H3C S7500E Series Ethernet Switches Operation Manual

Operation Manual – IPv4 Routing

H3C S7500E Series Ethernet Switches Chapter 5 BGP Configuration

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II. Network diagram

Device Interface IP address Device Interface IP address

Switch A Vlan-int101 1.0.0.1/8 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

Figure 5-22 Network diagram for BGP path selection configuration

III. 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