當使用interface range命令時有如下的規則: · 有效的組范圍: o vlan從1 到4094 o fastethernet 槽位/{first port} - {last port}, 槽位為0 o gigabitethernet槽位/{first port} - {last port},槽位為0 o port-channel port-channel-number - port-channel-number, port-channel號從1到64 · 端口號之間需要加入空格,如:interface range fastethernet 0/1 – 5 是有效的,而interface range fastethernet 0/1-5 是無效的. · interface range 命令只能配置已經存在的interface vlan · 所有在同一組的端口必須是相同類別的。 見以下例子: Switch# configure terminal
Switch(config)# interface range fastethernet0/1 - 5
Switch(config-if-range)# no shutdown Switch(config-if-range)# *Oct 6 08:24:35: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up *Oct 6 08:24:35: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up *Oct 6 08:24:35: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to up *Oct 6 08:24:35: %LINK-3-UPDOWN: Interface FastEthernet0/4, changed state to up *Oct 6 08:24:35: %LINK-3-UPDOWN: Interface FastEthernet0/5, changed state to up *Oct 6 08:24:36: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/05, changed state to up *Oct 6 08:24:36: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up *Oct 6 08:24:36: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/4, changed state to up
Switch(config)# interface range fastethernet0/1 - 3, gigabitethernet0/1 - 2
Switch(config-if-range)# no shutdown Switch(config-if-range)# *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface FastEthernet0/3, changed state to up *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up *Oct 6 08:29:28: %LINK-3-UPDOWN: Interface GigabitEthernet0/2, changed state to up *Oct 6 08:29:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/ 1, changed state to up *Oct 6 08:29:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/ 2, changed state to up *Oct 6 08:29:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/ 3, changed state to up
Use the no description interface configuration command to delete the description. This example shows how to add a description on Fast Ethernet interface 0/4 and to verify the description: Switch# config terminal
Enter configuration commands, one per line. End with CNTL/Z. Switch(config)# interface fastethernet0/4
Switch(config-if)# description Connects to Marketing
Switch(config-if)# end
Switch# show interfaces fastethernet0/4 description
Interface Status Protocol Description Fa0/4 up down Connects to Marketing 監控及維護端口 監控端口和控制器的狀態 主要命令見下表: Show Commands for Interfaces Command 目的 show interfaces [interface-id] 顯示所有端口或某一端口的狀態和配置. show interfaces interface-id status [err-disabled] 顯示一系列端口的狀態或錯誤-關閉的狀態 show interfaces [interface-id] switchport 顯示二層端口的狀態,可以用來決定此口是否為二層或三層口。 show interfaces [interface-id] description 顯示端口描述 show running-config interface [interface-id] 顯示當前配置中的端口配置情況 show version 顯示軟硬件等情況
舉例如下: Switch# show interfaces status
Port Name Status Vlan Duplex Speed Type Gi0/1 connected routed a-full a-100 10/100/1000Base TX Gi0/2 wce server 20.20.2 disabled routed auto auto 10/100/1000Base TX Gi0/3 ip wccp web-cache notconnect routed auto auto 10/100/1000Base TX Gi0/4 notconnect routed auto auto 10/100/1000Base TX Gi0/5 notconnect routed auto auto 10/100/1000Base TX Gi0/6 disabled routed auto auto 10/100/1000Base TX Gi0/7 disabled routed auto auto 10/100/1000Base TX Gi0/8 disabled routed auto 100 10/100/1000Base TX Gi0/9 notconnect routed auto auto 10/100/1000Base TX Gi0/10 notconnect routed auto auto 10/100/1000Base TX Gi0/11 disabled routed auto auto unknown Gi0/12 notconnect routed auto auto unknown
Switch# show interfaces fastethernet 0/1 switchport
Name: Fa0/1 Switchport: Enabled Administrative Mode: static access Operational Mode: down Administrative Trunking Encapsulation: dot1q Negotiation of Trunking: Off Access Mode VLAN: 1 (default) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001
使用 no shutdown 命令重新打開端口. 舉例如下: Switch# configure terminal
Switch(config)# interface fastethernet0/5 Switch(config-if)# shutdown Switch(config-if)# *Sep 30 08:33:47: %LINK-5-CHANGED: Interface FastEthernet0/5, changed state to a administratively down
Switch# configure terminal
Switch(config)# interface fastethernet0/5 Switch(config-if)# no shutdown Switch(config-if)# *Sep 30 08:36:00: %LINK-3-UPDOWN: Interface FastEthernet0/5, changed state to up
使用 default interface interface-id 還原到缺省配置狀態。 舉例如下: Switch# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch(config)# interface fastethernet0/1