RCNP04-路由信息協(xié)議RIP

路由信息協(xié)議RIP議程動態(tài)路由:距離向量路由環(huán)路及其消除方法有類路由協(xié)議和無類路由協(xié)議配置RIPV1和RIPV2在NBMA網絡中運行距離向量距離向量工作特點:定期向鄰居路由器發(fā)送路由表的副本并且計算距離向量

距離:度量值

向量:方向RIP(路由信息協(xié)議)

RIPV1發(fā)送地址:255.255.255.255(本地播送)

RIPV2發(fā)送地址:224.0.0.9(所有的RIPV2路由器)

RIP使用UDP協(xié)議520端口發(fā)送路由信息B-F算法ABCE0S0S0S1S0E0S0E0S0S01200E0S0S0S01200S0S1S1S01100以時間驅動AB更新路由表網絡拓撲

結構

發(fā)生改變等待下一個發(fā)送

周期通告更新后

全部的路由表

更新路由表議程動態(tài)路由:距離向量路由環(huán)路及其消除方法有類路由協(xié)議和無類路由協(xié)議配置RIPV1和RIPV2在NBMA網絡中運行距離向量路由環(huán)路ABCE0S0S0S1S0E0XS0E0S0S0120DownE0S0S0S01200S0S1S1S01100路由環(huán)路ABCE0S0S0S1S0E0X10.3.0.0S0S0S0S01210.1.0.010.2.0.010.4.0.00210.1.0.0E0S0S0S01210.4.0.010.3.0.010.2.0.00010.2.0.0S0S1S1S11110.1.0.010.4.0.010.3.0.000路由環(huán)路ABCE0S0S0S1S0E0XS0S0S0S01210.3.0.010.1.0.010.2.0.010.4.0.002E0S0S0S01410.1.0.010.4.0.010.3.0.010.2.0.000S0S1S1S03110.2.0.010.1.0.010.4.0.010.3.0.000路由環(huán)路ABCE0S0S0S1S0E0XS0S0S0S01204E0S0S0S01610.1.0.010.4.0.010.3.0.010.2.0.000S0S1S1S05110.2.0.010.1.0.010.4.0.010.3.0.000定義最大值為15ABCE0S0S0S1S0E0X10.3.0.0S0S0S0S01210.1.0.010.2.0.010.4.0.0016E0S0S0S011610.1.0.010.4.0.010.3.0.010.2.0.000S0S1S1S016110.2.0.010.1.0.010.4.0.010.3.0.000解決路由環(huán)路的方法:水平分割ABCE0S0S0S1S0E0XXX10.3.0.0S0S0S0S01210.1.0.010.2.0.010.4.0.000E0S0S0S01210.1.0.010.4.0.010.3.0.010.2.0.000S0S1S1E11210.2.0.010.1.0.010.4.0.010.3.0.000解決收斂問題:路由毒化ABCE0S0S0S1S0E0X10.3.0.0S0S0S0S01210.1.0.010.2.0.010.4.0.00

1610.1.0.0E0S0S0S01210.4.0.010.3.0.010.2.0.00010.2.0.0S0S1S1E11210.1.0.010.4.0.010.3.0.000Subnet10.4.0.0metric16確認收斂:逆向毒化ABCE0S0S0S1S0E0X10.3.0.0S0S0S0S01210.1.0.010.2.0.010.4.0.00

1610.1.0.0E0S0S0S01210.4.0.010.3.0.010.2.0.00010.2.0.0S0S1S1E1Possibly

Down210.1.0.010.4.0.010.3.0.000Subnet10.4.0.0metric16Hold-down倒記時等待網絡中其它路由器收斂,在該時間內不學習任何與該網絡相關的路由信息(RIP缺省180秒),在倒記時其間繼續(xù)向其它路由器發(fā)送毒化信息ABCE0S0S0S1S0E0Xhold-down倒記時以后更新路由表hold-down倒記時以后更新路由表觸發(fā)更新得知網絡拓撲結構發(fā)生改變,不等待發(fā)送周期,立刻通告更新后全部的路由表ABCE0S0S0S1S0E0X

subnet10.4.0.0,

metric16

subnet10.4.0.0,

metric16

subnet10.4.0.0,

metric16議程動態(tài)路由:距離向量路由環(huán)路及其消除方法有類路由協(xié)議和無類路由協(xié)議配置RIPV1和RIPV2在NBMA網絡中運行距離向量有類路由協(xié)議的工作特點有類路由協(xié)議的工作特點ABC有類路由協(xié)議的工作特點192.168.5.129/27192.168.5.98/27192.168.5.33/27192.168.5.65/27192.168.5.97/27S1S0E1E0E0無類路由協(xié)議的工作特點無類路由協(xié)議的工作特點ABC無類路由協(xié)議的工作特點192.168.5.129/27192.168.5.209/30192.168.5.33/27192.168.5.65/27192.168.5.210/30S1S0E1E0E0議程動態(tài)路由:距離向量路由環(huán)路及其消除方法有類路由協(xié)議和無類路由協(xié)議配置RIPV1和RIPV2在NBMA網絡中運行距離向量配置RIPV11.啟用RIP進程

router(config)#routerrip

router(config-router)#2.配置network命令

router(config-router)#network<主類網絡號>

含義:1.公布屬于該主類的子網

2.包含在該主類內的接口發(fā)送接收路由信息3.配置均衡負載(代價相等)

router(config-router)#maximum-paths<1-6>

缺省為“4”4.配置RIP發(fā)布初始度量值

router(config-router)#default-metric<1-4294967295>

缺省為“5”

建議設置為“1”配置RIPV21.啟用RIPV2進程

router(config)#routerrip

router(config-router)#version22.在主類邊界關閉自動匯總

router(config-router)#noauto-summaryRIP的調試驗證RIP的配置

router#showipprotocols顯示路由表的信息

router#showiproute去除IP路由表的信息

router#cleariproute*在控制臺顯示RIP的工作狀態(tài)

router#debugiprip議程動態(tài)路由:距離向量路由環(huán)路及其消除方法有類路由協(xié)議和無類路由協(xié)議配置RIPV1和RIPV2在NBMA網絡中運行距離向量幀中繼網絡拓撲結構星形完全網狀局部網狀路由的可達性路由更新ACB231BCDA將物理接口劃分子接口S0物理接口S0.1S0.2S0.3配置F-R點對點子接口interfaceSerial0noipaddressencapsulationframe-relayinterfaceSerial0.2point-to-pointipframe-relayinterface-dlci110interfaceSerial0.3point-to-pointipframe-relayinterface-dlci120A10.17.0.1

s0.2Bs0.3CDLCI=110DLCI=120配置F-R點對多點子接口interfaceSerial2noipaddressencapsulationframe-relayinterfaceSerial2.2multipointi