Huawei Quidway S3500 Series - Page 245

Operation Manual - Routing Protocol
Quidway S3500 Series Ethernet Switches Chapter 5 BGP Configuration
Huawei Technologies Proprietary
5-27
[Switch C-bgp] peer 172.68.10.2 as-number 1002
[Switch C-bgp] peer 156.10.1.2 as-number 200
[Switch C-bgp] peer 172.68.1.2 as-number 1003
5.4.2 Configuring BGP Route Reflector
I. Networking 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. Networking diagram
IBGP IBGP
EBGP
Client
Client
Route reflector
VLAN 4
194.1.1.1/24
VLAN 3
193.1.1.1/24
VLAN 3
193.1.1.2/24
VLAN 4
194.1.1.2/24
VLAN 2
192.1.1.2/24
VLAN 2
192.1.1.1/24
AS100
AS200
Network
1.0.0.0
VLAN 100
1.1.1.1/8
Switch A
Switch B
Switch C
Switch D
Figure 5-3 Networking diagram of configuring BGP route reflector
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 mask 255.0.0.0
[Switch A-bgp] peer 192.1.1.2 as-number 200
2) Configure Switch B:
# Configure VLAN 2:
[Switch B] interface Vlan-interface 2