RRM misconfiguration on 802.11a/n radio

I am working on tunneling a wireless network with the following components:
wlan-controller-14-4 impa-wireless4 --> AIR-WLC2106-K9
wlan-controller-14-2 impa-wireless2 --> AIR-WLC2106-K
11 AIR-LAP1131AG-A-K9
10 AIR-LAP1252AG-T-K9
They are geographically distributed on four floors in the same building.
Controllers and APs have the same sw version respectively.
I have configured RRM feature on both 802.11 a/n and 802.11 b/g/n
RRM feature on 802.11 b/g/n is working fine.
RRM feature on 802.11 a/n is unable to set different values for power conveniently.
All 1252 APs have been set to power equal 1.
Six Aps have been set to channel 149 even if they are neighbors (same floor or on correspondent position on other floors)
debugging client mac 50:cc:f8:86:80:7e I have gotten:
debug mac addr 50:cc:f8:86:80:7e *dot11a: Apr 07 16:39:36.537: Airewave Director: Processing Interference data on 802.11a AP 58:8D:09:1E:33:B0(1)
*dot11a: Apr 07 16:39:36.538: Airewave Director: Processing noise data on 802.11a AP 58:8D:09:1E:33:B0(1)
debug mac 50:cc:f8:86:80:7e*dot11a: Apr 07 16:39:36.540: Airewave Director: Processing Interference data on 802.11a AP 58:8D:09:1E:33:B0(1)
Any idea?
Tks Rosa

Hello
This is sort of like a testbed setup, so can you tell me which country/reg domain I can set on my controller in order to make our access point work. There is only one AP connected to this controller.
LAP: AIR-AP1252AG-N-K9
Also as per the guide, we can configure the country on a per-AP basis, would this be a viable option?
http://www.cisco.com/en/US/docs/wireless/controller/5.2/configuration/guide/c52lwap.html#wp1147805
Regards
Farrukh
P.S I think South Africa is ZA

Similar Messages

WLC 802.11a/n Radio Regulatory Domain Issue

Dear All
We are facing an issue with a customer where a Cisco 4400 Series controller is blocking the 802.11a/n Radio Interface of a 1250 AP. The radio shows as down on the controller GUI. The error message on the GUI is that the 'Regulatory Domain' is not supported. This can be seen from the attached screenshot. Also relevant parts of the WLC configs are attached.
WLC: Cisco 4402 Wireless
WLC Country: SA
Device: Cisco Lightweight Access Point 1250 (LAP) is controlled through the 4402 Cisco Wireless LAN Controller (WLC)
The operating system version of the LAP: c1250-k9w8-mx.124-18a.JA version of the WLC: Software Version 5.2.178.0
The problem is that the controller shows that the 802.11a/n Radio Interface in Radio Slot # 1 is always down , the customer tried to manually 'no shut' the AP interface from the console and it worked , but obviously this solution would not work as the configuration cannot be saved (LW AP).
Any help or pointers would be greatly appreciated.
Regards
Farrukh

Hello
This is sort of like a testbed setup, so can you tell me which country/reg domain I can set on my controller in order to make our access point work. There is only one AP connected to this controller.
LAP: AIR-AP1252AG-N-K9
Also as per the guide, we can configure the country on a per-AP basis, would this be a viable option?
http://www.cisco.com/en/US/docs/wireless/controller/5.2/configuration/guide/c52lwap.html#wp1147805
Regards
Farrukh
P.S I think South Africa is ZA

WLC 4404 - Not able to see the 802.11a/n AP summary details

Hi Friends,
I have a query related to wireless. I have multiple WLCs in my network. Recently I observed that in one WLC, in monitoring page while we checking the access point summary information, I can see in 802.11a/n Radios, 8 APs are down. And I tried to see those details by clicking the ‘detail’ option over there, but no result was displaying. Same I have checked in ‘Wireless’ tab as well but the result was same. We have total 69 APs associated with this WLC. AP Models which are associated with this WLC are AIR-LAP1231G-A-K9 & AIR-LAP1242AG-A-K9. Firmware version running in the WLC is 7.0.235.3 which is recently upgraded.
Then I logged into multiple WLCs for checking the same. All these WLC are running with 7.0.116.0 code. In some APs I am able to see some AP information which is down for 802.11a/n Radios, for eg: if I have 18 APs down in a/n radio I can see 7 AP’s details. But can’t able to see all the AP information. For 802.11b/g/n Radios it is perfectly fine. And in these WLCs we have AIR-LAP1262N-N-K9 model also associated.
And one thing I noticed here is the number of APs that I can see the details is exactly same as the number of AIR-LAP1262N-N-K9 model APs associated with that WLC.
So can anyone confirm that the other 2 models won’t support a/n radios (hardware limitation) or is it any kind of bug in the firmware.
My WLC models are AIR-WLC4404-100-K9 & WS-SVC-WISM-1-K9
Thanks in advance for your time and response
Regards,
Anand

