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Occasional Contributor I

VM-Mobility Master and Backup

Hello, 

 

I purchased & licensed one vm MM and is currently in production.  I just found out that Aruba offers a 30-day free-backup solution.  All I need to do is bring another vm host with the MM image and put it on the same broadcast domain.  The instructions are very easy; basically doing a cluster.    

 

One of the steps is to create a vrrp - let's say I have the following:

MM x.x.x.10 (Production) 

Backup MM x.x.x.11 (future backup - 30 days to bring up my master in case of a failure) 

vrrp x.x.x.12  (Pending) 

 

Now, here comes my question:

 

I already have 4 controllers in production pointing to x.x.x.10 (MM), if I implement the backup solition creating a vrrp - do I need to repoint the 4 controllers to the vrrp?  

 

I think yes, but I wanted to double check because I am new to ArubaOS.  

 

Thank you in advance.    

 

Cheers! 

  

mkk
Contributor II

Re: VM-Mobility Master and Backup

Yes, you connect the mobility controllers based on the vrrp address to the mobility
Masters.

The mobility master redundancy shared the same license. There is no additional cost for the second mobility master. Its free at all to do this.

Re: VM-Mobility Master and Backup

You should point it to the VRRP VIP, one thing you could do is use the .10 as your VIP and that way the change would only need to be done on the MMs side without having to reboot your MCs and APs



Thank you

Victor Fabian

Pardon typos sent from Mobile
Thank you

Victor Fabian
Lead Mobility Architect @WEI
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
Occasional Contributor I

Re: VM-Mobility Master and Backup

Thank you, Fabian that's a great idea.  If you don't mind I would like to ask a follow-up question that I just realized.  

 

If I re-ip my MM and make the vrrp ip to x.x.x.10 (as you suggested) do I need to add all of the IP's to ClearPass "under devcies" as well? since CP is doing the 802.1x authentication.  Keep in mind that x.x.x.10 is already there.   

 

Thank you again!!! 

 

Re: VM-Mobility Master and Backup

You should change it so the RADIUS request are coming from the MCs instead of the MM but first add the MCs MGMT IPs in ClearPass

You can define that under Managed Network > go to each MC > Configuration > Authentication > Advanced > RADIUS Client > NAS IP (should be the MGMT IP


Thank you

Victor Fabian

Pardon typos sent from Mobile
Thank you

Victor Fabian
Lead Mobility Architect @WEI
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
mkk
Contributor II

Re: VM-Mobility Master and Backup

If you have two MC’c jn a cluster, configure also a vrrp vip between the MC’c nodes. This vip is needed to be used as the nas-ip address used in Clearpass NAD Devices.
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