Introdução
Este documento descreve os comandos show ap join stats no controlador Cisco Wireless AireOS e demonstra como usá-los de forma eficaz.
Pré-requisitos
Requisitos
Não existem requisitos específicos para este documento.
Componentes Utilizados
Este documento usa as versões do controlador Cisco AireOS.
As informações neste documento foram criadas a partir de dispositivos em um ambiente de laboratório específico. Todos os dispositivos utilizados neste documento foram iniciados com uma configuração (padrão) inicial. Se a rede estiver ativa, certifique-se de que você entenda o impacto potencial de qualquer comando.
Conventions
Consulte as Convenções de Dicas Técnicas da Cisco para obter mais informações sobre convenções de documentos.
Informações de Apoio
Este documento fornece informações sobre os novos comandos show ap join stats no controlador versão 4.2.61.0 e demonstra como usá-los de forma eficaz. Para obter mais informações, consulte Solucionar problemas de um ponto de acesso leve que não se junta a uma controladora de LAN sem fio para efetivamente solucionar o motivo pelo qual um ponto de acesso (AP) não se junta a uma controladora. Se o AP não enviar uma junção para a controladora, você precisa solucionar o problema no AP.
Este documento se aplica a todas as versões da controladora (WLC) de 4.2.61 até a versão mais recente de 7.2.103.
Vários exemplos de saída de diferentes erros que ocorrem no controlador vêm depois das seções Informações de apoio e Algoritmo de solução de problemas.
Na versão 4.2.61.0 da controladora, a controladora agora rastreia todos os APs que enviam uma solicitação de detecção e para quais APs envia uma resposta de detecção. Ele também rastreia os APs que tentam se unir ao controlador e se eles são ou não bem-sucedidos. Há dois novos comandos CLI (console ou SSH) no controlador para ajudar a solucionar o motivo pelo qual um AP pode falhar ao se unir ao controlador:
show ap join stats summary [all | AP_Mac_Address]
show ap join stats detail <AP_Mac_Address>
Algoritmo de Troubleshooting
Use o comando show ap join stats summary all para ver quais APs não se juntam à controladora. O AP é inserido na lista show ap join stats assim que o controlador recebe uma solicitação de detecção.
Observação: o controlador nunca remove o AP da lista show ap join stats até que o controlador seja reinicializado. Em alguns casos, os APs com falha tentaram ingressar por mais de um dia ou estão completamente offline. Use o comando show ap join stats detail para descobrir quando a última solicitação de descoberta e a última solicitação de junção foram enviadas do AP para determinar se o AP perdeu a conectividade com o controlador ou se possivelmente foi movido para outro controlador.
A saída fornece o número total de APs dos quais a controladora recebeu solicitações de descoberta e, em seguida, lista se esses APs estão ou não unidos à controladora.
(Cisco Controller) > show ap join stats summary all
Number of APs................................. 3
00:0b:85:1b:7c:b0............................. Joined
00:12:44:bb:25:d0............................. Joined
00:13:19:31:9c:e0............................. Not joined
Depois de ter o endereço MAC do AP que não ingressou, use o show ap join stats summary <mac addr> para descobrir a última junção e o motivo da falha.
(Cisco Controller) >show ap join stats summary 00:14:f2:63:12:50
Is the AP currently connected to controller............. Yes
Time at which the AP joined this controller last time...
Jan 24 12:21:32.414
Type of error that occurred last........................
AP got or has been disconnected
Reason for error that occurred last.....................
Timed out while waiting for ECHO response from the AP
Time at which the last join error occurred..............
Jan 24 12:21:14.751
Se quiser informações detalhadas sobre solicitações de descoberta, solicitações de junção e solicitações de configuração, use o comando show ap join stats detail <mac-address>. Esse comando também indica se o controlador vê ou não apenas uma solicitação de descoberta do AP, mas não vê uma solicitação de junção.
(Cisco Controller) >show ap join stats detail 00:14:f2:63:12:50
Discovery phase statistics
- Discovery requests received........................... 2
- Successful discovery responses sent................... 2
- Unsuccessful discovery request processing............. 0
- Reason for last unsuccessful discovery attempt........
