03-03-2014 02:16 PM - edited 07-05-2021 12:19 AM
How does the standby HA-SKU controller that is located remotely miles away maintains it's heartbeat while serving as backup to multiple sites.
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03-03-2014 02:50 PM
Hi Michael,
There are different deployments of HA with the HA-SKU.
1) You have AP-SSO/Client-SSO this is where the controllers are 1 - 1 sync and not 1 to multiple.
http://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/7-5/High_Availability_DG.html
2) You have HA N+1 backup. This is where the WLC turned into HA converts to MAX licenses and acts like a fullly licensed controller. You can back up 1 to many in this design.
Hope this helps
__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
__________________________________________________________________________________________
"I'm in a serious relationship with my Wi-Fi. You could say we have a connection."
__________________________________________________
"Im like bacon, I make your wireless better"
03-03-2014 03:21 PM
Just to add... You don't want to do AP SSO over layer 3 unless you are spanning your subnets. What you need to do is N+1 which is what George also posted. There is no heartbeat between the two with N+1 like in AP SSO.
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03-03-2014 04:17 PM
I just deployed 5 hospitals with N+1 and it works well ..
__________________________________________________________________________________________
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
__________________________________________________________________________________________
"I'm in a serious relationship with my Wi-Fi. You could say we have a connection."
__________________________________________________
"Im like bacon, I make your wireless better"
03-03-2014 04:43 PM
Agreed.... it does work well.... compared to AP SSO:)
Sorry Leo... hehe
Thanks,
Scott
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03-04-2014 06:00 PM
Thanks Guys I appreciate the information
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