3Com Switch 8800 Advanced Software V5 Configuration Guide

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464 CHAPTER 35: BGP CONFIGURATION

Network diagram

Figure 152 Network diagram for BGP path selection configuration (on switches)

Configuration procedure

1 Configure IP addresses for interfaces (omitted).

2 Configure OSPF on Switch B, C, and D.

# Configure Switch B

<SwitchB> system-view

[SwitchB] ospf

[SwitchB-ospf] area 0

[SwitchB-ospf-1-area-0.0.0.0] network 192.1.1.0 0.0.0.255

[SwitchB-ospf-1-area-0.0.0.0] network 194.1.1.0 0.0.0.255

[SwitchB-ospf-1-area-0.0.0.0] quit

[SwitchB-ospf-1] quit

# Configure Switch C

<SwitchC> system-view

[SwitchC] ospf

[SwitchC-ospf] area 0

[SwitchC-ospf-1-area-0.0.0.0] network 193.1.1.0 0.0.0.255

[SwitchC-ospf-1-area-0.0.0.0] network 195.1.1.0 0.0.0.255

[SwitchC-ospf-1-area-0.0.0.0] quit

[SwitchC-ospf-1] quit

# Configure Switch D

<SwitchD> system-view

[SwitchD] ospf

[SwitchD-ospf] area 0

[SwitchD-ospf-1-area-0.0.0.0] network 194.1.1.0 0.0.0.255

[SwitchD-ospf-1-area-0.0.0.0] network 195.1.1.0 0.0.0.255

Device Interface IP address Device Interface IP address

Switch A Vlan-int101 1.0.0.0/8 Switch D Vlan-int400 195.1.1.1/24

Vlan-int100 192.1.1.1/24 Vlan-int300 194.1.1.1/24

Vlan-int200 193.1.1.1/24 Switch C Vlan-int400 195.1.1.2/24

Switch B Vlan-int100 192.1.1.2/24 Vlan-int200 193.1.1.2/24

Vlan-int300 194.1.1.2/24

Switch A

AS 100

Vlan-int101

Switch C

AS 200

Vlan-int200

Switch B

Switch D

Vlan-int100

Vlan-int200

Vlan-int400

Vlan-int300

Vlan-int300Vlan-int100