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stacking 460g2 with vim-2x


Userlevel 1
I am trying to stack two 460g2 via VIM-2x modules with exos 16.1.3, and have cabled them the VIM modules from S2 to S1 and S2 to S1 and they show link lights but do not form a stack. This works fine on the front panel ports but not the VIM. I noticed I had to run alternate as native mode is not supported on this module. Any thoughts on what I am missing? Thanks

8 replies

Userlevel 7
With those modules you will need to do 'enable stacking-support' then reboot the switch. You will also need to set the switches back to native stacking, if they are still configured for alternate. Both of these commands will require a reboot to take effect.
Userlevel 1
We will use VIM-2x card for stacking when we have 1G switch for stacking. You can do show stacking-support to see which ports can be used for stacking.
Userlevel 1
Thanks. I will give native a shot on Monday, but am fairly confident I read these cards do not support native stacking. Also I can see the ports available for stacking as suggested, but couldn't find much documentation on the command syntax to change them. Any suggestions?
Userlevel 2
Hi Dean,

FYI, you may find useful configuration and troubleshooting guide here:

https://gtacknowledge.extremenetworks.com/articles/How_To/Getting-started-with-Summit-Stacking/
Userlevel 1
Just found this same link as well. I will be trying to set back to Native and advise. Thanks
Userlevel 7
Looks like I may have misread the initial question. I read it as VIM-2q, not VIM-2x.

The VIM-2x can be used for Alternate stacking with the 1G models of the X460-G2. The 10G X460-G2s use the front panel 10G ports for Alternate stacking. See the following table for which ports to use with which switches:
http://documentation.extremenetworks.com/flr/exos_21_1/stacking/r_support-for-alternative-stack-port...
Userlevel 1
Ok tried Native mode to no avail. I do not seem to be able to stack via the VIM-2x module at all. The only successful stacking config that appears to be working, is with Alternate Stacking and the front panel ports 51 & 52. Can ports 53 and 54 be configured on the VIM-2x and be used for stacking? I am beginning to think not since the show stacking-support command only shows ports 51 & 52. Can stacking be performed with the VIM-2x module? If so how is this accomplished? Thanks
Userlevel 1
Thank you Brandon. Based on the difficulties I am experiencing and the document you have provided, I am surmising that stacking is not possible via the VIM-2x with these switches.
Userlevel 7
Dean Ferraro wrote:

Thank you Brandon. Based on the difficulties I am experiencing and the document you have provided, I am surmising that stacking is not possible via the VIM-2x with these switches.

That's correct. The 10G X460-G2s can only be stacked via alternate stacking using the front ports (51 & 52).

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