使用EIGRP实现非等价负载均衡.docx-资料库

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EIGRP(2) 实验要求：实现非等价负载均衡。拓扑图如下：对 R1 的配置过程：对 R2 的配置

1 00:13:20.783: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up 1 00:13:21.783: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#int f0/0 R2(config-if)#ip add 12.1.1.2 255.255.255.0 R2(config-if)#no sh R2(config-if)#int *Mar *Mar changed state to up R2(config-if)#int f1/0 R2(config-if)#ip add 23.1.1.2 255.255.255.0 R2(config-if)#no sh R2(config-if)#int *Mar *Mar changed state to up R2(config-if)#int lo0 R2(config-if)#ip *Mar changed state to up R2(config-if)#ip add 2.2.2.2 255.255.255.255 R2(config-if)#no sh R2(config-if)#exit R2(config)#router eigrp 90 R2(config-router)#no au R2(config-router)#no auto-summary R2(config-router)#net 12.1.1.2 255.255.255.0 R2(config-router)# *Mar (FastEthernet0/0) is up: new adjacency R2(config-router)#net 23.1.1.2 255.255.255.0 R2(config-router)#no net 12.1.1.2 255.255.255.0 1 00:15:41.047: %DUAL-5-NBRCHANGE: 1 00:14:13.871: %LINK-3-UPDOWN: Interface FastEthernet1/0, changed state to up 1 00:14:14.871: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0, 1 00:14:20.547: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, IP-EIGRP(0) 90: Neighbor 12.1.1.1

IP-EIGRP(0) 90: Neighbor 12.1.1.1 IP-EIGRP(0) 90: Neighbor 12.1.1.1 1 00:30:32.131: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up 1 00:30:33.131: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, 1 00:31:21.975: %LINK-3-UPDOWN: Interface FastEthernet1/0, changed state to up 1 00:31:22.975: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1/0, 1 00:31:26.927: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, 1 00:18:29.015: %SYS-5-CONFIG_I: Configured from console by console 1 00:17:23.479: %DUAL-5-NBRCHANGE: 1 00:16:45.247: %DUAL-5-NBRCHANGE: R2(config-router)# *Mar (FastEthernet0/0) is down: interface down R2(config-router)#no net 23.1.1.2 255.255.255.0 R2(config-router)#net 12.1.1.2 0.0.0.255 R2(config-router)# *Mar (FastEthernet0/0) is up: new adjacency R2(config-router)#net 23.1.1.2 0.0.0.255 R2(config-router)#net 2.2.2.2 0.0.0.0 R2(config-router)#end R2# *Mar R2# R3 的配置; R3#conf t Enter configuration commands, one per line. End with CNTL/Z. R3(config)#int f0/0 R3(config-if)#ip add 23.1.1.3 255.255.255.0 R3(config-if)#no sh R3(config-if)#int f *Mar *Mar changed state to up R3(config-if)#int f1/0 R3(config-if)#ip add 34.1.1.3 255.255.255.0 R3(config-if)#no sh R3(config-if)#int lo *Mar *Mar changed state to up R3(config-if)#int lo0 R3(config-if)#ip *Mar changed state to up R3(config-if)#ip 3.3.3.3 255.255.255.255 ^ % Invalid input detected at '^' marker. R3(config-if)#ip add 3.3.3.3 255.255.255.255 R3(config-if)#no sh R3(config-if)#exit

错宣告了 13.1.1.3 0.0.0.255 所以后面 no 掉，添上忘了的 23.1.1.3 0.0.0.255 R3(config)#router eigrp 90 R3(config-router)#au R3(config-router)#auto-summary R3(config-router)#net 3.3.3.3 0.0.0.0 R3(config-router)#net 13.1.1.3 0.0.0.255 R3(config-router)#net 34.1.1.3 0.0.0.255 R3(config-router)#end R3# *Mar R3#router eigrp 90 1 00:34:23.155: %SYS-5-CONFIG_I: Configured from console by console ^ % Invalid input detected at '^' marker. R3#conf t Enter configuration commands, one per line. End with CNTL/Z. R3(config)#router eigrp 90 R3(config-router)#no 13.1.1.3 0.0.0.255 % Invalid input detected at '^' marker. ^ R3(config-router)#no net 13.1.1.3 0.0.0.255 R3(config-router)#net 23.1.1.3 0.0.0.255 R3(config-router)# *Mar (FastEthernet0/0) is up: new adjacency R3(config-router)#end R3# *Mar R3# 1 00:36:46.831: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 90: Neighbor 23.1.1.2 建立邻居关系成功 1 00:36:52.807: %SYS-5-CONFIG_I: Configured from console by console R4 的配置 R4#conf t Enter configuration commands, one per line. End with CNTL/Z. R4(config)#int f0/0 R4(config-if)#ip add 34.1.1.4 255.255.255.0 R4(config-if)#no sh R4(config-if)#int *Mar *Mar changed state to up R4(config-if)#int e1/0 R4(config-if)#ip add 14.1.1.4 255.255.255.0 R4(config-if)#no sh 1 00:47:46.147: %LINK-3-UPDOWN: Interface FastEthernet0/0, changed state to up 1 00:47:47.147: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0,

