Wireless Access

Hi, I'm using Aruba controller 7210 with ArubaOS 6.3.
And there is a problem, that access point is losing channel and signal power for a while.
It can be once per 15 minutes or once per hour (there is no precise time interval).

We need more information:

How many access points?

What model are they?

How far apart are they?

Here is information, that you asked:
 - 235 access points
 - there are 13 AP-105, 100 RAP-3WN, 122 RAP-5WN
 - AP-105 a placed nearly 15-25 meters between each other, RAPs are placed at different branch office (one RAP per one branch office)

Also, I want to say that all AP and RAP have the same problem.

Please look at the post here:  http://community.arubanetworks.com/t5/Technology-Blog/Removing-the-Bottleneck-in-Wireless/ba-p/77978 for ideas..

It is a nice article, but what should I do to my APs?
AP loses signal each 15 or 25 minutes?

type "show log system 50: on the commandline to see if anything is happening systemwide.

(Aruba7210) #show log system 50

Sep 13 12:50:42 :311004: <WARN> |AP RAP-3WN-156@172.16.1.242 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 12:52:35 :311004: <WARN> |AP RAP-3WN-156@172.16.1.244 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 12:53:35 :311004: <WARN> |AP RAP-3WN-156@172.16.1.245 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 12:54:35 :311004: <WARN> |AP RAP-3WN-156@172.16.1.246 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 12:56:35 :311004: <WARN> |AP RAP-3WN-156@172.16.1.248 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 12:58:35 :311004: <WARN> |AP RAP-3WN-156@172.16.1.250 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 13:02:19 :311004: <WARN> |AP RAP-3WN-156@172.16.1.251 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 13:04:07 :311004: <WARN> |AP RAP-3WN-156@172.16.1.252 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 13:18:00 :311004: <WARN> |AP RAP-3WN-156@172.16.1.254 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 13:21:02 :311004: <WARN> |AP RAP-3WN-156@172.16.2.6 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 13:23:24 :311004: <WARN> |AP RAP-3WN-156@172.16.2.7 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 13:25:07 :311004: <WARN> |AP RAP-3WN-156@172.16.2.8 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 13:35:56 :311004: <WARN> |AP RAP-3WN-156@172.16.2.9 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 14:07:36 KERNEL: 7:<6>ADDRCONF(NETDEV_CHANGE): eth1.110: link becomes ready
Sep 13 14:08:33 KERNEL(Floor1_AP1@10.0.200.1): RESTARTING ALL TX
Sep 13 14:08:33 KERNEL(Floor4_AP1@10.0.200.4): RESTARTING ALL TX
Sep 13 14:08:33 KERNEL(Floor6AP3@10.0.200.2): RESTARTING ALL TX
Sep 13 14:08:33 KERNEL(Floor5AP1@10.0.200.7): RESTARTING ALL TX
Sep 13 14:08:34 KERNEL(Floor6APLagoon@10.0.200.8): RESTARTING ALL TX
Sep 13 14:08:34 KERNEL(Floor2_AP2@10.0.200.11): RESTARTING ALL TX
Sep 13 14:08:53 KERNEL(Floor4_AP2@10.0.200.10): RESTARTING ALL TX
Sep 13 14:17:33 KERNEL(Floor1_AP2@10.0.200.9): RESTARTING ALL TX
Sep 13 14:17:33 KERNEL(Floor3_AP1@10.0.200.3): RESTARTING ALL TX
Sep 13 14:17:34 KERNEL(Floor5AP3@10.0.200.12): RESTARTING ALL TX
Sep 13 14:17:34 KERNEL(Floor6AP2@10.0.200.6): RESTARTING ALL TX
