Controllerless Networks

Reply
Frequent Contributor I
Posts: 76
Registered: ‎12-07-2015

IAP225/205 Mesh Portal and Point Disconnects

[ Edited ]

Hi All,

 

I'm getting a wierd issue where my mesh point and portal disconnect for about a minute, recover, then 15 minutes later do it again. Users connected to the mesh point AP do not have access to the gateway so they are getting frustrated with minor interruptions.

 

I have some syslogs being sent and every time before I get a disconnect on my continuous ping I see the following series of events in order from top to bottom:

 

Version 6.4.4.3-4.2.2.1_53878

Mesh Portal IP 192.168.1.51 - IAP 205

Mesh Point IP 192.168.1.52 - IAP 225

 

1. 02-29-2016 21:18:43 Local1.Warning 192.168.3.51 Feb 29 21:18:42 2016 192.168.3.51 sapd[1941]: <404093> <WARN> <192.168.3.51 40:E3:D6:CF:>  AM 40:e3:d6:72:72:50: ARM HT Empty Channel Trigger new 52E/0/0 old 132E/53/0 new_rra 52E/8

 

2. 02-29-2016 21:19:19 Local1.Warning 192.168.3.52 Feb 29 21:19:18 2016 192.168.3.52 cli[3405]: <341135> <WARN> <192.168.3.52 84:D4:7E:C5:>  Master Changed - new 0.0.0.0 old 192.168.3.51 current swarm state 3.

 

3. 02-29-2016 21:19:20 Local1.Warning 192.168.3.52 Feb 29 21:19:19 2016 192.168.3.52 cli[3405]: <341135> <WARN> <192.168.3.52 84:D4:7E:C5:>  Master Changed - new 0.0.0.0 old 192.168.3.51 current swarm state 0.

 

4. 02-29-2016 21:19:44 Local1.Warning 192.168.3.52 Feb 29 21:19:43 2016 192.168.3.52 cli[3405]: <341004> <WARN> <192.168.3.52 84:D4:7E:C5:>  Swarm State Change from Startup to Found

 

5. 02-29-2016 21:19:45 Local1.Warning 192.168.3.51 Feb 29 21:19:45 2016 192.168.3.51 cli[1925]: <341097> <WARN> <192.168.3.51 40:E3:D6:CF:>  recv_image_check: mac-84:d4:7e:c5:e9:c4, version-6.4.4.3-4.2.2.1_53878, ccode_idx-0.

 

6. 02-29-2016 21:19:45 Local1.Warning 192.168.3.51 Feb 29 21:19:45 2016 192.168.3.51 cli[1925]: <341165> <WARN> <192.168.3.51 40:E3:D6:CF:>  send image match to 192.168.3.52.

 

7. 02-29-2016 21:19:45 Local1.Warning 192.168.3.52 Feb 29 21:19:45 2016 192.168.3.52 cli[3405]: <341004> <WARN> <192.168.3.52 84:D4:7E:C5:>  Swarm State Change from Found to Image_ok

 

8. 02-29-2016 21:19:51 Local1.Warning 192.168.3.52 Feb 29 21:19:50 2016 192.168.3.52 cli[3405]: <341004> <WARN> <192.168.3.52 84:D4:7E:C5:>  recv_config_init: config isn't changed; skip config and change to sync complete

 

9. 02-29-2016 21:19:51 Local1.Warning 192.168.3.51 Feb 29 21:19:50 2016 192.168.3.51 cli[1925]: <341199> <WARN> <192.168.3.51 40:E3:D6:CF:>  send_config_init: send config to slave 192.168.3.52, using url 0, auto save disable 0.

 

Is ARM causing channels to switch due to interference and causing my disconnects? 

 

Thank you,

 

N

Guru Elite
Posts: 21,281
Registered: ‎03-29-2007

Re: IAP225/205 Mesh Portal and Point Disconnects

I would uncheck 80mhz channels in RF > ARM to make things more stable, for now.  

I would also go to RF > ARM >Show advanced options and make sure "Client Aware" is checked so that the access point does not attempt to change channels when there are clients on it.

 

Your AP changed channels because it saw an "empty" channel.  This forced a Virtual controller election, which caused the VC to be taken over by the other access point.

 

Unchecking 80 mhz channels gives interference a smaller footprint to operate in statistically.  Turning on Client Aware will keep your access point from changing channels while clients are attached...most of the time.

