Will "disable stacking-support" reset my switch to defaults?

[David_Nelson]

I have have an X590-24x-1q-2c that was previously in a stack but is now in production as a stand-alone switch. I would like to use the QSFP28 ports on the switch but they appear to be reserved for stacking.

I believe the solution is to run disable stacking-support, but am concerned that similar to other “stack breaking” activities this will result in my switching being reset to factory defaults on reboot. Can anyone tell me with a significant degree of confidence if this will be the case or not?

BTW The documentation in the EXOS 30.6 Configuration Guide for removing a node from a stack is pretty confusing IMO. It says to determine if the node is using SumitStack-V feature by running “show stacking stacking-ports” command to see if stacking ports on the target node are using alternative stacking ports, and to run “unconfigure stacking-support” if alternative stacking ports are in use. On the X590 the output of this command shows “Native Stacking” with nary a mention of “alternative” anything, so I did not run unconfigure stacking-support, and now it seems I can’t use these ports for uplinks because of it. 😕

Anyhow so that’s how a got here if you wanted the backstory.

Thanks
David

[FredrikB]

If stacking support is enabled, I guess you have interface numbers like 1:1 and 1:24 in the config, right? In that case, what you have is a single member stack. “show stacking” should provide some answers.

[David_Nelson]

The switch is not running a stacking config. I followed the instructions here except I missed step 2: https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-remove-a-node-from-a-stack

Specifically I skipped step 2 where it says to run unconfigure stacking-support on the node to be removed, but don’t reboot.

I jumped right to steps 3-4 and ran unconfigure stacking slot 2

When I ran this command the node I was removing rebooted and came back up with a default config as expected, so I went ahead and reconfigured it as a stand-alone switch and put it into production, but have now found that stacking-support is still enabled and I would like to turn it off.

I will proceed under the assumption that disable stacking-support command will wipe the switch and make a script type backup of my config before running and plan downtime to deal with this.

Thank you for your help.

[FredrikB]

You should be able to use one QSFP28 port for data when in stacking mode and two for stacking. In stand-alone mode, you can only use two of those ports as data ports which is kind of silly, but apparently a marketing decision. That is enough for you to have a redundant uplink but not to run two X590’s as an MLAG pair with a good capacity between them.

Isn’t there a stack config conversion tool somewhere that let’s you run a stacked config through it and gives you a non-stacking config as output? You still hav to reboot, but you can just apply the new config after the reboot and be up and running.

[StephanH]

Hello David,

yes, your switch will start with factory default after removing the stacking configuration. 

See here for reference:

https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-remove-a-node-from-a-stack