思科HSRP的配置方案雙機(jī)熱備經(jīng)典案例.

1、提問(wèn)當(dāng)主用路由器當(dāng)?shù)粢院髠浞萋酚善骺梢越庸苤饔寐酚善鞯腎P地址和MAC地址回答RouterlRouter1#c on figuretermi nalRouter1(co nfig)#i nterfaceFastEthernet 0/1Router1(co nfig-if)#ip address 172.22.1.3255.255.255.0Router1(co nfig-if)#sta ndby1 ip 172.22.1.1Router1(co nfig-if)#sta ndby1 priority 120Router1(co nfig-if)#exitRouter1(co nfig)#e n

2、dRouter1#Router2 :Router2#c on figuretermi nalRouter2(co nfig)#i nterfaceFastEthernet 1/0Router2(co nfig-if)#ip address 172.22.1.2255.255.255.0Router2(co nfig-if)#sta ndby1 ip 172.22.1.1Router2(config-if)#standby1 priority 110 (默認(rèn) priority is 100)Router2(co nfig-if)#exitRouter2(co nfig)#e ndRouter2#

3、 feedo 注釋 由于HSRP虛擬出來(lái)的MAC地址跟組相關(guān)，所以可能會(huì)出現(xiàn)同一交換機(jī)收到多個(gè)相同的 MAC地址的情況，這時(shí)候就需要用 standby1 mac-address 0000.0c07.ad01命令來(lái)人工指定一個(gè) MAC地址提問(wèn) 強(qiáng)制某個(gè)路由器啟動(dòng)后一直在組中處于主用狀態(tài)回答Router1#c on figuretermi nalFastEthernet 0/11 ip 172.22.1.11 priority 1201 preemptRouter2(co nfig)#i nterfaceRouter2(co nfig-if)#sta ndbyRouter2(co nfig-if)

4、#sta ndbyRouter2(co nfig-if)#sta ndbyRouter2(co nfig-if)#exitFastEthernet 1/01 ip 172.22.1.11 priority 1101 preemptdelay 60 （最好有時(shí)延）Router1(co nfig)#i nterfaceRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#exitRouter1(co nfig)#e ndRouter1#Route

5、r2#c on figureterm inalRouter2(co nfig)#e nd注釋 正常情況下當(dāng)LAN端口 up后就會(huì)發(fā)生強(qiáng)占，而此時(shí)可能網(wǎng)絡(luò)還沒(méi)有收斂, 所以建議配置強(qiáng)占延遲時(shí)間，讓路由器啟動(dòng)后過(guò)一段時(shí)間再發(fā)起強(qiáng)占 sta ndby1 preempt delay 6022.3. 配置HSRP對(duì)接口問(wèn)題追蹤的支持提問(wèn) 當(dāng)主用路由器的上聯(lián)端口出現(xiàn)問(wèn)題后主動(dòng)切換到備用路由器回答Router1#c on figuretermi nalFastEthernetO/11 ip 172.22.1.11 priority 1201 preemptRouter1(co nfig)#i nterfac

6、eRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#exitRouter1(co nfig)#e nd從12.2(15)T后引入更多可追蹤實(shí)例 Router1#c on figuretermi nalRouter1(co nfig)#track11Router1(co nfig-track)#exitRouter1(co nfig)#i nterfaceRouter1(co nfig-if)#sta ndbyRouter1(co nfig

7、-if)#sta ndbyRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#sta ndbyRouter1(c on fig-if)#e nd注釋 Router1#show trackin terfaceSerial1/1 ip rout ingFastEthernetO/O1 ip 172.22.1.11 priority 1201 preempt1 track 11 decreme nt 50Track 11In terfaceSerial1/1 ip rout ingIP routingis Down (hw admin-down,ip di

8、sabled)1 change,last change 00:12:48Tracked by:HSRP FastEthernet0/0 122.4. HSRP負(fù)載均衡提問(wèn) 在兩臺(tái)或者多臺(tái)HSRP路由器上實(shí)現(xiàn)流量的負(fù)載均衡回答Router1#c on figuretermi nalRouter1(co nfig)#i nterfaceFastEthernetO/1Router1(c on fig-if)#ipaddress 172.22.1.3255.255.255.0Router1(co nfig-if)#sta ndby1 ip 172.22.1.1Router1(co nfig-if)#s

9、ta ndby1 priority 120Router1(co nfig-if)#sta ndby1 preemptRouter1(co nfig-if)#sta ndby2 ip 172.22.1.2Router1(co nfig-if)#sta ndby2 priority 110Router1(co nfig-if)#sta ndby2 preemptRouter1(co nfig-if)#exitRouter1(co nfig)#e ndRouter2#c on figuretermi nalRouter2(co nfig)#i nterfaceFastEthernet1/0Route

10、r2(co nfig-if)#ipaddress 172.22.1.4255.255.255.0Router2(co nfig-if)#sta ndby1 ip 172.22.1.1Router2(co nfig-if)#sta ndby1 priority 110Router2(co nfig-if)#sta ndby1 preemptRouter2(co nfig-if)#sta ndby2 ip 172.22.1.2Router2(co nfig-if)#sta ndby2 priority 120Router2(co nfig-if)#sta ndby2 preemptRouter2(

11、co nfig-if)#exitRouter2(co nfig)#e nd注釋 由于出現(xiàn)兩個(gè)網(wǎng)關(guān)，所以需要在終端設(shè)備上分開(kāi)配置各自的缺省網(wǎng)關(guān)22.5. HSRP 中 ICMP 重定向提問(wèn)在HSRP中啟用ICMP重定向Router2#c on figuretermi nalRouter2(config-if)#noip redirectsRouter2(co nfig-if)#sta ndbyredirects disableRouter2(co nfig-if)#exitRouter2(co nfig)#e ndRouter2#54n 注釋226 調(diào)整HSRP定時(shí)器提問(wèn) 調(diào)整備份路由器接管主用

12、路由器所需時(shí)長(zhǎng)Router1#c on figuretermi nalFastEthernetO/11 ip 172.22.1.11 priority 1201 preempt1 timers 1 3Router1(co nfig)#i nterfaceRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#exitRouter1(co nfig)#e ndRouter1#注釋 缺省Hel

13、lo包時(shí)長(zhǎng)為3秒，10秒后會(huì)接管，如果主用路由器調(diào)整時(shí)長(zhǎng)， 整個(gè)組內(nèi)的路由器都要調(diào)整為相同的時(shí)長(zhǎng)。最短可以到達(dá)毫秒Router1(co nfig-if)#standby 1 timers msec 100 msec 300Router1#c on figuretermi nalRouter1(co nfig)#i nterfaceToke nring0Router1(co nfig-if)#ipaddress 172.22.1.3ip 172.22.1.1use-biapriority 120Router1(co nfig-if)#sta ndbyRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#sta ndbyRouter1(co nfig-if)#sta ndbypreemptRouter1(co nfig-if)#exitRouter1(co nfig)#e ndRouter2#c on figuretermi nalRouter2(co nfig)#i nterfaceToke nringORouter2(co nfig-if)#ipaddress 172.22.1.2Router2(co nfig-if)#sta ndbyRouter2(co nfig-if)#