BGP基础操作

R1、R2

[r1]bgp 100
[r1-bgp]router-id 1.1.1.1
[r1-bgp]peer 12.0.0.2 as-number 200

[r2]bgp 200
[r2-bgp]router-id 2.2.2.2
[r2-bgp]peer 12.0.0.1 as-number 100

AS 200内部

[r2]ospf 1 rout	
[r2]ospf 1 router-id 2.2.2.2
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]network 23.0.0.2 0.0.0.0	
[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]q
[r2-ospf-1]q
[r2]
[r2]bgp 200
[r2-bgp]router-id 2.2.2.2	
[r2-bgp]peer 3.3.3.3 as-number 200
[r2-bgp]peer 3.3.3.3 connect-interface LoopBack 0
[r2-bgp]

[r3]ospf 1 rou	
[r3]ospf 1 router-id 3.3.3.3
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[r3-ospf-1-area-0.0.0.0]network 23.0.0.3 0.0.0.0
[r3-ospf-1-area-0.0.0.0]q
[r3-ospf-1]q
[r3]bgp 200	
[r3-bgp]router-id 3.3.3.3
[r3-bgp]peer 2.2.2.2 as-number 200
[r3-bgp]peer 2.2.2.2 connect-interface LoopBack 0
[r3-bgp]router-id 3.3.3.3
[r3-bgp]peer 4.4.4.4 as-number 200
[r3-bgp]peer 4.4.4.4 connect-interface LoopBack 0

[r4]ospf 1 router-id 4.4.4.4
[r4-ospf-1]area 0	
[r4-ospf-1-area-0.0.0.0]network 4.4.4.4 0.0.0.0
[r4-ospf-1-area-0.0.0.0]network 34.0.0.4 0.0.0.0
[r4-ospf-1-area-0.0.0.0]q
[r4-ospf-1]q
[r4]
[r4]bgp 200
[r4-bgp]router-id 4.4.4.4	
[r4-bgp]peer 3.3.3.3 as-number 200	
[r4-bgp]peer 3.3.3.3 connect-interface LoopBack 0
[r4-bgp]

R4、R5

[r4]bgp 200	
[r4-bgp]peer 5.5.5.5 as-number 300	
[r4-bgp]peer 5.5.5.5 connect-interface LoopBack 0
[r4-bgp]q
[r4]ip route-static 5.5.5.5 32 45.0.0.5
[r4]bgp 200
[r4-bgp]peer 5.5.5.5 ebgp-max-hop 2
[r4-bgp]

[r5]bgp 300
[r5-bgp]router-id 5.5.5.5	
[r5-bgp]peer 4.4.4.4 as-number 200	
[r5-bgp]peer 4.4.4.4 connect-interface LoopBack 0
[r5-bgp]q
[r5]ip route-static 4.4.4.4 32 45.0.0.4
[r5]bgp 300	
[r5-bgp]peer 4.4.4.4 ebgp-max-hop 2
[r5-bgp]