Hi Leo,
I am not able to identify the AP which are down for 802.11a/n radio :( (we are not using a/n radio in this location, that is why 8 out of 8 are showing down).

Unstable Wireless Bridge Connection via 802.11a(Radio 1) of Aironet 1242

Hi,
I'm going to setup up an AP 1242 in a remote area to support b/g client via a 802.11a bridge link (all using AP 1242).
Before the deployment, I tested the configuration in a lab environment. However, I found the bridge link will come up a while and suddenly gone. Resetting the root AP or the non-root AP cannot bring the connection up again. Sometimes, when I shutdown the b/g radio (radio 0) of the remote AP, the bridge link will be established again. Following is the log from the root AP.
Thanks!
*Apr 4 12:24:05.013: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to r
eset
*Apr 4 12:24:05.054: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up
*Apr 4 12:24:05.665: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern
et0, changed state to down
*Apr 4 12:24:06.009: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio
1, changed state to up
*Apr 4 12:24:06.013: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio
0, changed state to down
*Apr 4 12:24:07.054: %LINK-3-UPDOWN: Interface BVI1, changed state to down
*Apr 4 12:24:16.091: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associa
te: No Response
*Apr 4 12:24:16.811: %LINK-3-UPDOWN: Interface BVI1, changed state to up
*Apr 4 12:24:17.811: %LINEPROTO-5-UPDOWN: Line protocol on Interface BVI1, chan
ged state to upInternal error: command failed                                                             <<<< Internal error: command failed ??????
                                                                                                                               <<<<don't know the meaning of this message
*Apr 4 12:27:22.206: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to r
eset
*Apr 4 12:27:22.233: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up
*Apr 4 12:27:22.233: dot11_mgmt: bad cookie returned from driver for mac 003a.9         <<<<<003a.928.dad0 is radio 1 / non root bridge of remote AP
928.dad0(expected 0x00000000, got 0x010ADAB0) - force driver to delete client             <<<<<don't know the meaning of this message
*Apr 4 12:27:22.235: %LINK-5-CHANGED: Interface Dot11Radio1, changed state to r
eset
*Apr 4 12:27:22.262: %LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up
*Apr 4 12:27:23.513: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern
et0, changed state to up
*Apr 4 12:27:26.993: %DOT11-6-ASSOC: Interface Dot11Radio1, Station T9_QC168_Ca
ntil 003a.9928.dad0 Reassociated KEY_MGMT[NONE]
*Apr 4 12:27:28.465: %DOT11-4-MAXRETRIES: Packet to client 003a.9928.dad0 reach
ed max retries, removing the client
*Apr 4 12:27:28.465: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9928.dad0 Reason: Previous authentication no longer valid
*Apr 4 12:27:28.467: %DOT11-4-MAXRETRIES: Packet to client 003a.9928.dad0 reach
ed max retries, removing the client
*Apr 4 12:27:31.673: %DOT11-6-ASSOC: Interface Dot11Radio1, Station T9_QC168_Ca
ntil 003a.9928.dad0 Reassociated KEY_MGMT[NONE]
*Apr 4 12:27:32.687: %DOT11-6-ADD: Interface Dot11Radio1, Station 003a.9926.e76
0 Associated to Parent 003a.9928.dad0
*Apr 4 12:28:46.178: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9928.dad0 Reason: Sending station has left the BSS
*Apr 4 12:28:46.179: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9926.e760
*Apr 4 12:28:46.181: %DOT11-6-ASSOC: Interface Dot11Radio1, Station T9_QC168_Ca
ntil 003a.9928.dad0 Reassociated KEY_MGMT[NONE]
*Apr 4 12:28:47.196: %DOT11-6-ADD: Interface Dot11Radio1, Station 003a.9926.e76
0 Associated to Parent 003a.9928.dad0
*Apr 4 12:29:15.132: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern
et0, changed state to down
*Apr 4 12:29:32.442: %DOT11-4-MAXRETRIES: Packet to client 003a.9928.dad0 reach
ed max retries, removing the client
*Apr 4 12:29:32.442: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9928.dad0 Reason: Previous authentication no longer valid
*Apr 4 12:29:32.443: %DOT11-6-DISASSOC: Interface Dot11Radio1, Deauthenticating
Station 003a.9926.e760
*Apr 4 12:29:32.444: %DOT11-4-MAXRETRIES: Packet to client 003a.9928.dad0 reach
ed max retries, removing the client
*Apr 4 12:31:10.285: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associa
te: Rcvd response from 003a.9928.2660 channel 6 2560
*Apr 4 12:31:18.286: %DOT11-4-CANT_ASSOC: Interface Dot11Radio0, cannot associa
te: AssociatingInternal error: command failed
*Apr 4 12:31:27.021: dot11_mgmt: bad cookie returned from driver for mac 003a.9
928.2660(expected 0x00000000, got 0x010ADAB0) - force driver to delete client
*Apr 4 12:31:29.107: %DOT11-4-UPLINK_ESTABLISHED: Interface Dot11Radio0, Associ
ated To AP T9_SML_LT2_AP2 003a.9928.2660 [None]
*Apr 4 12:31:29.108: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up
*Apr 4 12:31:30.108: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio
0, changed state to up

