思科交换机配置维护手册
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思科交换机配置维护手册
目录
一、端口配置
1.1 配置一组端口
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
以下的例子显示使用句号来配置不同类型端口的组:
Switch# configure terminal
Switch(config)# interface range fastethernet0/1 - 3, gigabitethernet0/1 - 2 Switch(config-if-range)# no shutdown
1.2 配置二层端口
1.2.1 配置端口速率及双工模式
Switch# configure terminal
Switch(config)# interface fastethernet0/3 Switch(config-if)# speed 10
Switch(config-if)# duplex half
1.2.2 端口描述
1.2.3 配置三层口
Catalyst 3750支持三种类型的三层端口: •SVIs: 即interface vlan
•三层以太网通道口（EtherChannel）
•.路由口：路由口是指某一物理端口在端口配置状态下用no switchport命令生成的端口
所有的三层都需要IP地址以实现路由交换
配置步骤如下：
配置举例如下：
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# interface gigabitethernet0/2
Switch(config-if)# no switchport
Switch(config-if)# ip address 192.20.135.21 255.255.255.0 Switch(config-if)# no shutdown
Switch(config-if)# end
show ip interface命令:
Switch# show ip interface gigabitethernet0/2 GigabitEthernet0/2 is up, line protocol is up
Internet address is 192.20.135.21/24
Broadcast address is 255.255.255.255
Address determined by setup command
MTU is 1500 bytes
Helper address is not set
Directed broadcast forwarding is disabled
1.3 监控及维护端口
1.3.1 监控端口和控制器的状态
主要命令见下表：
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
Protected: false
Unknown unicast blocked: disabled