topic Re: CAPWAP Tunnel gets down randomly in Wireless

CAPWAP Tunnel gets down randomly

Tigrasino Tigrasino — Mon, 05 Jul 2021 19:38:55 GMT

Hello All,

We have a Strange issue , our Capwap tunnel between central WLC and Anchor WLC gets randomly down , and we run eping and mping between the Controllers the Tunnel gets back up. This issue is happening randomly but recently it happens frequently. And at each time we have to run the eping and mping to resolve this issue

Central WLC Model and version : AIR-CT3504-K9 , 8.5.131.0

Anchor WLC Model and version : AIR-CT2504-K9 , 8.3.102.0

we have a FW between the 2 WLCs

please anyone has a idea about this behavior his explanation and solution for this issue are very welcome.

Many thanks in advance.

Re: CAPWAP Tunnel gets down randomly

MHM Cisco World — Thu, 15 Oct 2020 11:01:27 GMT

check FW, see if there is CPAWAP UDP traffic in conn or not,
check this when the CAPWAP is down.

Re: CAPWAP Tunnel gets down randomly

Mark Elsen — Thu, 15 Oct 2020 12:04:31 GMT

- Additionally examine the logs on both controllers when this happens.

Re: CAPWAP Tunnel gets down randomly

Sandeep Choudhary — Thu, 15 Oct 2020 16:13:12 GMT

1. Also its not must but try with same software version on both WLCs.

2. Remove the mobility IP/Mac completelz from both WLCs and add it again.

These are just workarounds..

Re: CAPWAP Tunnel gets down randomly

Tigrasino Tigrasino — Tue, 20 Oct 2020 08:20:22 GMT

Thank you to all of your advices guys, we doublechecked the log on the FW and the WLCs during the issue and they did not show any thing as abnormal.

Any way we will get back with more details if this issue happens again

for upgrading the software that the WLC would have the same Software I have to say that we have the same scenario in another site and they are working properly with different software.