 

Try those two changes



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Frequent Contributor I
Posts: 76
Registered: ‎12-07-2015

Re: IAP225/205 Mesh Portal and Point Disconnects

[ Edited ]

Will client aware do anything for desktops that are connected via the mesh point? I currently have 0 active wireless clients but pings on the remote workstation still drop out (prior to making the settings you suggested).

 

Client aware is already enabled.

 

Interestingly enough, as soon as I disabled "80Mhz support" I started to get mac associations in the syslog for the desktop computers.

 

1. 02-29-2016 22:18:44 Local1.Warning 192.168.3.52 Feb 29 22:18:44 2016 192.168.3.52 cli[3405]: <541004> <WARN> <192.168.3.52 84:D4:7E:C5:>  recv_sta_online: receive station msg, mac-00:1f:bc:00: bssid-84:d4:7e:c5: essid-__wired__eth0.

 

2. 02-29-2016 22:18:44 Local1.Warning 192.168.3.52 Feb 29 22:18:44 2016 192.168.3.52 cli[3405]: <541013> <WARN> <192.168.3.52 84:D4:7E:C5:>  recv_sta_online,1186: add client 00:1f:bc:00:, client count 1.

 

I will test and report back, thank you.

 

N

Frequent Contributor I
Posts: 76
Registered: ‎12-07-2015

Re: IAP225/205 Mesh Portal and Point Disconnects

It's still happening although less often. I still see empty channel messages and then a loss of connectivity.

 

N

Guru Elite
Posts: 21,281
Registered: ‎03-29-2007

Re: IAP225/205 Mesh Portal and Point Disconnects

What is your regulatory domain?  It says that you are using DFS channels. 



Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Frequent Contributor I
Posts: 76
Registered: ‎12-07-2015

Re: IAP225/205 Mesh Portal and Point Disconnects

 

Allowed Channels for AP Type 205 Country Code US
------------------------------------------------
PHY Type Allowed Channels
-------- ----------------
802.11g (indoor) 1 2 3 4 5 6 7 8 9 10 11
802.11a (indoor) 36 40 44 48 52 56 60 64 100 104 108 112 116 132 136 140 144 149 153 157 161 165
802.11g (outdoor) 1 2 3 4 5 6 7 8 9 10 11
802.11a (outdoor) 36 40 44 48 52 56 60 64 100 104 108 112 116 132 136 140 144 149 153 157 161 165
802.11g 40MHz (indoor) 1-5 2-6 3-7 4-8 5-9 6-10 7-11
802.11a 40MHz (indoor) 36-40 44-48 52-56 60-64 100-104 108-112 132-136 140-144 149-153 157-161
802.11g 40MHz (outdoor) 1-5 2-6 3-7 4-8 5-9 6-10 7-11
802.11a 40MHz (outdoor) 36-40 44-48 52-56 60-64 100-104 108-112 132-136 140-144 149-153 157-161
802.11a 80MHz (indoor) 36-48 52-64 100-112 132-144 149-161
802.11a 80MHz (outdoor) 36-48 52-64 100-112 132-144 149-161
802.11a (DFS) 52 56 60 64 100 104 108 112 116 132 136 140 144

Guru Elite
Posts: 21,281
Registered: ‎03-29-2007

Re: IAP225/205 Mesh Portal and Point Disconnects

How far apart are these access points and where are they located? What kind of deployment is this?


Colin Joseph
Aruba Customer Engineering

Looking for an Answer? Search the Community Knowledge Base Here: Community Knowledge Base

Frequent Contributor I
Posts: 76
Registered: ‎12-07-2015

Re: IAP225/205 Mesh Portal and Point Disconnects

They are about 25 feet apart, ceiling mounted, one wall between.

 

It is a small 2 AP deployment, 6 total users (3 desktops). There is a requirement for mesh as the end of the office needs desktops but ethernet cannot be run.

 

Desktops > Netgear switch > Mesh Point (225) > Mesh Portal(205) > Ubiquiti Firewall > Internet Router

 

N

MVP
Posts: 1,357
Registered: ‎11-07-2008

Re: IAP225/205 Mesh Portal and Point Disconnects

I would put the 5Ghz radio on a static channel (disable ARM) in case the mesh link is dropping as the 5Ghz radio is scanning. 

Jerrod Howard
Sr. Techical Marketing Engineer
Frequent Contributor I
Posts: 76
Registered: ‎12-07-2015

Re: IAP225/205 Mesh Portal and Point Disconnects

That seems to work better, but if I start to add more APs wouldnt that cause all of the APs in the VC to channel overlap on 5ghz? (assuming there is only one mesh point/portal in the topology).

Search Airheads
Showing results for 
Search instead for 
Did you mean: