Accesspoints changing controllers
03-21-2019 05:16 AM
I have a question regarding accesspoints changing controllers and rebooting.
2 times this month we have recieved alerts that a number of accesspoints(arround 50-60 out of 1700) have gone offline, rebooted and sometimes changed controller from Master to Local.
After a while they all return to normal. We have a 2 WLC (master and local) setup with arround 1700 accesspoints. We fail to find a reasson to this behaviour. No other network equipment experience any issues during these brief episodes.
Some of the alerts in Airwave looks like this:
Aruba AP 105 XXXXXXXX AP's associated controller is changed from XXXX-ARUBA-MASTER-7240 to XXXXX-ARUBA-LOCAL01-7240
The timeline is:
1st a log that says the AP changed Controller
then a log that says the AP is up
and then lastly a log saying that the AP is status "OK".
Any input is apreciated. Thank you.
Re: Accesspoints changing controllers
03-21-2019 11:33 AM - edited 03-21-2019 11:35 AM
We had this issue too, and opend a support case.
We upgraded to 126.96.36.199, and Aruba also had us correct our Master Local HA and Preemption by turning off HA on Bkup-lms.
APs do seem stable now.
show ha group-profile mtuhag Parameter Value --------- ----- Preemption Enabled HA on Bkup-lms Disabled Over-subscription Disabled State Synchronization Disabled Pre-shared Key N/A Inter Controller heartbeat Disabled Heartbeat Threshold 5 Heartbeat Interval 100 HA group-member IP address 172.16.255.21 dual HA group-member IP address 172.16.255.22 dual HA group-member IPv6 address N/A