配置流程
1、配制TCP/IP网络为BGP打基础
isis 100
network-entity 49.0001.0010.0100.1001.00 //49.0001区域号；0010.0100.1001系统号；00为net
cost-style wide
is-level level-2
应用到相关接口
interface gigabitethernet 0/0/0
isis enable 100
2、配置bgp
bgp 100
router-id 1.1.1.1
undo default ipv4-family unicast //关闭默认ipv4-family unicast
peer 对端ip as-number 100 //ibgpip
peer 对端ip connect-interface loopback 0
配置vpnv4
ipv4-family vpnv4
policy vpn-target
peer 3.3.3.3 enable
3、配置mpls
mpls lsr-id 1.1.1.1
mpls
mpls ldp
配置接口下
mpls
mpls ldp
4、配置vpn-instance ABC
ip vpn-instance ABC
ipv4-family
route-distinguisher 14:14
vpn-target 14:14 export-extcommunity
vpn-target 14:14 35:35 import-extcommunity
5、配置接口vpn-instance ABC
interface GigabitEthernet0/0/0
ip binding vpn-instance ABC
ip address 14.1.1.1 255.255.255.0
6、配置vrf ospf
ospf 100 router-id 1.1.1.1 vpn-instance ABC
import-route bgp type 1 //将bgp路由插入ospf
area 0.0.0.0
network 1.1.1.1 0.0.0.0
network 14.1.1.0 0.0.0.255
7、在BGP中调用 vpn-instance ABC
ipv4-family vpn-instance ABC
network 4.4.4.4 255.255.255.255 //宣告路由，也可以插入路由
