Introdução
Este documento descreve as referências rápidas sobre a listagem de eventos históricos com o Catalyst 9800.
Estrutura
Aproveitando os recursos de registro sempre ativo da plataforma 9800, você pode listar eventos de um tipo específico de forma rápida e fácil, desde que saiba como as linhas de registro específicas se parecem.
Este artigo gira em torno do uso do comando "show logging profile wireless", que passa por todos os logs binários relacionados à conexão sem fio (que estão sempre ativos, mesmo sem habilitar qualquer forma de depuração ativa).
O "start last <time period>" permite voltar até um determinado período nos logs.
O comando irá produzir um monte de dados no terminal se você não usar o pipe para restringir a sua busca, é por isso que todos os exemplos usam o pipe com eventos específicos.
Cliente
Listando solicitações de associação recebidas por um AP de um determinado cliente durante um período específico:
myc9800-CL#show logging profile wireless start last 1 hour filter mac 9418.6548.6fb1 | i Association received | MY_AP
2024/07/30 08:55:58.981172447 {wncd_x_R0-0}{1}: [client-orch-sm] [19389]: (note): MAC: 9418.6548.6fb1 Association received. BSSID 38ed.18cb.d7cf, WLAN opendb, Slot 1 AP 38ed.18cb.d7c0, MY_AP, Site tag default-site-tag, Policy tag default-policy-tag, Policy profile test, Switching Central, Socket delay 0ms
Listando clientes que foram autenticados com êxito:
myc9800-CL#show logging profile wireless start last 10 days | i Authentication Success
2020/09/26 16:41:21.397677 {wncd_x_R0-0}{1}: [ewlc-infra-evq] [19680]: (note): Authentication Success. Resolved Policy bitmap:11 for client 02c0.2901.34c8
2020/09/26 17:04:33.523999 {wncd_x_R0-0}{1}: [ewlc-infra-evq] [19680]: (note): Authentication Success. Resolved Policy bitmap:11 for client d280.eb73.6044
2020/09/26 17:21:59.892585 {wncd_x_R0-0}{1}: [ewlc-infra-evq] [19680]: (note): Authentication Success. Resolved Policy bitmap:11 for client 02c0.2901.34c8
2020/09/26 17:32:09.289109 {wncd_x_R0-0}{1}: [ewlc-infra-evq] [19680]: (note): Authentication Success. Resolved Policy bitmap:11 for client 02c0.2901.34c8
2020/09/26 17:41:58.123180 {wncd_x_R0-0}{1}: [ewlc-infra-evq] [19680]: (note): Authentication Success. Resolved Policy bitmap:11 for client 64b5.c66d.13ac
Listando clientes que obtiveram um endereço IP bem-sucedido:
myc9800-CL#show logging profile wireless start last 10 days | i IP learn successful
2020/09/26 16:41:30.621520 {wncd_x_R0-0}{1}: [client-iplearn] [19680]: (note): MAC: 02c0.2901.34c8 Client IP learn successful. Method: DHCP IP: 192.168.1.13
2020/09/26 17:04:37.622905 {wncd_x_R0-0}{1}: [client-iplearn] [19680]: (note): MAC: d280.eb73.6044 Client IP learn successful. Method: IP Snooping IP: 192.168.1.36
2020/09/26 17:22:03.830465 {wncd_x_R0-0}{1}: [client-iplearn] [19680]: (note): MAC: 02c0.2901.34c8 Client IP learn successful. Method: IP Snooping IP: 192.168.1.13
2020/09/26 17:32:09.966598 {wncd_x_R0-0}{1}: [client-iplearn] [19680]: (note): MAC: 02c0.2901.34c8 Client IP learn successful. Method: IP Snooping IP: 192.168.1.13
2020/09/26 17:33:30.236544 {wncd_x_R0-0}{1}: [client-iplearn] [19680]: (note): MAC: 3cf7.a4ae.f607 Client IP learn successful. Method: IP Snooping IP: 192.168.1.49
RRM
Alterações de canal
9800# show logging profile wireless | include history-channel
2020/02/13 10:50:03.297 {wncd_x_R0-0}{2}: [radio-history-channel] [24955]: (note): Channel change for AP5c83.8f6e.4250 Slot:1 Band:802.11a Previous Chan:100 Current Chan:132 chan width: 40 Reason: DCA Algorithm
Valores de ruído e interferência
Isso exigiria definir "set platform software trace wireless chassis ative r0 rrm rm-client-dca info" para exibir as informações nos logs:
9800#show logging profile wireless start last x hours| include rrm-client-dca
2020/06/26 15:44:08.636988 {wncd_x_R0-0}{1}: [rrm-client-dca] [9853]: (info): f4bd.9e38.4200 (Radio: 802.11a) Channel set request: on cell to channel 40 from 40 (width 20) to reduce co-channel interference (noise/interference/rssi) from (-128,-128,127) to (-128,-128,127) Reason: 0x1 for slot id: 1
2020/06/26 15:44:08.640828 {wncd_x_R0-0}{1}: [rrm-client-dca] [9853]: (info): f4bd.9e38.4200 (Radio: 802.11bg) Channel set request: on cell to channel 6 from 1 (width 20) to reduce co-channel interference (noise/interference/rssi) from (-77,-35,-35) to (-66,-58,-57) Reason: 0x4 for slot id: 0
2020/06/26 15:54:18.671638 {wncd_x_R0-0}{1}: [rrm-client-dca] [9853]: (info): f4bd.9e38.4200 (Radio: 802.11a) Channel set request: on cell to channel 40 from 40 (width 20) to reduce co-channel interference (noise/interference/rssi) from (-128,-128,127) to (-128,-128,127) Reason: 0x1 for slot id: 1
2020/06/26 15:54:18.673055 {wncd_x_R0-0}{1}: [rrm-client-dca] [9853]: (info): f4bd.9e38.4200 (Radio: 802.11bg) Channel set request: on cell to channel 6 from 6 (width 20) to reduce co-channel interference (noise/interference/rssi) from (-128,-128,-58) to (-128,-128,-58) Reason: 0x1 for slot id: 0
algoritmo DCA em execução
9800-17#show logging profile wireless start last boot | i Running DCA Algo
2020/02/14 16:23:09.177 {rrm_bg_R0-0}{1}: [rrm-mgr-dca] [22117]: (note): (Radio: 802.11a) Running DCA Algorithm
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