Thanks dmantill for reminding me to revisit the antenna and related stuff.
As the setup is in a lab environment, the APs are put on a work bench next to each other, therefore, the radio output power was lowered.
After adjusting the output powers, it works as expected.
Thanks Surendra and dmantill.

AP1042 802.11a/n/ac Radios down in the controller

802.11b/g/n Radios is up but 8021.11a/n/ac radio is down.   802.11a netowrk status is already enabled. Not too sure what may most likely be causing it to down?
Below is the output of "show sysinfo" from the controller and "show version" from the AP
Any input is appreciated.
Thanks Cathy
Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 8.0.100.0
RTOS Version..................................... 8.0.100.0
Bootloader Version............................... 8.0.100.0
Emergency Image Version.......................... 8.0.100.0
Build Type....................................... DATA + WPS
System Name...................................... wlc01
System Location..................................
System Contact...................................
System ObjectID.................................. 1.3.6.1.4.1.9.1.1631
IP Address....................................... 172.20.0.102
IPv6 Address..................................... ::
System Up Time................................... 3 days 1 hrs 57 mins 9 secs
System Timezone Location......................... (GMT+10:00) Sydney, Melbourne, Canberra
System Stats Realtime Interval................... 5
System Stats Normal Interval..................... 180
Configured Country............................... AU - Australia
--More-- or (q)uit
State of 802.11b Network......................... Enabled
State of 802.11a Network......................... Enabled
Number of WLANs.................................. 2
Number of Active Clients......................... 1
Burned-in MAC Address............................ 00:0C:29:ED:49:8A
Maximum number of APs supported.................. 200
System Nas-Id.................................... Cisco_ed:49:8a
TestAP#show ver
Cisco IOS Software, C1040 Software (C1140-K9W8-M), Version 15.3(3)JA, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2014 by Cisco Systems, Inc.
Compiled Fri 15-Aug-14 13:14 by prod_rel_team
ROM: Bootstrap program is C1040 boot loader
BOOTLDR: C1040 Boot Loader (C1140-BOOT-M) Version 12.4(23c)JA6, RELEASE SOFTWARE (fc1)
TestAP uptime is 40 minutes
System returned to ROM by power-on
System image file is "flash:/c1140-k9w8-mx.153-3.JA/c1140-k9w8-xx.153-3.JA"
Last reload reason:
cisco AIR-LAP1042N-A-K9 (PowerPC405ex) processor (revision A0) with 98294K/32768K bytes of memory.
Processor board ID FGL1707S3P4
PowerPC405ex CPU at 333Mhz, revision number 0x147E
Last reset from power-on
LWAPP image version 8.0.100.0
1 Gigabit Ethernet interface
2 802.11 Radios
32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:06:F6:3B:A9:F7
Part Number                          : 73-14034-06
PCA Assembly Number                  : 800-34273-07
PCA Revision Number                  : A0
PCB Serial Number                    : FOC17015X6X
Top Assembly Part Number             : 800-34285-05
Top Assembly Serial Number           : FGL1707S3P4
Top Revision Number                  : A0
Product/Model Number                 : AIR-AP1042N-A-K9

