华为eNSP实验记录BGP路由反射配置

使用eNSP搭建实验环境:

在这里插入图片描述

1)确保设备之间的连通性

2)配置BGP

3)配置RR

实现此案例需要按照如下步骤进行。

//R1的基本配置
  interface gi0/0/0 
    ip address  192.168.12.1  255.255.255.0
interface gi0/0/1 
    ip address  192.168.1.254  255.255.255.0
interface loopback 13
       ip address 10.10.1.1 255.255.255.0
ospf 1 router-id 1.1.1.1
       area 0 
         network 192.168.12.0 0.0.0.255
         network 10.10.1.1 0.0.0.0  
//R2的基本配置
  interface gi0/0/1 
    ip address  192.168.12.2  255.255.255.0
  interface gi0/0/0 
    ip address  192.168.23.2  255.255.255.0
interface loopback 0
       ip address 10.10.2.2 255.255.255.0
ospf 1 router-id 2.2.2.2
        area 0 
          network 192.168.12.2 0.0.0.0
network 192.168.23.2 0.0.0.0
network 10.10.2.2 0.0.0.0
//R3的基本配置
  interface gi0/0/1 
    ip address  192.168.23.3  255.255.255.0
interface gi0/0/2 
    ip address  192.168.2.254  255.255.255.0
interface loopback 13
       ip address 10.10.3.3 255.255.255.0
ospf 1 router-id 3.3.3.3
        area 0 
          network 192.168.23.3 0.0.0.0
          network 10.10.3.3 0.0.0.0
//R1的配置
  bgp 64512
       router-id 1.1.1.1
       peer 10.10.2.2 as-number 64512
       peer 10.10.2.2 connect-interface loopback 13
       import-route direct
//R2的配置
  bgp 64512
       router-id 2.2.2.2
       peer 10.10.1.1 as-number 64512
       peer 10.10.1.1 connect-interface loopback 0
peer 10.10.3.3 as-number 64512
       peer 10.10.3.3 connect-interface loopback 0
//R3的配置
  bgp 64512
       router-id 3.3.3.3
       peer 10.10.2.2 as-number 64512
       peer 10.10.2.2 connect-interface loopback 13
       network 192.168.2.0 255.255.255.0      
//查看R1的路由表
   <Huawei>dis bgp ro
 BGP Local router ID is 1.1.1.1 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete
 Total Number of Routes: 8
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn
 *>   10.10.1.0/24       0.0.0.0         0                     0      ?
 *>   10.10.1.1/32       0.0.0.0         0                     0      ?
 *>   127.0.0.0          0.0.0.0         0                     0      ?
 *>   127.0.0.1/32       0.0.0.0         0                     0      ?
 *>   192.168.1.0        0.0.0.0         0                     0      ?
 *>   192.168.1.254/32   0.0.0.0         0                     0      ?
 *>   192.168.12.0       0.0.0.0         0                     0      ?
 *>   192.168.12.1/32    0.0.0.0         0                     0      ?
<Huawei>dis ip ro
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 16       Routes : 16       
Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface
      10.10.1.0/24  Direct  0    0           D   10.10.1.1       LoopBack13
      10.10.1.1/32  Direct  0    0           D   127.0.0.1       LoopBack13
    10.10.1.255/32  Direct  0    0           D   127.0.0.1       LoopBack13
      10.10.2.2/32  OSPF    10   1           D   192.168.12.2    GigabitEthernet
0/0/0
      10.10.3.3/32  OSPF    10   2           D   192.168.12.2    GigabitEthernet
0/0/0
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
    192.168.1.0/24  Direct  0    0           D   192.168.1.254   GigabitEthernet
0/0/1
  192.168.1.254/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
  192.168.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
   192.168.12.0/24  Direct  0    0           D   192.168.12.1    GigabitEthernet
0/0/0
   192.168.12.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
 192.168.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
   192.168.23.0/24  OSPF    10   2           D   192.168.12.2    GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
//查看R2的路由表       
<Huawei>dis bgp ro
 BGP Local router ID is 2.2.2.2 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete
 Total Number of Routes: 4
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn
 *>i  10.10.1.0/24       10.10.1.1       0          100        0      ?
 *>i  192.168.1.0        10.10.1.1       0          100        0      ?
 *>i  192.168.2.0        10.10.3.3       0          100        0      i
 *>i  192.168.12.0       10.10.1.1       0          100        0      ?
<Huawei>dis ip ro
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 18       Routes : 18       
Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface
      10.10.1.0/24  IBGP    255  0          RD   10.10.1.1       GigabitEthernet
0/0/1
