热备份路由选择协议

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1、HSRP（两朵云都代表外网,用了三个vian）C2192.168.1.88192.168.2.88192.168.3.88虚报路由器R1:envlandatabasevlan10vlan20vlan30exitconftinterfacerangef0/0-3switchporttrunkencapsulationdotlqswmtintvlan10ipadd192.168.1.1255.255.255.0noshstandby10priority200（vlan10的接口优先级为200,取值范围是0-255,默认值是10

2、0）standby10ip192.168.1.88（虚拟路由器的vlan10的ip地址）standbypreempt（配置了这个命令后，优先级高的端口将变成活跃状态）standby10trackfO/1560（端口跟踪，现在跟踪的是f0/15,如果它的状态变为down,它的优先级别将会减60,其他路由器就接替其成为活跃路由器）exitintvlan20ipadd192.168.2.1255.255.255.0noshstandby20priority150（值越小，优先级越小）standby20ip192.168.2.88

3、standby20preemptexitintvlan30ipadd192.168.3.1255.255.255.0noshstandby30priority200standby30ip192.1683.88standbypreemptstandby30trackfO/1560exitintfO/15noswipadd192.16&4.1255.255.255.0noshendR2:envlandatabasevlan10vlan20vlan30exitconftinterfacerangef0/3-3switchport

4、trunkencapsulationdotlqswmtintvlan10ipadd192.168.1.2255.255.255.0noshstandby10priority150standby10ip192.168.1.88standby10preemptexitintvlan20ipadd192.168.2.2255.255.255.0noshstandby20priority200standby20ip192.168.2.88standby20preemptstandby20trackf0/1560exitintvla

5、n30ipadd192.168.3.2255.255.255.0noshstandby30priority150standby30ip192.168.3.88standby30preemptexitintfO/15noswipadd192.168.4.2255.255.255.0noshendR3:envlandatabasevlan10vlan20vlan30exitconftintrangef0/0-2switchporttrunkencapsulationdotlqswmtEndR4:envlandatabasevl

6、an10vlan20vlan30exitconftintrangef0/0-3switchporttrunkencapsulationdotlqswmtEndR5:envlandatabasevlan10vlan20vlan30exitconftintrangef0/0-2switchporttrunkencapsulationdotlqswmtend元成效果：查看的命令：showstandby(只能在R1和R2上查看)R1：(可以看至！JvlanlO是Active,vlan20是Standby,vlan30是Active

7、)Rl#showstandbyVlanlO一Group10StateisActive2statechanges^laststatechange00：05：16VirtualIPaddressis192♦168♦1^88ActivevirtualMACaddressis0000^0c07^ac0aLocalvirtualMACaddressis0000^0c07^ac0a

8、edActiverouislocalStandbyrouteris192♦168♦1^2^priority150(expiresin7^888sec)Priority200(configured200)TrackinterfaceFastEthernetO/15stateUpdecrement60IPr