Configured Country............................... AU - Australia
WLC is configured for Australia (-N for AP1042).
Product/Model Number : AIR-AP1042N-A-K9
AP Regulatory Domain is for USA (-A).
This is the reason why your AP's 802.11a radio is permanently disabled. Unfortunately, the Wireless LAN Compliance Status (06 October 2014) doesn't list old-model APs. And this doesn't help anyone.
You may need to contact your vendor and ask them politely if it's possible for you to replace your AP with the ones with the correct Regulatory Domain.

Need to admin disable 802.11a radio from a few light weight access points

Hi team,
I need help to admin disable the 802.11a radio interface from a few lightweight APs. The operational status of these radio interfaces is down, so I am getting the following error when I try to disable them from the wireless LAN controller.
(Cisco Controller) config>802.11a disable wds2.hyd.shaw.net
This slot is not operational because Regulatory Domain Check has failed! Unable to disable the Cisco AP.
Could you please let me know how I can administratively disable the 802.11a radios on these APs? Please let me know if you need more details here.
Regards,
Swati

The two previous posts are correct: the regulatory domain is probably not allowing radio a to be enabled.
To be sure about this you can go to GUI of the wireless LAN controller > Wireless > Country. Here your country (or region) should be selected. Then depending on the access points that you have they may or may not join or turn on the radio. Per example if you have an access point from Europe (like AIR-AP1131AG-E-K9) then you will have a conflict if only the “America” regulatory domain (-A) is selected.
Here is a link with a list of products and their regulatory domain that might help:
http://tools.cisco.com/squish/648C8
What you can do here is to simply allow the regulatory domain that the access point needs and you should not have any problems.
IMPORTANT NOTE: If you change the regulatory domain and use an access point that transmit at certain channels and frequencies that are not allowed (illegal) in your country (region) you may have legal implications.
I hope this information helps you with your concern.

Aironet 1400 bridge Radio 802.11a disable

I have some problem with 802.11A radio is enabled but the detaild status is still display software status is disabled and hardware status is down. I checked the settings on Enable Radio is checked on enable. I can't get any radio accross. Any ideas whereelse I can check to get this working?
speed basic-6.0 basic-9.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0
power local 18 <<<<<<<<<<< I can't input this line from the command line. I assume that the bridge is taking the MAX setting. Please helps.
power client 18
packet retries 128
station-role non-root
rts threshold 4000
rts retries 128
concatenation
beacon period 20
infrastructure-client
I am really appreciated that everyone can give me some helps.
Thanks
CD

Hi Jeff
I copy the configuration of the bridge. This is a new bridge that I setup as a role non-root bridge. with the new default configuration, as soon as I changed the role to non-root bridge, the 802.11A interface is down and disabled. Is it normal operation and how do I enable it back? any helps I am really appreciated that
Thanks
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname NonRootBridge1
no logging console
aaa new-model
aaa group server radius rad_eap
aaa group server radius rad_mac
aaa group server radius rad_acct
aaa group server radius rad_admin
aaa group server tacacs+ tac_admin
aaa group server radius rad_pmip
aaa group server radius dummy
aaa authentication login default local
aaa authentication login eap_methods group rad_eap
aaa authentication login mac_methods local
aaa authorization exec default local
aaa accounting network acct_methods start-stop group rad_acct
aaa session-id common
resource policy
clock timezone MST -7
clock save interval 24
ip subnet-zero
ip domain name NonRootBridge1
dot11 activity-timeout bridge default 10000
dot11 ssid LabTest
   vlan 51
   authentication open
   infrastructure-ssid
dot11 network-map
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
ssid LabTest
speed basic-6.0 basic-9.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0
packet retries 128
station-role non-root bridge
rts threshold 4000
rts retries 128
cca 90
concatenation
beacon period 20
infrastructure-client
interface Dot11Radio0.51
encapsulation dot1Q 51 native
no ip route-cache
no snmp trap link-status
bridge-group 1
interface FastEthernet0
no ip address
no ip route-cache
interface FastEthernet0.51
encapsulation dot1Q 51 native
no ip route-cache
no snmp trap link-status
bridge-group 1
interface BVI1
ip address 192.168.0.10 255.255.255.0
no ip route-cache
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
ip radius source-interface BVI1
radius-server attribute 32 include-in-access-req format %h
radius-server vsa send accounting
bridge 1 protocol ieee
bridge 1 route ip
line con 0
line vty 0 4
sntp server 192.168.0.50
sntp broadcast client
end

