RIP實(shí)現(xiàn)等開銷負(fù)載均衡

1、RIP實(shí)現(xiàn)等開銷負(fù)載均衡RIP的等幵銷負(fù)載均衡實(shí)驗(yàn)說明：通過使用debug命令基于每個(gè)分組和每個(gè)目的地來考察等開銷負(fù) 載均衡。實(shí)驗(yàn)配置：r1#sh runin terface Ether netOip address 10.0.0.1 255.255.255.0!in terface Serial。ip address 192.168.1.2 255.255.255.0!router ripnetwork 10.0.0.0 network 192.168.1.0*r2#sh runinterface Loopback0ip address 192.168.3.2 255.255.255.0 s

2、econdaryip address 192.168.3.1 255.255.255.0!interface Serial0ip address 192.168.1.1 255.255.255.0clockrate 64000!interface Serial1ip address 192.168.2.1 255.255.255.0clockrate 64000!router ripnetwork 192.168.1.0network 192.168.2.0network 192.168.3.0!*r3#sh runinterface Ethernet0ip address 10.0.0.2

3、255.255.255.0!interface Serial1ip address 192.168.2.2 255.255.255.0router ripnetwork 10.0.0.0network 192.168.2.0!* *r2#sh ip routeCodes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2

4、 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area* - candidate default, U - per-user static route, o - ODRP - periodic downloaded static routeGateway of last resort is not setR 10.0.0.0/

5、8 120/1 via 192.168.1.2, 00:00:23, Serial0120/1 via 192.168.2.2, 00:00:19, Serial1C 192.168.1.0/24 is directly connected, Serial0C 192.168.2.0/24 is directly connected, Serial1C 192.168.3.0/24 is directly connected, Loopback0*在R2的SO和S1上使用進(jìn)程交換方式r2(config)#int s0 r2(config)#no ip route-cache r2(config

6、)#int s1 r2(config)#no ip route-cacher2#sh ip int s0 Serial0 is up, line protocol is up Internet address is 192.168.1.1/24 Broadcast address is 255.255.255.255 Address determined by setup command MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is disabled Multicast reserved

7、 groups joined: 224.0.0.9 Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is disabled快速交換方式已經(jīng)關(guān)閉，現(xiàn)

8、在為進(jìn)程交換方式IP fast switching on the same interface is disabled IP Flow switching is disabledIP Null turbo vector IP multicast fast switching is disabled IP multicast distributed fast switching is disabledIP route-cache flags are NoneRouter Discovery is disabledIP output packet accounting is disabledIP

9、access violation accounting is disabledTCP/IP header compression is disabledRTP/IP header compression is disabledProbe proxy name replies are disabledPolicy routing is disabledNetwork address translation is disabledWCCP Redirect outbound is disabledWCCP Redirect exclude is disabledBGP Policy Mapping

10、 is disabled*檢驗(yàn)負(fù)載均衡的效果r2#debug ip packetr2#pingProtocol ip:Target IP address: 10.0.0.1Repeat count 5:Datagram size 100:Timeout in seconds 2:Extended commands n: ySource address or interface: 192.168.3.1Type of service 0:Set DF bit in IP header? no:Validate reply data? no:Data pattern 0xABCD:Loose, S

11、trict, Record, Timestamp, Verbosenone:Sweep range of sizes n:Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 10.0.0.1, timeout is 2 seconds: !Success rate is 100 percent (5/5), round-trip min/avg/max = 28/31/32 ms00:59:05: IP: s=192.168.3.1 (local), d=10.0.0.1 (Serial0), len 100, sen

12、ding00:59:05: IP: s=10.0.0.1 (Serial0), d=192.168.3.1, len 100, rcvd 400:59:05: IP: s=192.168.3.1 (local), d=10.0.0.1 (Serial1), len 100, sending00:59:05: IP: s=10.0.0.1 (Serial0), d=192.168.3.1, len 100, rcvd 400:59:05: IP: s=192.168.3.1 (local), d=10.0.0.1 (Serial0), len 100, sending00:59:05: IP:

13、s=10.0.0.1 (Serial0), d=192.168.3.1, len 100, rcvd 400:59:05: IP: s=192.168.3.1 (local), d=10.0.0.1 (Serial1), len 100, sending00:59:05: IP: s=10.0.0.1 (Serial0), d=192.168.3.1, len 100, rcvd 400:59:05: IP: s=192.168.3.1 (local), d=10.0.0.1 (Serial0), len 100, sending00:59:05: IP: s=10.0.0.1 (Serial

14、0), d=192.168.3.1, len 100, rcvd 4 經(jīng)過仔細(xì)的查找，終于找到了 ping 請求和應(yīng)答產(chǎn)生的 debug 信息。查找分組發(fā)送 時(shí)所經(jīng)過的接口，我們看到 R2的SO和S2被交替使用，可見RIP已經(jīng)實(shí)現(xiàn)負(fù)載均 衡。剛才我們注意到 ping 產(chǎn)生的 debug 信息和路由更新等產(chǎn)生的 debug 信息混雜 在一起，非常不利于我們的查看，要讓 debug 僅僅輸出 ping 產(chǎn)生的信息，就要使 用ACL匹配debug 一起使用。r2(config)#access-list 101 permit ICMP any 10.0.0.0 0.255.255.255 r2#deb

15、ug ip packet 101/ 只顯示匹配 ACL101 的 debug 信息r2#ping 10.0.0.1Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 10.0.0.1, timeout is 2 seconds: !Success rate is 100 percent (5/5), round-trip min/avg/max = 36/36/40 msr2#01:21:52: IP: s=192.168.2.1 (local), d=10.0.0.1 (Serial1), len 100,sendi

16、ng01:21:52: IP: s=192.168.1.1 (local), d=10.0.0.1 (Serial0), len 100,sending01:21:52: IP: s=192.168.2.1 (local), d=10.0.0.1 (Serial1), len 100,sending01:21:52: IP: s=192.168.1.1 (local), d=10.0.0.1 (Serial0), len 100,sending01:21:52: IP: s=192.168.2.1 (local), d=10.0.0.1 (Serial1), len 100,sending可以看到現(xiàn)在debug信息只會(huì)顯示Ping所產(chǎn)生的信息，并且目的地為10.0.0.0 的 ping 命令。*以上驗(yàn)證了基于分組的負(fù)載均衡(在SO和S1上啟用進(jìn)程交換方式，強(qiáng)制路由器為每一個(gè)要進(jìn)行的分組在