IAP 505 cluster AP checksum error
08-13-2020 07:00 AM
I just deployed a brand new IAP-505 cluster (controlerless) in version 220.127.116.11 but it is unstable...
- every AP that is connected on a different switch than the one where is the virtual controler has a log message: AP checksum error
- when I modify the configuration, the Wifi is completely unstable for about 5 min.
here is a quick output of # show log system from the VC
Aug 13 15:56:56 cli: <341132> <WARN> |AP AP-CH1email@example.com cli| Check sum mismatch for AP-10.6.12.166, slave 28729 vs master 1259, error_cnt 1, recover_sent 6.
Aug 13 15:56:56 cli: <341132> <WARN> |AP AP-CH1firstname.lastname@example.org cli| Check sum mismatch for AP-10.6.12.160, slave 28729 vs master 1259, error_cnt 7, recover_sent 6.
Aug 13 15:56:57 cli: <341132> <WARN> |AP AP-CH1email@example.com cli| Check sum mismatch for AP-10.6.12.152, slave 28729 vs master 1259, error_cnt 6, recover_sent 6.
the cluster is managed by airwave.
the switches are also Aruba and the network topology is simple ( a simple star). Spanning tree is enable (MST)
I'm used to deploy IAP-305 and I never had that kind of issue.
Do you have any idea?
Thank you for your help
Re: IAP 505 cluster AP checksum error
08-14-2020 01:01 AM
From what you explain: APs on the same switch as the VC are fine, those on a different switch get out of sync, suggest to me there is something between the switches.
Do you see anything in the switch logs, like spanning-tree block?
Have not seen this recently, so if there is no further response please reach out to Aruba Support and have them look at it.
If you have urgent issues, please contact your Aruba partner or Aruba TAC (click for contact details).