      10.10.1.1/32  OSPF    10   1           D   192.168.12.1    GigabitEthernet
0/0/1
      10.10.2.0/24  Direct  0    0           D   10.10.2.2       LoopBack0
      10.10.2.2/32  Direct  0    0           D   127.0.0.1       LoopBack0
    10.10.2.255/32  Direct  0    0           D   127.0.0.1       LoopBack0
      10.10.3.3/32  OSPF    10   1           D   192.168.23.3    GigabitEthernet
0/0/0
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
    192.168.1.0/24  IBGP    255  0          RD   10.10.1.1       GigabitEthernet
0/0/1
    192.168.2.0/24  IBGP    255  0          RD   10.10.3.3       GigabitEthernet
0/0/0
   192.168.12.0/24  Direct  0    0           D   192.168.12.2    GigabitEthernet
0/0/1
   192.168.12.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
 192.168.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
   192.168.23.0/24  Direct  0    0           D   192.168.23.2    GigabitEthernet
0/0/0
   192.168.23.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
 192.168.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
//查看R3的路由表 
<Huawei>dis bgp ro
 BGP Local router ID is 3.3.3.3 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete
 Total Number of Routes: 1
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn
 *>   192.168.2.0        0.0.0.0         0                     0      i
<Huawei>dis ip ro
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 16       Routes : 16       
Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface
      10.10.1.1/32  OSPF    10   2           D   192.168.23.2    GigabitEthernet
0/0/1
      10.10.2.2/32  OSPF    10   1           D   192.168.23.2    GigabitEthernet
0/0/1
      10.10.3.0/24  Direct  0    0           D   10.10.3.3       LoopBack13
      10.10.3.3/32  Direct  0    0           D   127.0.0.1       LoopBack13
    10.10.3.255/32  Direct  0    0           D   127.0.0.1       LoopBack13
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
    192.168.2.0/24  Direct  0    0           D   192.168.2.254   GigabitEthernet
0/0/2
  192.168.2.254/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2
  192.168.2.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2
   192.168.12.0/24  OSPF    10   2           D   192.168.23.2    GigabitEthernet
0/0/1
   192.168.23.0/24  Direct  0    0           D   192.168.23.3    GigabitEthernet
0/0/1
   192.168.23.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
 192.168.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
可以看到,由于IBGP 遵守水平分割规则,R2不能将学习到的路由互相转发,造成R1R3不能学习到对方的路由。
PC1PC2不能ping通。
 //R2的配置
bgp  64512 
//将10.10.1.1配置成了路由反射器客户端,同时自己成为了路由反射器
   peer 10.10.1.1 reflect-client
//将10.10.3.3配置成了路由反射器客户端
   peer 10.10.3.3 reflect-client 
//查看R1的路由表
<Huawei>dis bgp ro
 BGP Local router ID is 1.1.1.1 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete
 Total Number of Routes: 9
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn
 *>   10.10.1.0/24       0.0.0.0         0                     0      ?
 *>   10.10.1.1/32       0.0.0.0         0                     0      ?
 *>   127.0.0.0          0.0.0.0         0                     0      ?
 *>   127.0.0.1/32       0.0.0.0         0                     0      ?
 *>   192.168.1.0        0.0.0.0         0                     0      ?
 *>   192.168.1.254/32   0.0.0.0         0                     0      ?
 *>i  192.168.2.0        10.10.3.3       0          100        0      i
 *>   192.168.12.0       0.0.0.0         0                     0      ?
 *>   192.168.12.1/32    0.0.0.0         0                     0      ?
<Huawei>dis ip ro
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 17       Routes : 17       
Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface
      10.10.1.0/24  Direct  0    0           D   10.10.1.1       LoopBack13
      10.10.1.1/32  Direct  0    0           D   127.0.0.1       LoopBack13
    10.10.1.255/32  Direct  0    0           D   127.0.0.1       LoopBack13
      10.10.2.2/32  OSPF    10   1           D   192.168.12.2    GigabitEthernet
0/0/0
      10.10.3.3/32  OSPF    10   2           D   192.168.12.2    GigabitEthernet
0/0/0
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
    192.168.1.0/24  Direct  0    0           D   192.168.1.254   GigabitEthernet
0/0/1
  192.168.1.254/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