WLAN showing up as 802.11a/g but not 11n

Using a wifi scanner like Metageek inssider or chanalyser, I'm seeing one of our WLANs as only 802.11a or g but not 802.11n like it should be.
All the other SSIDs on that AP/controller are showing as 802.11n. I can't for the life of me think how this could be, but the scanner is showing the top data rate as 54Mbps. Connect to another SSID and it shows the upper data rates as well.
Any ideas why this would be? Typically this just happens to be our main SSID. Is it just the scanner interpreting things wrong? I've looked at the controller and the upper data rates are enabled for 802.11n as well as 40MHz for the 5GHz radio.

It's WPA2/AES but WMM is not allowed (Cisco TAC had me remove that option to resolve a bug).

WiSM2 WLC 7.2 Maximum Allowed Clients under Global Parameters 802.11a/n b/g/n

Hello everyone,
Just loaded the 7.2.103.0 software onto the brand new WiSM2. Going throught the options and have found that under the global parameters for 802.11a/n, 802.11b/g/n radios is now the "Maximum Allowed Clients" option. The allowed setting is from 1 - 200 clients.
Does that mean only 200 clients will be allowed to associate to the WLC on that radio at a maximum?
Doesn't seems to make sense... I have the 500 AP license on this WiSM2... I know this option used to be an optional setting under a WLAN in previous releases.
Any ideas?
Regards,
Sasha.

Does that mean only 200 clients will be allowed to associate to the WLC on that radio at a maximum?
As what Scott has responded, this means 200 clients per WAP.
If you do exceed 200 clients per WAP (or whatever value you put in there) the clients will just get a nag and the system will let you in eventually.

802.11a/g/n optimizing for compatibility

How to ensure maximum client compatibility and stability in 802.11a/b/g/n networks?
I am running a Wireless network based on the WLC 5508 6 SW version, (with WCS mgmt) and 1142 APs. I would like a broad variety of clients, old G clients and new N clients to experience a stable connection to the network. I see Apple Macbooks, Lenovo-, Dell- and HP laptops in addition to HTC smartphones and iPhones on this network.
I am having issues with some types of clients experiencing "unstable" connections. They are able to get a link for a variable ammount of time, then suddenly loose connection for a short period of time before reconnecting. These clients mostly use a third party SSL-VPN link over my wireless, therefore the loss of connection can be quite annoying. From time to time some of these clients seem to be flapping between access points but not seamless like roaming should be, rather with a short stop in connectivity before reconnecting.
Previously we had a 802.11g Aruba wireless network in the same location. It had no such difficulties. This points me toward the config parametres in the controller.
Which 802.11 b/g/n and WLAN parameters can affect this? I am looking for a document describing a best practice for setting up these parameters, or if someone here has input to a successful stable setup as the configuration guide only says e.g. "Enable if you want Aironet Information Elements" does not help in deciding if I want this
My WLAN is set up with WPA2/AES PSK
and a guest network with web auth
Examples of parameters:
which Radio policy (bgn or gn)
Aironet IE?
MFP (disabled or enabled)
QoS profile?
can CCX location measurement affect performance?
Which Data rates should be set mandatory/enabled/disabled?
MCS (data rate) settings for 802.11n
anything I have forgotten?
The goal is:
A simple, no hassle network providing maximum compatibility with different clients with a plus of 802.11n speeds for compatible clients
wbr
-LA

Hey! I implemented your suggested improvements and the first impression is good!
on 802.11a and b/g I disabled lower datarates, set 12Mbps to mandatory and the higher ones to supported. The instant improvement was the RTT measurements I made (previously they averaged at about 13ms (to an internet site) after the change they dropped to about 3-4 ms on average! I would say this is a very significant improvement!
I have not been able to get any feedback from the user community yet :), but it sounds promising...
I am still looking for some more insight into these issues, so if someone still has some ideas, please let us know!
-LA

Prefer 802.11a over 802.11g within SSID - Is it possible?

