Aruba Instant & Cloud Wi-Fi

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Occasional Contributor II
Posts: 19
Registered: ‎08-01-2013

All IAPs choosing the same channel in a building

I'm setting up an Aruba Instant cluster on an 8 story building, two APs per floor.

 

I've noticed that ARM is choosing Channel 1 for every AP in the cluster.

 

When that happens the clients can no longer connect to the wireless networks. This causes the clients to see many networks on Channel 1.

 

We tried to solve it by manually setting up the channel on every AP. But after a few hours, the channel was reverted to 1 on most APs.

 

Have you experienced this issue before?

MVP
Posts: 4,271
Registered: ‎07-20-2011

Re: All IAPs choosing the same channel in a building

What IAP OS version you have installed ?

Are those very close to each other ?

Are users experiencing performance issues?

From the support tab run the ap arm history
Thank you

Victor Fabian
Lead Mobility Engineer @ Integration Partners
AMFX | ACMX | ACDX | ACCX | CWAP | CWDP | CWNA
Occasional Contributor II
Posts: 19
Registered: ‎08-01-2013

Re: All IAPs choosing the same channel in a building

We had two APs located per floor, not very close to each other.

 

All of them were running 6.2.0.0-3.2.0.4, the issue was solved after we upgraded to 6.2.1.0-3.4.0.2

Aruba
Posts: 760
Registered: ‎05-31-2007

Re: All IAPs choosing the same channel in a building

Thanks for posting the current status and REMEDY to your observed issue.


JF

Occasional Contributor I
Posts: 8
Registered: ‎07-09-2015

Re: All IAPs choosing the same channel in a building

I am experiencing the same issue with 6.4.4.3-4.2.2.0_53034. Does anyone know if it can be fixed with an upgrade again?

Guru Elite
Posts: 21,029
Registered: ‎03-29-2007

Re: All IAPs choosing the same channel in a building

Please be specific AND show screenshots of what you are talking about.



Colin Joseph
Aruba Customer Engineering

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

Occasional Contributor I
Posts: 8
Registered: ‎07-09-2015

Re: All IAPs choosing the same channel in a building

I have two IAPs 205 deployed in the same building floor, relatively close to each other.  The issue im presenting is that both AP's are in the same channel. 

 

 AP617.PNG

AP619.PNG

 

ARM Marpico.PNG

Guru Elite
Posts: 21,029
Registered: ‎03-29-2007

Re: All IAPs choosing the same channel in a building

Your photo is so blurry, that I cannot see anything.

 

SSH into each AP and type "show ap arm rf-summary" to see why they would be on the same channel:

 

 

show ap arm rf-summary


Channel Summary
---------------
channel  retry  phy-err  mac-err  noise  util(Qual)       cov-idx(Total)  intf_idx(Total)
-------  -----  -------  -------  -----  ----------       --------------  ---------------
36       0      0        0        96     2/1/1/0/100      12/0(12)        36/0//0/0(36)
40       0      0        0        92     7/7/0/0/100      0/0(0)          0/16//0/0(16)
44       0      0        2        92     10/10/0/0/100    5/0(5)          37/23//0/0(60)
48       0      0        0        92     3/3/0/0/100      13/0(13)        68/12//0/0(80)
52       0      0        0        92     1/1/0/0/100      0/0(0)          0/29//0/0(29)
56       0      0        0        92     1/1/0/0/100      3/0(3)          18/9//0/0(27)
60       0      0        0        92     1/1/0/0/100      5/0(5)          28/25//0/0(53)
64       0      0        0        92     1/1/0/0/100      6/0(6)          33/9//0/0(42)
149      0      0        0        92     3/3/0/0/100      4/0(4)          62/18//0/0(80)
153      0      0        0        92     1/1/0/0/100      10/0(10)        61/21//0/0(82)
157      0      0        0        92     1/1/0/0/100      0/0(0)          3/18//0/0(21)
161      0      0        0        92     1/1/0/0/100      0/0(0)          3/0//0/0(3)
165      0      0        0        96     100/100/0/0/100  0/0(0)          0/0//0/0(0)
1        0      0        0        96     11/9/1/0/99      46/0(46)        225/40//0/0(265)
6        0      0        0        94     23/18/0/0/95     42/0(42)        236/74//0/0(310)
11       0      0        0        94     17/16/0/0/99     36/0(36)        219/40//0/0(259)


Colin Joseph
Aruba Customer Engineering

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

Occasional Contributor I
Posts: 8
Registered: ‎07-09-2015

Re: All IAPs choosing the same channel in a building

Hello, this is the output

 

Marpico-AP-617# show ap arm rf-summary

Channel Summary
---------------
channel retry phy-err mac-err noise util(Qual) cov-idx(Total) intf_idx(Total)
------- ----- ------- ------- ----- ---------- -------------- ---------------
36 0 0 0 97 3/2/1/0/100 5/0(5) 43/0//0/0(43)
40 0 0 0 97 2/1/1/0/100 0/0(0) 25/11//0/0(36)
44 0 0 0 97 3/2/1/0/100 0/0(0) 16/10//0/0(26)
48 0 0 0 97 3/1/1/0/99 0/0(0) 32/6//0/0(38)
149 0 0 0 97 4/2/1/0/99 0/0(0) 51/19//0/0(70)
153 0 0 0 97 2/1/1/0/100 0/0(0) 68/8//0/0(76)
157 0 0 0 97 9/7/1/0/99 0/0(0) 19/19//0/0(38)
161 0 0 0 97 7/6/1/0/100 0/0(0) 19/0//0/0(19)
165 0 0 0 97 3/1/1/0/99 0/0(0) 0/0//0/0(0)
1 0 0 0 73 35/14/4/0/63 0/0(0) 128/53//0/0(181)
6 0 0 0 94 33/20/4/0/91 0/0(0) 121/196//0/0(317)
11 0 0 0 97 34/15/4/0/85 7/0(7) 291/115//0/0(406)

