OSPF中的路由汇总配置.docx

OSPF中的路由汇总配置.docx

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OSPF中的路由汇总配置

∙OSPF中的路由汇总配置

（1）

∙ 2008-04-2315:

44 佚名 中国IT实验室 我要评论（0）

本篇文章讲述了通过汇总减少路由器由于路由表中的路由条目过多产生的负担。

目的：

通过汇总减少路由器由于路由表中的路由条目过多产生的负担

路由器的基本配置：

r1#shorun

!

interfaceLoopback0

ipaddress199.172.16.1255.255.255.0

!

interfaceLoopback1

ipaddress199.172.17.1255.255.255.0

!

interfaceLoopback2

ipaddress199.172.18.1255.255.255.0

!

interfaceLoopback3

ipaddress199.172.19.1255.255.255.0

!

interfaceFastEthernet0/0

ipaddress12.0.0.1255.255.255.0

duplexhalf

!

routerospf110

log-adjacency-changes

network0.0.0.0255.255.255.255area12

!

!

End

r2#shorun

!

interfaceFastEthernet0/0

ipaddress12.0.0.2255.255.255.0

duplexhalf

!

interfaceSerial2/2

ipaddress23.0.0.2255.255.255.0

serialrestart-delay0

!

routerospf110

log-adjacency-changes

area12range199.172.16.0255.255.252.0//路由汇总

network12.0.0.00.0.0.255area12

network23.0.0.00.0.0.255area0

!

End

r3#shorun

!

interfaceSerial2/1

ipaddress23.0.0.3255.255.255.0

serialrestart-delay0

!

interfaceSerial2/2

ipaddress34.0.0.3255.255.255.0

serialrestart-delay0

!

routerospf110

log-adjacency-changes

network23.0.0.00.0.0.255area0

network34.0.0.00.0.0.255area34

!

End

r4#shorun

!

interfaceLoopback0

ipaddress151.100.32.1255.255.255.0

!

interfaceLoopback1

ipaddress151.100.33.1255.255.255.0

!

interfaceLoopback2

ipaddress151.100.34.1255.255.255.0

!

interfaceLoopback3

ipaddress151.100.35.1255.255.255.0

!

interfaceSerial2/1

ipaddress34.0.0.4255.255.255.0

serialrestart-delay0

!

routerospf110

log-adjacency-changes

summary-address151.100.32.0255.255.252.0

//路由汇总把区域外的路由条目汇总成一条,

redistributeconnectedsubnetsroute-maphhh

//把域外的路由条目重分布到域内

network34.0.0.00.0.0.255area34

!

route-maphhhpermit10

matchinterfaceLoopback0Loopback1Loopback2Loopback3

!

End

查看路由表：

r1#shoiproute

Codes:

C-connected,S-static,I-IGRP,R-RIP,M-mobile,B-BGP

D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea

N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2

E1-OSPFexternaltype1,E2-OSPFexternaltype2,E-EGP

i-IS-IS,L1-IS-ISlevel-1,L2-IS-ISlevel-2,ia-IS-ISinterarea

*-candidatedefault,U-per-userstaticroute,o-ODR

P-periodicdownloadedstaticroute

Gatewayoflastresortisnotset

34.0.0.0/24issubnetted,1subnets

OIA34.0.0.0[110/129]via12.0.0.2,00:

11:

38,FastEthernet0/0

23.0.0.0/24issubnetted,1subnets

OIA23.0.0.0[110/65]via12.0.0.2,00:

11:

38,FastEthernet0/0

C199.172.18.0/24isdirectlyconnected,Loopback2

C199.172.19.0/24isdirectlyconnected,Loopback3

C199.172.16.0/24isdirectlyconnected,Loopback0

C199.172.17.0/24isdirectlyconnected,Loopback1

12.0.0.0/24issubnetted,1subnets

C12.0.0.0isdirectlyconnected,FastEthernet0/0

151.100.0.0/22issubnetted,1subnets

OE2151.100.32.0[110/20]via12.0.0.2,00:

03:

40,FastEthernet0/0

//经过汇总后重分布到域内的路由条目

r2#shoiproute

Codes:

C-connected,S-static,I-IGRP,R-RIP,M-mobile,B-BGP

D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea

N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2

E1-OSPFexternaltype1,E2-OSPFexternaltype2,E-EGP

i-IS-IS,L1-IS-ISlevel-1,L2-IS-ISlevel-2,ia-IS-ISinterarea

*-candidatedefault,U-per-userstaticroute,o-ODR

P-periodicdownloadedstaticroute

Gatewayoflastresortisnotset

34.0.0.0/24issubnetted,1subnets

OIA34.0.0.0[110/128]via23.0.0.3,00:

