tokle]

As I have mentioned in my first comment, master and backup switch must have same license level else they will not form the stack. I am not sure how they were working before.

Are you sure the master-camability is off on the slot 1(X450). if it's off then it should not get backup role.
To check if the master compatibility is off or not, execute the command "show stacking configuration".

[Michael_Goodlif]

I have just discovered the problem. It is a license mismatch:

Slot: Slot-1 * Slot-2
------------------------ ------------------------
Current State: FAIL (License Mismatch) MASTER

Is there any way round this? The switches were stacked without a problem before

[Michael_Goodlif]

I have done what you said and unfortunately it is not working.

I have the Master as the X650 but the X450 will not join the stack again.

I can access the X450 using the failsafe account, so I can run commands on it.

Current status of the X450 is:

Slot-1 information:
State: Failed
Download %: 0
Last Error: Node Not Yet UP
Restart count: 1 (limit 5)
Serial number: N/A(0) N/A(0)
Hw Module Type: X450e-48p
SW Version: 12.3.3.6
Configured Type: X450e-48p
Ports available: 50
Recovery Mode: Reset
Node MAC: 02:04:96:35:E3:B4
Current State: FAIL (Node Not Yet UP)
Image Selected: secondary
Image Booted: secondary
Primary ver: 12.3.3.6
Secondary ver: 12.3.3.6
Config Selected: primary.cfg

Stack Topology is a Daisy-Chain
Active Topology is a Daisy-Chain
Node MAC Address Slot Stack State Role Flags
------------------ ---- ----------- ------- ---
00:04:96:35:e3:b4 1 Active CA-
*00:04:96:36:30:dd 2 Active Master CA-
* - Indicates this node
Flags: (C) Candidate for this active topology, (A) Active Node
(O) node may be in Other active topology

Any help would be greatly appreciated. I need to get this slot to join the stack!

[Michael_Goodlif]

Will i loose all config relating to this switch? how do i rejoin it to the stack?