HuaWei ❀ 在路由引入时应用路由策略

在路由引入时应用路由策略

如下图所示，R2与R1之间运行OSPF协议，R2与R3之间运行ISIS协议，要求R2上将ISIS路由引入到OSPF网络中，OSPF路由引入到ISIS网络中，10.1.1.0/24优先级较低、10.1.2.0/24具有Tag标识；

接口IP地址配置：

[r1]int g0/0/0
[r1-GigabitEthernet0/0/0]ip address 12.1.1.1 24

配置OSPF协议：

[r1]ospf 100 router-id 1.1.1.1
[r1-ospf-100]area 0
[r1-ospf-100-area-0.0.0.0]network 1.1.1.0 0.0.0.255
[r1-ospf-100-area-0.0.0.0]network 12.1.1.0 0.0.0.255

[r2]ospf 100 router-id 2.2.2.2
[r2-ospf-100]area 0
[r2-ospf-100-area-0.0.0.0]network 12.1.1.0 0.0.0.255

配置ISIS协议：

[r2]isis 1
[r2-isis-1]is-level level-2  
[r2-isis-1]network-entity 10.0000.0000.0001.00
[r2-isis-1]int g0/0/1
[r2-GigabitEthernet0/0/1]isis enable

[r3]isis 1
[r3-isis-1]is-level level-2  
[r3-isis-1]network-entity 10.0000.0000.0002.00
[r3-isis-1]int g0/0/1
[r3-GigabitEthernet0/0/1]isis enable 

配置路由引入：

[r2]isis 1
[r2-isis-1]import-route ospf 

[r2]ospf 100
[r2-ospf-100]import-route isis 

配置路由过滤列表：

[r2]acl number ?
  INTEGER<2000-2999>  Basic access-list(add to current using rules)
  INTEGER<3000-3999>  Advanced access-list(add to current using rules)
  INTEGER<4000-4999>  Specify a L2 acl group
[r2]acl number 2001
[r2-acl-basic-2001]rule 5 permit source 10.1.1.1 0.0.0.255

[r2]ip ip-prefix xxx index 5 permit 10.1.2.1 24

[r2]route-policy isis2ospf permit node 1 
[r2-route-policy]if-match ip-prefix xxx
[r2-route-policy]apply cost 50
[r2-route-policy]quit
[r2]route-policy isis2ospf permit node 2 
[r2-route-policy]if-match acl 2001
[r2-route-policy]apply tag 20
[r2-route-policy]quit
[r2]route-policy isis2ospf permit node 3
[r2-route-policy]quit

[r2]ospf 100
[r2-ospf-100]import-route isis 1 route-policy isis2ospf

查看配置结果：

[r1]display ospf  routing 

         OSPF Process 100 with Router ID 1.1.1.1
                  Routing Tables 

 Routing for Network 
 Destination        Cost  Type       NextHop         AdvRouter       Area
 1.1.1.1/32         0     Stub       1.1.1.1         1.1.1.1         0.0.0.0
 12.1.1.0/24        1     Transit    12.1.1.1        1.1.1.1         0.0.0.0

 Routing for ASEs
 Destination        Cost      Type       Tag         NextHop         AdvRouter
 10.1.1.0/24        1         Type2      20          12.1.1.2        2.2.2.2
 10.1.2.0/24        50        Type2      1           12.1.1.2        2.2.2.2
 10.1.3.0/24        1         Type2      1           12.1.1.2        2.2.2.2
 10.1.4.0/24        1         Type2      1           12.1.1.2        2.2.2.2
 23.1.1.0/24        1         Type2      1           12.1.1.2        2.2.2.2

 Total Nets: 7  
 Intra Area: 2  Inter Area: 0  ASE: 5  NSSA: 0