Bgp Confederation Configuration Example - HP 6125XLG Layer 3 - Ip Routing Configuration Manual

Network
i 20.0.0.0
Switch D has learned route 20.0.0.0/8 from Switch C.

BGP confederation configuration example

Network requirements
As shown in
AS65002, and AS65003. Switches in AS65001 are fully meshed.
Figure 69 Network diagram
Switch F
Vlan-int600
Vlan-int100
AS 100
Device
Switch A
Switch B
Switch C
Configuration procedure
1. Configure IP addresses for interfaces. (Details not shown.)
2. Configure BGP confederation:
# Configure Switch A.
<SwitchA> system-view
[SwitchA] bgp 65001
[SwitchA-bgp] router-id 1.1.1.1
[SwitchA-bgp] confederation id 200
[SwitchA-bgp] confederation peer-as 65002 65003
[SwitchA-bgp] peer 10.1.1.2 as-number 65002
[SwitchA-bgp] peer 10.1.2.2 as-number 65003
NextHop
193.1.1.2
Figure 69, to reduce IBGP connections, AS 200 is split into three sub-ASs: AS65001,
Switch B
Vlan-int200
AS 65002
Vlan-int100
Vlan-int400
Switch A
Vlan-int500
Vlan-int500
AS 200
Interface IP address
Vlan-int100 200.1.1.1/24
Vlan-int200 10.1.1.1/24
Vlan-int300 10.1.2.1/24
Vlan-int400 10.1.3.1/24
Vlan-int500 10.1.4.1/24
Vlan-int200 10.1.1.2/24
Vlan-int300 10.1.2.2/24
MED LocPrf
0 100
Switch C
Vlan-int300
AS 65003
Switch D
Vlan-int400
Vlan-int200
AS 65001
Vlan-int200
Switch E
Device
Switch D
Switch E
Switch F
276
PrefVal Path/Ogn
0 100i
Interface IP address
Vlan-int200 10.1.5.1/24
Vlan-int400 10.1.3.2/24
Vlan-int200 10.1.5.2/24
Vlan-int500 10.1.4.2/24
Vlan-int100 200.1.1.2/24
Vlan-int600 9.1.1.1/24