17.3 BGP4+

1.R1配置OSPFv2和OSPFv3

[R1]ospf 1 router-id 1.1.1.1
[R1-ospf-1]area 0
[R1-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0
[R1-ospf-1-area-0.0.0.0]network 12.1.1.0 0.255.255.255

[R1]ospfv3
[R1-ospfv3-1]router-id 1.1.1.1
[R1]interface GigabitEthernet 0/0/0
[R1-GigabitEthernet0/0/0]ospfv3 1 area 0
[R1]interface LoopBack 0
[R1-LoopBack0]ospfv3 1 area 0

2.R1配置OSPFv2和OSPFv3

[R2]ospf 1 router-id 2.2.2.2
[R2-ospf-1]area 0
[R2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[R2-ospf-1-area-0.0.0.0]network 12.1.1.0 0.255.255.255
[R2]ospfv3 
[R2-ospfv3-1]router-id 2.2.2.2
[R2]interface LoopBack 0
[R2-LoopBack0]ospfv3 1 area 0
[R2]interface GigabitEthernet 0/0/0 
[R2-GigabitEthernet0/0/0]ospfv3 1 area 0

3.R1配置BGP，IPV6下使能邻居

[R1]bgp 12
[R1-bgp]router-id 1.1.1.1
[R1-bgp]peer 2.2.2.2 as-number 12
[R1-bgp]peer 2.2.2.2 connect-interface LoopBack 0
[R1-bgp]peer 2021::2 as-number 12
[R1-bgp]peer 2021::2 connect-interface LoopBack 0
[R1-bgp]ipv6-family unicast 
[R1-bgp-af-ipv6]peer 2021::2 enable
[R1-bgp-af-ipv6]network 2012:: 64
[R1-bgp-af-ipv6]network 2011:: 64

4.R2配置BGP，IPV6下使能邻居

[R2]bgp 12
[R2-bgp]router-id 2.2.2.2
[R2-bgp]peer 1.1.1.1 as-number 12
[R2-bgp]peer 1.1.1.1 connect-interface LoopBack 0
[R2-bgp]peer 2011::1 as-number 12
[R2-bgp]peer 2011::1 connect-interface LoopBack 0
[R2-bgp]ipv6-family unicast
[R2-bgp-af-ipv6]peer 2011::1 enable
[R2-bgp-af-ipv6]network 2012:: 64
[R2-bgp-af-ipv6]network 2021:: 64

5.查看BGP信息

[R1]display bgp peer
 2.2.2.2         4          12        6        7     0 00:04:47 Established       0

[R1]display bgp ipv6 peer
  2021::2         4          12        3        4     0 00:01:08 Established       0

6.BGP引入OSPF

[R1]bgp 12
[R1-bgp]import-route ospf 1
[R1-bgp]ipv6-family unicast
[R1-bgp-af-ipv6]import-route ospfv3 1

[R2]bgp 12
[R2-bgp]import-route ospf 1
[R2-bgp]ipv6-family unicast
[R2-bgp-af-ipv6]import-route ospfv3 1

7.查看BGP路由表

[R2]display bgp routing-table 
 *>   1.1.1.1/32         0.0.0.0         1                     0      ?
   i                     1.1.1.1         0          100        0      ?
 *>   2.2.2.2/32         0.0.0.0         0                     0      ?
 * i                     1.1.1.1         1          100        0      ?
 *>   12.0.0.0           0.0.0.0         0                     0      ?
 * i                     1.1.1.1         0          100        0      ?

[R2]display bgp ipv6 routing-table
 *>i Network  : 2011::                                   PrefixLen : 64     
     NextHop  : 2011::1                                  LocPrf    : 100       
     MED      : 0                                        PrefVal   : 0         
     Label    : 
     Path/Ogn : i
 *>  Network  : 2011::1                                  PrefixLen : 128    
     NextHop  : ::                                       LocPrf    :          
     MED      : 1                                        PrefVal   : 0         
     Label    : 
     Path/Ogn : ?
 *>  Network  : 2012::                                   PrefixLen : 64     
     NextHop  : ::                                       LocPrf    :          
     MED      : 0                                        PrefVal   : 0         
     Label    : 
     Path/Ogn : i