用Cisco-Packet-Tracer测试链路聚合.docx

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1、背景：机房三层交换机到弱电间接入层交换机通过光纤连接，某日突然发现接入交换机网络不通，经过现场检查发现光口灯不亮。用红光笔测试发现光纤链路故障。方案一：重新从机房到弱电间拉一根光纤成本较高方案二：从弱电间的另外一个交换机接光纤到故障交换机成本较高，需要增加光模块方案三：从弱电间的另外交换机接一根网线到故障交换机成本基本可以忽略方案四：从弱电间的另外交换机接两根网线到故障交换机，做链路聚合成本可以忽略从以上四个方案，我们选择了方案四，拓扑如下三层交换机：配置dchpserver配置部门所在的VLAN配置trunk配置vtpserver和domai

2、n、password7503#shrunBuildingconfiguration...Currentconfiguration:1532bytes!version16.3.2noservicetimestampslogdatetimemsecnoservicetimestampsdebugdatetimemsecnoservicepassword-encryption!hostname7503!!!!ipdhcppoolzhaoshangnetwork10.64.42.0255.255.255.0default-router10.64.42.

3、254dns-server10.64.25.1!!!noipcefnoipv6cef!!!!!!!!!!!!!spanning-treemodepvst!!!!!!interfaceGigabitEthernet1/0/1!interfaceGigabitEthernet1/0/2!interfaceGigabitEthernet1/0/3!interfaceGigabitEthernet1/0/4!interfaceGigabitEthernet1/0/5!interfaceGigabitEthernet1/0/6!interfaceGiga

4、bitEthernet1/0/7!interfaceGigabitEthernet1/0/8!interfaceGigabitEthernet1/0/9!interfaceGigabitEthernet1/0/10!interfaceGigabitEthernet1/0/11!interfaceGigabitEthernet1/0/12!interfaceGigabitEthernet1/0/13!interfaceGigabitEthernet1/0/14!interfaceGigabitEthernet1/0/15!interfaceGig

5、abitEthernet1/0/16!interfaceGigabitEthernet1/0/17!interfaceGigabitEthernet1/0/18!interfaceGigabitEthernet1/0/19!interfaceGigabitEthernet1/0/20!interfaceGigabitEthernet1/0/21!interfaceGigabitEthernet1/0/22!interfaceGigabitEthernet1/0/23!interfaceGigabitEthernet1/0/24!interfac

6、eGigabitEthernet1/1/1!interfaceGigabitEthernet1/1/2!interfaceGigabitEthernet1/1/3!interfaceGigabitEthernet1/1/4!interfaceVlan1noipaddressshutdown!interfaceVlan42mac-address0002.17e5.5501ipaddress10.64.42.254255.255.255.0!ipclassless!ipflow-exportversion9!!!!!!!linecon0!linea

7、ux0!linevty04login!!!endS1交换机：配置fa0/1和fa0/2的端口汇聚配置汇聚端口的trunk配置vtpclient和password、domains1#shrunBuildingconfiguration...Currentconfiguration:1267bytes!version12.1noservicetimestampslogdatetimemsecnoservicetimestampsdebugdatetimemsecnoservicepassword-encryption!hostnames1!!!!!

8、spanning-treemodepvstspanning-treeextendsystem-id!interfacePort-channel1swi