06-10-2020 02:44 AM - edited 07-05-2021 12:09 PM
Hi guys,
my situation is the following:
5520 anchor guest with an old 8.2 code connected to several wlc to allow guest to be propagated.
now on a branch we need to deploy a new wlc 9800 to replace (in the future) an old 5508.
I read the IRCM document and it pretty clear how to make the WLCs work together for the roaming.
But i have doubts regarding the anchor mobility. Correct me if I'm wrong but new 9800 supports CAPWAP tunnels and the mechanism is called Secure Mobility. If we had used old mobility (EoIP tunnels) we would have to upgrade the anchor guest (5520) to a specific AireOS version (8.8) to make both "worlds" to work together.
Right now we are using new-mobility because on a branch they put a 3650 switch which acts as a WLC (Converged Access). And as far as I know new mobility uses CAPWAP tunnels.
So for IRCM we need to upgrade the WLC 5508 to 8.5.164.0 and it's pretty clear to me. What is not clear is if new mobility can work with 9800. TAC told us that new mobility is not supported anymore in AireOS but if i see documentation: https://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/new-mobility-matrix.html it is.
We should go back on all controllers to the "old mobility" during the migrations?
Thanks for the answer.
Michele
Solved! Go to Solution.
06-10-2020 04:26 AM
You can have the 5520 and 5508 talk to the 9800
for that you need on the 5520 something > 8.8
and for the 5508 as the higher code you can use is 8.5 you need the IRCM version for now 8.5.164.0
Now for the 9800, 3650 & 5520 that is not a supported scenario.
You will need to have a dedicated anchor to support your foreign WLC using convergency solution (3560,3850,5760)
and another anchor to support the foreign with 9800,5508,5520 (AireOS WLCs)....
06-10-2020 11:42 PM
06-10-2020 03:26 AM
- I may be able to dig-up a Cisco Live presentation which I once saved, stating that for the 9800 , IRCM compatibility with AireOS required at least 8.9 or 8.10.x. Hence I don't think it can be done with the 5508 which only supports up to 8.5.x
M.
06-10-2020 03:55 AM
look at this documentation, it can be done. Anybody knows anything about my questions related to anchor mobility?
06-10-2020 04:26 AM
You can have the 5520 and 5508 talk to the 9800
for that you need on the 5520 something > 8.8
and for the 5508 as the higher code you can use is 8.5 you need the IRCM version for now 8.5.164.0
Now for the 9800, 3650 & 5520 that is not a supported scenario.
You will need to have a dedicated anchor to support your foreign WLC using convergency solution (3560,3850,5760)
and another anchor to support the foreign with 9800,5508,5520 (AireOS WLCs)....
06-10-2020 04:32 AM - edited 06-10-2020 04:36 AM
my plan was to get rid of 3650 Converged access anyway. so what you are saying is that 9800 doesn't support new mobility? because i couldn't find any information of that.
My issue is that all my controllers are using new mobility and if 9800 doesn't support that i have to go back to old EoIP mobility tunnels and it's quite an effort because i need to reload all wlc.
Thanks in advance
Michele
06-10-2020 06:02 AM
06-10-2020 08:00 AM
Hi Scott,
thanks for the clarification but i looked at the documentation and it is not written in an explicit way that new mobility is not supported. I just wanted to be sure and I had to go back to EoIP mobility tunnels (it's painfull :().
I will just register the APs that now are connected to the 3650 to one of my WLC in the headquarter and use flex connect (thanks God we have MPLS in the middle).
06-10-2020 11:42 PM
09-22-2020 05:52 AM
To further clarify, this compatibility matrix states that from XE 16.4 and onward, new mobility is not supported:
"New Mobility is not supported in Cisco Wireless Release 8.6 and later releases, Cisco IOS XE Release 3.10 and later releases, and Cisco IOS XE Release 16.4 and later releases."
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