Sep 13 14:25:22 :311004: <WARN> |AP RAP-3WN-156@172.16.2.244 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 14:28:17 :311004: <WARN> |AP RAP-3WN-156@172.16.2.245 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 14:36:17 :399838: <WARN> |fpapps| Resource 'Datapath CPU 9' has exceeded 30% threshold (actual:31%).
Sep 13 14:36:22 KERNEL: 0:<6>ADDRCONF(NETDEV_CHANGE): eth1.110: link becomes ready
Sep 13 14:36:23 KERNEL: 3:<6>ADDRCONF(NETDEV_CHANGE): eth1.111: link becomes ready
Sep 13 14:37:17 :399838: <WARN> |fpapps| Resource 'Datapath CPU 9' has dropped below 30% threshold (actual:1%).
Sep 13 14:37:19 KERNEL(Floor5AP1@10.0.200.7): RESTARTING ALL TX
Sep 13 14:37:19 KERNEL(Floor1_AP1@10.0.200.1): RESTARTING ALL TX
Sep 13 14:37:19 KERNEL(Floor4_AP1@10.0.200.4): RESTARTING ALL TX
Sep 13 14:37:19 KERNEL(Floor6APLagoon@10.0.200.8): RESTARTING ALL TX
Sep 13 14:37:20 KERNEL(Floor6AP3@10.0.200.2): RESTARTING ALL TX
Sep 13 14:37:20 KERNEL(Floor4_AP2@10.0.200.10): RESTARTING ALL TX
Sep 13 14:37:20 KERNEL(Floor2_AP2@10.0.200.11): RESTARTING ALL TX
Sep 13 14:42:41 :311004: <WARN> |AP RAP-3WN-156@172.16.1.210 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 14:44:57 :311004: <WARN> |AP RAP-3WN-156@172.16.1.221 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 14:46:19 KERNEL(Floor5AP3@10.0.200.12): RESTARTING ALL TX
Sep 13 14:46:19 KERNEL(Floor3_AP1@10.0.200.3): RESTARTING ALL TX
Sep 13 14:46:20 KERNEL(Floor6AP2@10.0.200.6): RESTARTING ALL TX
Sep 13 14:46:21 KERNEL(Floor1_AP2@10.0.200.9): RESTARTING ALL TX
Sep 13 14:49:25 :311004: <WARN> |AP RAP-3WN-156@172.16.1.224 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 14:58:57 KERNEL(RAP-3WN-KC3@(none)): ATHR_GMAC: Enet Unit:0 PHY:4 is UP Mii 100Mbps full duplex
Sep 13 15:00:10 :311004: <WARN> |AP RAP-3WN-156@172.16.1.226 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 15:01:26 :311004: <WARN> |AP RAP-3WN-156@172.16.1.227 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 15:06:36 :311004: <WARN> |AP RAP-3WN-156@172.16.1.228 sapd| Missed 30 heartbeats; rebootstrapping
Sep 13 15:12:24 :311004: <WARN> |AP RAP-3WN-156@172.16.1.229 sapd| Missed 30 heartbeats; rebootstrapping

Missing heartbeats and bootstrapping suggests a connectivity issue.  If it is happening to all of your access points, check to make sure the physical interface where the controller is connected does not have any errors and has negotiated correctly.

(Aruba7210) # show interface gigabitethernet 0/0/0

GE 0/0/0 is up, line protocol is up
Hardware is Gigabit Ethernet, address is 00:1A:1E:00:3E:F1 (bia 00:1A:1E:00:3E:F1)
Description: GE0/0/0 (RJ45 Connector)
Encapsulation ARPA, loopback not set
Configured: Duplex ( AUTO ), speed ( AUTO )
Negotiated: Duplex (Full), speed (1000 Mbps)
MTU 1500 bytes, BW is 1000 Mbit
Last clearing of "show interface" counters 6 day 10 hr 28 min 20 sec
link status last changed 6 day 10 hr 26 min 26 sec
508426432 packets input, 270582230680 bytes
Received 104166 broadcasts, 0 runts, 0 giants, 0 throttles
0 input error bytes, 0 CRC, 0 frame
64870 multicast, 508322266 unicast
472827205 packets output, 262446051532 bytes
0 output errors bytes, 0 deferred
0 collisions, 0 late collisions, 0 throttles
This port is TRUSTED