ospf与rip双点双向重分发实验-实现负载均衡

原创

Aurora_Borealis 2019-02-17 13:59:05 ©著作权

文章标签 双点双向重发布的次优路径问题及路由问题 文章分类 负载均衡服务器

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本次实验，路由器，思科的网络设备拓扑如下（比较简单）：首先是动态路由协议配置及ip配置 -----------1 en conf t router ospf 1 router-id 1.1.1.1 netw 192.168.12.1 0.0.0.0 area 0 exit router rip ver 2 no aut netwo 192.168.14.0 exit --------------2 en conf t int l0 ip add 2.2.2.2 255.255.255.0 ip ospf net point-to-po router ospf 1 router-id 2.2.2.2 network 192.168.12.2 0.0.0.0 area 0 netwo 192.168.23.2 0.0.0.0 area 0 netw 2.2.2.0 0.0.0.255 area 0 exit ---------------3 en conf t router ospf 1 router-id 3.3.3.3 netw 192.168.23.3 0.0.0.0 area 0 exit router rip ver 2 no aut netwo 192.168.34.0 exit --------4 en conf t router rip ver 2 no aut netw 192.168.34.0 netwo 192.168.14.0 netwo 4.4.4.0 exit ip 地址配置：2.2.2.2是R2 4.4.4.4是R4 主要查看3和1路由器中路由表的变化

接下来是重发布，首先将AD值小的ospf重发布到AD值大的RIP中去 ====================================ospf-rip

-------------------1 en conf t router rip redistribute ospf 1 metric 2 end wr ------------------3 en conf t router rip red ospf 1 met 2 end wr

==================================== 其次将rip重发布到ospf中去 =====================================rip-ospf

---------------------1 en conf t router ospf 1 red rip subn end wr

---------------------3 R3#show ip route Codes: L - local, 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, H - NHRP, l - LISP a - application route + - replicated route, % - next hop override

Gateway of last resort is not set

  2.0.0.0/24 is subnetted, 1 subnets

O 2.2.2.0 [110/65] via 192.168.23.2, 00:19:37, Serial1/1 4.0.0.0/24 is subnetted, 1 subnets O E2 4.4.4.0 [110/20] via 192.168.23.2, 00:06:34, Serial1/1 O 192.168.12.0/24 [110/128] via 192.168.23.2, 00:19:37, Serial1/1 O E2 192.168.14.0/24 [110/20] via 192.168.23.2, 00:06:34, Serial1/1 192.168.23.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.23.0/24 is directly connected, Serial1/1 L 192.168.23.3/32 is directly connected, Serial1/1 192.168.34.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.34.0/24 is directly connected, Serial1/0 L 192.168.34.3/32 is directly connected, Serial1/0

====1上进行重发布，发现3上路由表出现了次优路径的情况，去忘4.4.4.0网段然后3上修改AD值 ++++++

en conf t acc 4 per 4.4.4.0 router rip dista 100 192.168.34.4 0.0.0.0 4 end

+++++ R3# R3#show ip route Codes: L - local, 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, H - NHRP, l - LISP a - application route + - replicated route, % - next hop override

Gateway of last resort is not set

  2.0.0.0/24 is subnetted, 1 subnets

O 2.2.2.0 [110/65] via 192.168.23.2, 00:21:53, Serial1/1 4.0.0.0/24 is subnetted, 1 subnets R 4.4.4.0 [100/1] via 192.168.34.4, 00:00:19, Serial1/0 O 192.168.12.0/24 [110/128] via 192.168.23.2, 00:21:53, Serial1/1 O E2 192.168.14.0/24 [110/20] via 192.168.23.2, 00:08:50, Serial1/1 192.168.23.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.23.0/24 is directly connected, Serial1/1 L 192.168.23.3/32 is directly connected, Serial1/1 192.168.34.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.34.0/24 is directly connected, Serial1/0 L 192.168.34.3/32 is directly connected, Serial1/0 R3# R3# 再次查看路由表，发现次优路径问题在上已经修正但因为是双点双向重发布，所以3上也需要配置重发布 -+-+-+-+-+-+-++-- en conf t router ospf 1 red rip subn end wr

配置完成后，查看R1的路由表 R1#show ip route Codes: L - local, 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, H - NHRP, l - LISP a - application route + - replicated route, % - next hop override

Gateway of last resort is not set

  2.0.0.0/24 is subnetted, 1 subnets

O 2.2.2.0 [110/65] via 192.168.12.2, 00:27:10, Serial1/0 4.0.0.0/24 is subnetted, 1 subnets O E2 4.4.4.0 [110/20] via 192.168.12.2, 00:00:18, Serial1/0 192.168.12.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.12.0/24 is directly connected, Serial1/0 L 192.168.12.1/32 is directly connected, Serial1/0 192.168.14.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.14.0/24 is directly connected, Serial1/1 L 192.168.14.1/32 is directly connected, Serial1/1 O 192.168.23.0/24 [110/128] via 192.168.12.2, 00:27:34, Serial1/0 O E2 192.168.34.0/24 [110/20] via 192.168.12.2, 00:00:18, Serial1/0 R1# R1# R1#

