Running 6.4.3.5
Controller and locals
Hi,
We've been having some fun with a point to point mesh (AP-274s) we set up recently, we've had a few issues making it run reliably:
Firstly client APs on the point side of the mesh were unable to DHCP, this was fixed by upgrading to 6.4.3.5.
Since then the mesh had been going up and down every few hours. We disabled Very High Throughput in the dot11a radio profile (g radio is disabled) and this seemed to have fixed it. But strangely we noticed that this setting had reverted to 'Enabled' and the mesh had become unstable again (after about 2 weeks of running fine). Under what circumstances could this happen?
Could someone also explain the output of 'show ap mesh neighbors <ap-name>'? Output from our mesh portal:
MAC Portal Channel Age Hops Cost Relation Flags RSSI Rate Tx/Rx A-Req A-Resp A-Fail HT-Details Cluster ID
--- ------ ------- --- ---- ---- ----------------- ----- ---- ---------- ----- ------ ------ ---------- ----------
ac:a3:1e:80:a1:30 ac:a3:1e:80:9f:51 132+ 0 1 6.00 C 2m:30s VLK 51 400/270 5 5 0 VHT-40MHzsgi-3ss cs-guild
ac:a3:1e:80:a1:31 ac:a3:1e:80:9f:51 132+ 0 1 7.00 N 1h:2m:44s HLK 51 - 0 0 0 HT-40MHzsgi-3ss cs-guild
and the point:
MAC Portal Channel Age Hops Cost Relation Flags RSSI Rate Tx/Rx A-Req A-Resp A-Fail HT-Details Cluster ID
--- ------ ------- --- ---- ---- ----------------- ----- ---- ---------- ----- ------ ------ ---------- ----------
ac:a3:1e:80:9f:51 Yes 132+ 0 0 4.00 P 5m:49s HLK 48 405/400 5 5 0 HT-40MHzsgi-3ss cs-guild
The portal MAC ac:a3:1e:80:a1:30 appears in output such as 'show ap details wired-mac...' as one of the APs' radio MACs, but ac:a3:1e:80:a1:31 does not. So what is this MAC address? Similarly ac:a3:1e:80:9f:51 is not one of the radios for the point AP (but ac:a3:1e:80:9f:50 is).
Also what is the difference between (N)eighbor and (C)hild in this output?
Lastly (and apologies for the vagueness of the question) what kinds of things could mean VHT would make the mesh link unstable? For instance I did notice in ourARM profile 80MHz support is disabled (and was disabled even when the radio profile had VHT enabled), could this have been any effect?
Thanks for your help.