3750交换机交换机配置

当使用interface range命令时有如下的规则:

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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

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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。

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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

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

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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

配置二层端口

3750的所有端口缺省的端口都是二层口，如果此端口已经配置成三层端口的话，则需要用switchport来使其成为二层端口。

配置端口速率及双工模式

可以配置快速以太口的速率为10/100Mbps及千兆以太口的速率为

10/100/1000-Mbps; 但对于GBIC端口则不能配置速率及双工模式，有时可以配置nonegotiate,当需要联接不支持自适应的其它千兆端口时 命令 目的 Step 1 configure terminal Step 2 interface 进入配置状态. 进入端口配置状态. interface-id Step 3 speed {10 | 100 | 1000 | auto | nonegotiate} 设置端口速率 注 1000 只工作在千兆口. GBIC模块只工作在1000 Mbps下. nonegotiate 只网址导航 http://utiao.net

能在这些GBIC上用 1000BASE-SX, -LX, and -ZX GBIC. Step 4 duplex {auto | full | half} Step 5 end Step 6 show interfaces interface-id Step 7 copy running-config startup-config

Switch# configure terminal

Switch(config)# interface fastethernet0/3

Switch(config-if)# speed 10

Switch(config-if)# duplex half

设置全双工或半双工. 退出 显示有关配置情况 保存 端口描述

命令 目的 Step 1 configure terminal Step 2 interface interface-id Step 3 description string 进入配置模式 进入要加入描述的端口 加入描述 (最多240个字符). 退回. 验证. Step 4 end Step 5 show interfaces interface-id 网址导航 http://utiao.net

description or show running-config Step 6 copy running-config startup-config

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

保存 配置三层口

Catalyst 3750支持三种类型的三层端口:

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SVIs: 即interface vlan

Note 当生成一个interface Vlan时，只有当把某一物理端口分配给它时才

能被激活

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