原理
水平分割工作原理:为了防止环路产生,从EBGP学习的路由,传输到ibgp中,下一跳的地址不变(属性不变)
必须通过next-hop-local更改,下一跳本地
配置流程
1、各个分区的tcp保证连通
as 100
1)创景ospfv3进程
ospfv3 100
router-id 1.1.1.1
2)将端口划分给area 0
interface GigabitEthernet0/0/0
ipv6 enable
ipv6 address 2023:12::1/64
ipv6 address auto link-local
ospfv3 100 area 0.0.0.0
3)启用bgp
bgp 100
router-id 1.1.1.1
peer 2023:2::2 as-number 100
peer 2023:2::2 connect-interface LoopBack0
peer 2023:3::3 as-number 100
peer 2023:3::3 connect-interface LoopBack0
peer 2023:4::4 as-number 100
peer 2023:4::4 connect-interface LoopBack0
ipv6-family unicast
undo synchronization
network 2023:10::10 128
peer 2023:2::2 enable
peer 2023:3::3 enable
peer 2023:4::4 enable
peer 2023:4::4 next-hop-local