topic Re: How to create Virtual controller on APs in ExtremeWireless (WiNG)

How to create Virtual controller on APs

Alan_Phan — Wed, 24 Apr 2019 21:53:53 GMT

Dear Team,

We have meet issue need you help:
We have two AP: AP8432 and AP7632. We want configure AP8432 as VC, AP7632 as a client. But the result is not ok. Would you please help us resolve this issue.

Thanks,
Alan

Re: How to create Virtual controller on APs

ckelly — Wed, 24 Apr 2019 21:57:18 GMT

See this GTAC article

Re: How to create Virtual controller on APs

Alan_Phan — Wed, 24 Apr 2019 22:00:31 GMT

Dear,

You can reference log as below:
https://1drv.ms/f/s!AjaVi4rajm-PiDOIVXEUkcAiG9yq

thanks so much

Regards,
Alan

Re: How to create Virtual controller on APs

Alan_Phan — Wed, 24 Apr 2019 22:09:00 GMT

Hi Chris Kelly,

I do follow document : https://1drv.ms/b/s!AjaVi4rajm-PiDZcd9ziFZV_IJ8r but not sucess. Can you give your idea for this

Thanks,
Alan

Re: How to create Virtual controller on APs

ckelly — Wed, 24 Apr 2019 22:39:31 GMT

Alan, a lot of things to check.
First, if we're assuming that you properly followed steps to configure the AP as a VC....can you confirm that the other APs have layer-2/layer-3 visibility of the VC AP?

From the command line of ANY of the APs, run the command:
# show mint neighbors What's the output?

On one of the NON-VC APs, run
# show mint known-adopters What's the output?

Re: How to create Virtual controller on APs

Alan_Phan — Thu, 25 Apr 2019 12:51:53 GMT

Hello Chris,

Please see log as below:
ap8432-AAEF42#show mint neighbors
1 mint neighbors of 1B.AA.EF.42:
12.F1.98.F7 (ap7632-F198F7) at level 1, best adjacency vlan-1
ap8432-AAEF42#show mint known-adopters
12.F1.98.F7
ap8432-AAEF42#
=============
ap7632-F198F7#show mint neighbors
1 mint neighbors of 12.F1.98.F7:
1B.AA.EF.42 (ap8432-AAEF42) at level 1, best adjacency vlan-1
ap7632-F198F7#show mint known-adopters
12.F1.98.F7
ap7632-F198F7#

Thanks,
Alan

Re: How to create Virtual controller on APs

ckelly — Thu, 25 Apr 2019 21:06:17 GMT

Alan,

The output indicates that the two APs can see each other.

The problem though is that the 8432 is seeing the 7632 as a 'known adopter'. (which is backwards from what you want)
ap8432-AAEF42#show mint known-adopters
12.F1.98.F7 (This is the MINT ID of the 7632!)

This tells me that you have configured the 7632 as a virtual controller, instead of the 8432. For you, this won't work. The way that virtual controller APs operate, they can only adopt and manage other APs of the same model or models that are considered lower level APs. In this case, the 8432 is a HIGHER level AP, so therefore the 8432 will not adopt to a 7632.

See this chart for the breakdown:

What you need to do is remove the virtual controller settings from the 7632 and then setup the 8432 as a virtual controller.

Re: How to create Virtual controller on APs

Alan_Phan — Fri, 26 Apr 2019 15:10:01 GMT

Thanks Chris, I will check this