3Com 7757 Configuration Manual page 371

Network diagram
Figure 85 Diagram for configuring a BGP RR
VLAN-int100
Switch A
VLAN-int2
AS 100
Device Interface
Switch A Vlan-int 100
Vlan-int 2
Switch B Vlan-int 2
Vlan-int 3
Switch C Vlan-int 3
Vlan-int 4
Switch D Vlan-int 4
Configuration procedure
1 Configure SwitchA.
[SwitchA] interface vlan-interface 2
[SwitchA-Vlan-interface2] ip address 192.1.1.1 255.255.255.0
[SwitchA-Vlan-interface2] interface Vlan-interface 100
[SwitchA-Vlan-interface100] ip address 1.1.1.1 255.0.0.0
[SwitchA-Vlan-interface100] quit
[SwitchA] bgp 100
[SwitchA-bgp] group ex external
[SwitchA-bgp] peer 192.1.1.2 group ex as-number 200
[SwitchA-bgp] network 1.0.0.0 255.0.0.0
2 Configure SwitchB.
# Configure VLAN2.
[SwitchB] interface Vlan-interface 2
[SwitchB-Vlan-interface2] ip address 192.1.1.2 255.255.255.0
# Configure VLAN3.
[SwitchB] interface Vlan-interface 3
[SwitchB-Vlan-interface3] ip address 193.1.1.2 255.255.255.0
# Configure a BGP peer.
[SwitchB] bgp 200
[SwitchB-bgp] group ex external
[SwitchB-bgp] peer 192.1.1.1 group ex as-number 100
Router
Reflector
Switch C
VLAN -int3
AS 200
Switch B
IP address
1.1.1.1/8
192.1.1.1/24
192.1.1.2/24
193.1.1.2/24
193.1.1.1/24
194.1.1.1/24
194.1.1.2/24
Configuration Example
VLAN -int4
Switch D
AS
100
200
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