11:

17,Serial2/2

23.0.0.0/24issubnetted,1subnets

C23.0.0.0isdirectlyconnected,Serial2/2

199.172.18.0/32issubnetted,1subnets

O199.172.18.1[110/2]via12.0.0.1,00:

11:

17,FastEthernet0/0

199.172.19.0/32issubnetted,1subnets

O199.172.19.1[110/2]via12.0.0.1,00:

11:

17,FastEthernet0/0

199.172.16.0/32issubnetted,1subnets

O199.172.16.1[110/2]via12.0.0.1,00:

11:

17,FastEthernet0/0

199.172.17.0/32issubnetted,1subnets

O199.172.17.1[110/2]via12.0.0.1,00:

11:

17,FastEthernet0/0

12.0.0.0/24issubnetted,1subnets

C12.0.0.0isdirectlyconnected,FastEthernet0/0

151.100.0.0/22issubnetted,1subnets

OE2151.100.32.0[110/20]via23.0.0.3,00:

04:

38,Serial2/2

//经过汇总后重分布到域内的路由条目

O199.172.16.0/22isasummary,00:

11:

28,Null0

//经过汇总后的路由条目

r3#shoiproute

Codes:

C-connected,S-static,I-IGRP,R-RIP,M-mobile,B-BGP

D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea

N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2

E1-OSPFexternaltype1,E2-OSPFexternaltype2,E-EGP

i-IS-IS,L1-IS-ISlevel-1,L2-IS-ISlevel-2,ia-IS-ISinterarea

*-candidatedefault,U-per-userstaticroute,o-ODR

P-periodicdownloadedstaticroute

Gatewayoflastresortisnotset

34.0.0.0/24issubnetted,1subnets

C34.0.0.0isdirectlyconnected,Serial2/2

23.0.0.0/24issubnetted,1subnets

C23.0.0.0isdirectlyconnected,Serial2/1

12.0.0.0/24issubnetted,1subnets

OIA12.0.0.0[110/65]via23.0.0.2,00:

13:

25,Serial2/1

151.100.0.0/22issubnetted,1subnets

OE2151.100.32.0[110/20]via34.0.0.4,00:

05:

06,Serial2/2

//经过汇总后重分布到域内的路由条目

OIA199.172.16.0/22[110/66]via23.0.0.2,00:

11:

57,Serial2/1

//经过汇总后的路由条目

r4#shoiproute

Codes:

C-connected,S-static,I-IGRP,R-RIP,M-mobile,B-BGP

D-EIGRP,EX-EIGRPexternal,O-OSPF,IA-OSPFinterarea

N1-OSPFNSSAexternaltype1,N2-OSPFNSSAexternaltype2

E1-OSPFexternaltype1,E2-OSPFexternaltype2,E-EGP

i-IS-IS,L1-IS-ISlevel-1,L2-IS-ISlevel-2,ia-IS-ISinterarea

*-candidatedefault,U-per-userstaticroute,o-ODR

P-periodicdownloadedstaticroute

Gatewayoflastresortisnotset

34.0.0.0/24issubnetted,1subnets

C34.0.0.0isdirectlyconnected,Serial2/1

23.0.0.0/24issubnetted,1subnets

OIA23.0.0.0[110/128]via34.0.0.3,01:

06:

25,Serial2/1

12.0.0.0/24issubnetted,1subnets

OIA12.0.0.0[110/129]via34.0.0.3,00:

25:

26,Serial2/1

151.100.0.0/16isvariablysubnetted,5subnets,2masks

C151.100.35.0/24isdirectlyconnected,Loopback3

C151.100.34.0/24isdirectlyconnected,Loopback2

C151.100.33.0/24isdirectlyconnected,Loopback1

O151.100.32.0/22isasummary,00:

05:

41,Null0

C151.100.32.0/24isdirectlyconnected,Loopback0

OIA199.172.16.0/22[110/130]via34.0.0.3,00:

12:

31,Serial2/1

///经过汇总后的路由条目

r1#ping151.100.32.1

Typeescapesequencetoabort.

Sending5,100-byteICMPEchosto151.100.32.1,timeoutis2seconds:

!

!

!

!

!

r4#ping199.172.19.1

Typeescapesequencetoabort.

Sending5,100-byteICMPEchosto199.172.19.1,timeoutis2seconds:

!

!

!

!

!