1 00:48:17.507: %LINK-3-UPDOWN: Interface Ethernet1/0, changed state to up 1 00:48:18.507: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet1/0, 1 00:48:21.847: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, R4(config-if)#int l *Mar *Mar changed state to up R4(config-if)#int lo0 R4(config-if)#ip *Mar changed state to up R4(config-if)#ip add 4.4.4.4 255.255.255.255 R4(config-if)#no sh R4(config-if)#exit R4(config)#router eigrp 90 R4(config-router)#au R4(config-router)#auto-summary R4(config-router)#net 4.4.4.4 0.0.0.0 R4(config-router)#net 14.1.1.4 0.0.0.255 R4(config-router)#net 14.1.1.4 0.0.0.255 *Mar (Ethernet1/0) is up: new adjacency R4(config-router)#net 34.1.1.4 0.0.0.255 R4(config-router)# *Mar (FastEthernet0/0) is up: new adjacency R4(config-router)# 1 00:50:02.487: %DUAL-5-NBRCHANGE: 1 00:50:17.483: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 90: Neighbor 14.1.1.1 IP-EIGRP(0) 90: Neighbor 34.1.1.3 实现非等价负载均衡： 1、计算赔数 A、查看拓扑表，看看最小 FD 值（最优路径）与备胎路径的比值 R4#show ip ei topo IP-EIGRP Topology Table for AS(90)/ID(4.4.4.4) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status 412160/158720=2.59 取三倍 P 2.2.2.2/32, 1 successors, FD is 158720 via 34.1.1.3 (158720/156160), FastEthernet0/0 via 14.1.1.1 (412160/156160), Ethernet1/0 P 1.1.1.1/32, 1 successors, FD is 161280 via 34.1.1.3 (161280/158720), FastEthernet0/0 via 14.1.1.1 (409600/128256), Ethernet1/0 P 4.4.4.4/32, 1 successors, FD is 128256 via Connected, Loopback0 P 3.0.0.0/8, 1 successors, FD is 156160 via 34.1.1.3 (156160/128256), FastEthernet0/0 P 4.0.0.0/8, 1 successors, FD is 128256

via Summary (128256/0), Null0 P 12.1.1.0/24, 1 successors, FD is 33280 via 34.1.1.3 (33280/30720), FastEthernet0/0 via 14.1.1.1 (284160/28160), Ethernet1/0 P 14.0.0.0/8, 1 successors, FD is 281600 via Summary (281600/0), Null0 P 14.1.1.0/24, 1 successors, FD is 281600 Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status via Connected, Ethernet1/0 P 23.0.0.0/8, 1 successors, FD is 30720 via 34.1.1.3 (30720/28160), FastEthernet0/0 P 23.1.1.0/24, 1 successors, FD is 286720 via 14.1.1.1 (286720/30720), Ethernet1/0 P 34.1.1.0/24, 1 successors, FD is 28160 via Connected, FastEthernet0/0 P 34.0.0.0/8, 1 successors, FD is 28160 via Summary (28160/0), Null0 R4 B、对 R4 再进行配置 R4#conf t Enter configuration commands, one per line. End with CNTL/Z. R4(config)#router eigrp 90 R4(config-router)#var R4(config-router)#variance R4(config-router)#end 3

C、查看结果 R4#show ip route Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2 i - 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 route Gateway of last resort is not set 34.0.0.0/8 is variably subnetted, 2 subnets, 2 masks 34.1.1.0/24 is directly connected, FastEthernet0/0 34.0.0.0/8 is a summary, 00:00:17, Null0 1.0.0.0/32 is subnetted, 1 subnets 1.1.1.1 [90/161280] via 34.1.1.3, 00:00:17, FastEthernet0/0 [90/409600] via 14.1.1.1, 00:00:17, Ethernet1/0 2.0.0.0/32 is subnetted, 1 subnets 2.2.2.2 [90/158720] via 34.1.1.3, 00:00:17, FastEthernet0/0 [90/412160] via 14.1.1.1, 00:00:17, Ethernet1/0 3.0.0.0/8 [90/156160] via 34.1.1.3, 00:00:19, FastEthernet0/0 4.0.0.0/8 is variably subnetted, 2 subnets, 2 masks 4.4.4.4/32 is directly connected, Loopback0 4.0.0.0/8 is a summary, 00:00:19, Null0 23.0.0.0/8 is variably subnetted, 2 subnets, 2 masks 23.1.1.0/24 [90/286720] via 14.1.1.1, 00:00:25, Ethernet1/0 23.0.0.0/8 [90/30720] via 34.1.1.3, 00:00:25, FastEthernet0/0 12.0.0.0/24 is subnetted, 1 subnets 12.1.1.0 [90/33280] via 34.1.1.3, 00:00:25, FastEthernet0/0 14.0.0.0/8 is variably subnetted, 2 subnets, 2 masks 14.1.1.0/24 is directly connected, Ethernet1/0 14.0.0.0/8 is a summary, 00:00:25, Null0 C D D D D C D D D D C D R4# #

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