浮动静态路由实验

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1、浮动静态路由（SLA）V0.12012-9-3AuthorPHONELastUpdateTELOrganization1拓扑与需求21.1 网络拓扑21.2 需求概述32实现机制32.1设计原理错误！未定义书签。2.2关键配置42.2.1 R1 配置42.3 信息查看错误！未定义书签。2.3.1 R1上路由信息、43附件错误！未定义书签。3.1 配置文件51拓扑与需求1.1网络拓扑卜1.2需求概述1、PC1与PC2之间进行互访，使用静态路由实现2、PC1流量去往PC2时，以R1-SW1-R2作为主链路，R1-SW2-R2作为备份链路3、PC2流量去往PC1时，以R2-SW2-R1作为主链路，R

2、2-SW1-R1作为备份链路4、利用SLA实现主备路由之间的切换。2配置与实现2.1实现原理1、修改路由条目的AD值形成浮动备份2、通过SLA实现吓一跳地址的实时检测，以便于切换（SPOTO,我们共创未来Service Professional Outstanding TeamworkObtain2.2关键配置1 R1配置ip sla monitor 1创建服务条目type echo protocol ipIcmpEcho 10.1.12.2 source-ipaddr 10.1.12.1/设置监测ICPM echo监测路由条目的下一跳IP数据包离开路由器的出接口IP地址 timeout 10

3、0/设置超时时间为100msfrequency 2设置频率为2 （2s 一个包）ip sla monitor schedule 1 life forever start-time now设置SLA的启动时间为马上，有效期为永远track 10 rtr 10 reachability/和track条目和响应条目关联，track关心可达性ip route 10.1.2.0 255.255.255.0 10.1.12.2 track 1ip route 10.1.2.0 255.255.255.0 10.1.21.2 102.3实验结果1 R1上路由信息R1#show ip routeCodes:

4、C - connected, S - static, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter areaN1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2E1 - OSPF external type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2

5、 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set10.0.0.0/24 is subnetted, 4 subnetsC 10.1.12.0 is directly connected, FastEthernet1/0S10.1.2.0 1/0 via 10.1.12.2C10.1.1.0 is directly connected, Fast

6、Ethernet0/0C 10.1.21.0 is directly connected, FastEthernet2/0随后断开SW1的接口，查看发生的变化R1#show ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGPD - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF externa

7、l type 1, E2 - OSPF external type 2i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, * - candidate default, U - per-user static route o - ODR, P - periodic downloaded static routeGateway of last resort is not set10.0.0.0/24 is subnetted, 4 subnetsC 10.1.12.0 is directly connected, FastEthernet1/0S 10.1.2.0 10/0 via 10.1.21.2/ 路由往 SW2 方向跳转C 10.1.1.0 is directly connected, FastEthernet0/0 C 10.1.21.0 is directly connected, FastEthernet2/02.4配置文件R1R2国Rl.cfgR2.cfg