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发表于 2006-08-14 15:57:05 楼主 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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3550EMI是支持二层、三层功能(EMI)的交换机 支持VLAN
安全
3层支持(需要多层交换的IOS)
监视
其它功能: 支持以下的GBIC模块: · 1000bbse-T GBIC: 铜线最长100 m · 1000bbse-SX GBIC: 光纤最长1804 feet (550 m) · 1000bbse-LX/LH GBIC: 光纤最长32,808 feet (6 miles or 10 km) · 1000bbse-ZX GBIC: 光纤最长328,084 feet (62 miles or 100 km) 配置端口配置一组端口
当使用interface range命令时有如下的规则:
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
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3550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
Switch# configure terminal
Switch(config)# interface fastethernet0/3
Switch(config-if)# speed 10
Switch(config-if)# duplex half
端口描述
Use the no descripqion interface configuration command to delete the descripqion. This example shows how to add a descripqion on Fast Ethernet interface 0/4 and to verify the descripqion: Switch# config terminal
Enter configuration commands, one per line. End with CNTL/Z. Switch(config)# interface fastethernet0/4
Switch(config-if)# descripqion Connects to Marketing
Switch(config-if)# end
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