Currently have a corporate SSID advertised enabling clients to connect using either A or G. Ideally I'd like clients too connect using A if they're able, and if not connect on G.
I think I've read on these forums this is possible but requires the WLCs to be running specific (quite new) firmware.
Is anyone able to advise?
TIA

Yes, you can try to make 802.11a more attractive by tweaking the rrm values on the controllers.
For example:
my tpc values for a are:
Tx Power Level Assignment Algorithm
Power Threshold (-80 to -50 dBM) -67
and only have 36, 40, 44, 48, 149, 153, 157, 161, 165, 26 channels enabled
for b:
Tx Power Level Assignment Algorithm
Power Threshold (-80 to -50 dBM) -70
You can also choke back on the basic rates for b/g depending upon your density.
If your environment allows you to control the clients, you can also tweak the network card settings on the clients to prefer a as well.

Prefer 802.11a over 802.11g

Hello,
Is there a way in an autonomous AP to set 802.11a/5ghz as the prefered connection frequency if the client is 802.11a capable? We have a number of notebooks that have draft N cards and we have AP's with A and G radios and I wanted to force the A capable clients to connect via A instead of G.
Thanks,
Dan.

Unrelated to the band-select CLI command, I am using a GPO with 2 x SSIDs - SSID2.4 & SSID5. The SSID5 has higher priority and from my limited testing, N clients seem to connect to to the SSID5 and obviously G clients only see SSID2.4 and connect to that. It seems to be working so far.
Obviously you need to be running the WZC supplicant for this to work.
Modifying the driver band-select option isn't a great option as not all clients support it and it is not scalable in any enterprise deployment. Scripting those drivers modifications would probably be a nightmare. I guess it may work in a small environment.
We'll see how well the band-select CLI option works.

All of the 802.11a performed down so many time

Hi all:
I encounter a problem on mesh wireless system. All of the 802.11a on RAP are "administritivity down" after few hrs or mins of startup.
After i check the "show controller Dot11radio 1" it shows "Last radio rest code : 49"
Could some one help me on this? My country code is Saudi arabia. And Both 802.11a/n and 802.11 b/g/n

1. I found there are 2 frequencies wild in the list, 20hz and 40 hz, which one is better ?
> 40mhz will combine two adjacent 20mhz channels, so in your case maybe 20mhz
2. I check the country code from the list, that Saudi is in -E zone, how to move to -M ?
> YOu can add a country code on the WLC, but you can't change an access point contry code
3. In 802.11a TPC option, i found 2 options. one is coverage optimize V1 , another is interference optimize V2. Base on my current situation, which one is better ?
> DO not use v2
4. I found some channels have heavy radar signal interference, how can i exclude them to channel list.
> In the DCA list, you can choose the channels you want. You can find the info here:
http://www.cisco.com/en/US/products/ps6366/products_tech_note09186a0080a3443f.shtml
Thanks,
Scott
Help out other by using the rating system and marking answered questions as "Answered"

802.11a Mesh Outdoors with 5500 controller

Hi
I am working on a project that will involve 5500 controllers managing 1260 series N rate A/Ps. There may be a requirement for MESH but my previous experience using Motorola 802.11a radios is that random, intermittent radio detections resulted in the MESH network having to keep re-forming resulting in less than 100% availability.
What's peoples experience in the UK is 802.11a outdoors?
Ideally i would prefer to use 2.4GHz and repeater access points for those areas not serviced with data connection but I cant find any info' so far on how whether the 5500 controller is able to manage repeater access points.
Any guidance or experiences much appreciated
Steve

I don't live or have done work in the UK so can't answer your first question, but for your other question... The wlc does not manage any APs configured as a repeater.
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AP 1232 support 802.11a/b/g at the same time ?

Hi people,
I´m installing 3 AP 1232(dual), documentation says they support 802.11a/b/g, they support it at the same time or it is up the anntena ?
Martin Cordero

It will support all three at the same time. So long as you have the A radio installed. As for b/g, you need to make sure that you have the B data rates enabled for them to work.

RRM misconfiguration on 802.11a/n radio

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