Not applicable
- Time at last successful discovery attempt.............
Jan 24 12:21:20.547
- Time at last unsuccessful discovery attempt...........
Not applicable
Join phase statistics
- Join requests received................................ 2
- Successful join responses sent........................ 2
- Unsuccessful join request processing.................. 0
- Reason for last unsuccessful join attempt.............
Not applicable
- Time at last successful join attempt..................
Jan 24 12:21:30.669
- Time at last unsuccessful join attempt................
Not applicable
Configuration phase statistics
- Configuration requests received....................... 2
- Successful configuration responses sent............... 2
- Unsuccessful configuration request processing......... 0
- Reason for last unsuccessful configuration attempt....
Not applicable
- Successful configuration attempt......................
Jan 24 12:21:32.414
- Time at last unsuccessful configuration attempt.......
Not applicable
Last AP message decryption failure details
- Reason for last message decryption failure............
Not applicable
Last AP disconnect details
- Reason for last AP connection failure.................
Timed out while waiting for ECHO response from the AP
Last join error summary
- Type of error that occurred last......................
AP got or has been disconnected
- Reason for error that occurred last...................
Timed out while waiting for ECHO response from the AP
- Time at which the last join error occurred............
Jan 24 12:21:14.751
Exemplo 1
Nesse caso, a hora no controlador está incorreta. O erro indica que a carga do certificado APs é inválida. Este erro ocorreu porque a hora no controlador estava fora do intervalo de tempo de validade dos certificados. Certifique-se de que o comando show time indique a hora correta.
Observação: os valores de tempo de 6 de março de 1993 na saída abaixo. É aqui que o relógio começa para o controlador sem o NTP configurado.
As três fases do AP que unem estatísticas de relatório com carimbos de data/hora são a Fase de descoberta, junção e configuração. Verifique o Resumo do Último Erro para descobrir por que o AP não conseguiu ingressar ou desconectar o motivo.
(Cisco Controller) >show ap join stats detailed 00:14:1b:5a:40:10
Discovery phase statistics
- Discovery requests received........................... 2
- Successful discovery responses sent................... 1
- Unsuccessful discovery request processing............. 2113123
- Reason for last unsuccessful discovery attempt........
Discovery request received on unsupported VLAN
- Time at last successful discovery attempt.............
Mar 06 19:03:50.779
- Time at last unsuccessful discovery attempt...........
Mar 06 19:03:50.782
Join phase statistics
- Join requests received................................ 1
- Successful join responses sent........................ 0
- Unsuccessful join request processing.................. 1
- Reason for last unsuccessful join attempt.............
Certificate payload in join request contains
invalid certificate
- Time at last successful join attempt..................
Not applicable
- Time at last unsuccessful join attempt................
Mar 06 19:04:00.810
Configuration phase statistics
- Configuration requests received....................... 0
- Successful configuration responses sent............... 0
- Unsuccessful configuration request processing......... 0
- Reason for last unsuccessful configuration attempt....
Not applicable
- Time at last successful configuration attempt.........
Not applicable
- Time at last unsuccessful configuration attempt.......
Not applicable
Last AP message decryption failure details
- Reason for last message decryption failure............
Not applicable
Last AP disconnect details
- Reason for last AP connection failure.................
Not applicable
Last join error summary
- Type of error that occurred last......................
Lwapp join request rejected
- Reason for error that occurred last...................
Certificate payload in join request contains invalid
certificate
- Time at which the last join error occurred............
Mar 06 19:04:00.810
Exemplo 2
Nesse caso, o AP envia a solicitação de descoberta em uma VLAN diferente da VLAN do endereço IP de gerenciamento. O controlador rejeita todas as solicitações de descoberta que não são recebidas na sub-rede da interface de gerenciamento.
(Cisco Controller) >show ap join stats detailed 00:14:1b:5a:40:10
Discovery phase statistics
- Discovery requests received........................... 10
- Successful discovery responses sent................... 5
- Unsuccessful discovery request processing............. 2113123
- Reason for last unsuccessful discovery attempt........
