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Cisco 1142 - DotRadio0 resets

Josh Evans
Level 1
Level 1

I have a Cisco Aironet 1142 that keeps having issues with DotRadio0 going to a reset state. If I reload it seems to function for awhile and then it happens again shortly there after.

Apr 17 18:08:24.619: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

Apr 17 18:08:25.619: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down

ap#  show int desc

Interface                      Status         Protocol Description

BV1                            up             up      

Do0                            reset          down    

Do0.651                      reset          down    

Do0.653                      reset          down    

Do1                            up             up      

Do1.651                      up             up      

Do1.653                      up             up      

Gi0                             up             up      

Gi0.604                        up             up      

Gi0.651                        up             up      

Gi0.653                        up             up      

ap# show version

Cisco IOS Software, C1140 Software (C1140-K9W7-M), Version 12.4(21a)JA1, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2009 by Cisco Systems, Inc.

Compiled Wed 16-Sep-09 18:09 by prod_rel_team

ROM: Bootstrap program is C1140 boot loader

BOOTLDR: C1140 Boot Loader (C1140-BOOT-M) Version 12.4(23c)JA3, RELEASE SOFTWARE (fc1)

ap uptime is 18 minutes

System returned to ROM by reload

System restarted at 14:15:15 -0400 Wed Apr 17 2013

System image file is "flash:/c1140-k9w7-mx.124-21a.JA1/c1140-k9w7-mx.124-21a.JA1"

1 Accepted Solution

Accepted Solutions

Josh:

You are using 40 MHz channel width on radio 0 (2.4 GHz).

That will interfere with APs around for sure.

remove the command:

channel width 40-above

from under radio 0. that will probably eliminate most of the interference and hopefully will solve the issue.

Regards,

Amjad

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View solution in original post

7 Replies 7

Amjad Abdullah
VIP Alumni
VIP Alumni

Josh: How's the RF around that AP? A lot of noise and/or interference?
I've seen this behavior when the AP is set up in a noisy or high-interference environment.

Any site survey was conducted?

HTH

Amjad

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Leo Laohoo
Hall of Fame
Hall of Fame

Post your config.  Your config is incomplete that's why the radios are on "reset". 

Josh Evans
Level 1
Level 1

I believe the RF is good we have 8 access points through out the building and normally dont have any issues with connectivity. We have not done a site survey yet so that is probaby something we should look into next. Below is the current configuration. To reinterate the AP functions good for awhile and then resets. Upon a reload it works again fine for awhile and resets. I have 4 AP's that are doing the same thing and are placed in various points around the building. 

!

version 12.4

no service pad

service timestamps debug datetime msec

service timestamps log datetime msec

service password-encryption

!

hostname xxxxxxxx

!

!

aaa new-model

!

!

aaa group server radius rad_eap

server 10.38.10.33 auth-port 1645 acct-port 1646

server 10.38.10.34 auth-port 1645 acct-port 1646

!

aaa group server radius rad_mac

server 10.38.10.33 auth-port 1645 acct-port 1646

server 10.38.10.34 auth-port 1645 acct-port 1646

!

aaa group server radius rad_acct

server 10.38.10.33 auth-port 1645 acct-port 1646

server 10.38.10.34 auth-port 1645 acct-port 1646

!

aaa group server radius rad_admin

server 10.38.10.33 auth-port 1645 acct-port 1646

server 10.38.10.34 auth-port 1645 acct-port 1646

!

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

clock timezone -0500 -5

clock summer-time -0400 recurring

ip domain name panther.com

ip name-server 10.38.10.33

ip name-server 10.38.10.34

!

!

dot11 syslog

dot11 vlan-name VLAN604 vlan 604

dot11 vlan-name VLAN651 vlan 651

dot11 vlan-name VLAN653 vlan 653

!

dot11 ssid PanGuest

   vlan 653

   authentication open

   mbssid guest-mode

!

dot11 ssid PanWifi

   vlan 651

   authentication open eap eap_methods

   authentication key-management wpa version 2

   accounting acct_methods

   mbssid guest-mode

!

!

!

username xxxxxxx privilege 15 password 7 xxxxxxxxxxxx

!

!

bridge irb

!