我们发现1上也出现了关于4.4.4.0网段的次优路径问题

此时我们将1的来自4.4.4.0的路由的AD值修改 -------1 en conf t acc 4 per 4.4.4.0 router rip dista 100 192.168.14.4 0.0.0.0 4 end

此时我们再次查看1的路由表

R1#show ip route

Codes: L - local, 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, H - NHRP, l - LISP a - application route + - replicated route, % - next hop override

Gateway of last resort is not set

  2.0.0.0/24 is subnetted, 1 subnets

O 2.2.2.0 [110/65] via 192.168.12.2, 00:32:27, Serial1/0 4.0.0.0/24 is subnetted, 1 subnets R 4.4.4.0 [100/1] via 192.168.14.4, 00:00:02, Serial1/1 192.168.12.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.12.0/24 is directly connected, Serial1/0 L 192.168.12.1/32 is directly connected, Serial1/0 192.168.14.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.14.0/24 is directly connected, Serial1/1 L 192.168.14.1/32 is directly connected, Serial1/1 O 192.168.23.0/24 [110/128] via 192.168.12.2, 00:32:51, Serial1/0 O E2 192.168.34.0/24 [110/20] via 192.168.12.2, 00:05:35, Serial1/0 R1# R1# R1#

发现次优路径问题也修正完成然后查看网络中其他设备的路由表

R2#show ip route Codes: L - local, 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, H - NHRP, l - LISP a - application route + - replicated route, % - next hop override

Gateway of last resort is not set

  2.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 2.2.2.0/24 is directly connected, Loopback0 L 2.2.2.2/32 is directly connected, Loopback0 4.0.0.0/24 is subnetted, 1 subnets O E2 4.4.4.0 [110/20] via 192.168.23.3, 00:05:52, Serial1/1 [110/20] via 192.168.12.1, 00:00:19, Serial1/0 192.168.12.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.12.0/24 is directly connected, Serial1/0 L 192.168.12.2/32 is directly connected, Serial1/0 O E2 192.168.14.0/24 [110/20] via 192.168.12.1, 00:18:17, Serial1/0 192.168.23.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.23.0/24 is directly connected, Serial1/1 L 192.168.23.2/32 is directly connected, Serial1/1 O E2 192.168.34.0/24 [110/20] via 192.168.23.3, 00:05:52, Serial1/1 R2# R2# R2# R2#

R3#show ip route Codes: L - local, 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, H - NHRP, l - LISP a - application route + - replicated route, % - next hop override

Gateway of last resort is not set

  2.0.0.0/24 is subnetted, 1 subnets

O 2.2.2.0 [110/65] via 192.168.23.2, 00:31:12, Serial1/1 4.0.0.0/24 is subnetted, 1 subnets R 4.4.4.0 [100/1] via 192.168.34.4, 00:00:01, Serial1/0 O 192.168.12.0/24 [110/128] via 192.168.23.2, 00:31:12, Serial1/1 O E2 192.168.14.0/24 [110/20] via 192.168.23.2, 00:18:09, Serial1/1 192.168.23.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.23.0/24 is directly connected, Serial1/1 L 192.168.23.3/32 is directly connected, Serial1/1 192.168.34.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.34.0/24 is directly connected, Serial1/0 L 192.168.34.3/32 is directly connected, Serial1/0 R3# R3# R3# R3# R3#

R4#show ip route Codes: L - local, 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, H - NHRP, l - LISP a - application route + - replicated route, % - next hop override

Gateway of last resort is not set

  2.0.0.0/24 is subnetted, 1 subnets

R 2.2.2.0 [120/2] via 192.168.34.3, 00:00:16, Serial1/0 [120/2] via 192.168.14.1, 00:00:18, Serial1/1 4.0.0.0/8 is variably subnetted, 2 subnets, 2 masks C 4.4.4.0/24 is directly connected, Loopback0 L 4.4.4.4/32 is directly connected, Loopback0 R 192.168.12.0/24 [120/2] via 192.168.34.3, 00:00:16, Serial1/0 [120/2] via 192.168.14.1, 00:00:18, Serial1/1 192.168.14.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.14.0/24 is directly connected, Serial1/1 L 192.168.14.4/32 is directly connected, Serial1/1 R 192.168.23.0/24 [120/2] via 192.168.34.3, 00:00:16, Serial1/0 [120/2] via 192.168.14.1, 00:00:18, Serial1/1 192.168.34.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.34.0/24 is directly connected, Serial1/0 L 192.168.34.4/32 is directly connected, Serial1/0 R4# R4# R4# R4#

2与4之间的链路实现了负载均衡

感谢观看，希望指出问题，我对这块也只是初学者