Discovery request received on unsupported VLAN
- Time at last successful discovery attempt.............
Jan 30 14:30:12.284
- Time at last unsuccessful discovery attempt...........
Jan 30 14:30:12.288
Join phase statistics
- Join requests received................................ 4
- Successful join responses sent........................ 0
- Unsuccessful join request processing.................. 4
- Reason for last unsuccessful join attempt.............
Certificate payload in join request contains invalid
certificate
- Time at last successful join attempt..................
Not applicable
- Time at last unsuccessful join attempt................
Mar 06 19:19:03.345
Configuration phase statistics
- Configuration requests received....................... 0
- Successful configuration responses sent............... 0
- Unsuccessful configuration request processing......... 0
- Reason for last unsuccessful configuration attempt....
Not applicable
- Time at last successful configuration attempt.........
Not applicable
- Time at last unsuccessful configuration attempt.......
Not applicable
Last AP message decryption failure details
- Reason for last message decryption failure............
Not applicable
Last AP disconnect details
- Reason for last AP connection failure.................
Not applicable
Last join error summary
- Type of error that occurred last......................
Failed to send Lwapp discovery response
- Reason for error that occurred last...................
Discovery request received on unsupported VLAN
- Time at which the last join error occurred............
Jan 30 14:30:12.288
(Cisco Controller) >
Exemplo 3
Nesse caso, o AP foi movido desse controlador para seu controlador primário.
Observação: o erro pode ser gerado por vários motivos, um dos quais é uma interrupção de rede.
(Cisco Controller) >show ap join stats detailed 00:14:1b:5a:40:10
Discovery phase statistics
- Discovery requests received........................... 23
- Successful discovery responses sent................... 23
- Unsuccessful discovery request processing............. 0
- Reason for last unsuccessful discovery attempt........
Not applicable
- Time at last successful discovery attempt.............
Jan 30 14:39:38.526
- Time at last unsuccessful discovery attempt...........
Not applicable
Join phase statistics
- Join requests received................................ 21
- Successful join responses sent........................ 21
- Unsuccessful join request processing.................. 0
- Reason for last unsuccessful join attempt.............
Not applicable
- Time at last successful join attempt..................
Jan 30 14:39:07.085
- Time at last unsuccessful join attempt................
Not applicable
Configuration phase statistics
- Configuration requests received....................... 21
- Successful configuration responses sent............... 21
- Unsuccessful configuration request processing......... 0
- Reason for last unsuccessful configuration attempt....
Not applicable
- Time at last successful configuration attempt.........
Jan 30 14:39:09.481
- Time at last unsuccessful configuration attempt.......
Not applicable
Last AP message decryption failure details
- Reason for last message decryption failure............
Not applicable
Last AP disconnect details
- Reason for last AP connection failure.................
Timed out while waiting for ECHO response from the AP
Last join error summary
- Type of error that occurred last......................
AP got or has been disconnected
- Reason for error that occurred last...................
Timed out while waiting for ECHO response from the AP
- Time at which the last join error occurred............
Jan 30 14:40:15.451
Exemplo 4
Nesse caso, o certificado autoassinado (SSC) do AP não estava correto no controlador. O controlador sempre verifica seu banco de dados local antes de encaminhar a solicitação a um servidor radius definido. Como resultado, a mensagem de erro "RADIUS authorization pends for AP" aparece quando a controladora não encontra o SSC localmente.
(Cisco Controller) >show ap join stats detailed 00:13:5f:fa:88:50
Discovery phase statistics
- Discovery requests received........................... 2
- Successful discovery responses sent................... 1
- Unsuccessful discovery request processing............. 2113123
- Reason for last unsuccessful discovery attempt........
Discovery request received on unsupported VLAN
- Time at last successful discovery attempt.............
Jan 30 14:58:58.070
- Time at last unsuccessful discovery attempt...........
