H3C S9500 Series Operation Manual page 142

Operation Manual – BGP
H3C S9500 Series Routing Switches
[Switch C-bgp] confederation id 100
[Switch C-bgp] confederation peer-as 1001 1002
[Switch C-bgp] group confed1001 external
[Switch C-bgp] peer confed1001 as-number 1001
[Switch C-bgp] group confed1002 external
[Switch C-bgp] peer confed1002 as-number 1002
[Switch C-bgp] peer 172.68.10.1 group confed1001
[Switch C-bgp] peer 172.68.10.2 group confed1002
[Switch C-bgp] group ebgp200 external
[Switch C-bgp] peer 156.10.1.2 group ebgp200 as-number 200
[Switch C-bgp] group ibgp1003 internal
[Switch C-bgp] peer 172.68.1.2 group ibgp1003
1.4.2 Configuring BGP Route Reflector
I. Network requirements
Switch B receives an update packet passing EBGP and transmits it to Switch C. Switch
C is a reflector with two clients: Switch B and Switch D. When Switch C receives a route
update from Switch B, it will transmit such information to Switch D. It is required to
establish an IBGP connection between Switch B and Switch D, because Switch C
reflects information to Switch D.
II. Network diagram
VLAN 10 0
1.1.1.1/8
S witch A
Figure 1-4 Network diagram for BGP route reflector configuration
III. Configuration procedure
1) Configure Switch A.
[Switch A] interface vlan-interface 2
[Switch A-Vlan-interface2] ip address 192.1.1.1 255.255.255.0
[Switch A-Vlan-interface2] interface Vlan-interface 100
[Switch A-Vlan-interface100] ip address 1.1.1.1 255.0.0.0
[Switch A-Vlan-interface100] quit
[Switch A] bgp 100
[Switch A-bgp] network 1.0.0.0 255.0.0.0
[Switch A-bgp] group ex external
Ne twork
EBG P AS200
1.0.0.0
VLAN 2
192.1.1. 1/24
VLAN 2
192.1.1.2/24
AS100
1-32
Route r eflector
VLAN 4
VLAN 3
194.1.1.1/24
193.1.1.1/24
Switch C
IBG P IBGP
VLAN 3
193.1.1.2/24
Switch B
Client
Chapter 1 BGP Configuration
VLAN 4
194.1.1.2/24
S witch D
C lient