  192.168.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
    192.168.2.0/24  IBGP    255  0          RD   10.10.3.3       GigabitEthernet
0/0/0
   192.168.12.0/24  Direct  0    0           D   192.168.12.1    GigabitEthernet
0/0/0
   192.168.12.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
 192.168.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
   192.168.23.0/24  OSPF    10   2           D   192.168.12.2    GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
//查看R2的路由表
<Huawei>dis bgp ro
 BGP Local router ID is 2.2.2.2 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete
 Total Number of Routes: 4
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn
 *>i  10.10.1.0/24       10.10.1.1       0          100        0      ?
 *>i  192.168.1.0        10.10.1.1       0          100        0      ?
 *>i  192.168.2.0        10.10.3.3       0          100        0      i
 *>i  192.168.12.0       10.10.1.1       0          100        0      ?
<Huawei>dis ip ro
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 18       Routes : 18       
Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface
      10.10.1.0/24  IBGP    255  0          RD   10.10.1.1       GigabitEthernet
0/0/1
      10.10.1.1/32  OSPF    10   1           D   192.168.12.1    GigabitEthernet
0/0/1
      10.10.2.0/24  Direct  0    0           D   10.10.2.2       LoopBack0
      10.10.2.2/32  Direct  0    0           D   127.0.0.1       LoopBack0
    10.10.2.255/32  Direct  0    0           D   127.0.0.1       LoopBack0
      10.10.3.3/32  OSPF    10   1           D   192.168.23.3    GigabitEthernet
0/0/0
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
    192.168.1.0/24  IBGP    255  0          RD   10.10.1.1       GigabitEthernet
0/0/1
    192.168.2.0/24  IBGP    255  0          RD   10.10.3.3       GigabitEthernet
0/0/0
   192.168.12.0/24  Direct  0    0           D   192.168.12.2    GigabitEthernet
0/0/1
   192.168.12.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
 192.168.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
   192.168.23.0/24  Direct  0    0           D   192.168.23.2    GigabitEthernet
0/0/0
   192.168.23.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
 192.168.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
//查看R3的路由表
<Huawei>dis bgp ro
 BGP Local router ID is 3.3.3.3 
 Status codes: * - valid, > - best, d - damped,
               h - history,  i - internal, s - suppressed, S - Stale
               Origin : i - IGP, e - EGP, ? - incomplete
 Total Number of Routes: 4
      Network            NextHop        MED        LocPrf    PrefVal Path/Ogn
 *>i  10.10.1.0/24       10.10.1.1       0          100        0      ?
 *>i  192.168.1.0        10.10.1.1       0          100        0      ?
 *>   192.168.2.0        0.0.0.0         0                     0      i
 *>i  192.168.12.0       10.10.1.1       0          100        0      ?
<Huawei>dis ip ro
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 18       Routes : 18       
Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface
      10.10.1.0/24  IBGP    255  0          RD   10.10.1.1       GigabitEthernet
0/0/1
      10.10.1.1/32  OSPF    10   2           D   192.168.23.2    GigabitEthernet
0/0/1
      10.10.2.2/32  OSPF    10   1           D   192.168.23.2    GigabitEthernet
0/0/1
      10.10.3.0/24  Direct  0    0           D   10.10.3.3       LoopBack13
      10.10.3.3/32  Direct  0    0           D   127.0.0.1       LoopBack13
    10.10.3.255/32  Direct  0    0           D   127.0.0.1       LoopBack13
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
    192.168.1.0/24  IBGP    255  0          RD   10.10.1.1       GigabitEthernet
0/0/1
    192.168.2.0/24  Direct  0    0           D   192.168.2.254   GigabitEthernet
0/0/2
  192.168.2.254/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2
  192.168.2.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2
   192.168.12.0/24  OSPF    10   2           D   192.168.23.2    GigabitEthernet
0/0/1
   192.168.23.0/24  Direct  0    0           D   192.168.23.3    GigabitEthernet
0/0/1
   192.168.23.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
 192.168.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
可以看到,路由反射器将从客户处学到的路由转发给除此客户外的所有的客户,R1R3可以学习到对方的路由。
PC1PC2可以ping通。

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