Jan 30 14:58:58.071
Join phase statistics
- Join requests received................................ 1
- Successful join responses sent........................ 0
- Unsuccessful join request processing.................. 1
- Reason for last unsuccessful join attempt.............
RADIUS authorization is pending for the AP
- Time at last successful join attempt..................
Not applicable
- Time at last unsuccessful join attempt................
Jan 30 14:59:13.111
Configuration phase statistics
- Configuration requests received....................... 0
- Successful configuration responses sent............... 0
- Unsuccessful configuration request processing......... 0
- Reason for last unsuccessful configuration attempt....
Not applicable
- Time at last successful configuration attempt.........
Not applicable
- Time at last unsuccessful configuration attempt.......
Not applicable
Last AP message decryption failure details
- Reason for last message decryption failure............
Not applicable
Last AP disconnect details
- Reason for last AP connection failure.................
Radius authorization of the AP has failed
Last join error summary
- Type of error that occurred last......................
AP got or has been disconnected
- Reason for error that occurred last...................
Radius authorization of the AP has failed
- Time at which the last join error occurred............
Jan 30 14:59:13.117
(Cisco Controller) >
Exemplo 5
(Cisco Controller) >show ap join stats detailed 0026cb8168c0
Discovery phase statistics
- Discovery requests received.............................. 202
- Successful discovery responses sent...................... 0
- Unsuccessful discovery request processing................ 0
- Reason for last unsuccessful discovery attempt........... Not applicable
- Time at last successful discovery attempt................ Not applicable
- Time at last unsuccessful discovery attempt.............. Not applicable
Join phase statistics
- Join requests received................................... 122
- Successful join responses sent........................... 0
- Unsuccessful join request processing..................... 0
- Reason for last unsuccessful join attempt................ Not applicable
- Time at last successful join attempt..................... Not applicable
- Time at last unsuccessful join attempt................... Not applicable
Configuration phase statistics
- Configuration requests received.......................... 115
- Successful configuration responses sent.................. 0
- Unsuccessful configuration request processing............ 0
- Reason for last unsuccessful configuration attempt....... Not applicable
--More-- or (q)uit
- Time at last successful configuration attempt............ Not applicable
- Time at last unsuccessful configuration attempt.......... Not applicable
Last AP message decryption failure details
- Reason for last message decryption failure............... Not applicable
Last AP disconnect details
- Reason for last AP connection failure.................... Image data
request received from an unsupported AP
Last join error summary
- Type of error that occurred last......................... AP got or
has been disconnected
- Reason for error that occurred last...................... Image data
request received from an unsupported AP
- Time at which the last join error occurred............... Feb 16
00:50:16.841
Discovery phase statistics
- Discovery requests received.............................. 44
- Successful discovery responses sent...................... 44
- Unsuccessful discovery request processing................ 0
- Reason for last unsuccessful discovery attempt........... Not applicable
- Time at last successful discovery attempt................ Feb 26 18:36:24.098
- Time at last unsuccessful discovery attempt.............. Not applicable
Join phase statistics
- Join requests received................................... 44
- Successful join responses sent........................... 0
- Unsuccessful join request processing..................... 44
- Reason for last unsuccessful join attempt................ Join request receive
d from an unsupported AP
- Time at last successful join attempt..................... Not applicable
- Time at last unsuccessful join attempt................... Feb 26 18:36:39.497
Configuration phase statistics
- Configuration requests received.......................... 0
- Successful configuration responses sent.................. 0
- Unsuccessful configuration request processing............ 0
- Reason for last unsuccessful configuration attempt....... Not applicable
- Time at last successful configuration attemp--More-- or (q)uit
t............ Not applicable
- Time at last unsuccessful configuration attempt.......... Not applicable
Last AP message decrytion failure details
- Reason for last message decryption failure............... Not applicable
Last AP disconnect details
- Reason for last AP connection failure.................... Not applicable
Last join error summary
- Type of error that occurred last......................... Lwapp join request r
ejected
- Reason for error that occurred last...................... Join request receive
d from an unsupported AP
- Time at which the last join error occurred............... Feb 26 18:36:39.497
Informações Relacionadas