!

interface Dot11Radio0

no ip address

no ip route-cache

!

encryption vlan 651 mode ciphers aes-ccm

!

encryption vlan 653 key 1 size 40bit 7 xxxxxxxxxxx transmit-key

encryption vlan 653 mode ciphers wep40

!

ssid PanGuest

!

ssid PanWifi

!

antenna gain 0

mbssid

channel width 40-above

station-role root

bridge-group 1

bridge-group 1 block-unknown-source

no bridge-group 1 source-learning

no bridge-group 1 unicast-flooding

bridge-group 1 spanning-disabled

!

interface Dot11Radio0.651

encapsulation dot1Q 651

no ip route-cache

bridge-group 255

bridge-group 255 subscriber-loop-control

bridge-group 255 block-unknown-source

no bridge-group 255 source-learning

no bridge-group 255 unicast-flooding

bridge-group 255 spanning-disabled

!

interface Dot11Radio0.653

encapsulation dot1Q 653

no ip route-cache

bridge-group 254

bridge-group 254 subscriber-loop-control

bridge-group 254 block-unknown-source

no bridge-group 254 source-learning

no bridge-group 254 unicast-flooding

bridge-group 254 spanning-disabled

!

interface Dot11Radio1

no ip address

no ip route-cache

!

encryption vlan 651 mode ciphers aes-ccm

!

encryption vlan 653 key 1 size 40bit 7 xxxxxxxxxxx transmit-key

encryption vlan 653 mode ciphers wep40

!

ssid PanGuest

!

ssid PanWifi

!

antenna gain 0

no dfs band block

mbssid

channel width 40-above

channel dfs

station-role root

bridge-group 1

bridge-group 1 block-unknown-source

no bridge-group 1 source-learning

no bridge-group 1 unicast-flooding

bridge-group 1 spanning-disabled

!

interface Dot11Radio1.651

encapsulation dot1Q 651

no ip route-cache

bridge-group 255

bridge-group 255 subscriber-loop-control

bridge-group 255 block-unknown-source

no bridge-group 255 source-learning

no bridge-group 255 unicast-flooding

bridge-group 255 spanning-disabled

!

interface Dot11Radio1.653

encapsulation dot1Q 653

no ip route-cache

bridge-group 254

bridge-group 254 subscriber-loop-control

bridge-group 254 block-unknown-source

no bridge-group 254 source-learning

no bridge-group 254 unicast-flooding

bridge-group 254 spanning-disabled

!

interface GigabitEthernet0

no ip address

no ip route-cache

duplex auto

speed auto

no keepalive

!

interface GigabitEthernet0.604

encapsulation dot1Q 604 native

no ip route-cache

bridge-group 1

no bridge-group 1 source-learning

bridge-group 1 spanning-disabled

!

interface GigabitEthernet0.651

encapsulation dot1Q 651

no ip route-cache

bridge-group 255

no bridge-group 255 source-learning

bridge-group 255 spanning-disabled

!

interface GigabitEthernet0.653

encapsulation dot1Q 653

no ip route-cache

bridge-group 254

no bridge-group 254 source-learning

bridge-group 254 spanning-disabled

!

interface BVI1

ip address 10.38.4.18 255.255.255.0

no ip route-cache

!

ip default-gateway 10.38.4.1

ip http server

ip http authentication aaa

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

access-list 111 permit tcp any any neq telnet

radius-server attribute 32 include-in-access-req format %h

radius-server host 10.38.10.33 auth-port 1645 acct-port 1646 key 7 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

radius-server host 10.38.10.34 auth-port 1645 acct-port 1646 key 7 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

radius-server deadtime 60

radius-server vsa send accounting

bridge 1 route ip

!

!

!

line con 0

access-class 111 in

line vty 0 4

access-class 111 in

transport input ssh

!

sntp server 10.38.4.1

sntp broadcast client

end

Josh:

You are using 40 MHz channel width on radio 0 (2.4 GHz).

That will interfere with APs around for sure.

remove the command:

channel width 40-above

from under radio 0. that will probably eliminate most of the interference and hopefully will solve the issue.

Regards,

Amjad

Rating useful replies is more useful than saying "Thank you"

Rating useful replies is more useful than saying "Thank you"

HI,

is there show logging and show tech from the AP after the issue happens?

Josh Evans
Level 1
Level 1

I removed the config line 'channel width 40-above' and so far the problem has not re-occurred. Thanks for the help!

Great news to hear.

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