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Virtual chassis rebuild

Posted: 30 Nov 2025 04:15
by dtdamen
Hi guys,
I`ve got a single Alcatel 6560 running in a productive enviroment. Now I´d like to expand this device to a virtual chassis with 2 devices.
I know that, when I connect a second device to the first master device via DAC cable, that nothing will happen. The second device also
comes up as a second master and thats it.

Is there any chance to get the VC installed without the need for a complete re-installation (all *.cfg files delete on both devices, restart both devices and vc will build up)?

Thanks
Thomas

Re: Virtual chassis rebuild

Posted: 30 Nov 2025 05:42
by Cristek
Should be fairly simple, at least on paper:

Check the current chassis-group of your already existing device (in this example its 45):
->
-> cd working
-> more vcsetup.cfg
!========================================!
! File: /flash/working/vcsetup.cfg !
!========================================!
! Virtual Chassis Manager:
virtual-chassis chassis-id 1 configured-chassis-id 1
virtual-chassis auto-vf-link-port 1/1/27
virtual-chassis auto-vf-link-port 1/1/28
virtual-chassis chassis-id 1 chassis-group 45
!
! PLEASE DO NOT MODIFY THE AREAS OF [SAVED INFO xxx]
! [SAVED INFO VC IDs] 3
!

! IP:
->
->

Then, boot the second switch as a standalone device in your lab.
Edit the vcsetup.cfg with vi, or create one in your favorite text editor.
This file should manually assign the ID of 2 where a '1' is present. You should also change the chassis-group to match the main switch. Something like this:
virtual-chassis chassis-id 2 configured-chassis-id 2
virtual-chassis auto-vf-link-port 2/1/27
virtual-chassis auto-vf-link-port 2/1/28
virtual-chassis chassis-id 2 chassis-group 45


Then plug in the DAC cables and the second switch will reboot to join the stack.
Check status with show virtual-chassis topology

Re: Virtual chassis rebuild

Posted: 30 Nov 2025 05:45
by dtdamen
Perfect, thanks bunches for your quick reply

Regards,
Thomas