当使用interface range命令时有如下的规则: · 有效的组范围: o vlan从1 到4094 o fastethernet 槽位/{first port} - {last port}, 槽位为0 o gigabitethernet槽位/{first port} - {last port},槽位为0 o port-channel port-channel-number - port-channel-number, port-channel号从1到64 · 端口号之间需要加入空格,如:interface range fastethernet 0/1 – 5 是有效的,而interface range fastethernet 0/1-5 是无效的. · interface range 命令只能配置已经存在的interface vlan · 所有在同一组的端口必须是相同类别的。 见以下例子: 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 监控及维护端口 监控端口和控制器的状态 主要命令见下表: Show Commands for Interfaces Command 目的 show interfaces [interface-id] 显示所有端口或某一端口的状态和配置. show interfaces interface-id status [err-disabled] 显示一系列端口的状态或错误-关闭的状态 show interfaces [interface-id] switchport 显示二层端口的状态,可以用来决定此口是否为二层或三层口。 show interfaces [interface-id] description 显示端口描述 show running-config interface [interface-id] 显示当前配置中的端口配置情况 show version 显示软硬件等情况
举例如下: 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 命令重新打开端口. 举例如下: 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 还原到缺省配置状态。 举例如下: Switch# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch(config)# interface fastethernet0/1