Introduction
Este documento é um guia de referência rápida sobre a listagem de eventos históricos de vários tipos com o Catalyst 9800. Ao aproveitar os recursos de registro sempre ativos da plataforma 9800, você pode listar eventos de um tipo específico de forma rápida e fácil, desde que saiba como são as linhas de registro específicas.
Estrutura
Este artigo trata do uso do comando "show logging profile wireless", que passa principalmente por todos os logs binários relacionados à conexão sem fio (que estão sempre ligados, mesmo sem habilitar qualquer forma de depuração ativa).
O "start last <time period>" permite voltar até um certo período nos registros.
O comando produzirá muitos dados no terminal se você não usar o pipe para restringir sua pesquisa, é por isso que todos os exemplos abaixo usam o pipe com eventos específicos.
Cliente
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
A seguir, seria necessário definir "set platform software trace wireless chassis ative r0 rrm rm-client-dca info" para exibir as informações nos registros:
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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