Columns:util(Qual): ch-util/rx/tx/ext-ch-util/quality

HT Channel Summary
------------------
channel_pair Pairwise_intf_index
------------ -------------------
149-153 146
36-40 79
157-161 57
44-48 64

Interface Name :wifi0
Current ARM Assignment :149+/14
Covered channels a/g :0/0
Free channels a/g :0/0
ARM Edge State :disable
Last check channel/pwr :2d:19h:17m:6s/2d:19h:22m:54s
Last change channel/pwr :13d:11h:45m:12s/13d:11h:44m:52s
Next Check channel/pwr :0s/0s
Assignment Mode :Maintain

Interface Name :wifi1
Current ARM Assignment :11/14
Covered channels a/g :0/0
Free channels a/g :0/3
ARM Edge State :disable
Last check channel/pwr :2d:19h:23m:42s/2d:19h:20m:46s
Last change channel/pwr :3d:0h:2m:21s/3d:0h:2m:21s
Next Check channel/pwr :0s/0s
Assignment Mode :Maintain


Channel quality history:wifi0
36:Q: 100 95 100 100 99 99 99 99 98 97 97 99 99 98 99 99 97 97 97 97 99 99 100 98
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 1 1 1 1 2 3 3 1 1 2 1 1 3 3 3 3 1 1 0 2
40:Q: 100 100 100 99 99 99 99 99 99 99 99 99 100 99 100 100 100 100 100 100 100 100 98 98
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 1 1 1 1 1 1 1 1 1 0 1 0 0 0 0 0 0 0 0 2 2
44:Q: 100 100 100 100 100 99 100 99 99 100 100 99 99 99 100 100 97 97 100 100 100 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 1 0 1 1 0 0 1 1 1 0 0 3 3 0 0 0 0 0 0
48:Q: 99 63 99 99 99 99 99 99 100 99 99 99 98 98 98 98 98 99 99 99 99 99 99 99
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 1 1 1 1 1 1 1 1 0 1 1 1 2 2 2 2 2 1 1 1 1 1 1 1
149:Q: 99 99 99 99 99 99 100 100 99 99 98 98 99 99 99 99 99 99 100 100 100 100 99 99
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 1 1 1 1 1 1 0 0 1 1 2 2 1 1 1 1 1 1 0 0 0 0 1 1
:R: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
153:Q: 100 100 100 100 100 100 99 98 98 99 100 100 99 99 99 99 96 96 96 100 100 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 0 0 1 2 2 1 0 0 1 1 1 1 4 4 4 0 0 0 0 0
157:Q: 99 99 99 99 99 99 100 99 99 99 99 91 99 99 99 100 100 99 100 100 95 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 1 1 1 1 1 1 0 1 1 1 1 9 1 1 1 0 0 1 0 0 5 0 0 0
161:Q: 100 100 100 100 95 100 100 99 100 97 100 99 99 99 100 100 100 100 99 99 100 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 0 0 0 0 5 0 0 1 0 3 0 1 1 1 0 0 0 0 1 1 0 0 0 0
165:Q: 99 99 99 99 100 100 100 100 99 99 99 100 100 99 99 99 99 100 100 97 100 100 100 100
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97 97
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 1 1 1 1 0 0 0 0 1 1 1 0 0 1 1 1 1 0 0 3 0 0 0 0


Channel quality history:wifi1
1:Q: 63 57 63 76 71 71 82 96 96 96 93 93 57 81 81 69 63 90 78 81 76 58 58 87
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 73 73 73 94 86 86 79 91 91 92 88 85 71 77 77 73 73 89 77 82 89 89 76 95
:s: 37 37 37 0 0 0 18 0 0 0 0 0 43 25 25 37 37 0 25 9 0 0 28 0
:U: 17 17 17 24 29 29 4 4 4 4 7 7 13 13 13 26 10 10 19 19 24 42 42 13
6:Q: 91 91 69 91 92 87 79 81 81 81 76 76 76 66 78 97 97 97 97 96 79 79 79 92
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: 94 94 91 91 94 91 77 83 91 94 92 94 82 88 88 94 94 92 92 92 94 89 89 94
:s: 0 0 0 0 0 0 25 6 0 0 0 0 9 0 0 0 0 0 0 0 0 0 0 0
:U: 9 9 9 9 8 13 17 19 19 19 24 24 24 34 22 3 3 3 3 4 21 21 21 8
11:Q: 85 81 81 86 86 85 86 86 85 85 79 79 94 94 90 90 90 90 86 86 82 34 88 88
:c: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:N: *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97 *97
:s: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
:U: 15 19 19 14 14 15 14 14 15 15 21 21 6 6 10 10 10 10 14 14 18 18 12 12
:R: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 66 0 0
Marpico-AP-617#

Guru Elite
Posts: 21,029
Registered: ‎03-29-2007

Re: All IAPs choosing the same channel in a building

You might want to consider disabling "Client Aware".  An access point will not change channels if clients are associated and passing traffic, if this is enabled.  If there is severe interference, it will change channels.

 

Which channel are all of your access points on?

 



Colin Joseph
Aruba Customer Engineering

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

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