H3C Technologies H3C S12500-X Series Switches - Manual (Page 277)

263
Network NextHop MED LocPrf PrefVal Path/Ogn
i 20.0.0.0 193.1.1.2 0 100 0 100i
Switch D has learned route 20.0.0.0/8 from Switch C.
345B
BGP confederation configuration example
624B
Network requirements
As shown in
1164H
Figure 65 , to reduce IBGP connections, AS 200 is split into three sub-ASs: AS65001,
AS65002, and AS65003. Switches in AS65001 are fully meshed.
Figure 65 Network diagram
Device Interface IP address Device Interface IP address
Switch A Vlan-int100 200.1.1.1/24 Switch D Vlan-int200 10.1.5.1/24
Vlan-int200 10.1.1.1/24 Vlan-int400 10.1.3.2/24
Vlan-int300 10.1.2.1/24 Switch E Vlan-int200 10.1.5.2/24
Vlan-int400 10.1.3.1/24 Vlan-int500 10.1.4.2/24
Vlan-int500 10.1.4.1/24 Switch F Vlan-int100 200.1.1.2/24
Switch B Vlan-int200 10.1.1.2/24 Vlan-int600 9.1.1.1/24
Switch C Vlan-int300 10.1.2.2/24
625B
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
Switch F
Switch A
Switch D
Switch E
AS 200
AS 100
Vlan-int600
Switch B Switch C
AS 65002 AS 65003
Vlan-int100
Vlan-int100
AS 65001
Vl
an
-int300
Vlan-int400
Vlan-int500
Vlan-int400
Vlan-int500 Vlan-int200
Vlan-int200
Vlan-int300
Vlan-int200