BGP联盟

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1.

每台路由器设置loop back口，r1和r6另外多设置两个

2.

R2 R3 R4 R5 R6做ospf

以R2为例：

ospf 1 router-id 2.2.2.2
 area 0.0.0.0
  network 2.2.2.0 0.0.0.255
  network 23.1.1.0 0.0.0.255

3.

R1 R2 建立EBGP邻居并宣告自己

R1为例：

bgp 100
 peer 12.1.1.2 as-number 200
 #
  network 1.1.1.0 255.255.255.0
  network 2.2.2.0 255.255.255.0
  network 11.11.11.0 255.255.255.0
  network 12.1.1.0 255.255.255.0
  peer 12.1.1.2 enable

R2:

bgp 65001
 confederation id 200
 peer 12.1.1.1 as-number 100
#
 ipv4-family unicast
  undo synchronization
  network 2.2.2.0 255.255.255.0
  network 6.6.6.0 255.255.255.0
  network 12.1.1.0 255.255.255.0 
  network 66.66.66.0 255.255.255.0

注入ospf：

  import-route ospf 1

4。

R2 和R3建立Ebgp邻居

R2:

bgp 65001
 confederation id 200
 confederation peer-as 65002
 peer 12.1.1.1 as-number 100
 peer 23.1.1.3 as-number 65002
 #
 ipv4-family unicast
  undo synchronization
  network 2.2.2.0 255.255.255.0
  network 6.6.6.0 255.255.255.0
  network 12.1.1.0 255.255.255.0
  network 23.1.1.0 255.255.255.0
  network 66.66.66.0 255.255.255.0
  import-route ospf 1
  peer 12.1.1.1 enable
  peer 23.1.1.3 enable

R3:

bgp 65002
 confederation id 200
 confederation peer-as 65001
 peer 23.1.1.2 as-number 65001
 #
 ipv4-family unicast
  undo synchronization
  peer 23.1.1.2 enable

5.

R3和R4建立IBGP 邻居

R3:

bgp 65002

 confederation id 200

[Huawei-bgp]confederation peer-as 65002

[Huawei-bgp]peer 34.1.1.4 as-number 65002

后两句话不能反这写

R4:

bgp 65002
 confederation id 200
 peer 34.1.1.3 as-number 65002
 #
 ipv4-family unicast
  undo synchronization
  peer 34.1.1.3 enable

R3与R5建立EBGP邻居：

R3:

bgp 65002
 confederation id 200
 confederation peer-as 65001 65003
 peer 23.1.1.2 as-number 65001
 peer 34.1.1.4 as-number 65002
 peer 35.1.1.5 as-number 65003
 #
 ipv4-family unicast
  undo synchronization
  peer 23.1.1.2 enable
  peer 34.1.1.4 enable
  peer 35.1.1.5 enable

R5:

#
bgp 65003
 confederation id 200
 confederation peer-as 65002
 peer 35.1.1.3 as-number 65002

R5与R6建立IBGP:

R5:

bgp 65003
 confederation id 200
 confederation peer-as 65002
 peer 35.1.1.3 as-number 65002
 peer 56.1.1.6 as-number 65003
 #
 ipv4-family unicast
  undo synchronization
  peer 35.1.1.3 enable
  peer 56.1.1.6 enable

R6:

bgp 65003
 confederation id 200
 peer 56.1.1.5 as-number 65003

此时全网通

OVER 啦啦啦啦啦

 

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