Диагностика подключения между коммутатором и сервером

Создана 03.02.2026
Отредактирована 03.02.2026

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Admin сообщает: Привет! Со стороны сервера вижу, что сетевой интерфейс работает только 100 Мбит. Хотя должно работать на 1Гбит'е Принудительное включение гигабита на сетевой карте не помогает. Патч-корд переобжали, тоже не помогло!
Посмотрите, пожалуйста, всё ли в норме на стороне коммутатора?

Network administrator начинает проверять со своей стороны, используя следующие команды:

sw1# show logging logfile | grep "2026 Feb 3" | grep Ethernet1/5 2026 Feb 3 09:27:43.549 sw1 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet1/5 is down (Link failure) 2026 Feb 3 09:27:47.990 sw1 %ETHPORT-5-SPEED: Interface Ethernet1/5, operational speed changed to 100 Mbps 2026 Feb 3 09:27:47.990 sw1 %ETHPORT-5-IF_DUPLEX: Interface Ethernet1/5, operational duplex mode changed to Full 2026 Feb 3 09:27:47.990 sw1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/5, operational Receive Flow Control state changed to off 2026 Feb 3 09:27:47.990 sw1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/5, operational Transmit Flow Control state changed to off 2026 Feb 3 09:27:48.043 sw1 %ETHPORT-5-IF_UP: Interface Ethernet1/5 is up in mode access 2026 Feb 3 09:27:52.111 sw1 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet1/5 is down (Link failure) 2026 Feb 3 09:27:56.553 sw1 %ETHPORT-5-SPEED: Interface Ethernet1/5, operational speed changed to 100 Mbps 2026 Feb 3 09:27:56.554 sw1 %ETHPORT-5-IF_DUPLEX: Interface Ethernet1/5, operational duplex mode changed to Full 2026 Feb 3 09:27:56.554 sw1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/5, operational Receive Flow Control state changed to off 2026 Feb 3 09:27:56.554 sw1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/5, operational Transmit Flow Control state changed to off 2026 Feb 3 09:27:56.604 sw1 %ETHPORT-5-IF_UP: Interface Ethernet1/5 is up in mode access 2026 Feb 3 09:28:05.715 sw1 %ETHPORT-5-IF_DOWN_LINK_FAILURE: Interface Ethernet1/5 is down (Link failure) 2026 Feb 3 09:28:10.658 sw1 %ETHPORT-5-SPEED: Interface Ethernet1/5, operational speed changed to 1 Gbps 2026 Feb 3 09:28:10.658 sw1 %ETHPORT-5-IF_DUPLEX: Interface Ethernet1/5, operational duplex mode changed to Full 2026 Feb 3 09:28:10.658 sw1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/5, operational Receive Flow Control state changed to off 2026 Feb 3 09:28:10.658 sw1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/5, operational Transmit Flow Control state changed to off 2026 Feb 3 09:28:10.732 sw1 %ETHPORT-5-IF_UP: Interface Ethernet1/5 is up in mode access

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