B5 Log File - Help understanding Channel Change


#1

Can anyone help me understand this log entry?

2017-01-14 19:10:45 (UTC +0000) root: MIMO_EVENT Channel Change p.ch:106(5530 MHz) s.ch:0(0 MHz) bw:140

What triggered the channel change?

Here’s what came before and after:

2017-01-08 15:52:15 (UTC +0000) syslog: MIMO_EVENT AutoEverything: NEW CHANNELS : ch1-> 5550 ch2-> 5550 bw-> 80 pw1-> 7 pw2-> 7 fdd-> 0 est_phyrat-> 584
2017-01-08 15:53:14 (UTC +0000) root: MIMO_EVENT CAC_END:Channel:110
2017-01-08 15:53:19 (UTC +0000) root: MIMO_EVENT Wireless associated
2017-01-11 08:21:18 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2017-01-11 08:21:36 (UTC +0000) root: MIMO_EVENT Wireless associated
2017-01-14 19:10:45 (UTC +0000) root: MIMO_EVENT Channel Change p.ch:106(5530 MHz) s.ch:0(0 MHz) bw:140
2017-01-14 19:10:47 (UTC +0000) syslog: MIMO_EVENT AutoEverything: NEW CHANNELS : ch1-> 5530 ch2-> 5530 bw-> 40 pw1-> 7 pw2-> 7 fdd-> 0 est_phyrat-> 400
2017-01-14 21:07:16 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2017-01-14 21:07:18 (UTC +0000) syslog: MIMO_EVENT AutoEverything: NEW CHANNELS : ch1-> 5560 ch2-> 5560 bw-> 80 pw1-> 7 pw2-> 7 fdd-> 0 est_phyrat-> 584
2017-01-14 21:08:16 (UTC +0000) root: MIMO_EVENT CAC_END:Channel:112
2017-01-14 21:08:24 (UTC +0000) root: MIMO_EVENT Wireless associated

Is there a document anywhere which would help me decode all the different log entries?

Thanks


#2

Hi Chris,

Auto Everything made the channel change after association due to high PER. If Auto Everything chooses a channel in a DFS band, there is a mandatory waiting period before re-associating. That is what the CACs mean. DFS channels can be avoided if you prefer by creating exclusions.

More info about these topics can be found in these links:
http://backhaul.help.mimosa.co/backhaul-faq-auto-everything
http://backhaul.help.mimosa.co/backhaul-faq-supported-frequencies (DFS info here)
http://backhaul.help.mimosa.co/backhaul-ug-exclusions-restrictions