拓撲及規劃：

CE1 地址為10.0.12.1/24，10.0.13.1/24，1.1.1.1 ， 宣告進ospf，bgp as-number 10，與ce2 ce3 建立bgp v4 鄰居
CE2 CE3 類似

step 1：

　　介面配置地址，ospf ，bgp 配置完畢

[ce1]disp ospf pe b
OSPF Process 1 with Router ID 10.0.12.1
                   Peer Statistic Information
Total number of peer(s): 2       
 Peer(s) in full state: 2
 
       
-----------------------------------------------------------------------------
 Area Id         Interface                  Neighbor id          State       
 0.0.0.0         GE1/0/0                    10.0.12.2            Full        
 0.0.0.0         GE1/0/1                    10.0.13.1            Full        
 
-----------------------------------------------------------------------------
[ce1]disp bgp pe
 BGP local router ID        : 10.0.12.1
 Local AS number            : 10
 Total number of peers      : 2                
 Peers in established state : 2

  Peer            V          AS  MsgRcvd  MsgSent  OutQ  Up
 
/Down       State  PrefRcv
  2.2.2.2         4          10        3        3     0 00:00:30 Established        0
  3.3.3.3         4          10        3        4     0 00:00:17 Established        0

step 2：