3com S7906E Installation Instruction

1-90

Example for Configuring HoVPN

Network requirements

There are two levels of networks, the backbone and the MPLS VPN networks, as shown in

Figure 1-25

SPEs act as PEs to allow MPLS VPNs to access the backbone.

UPEs act as PEs of the MPLS VPNs to allow end users to access the VPNs.

Performance requirements for the UPEs are lower than those for the SPEs.

SPEs advertise routes permitted by the routing policies to UPEs, permitting CE 1 and CE 3 in VPN

1 to communicate with each other and forbidding CE 2 and CE 4 in VPN 2 to communicate with

each other.

Figure 1-25 Configure HoVPN (on switches)

Device Interface IP

address

Device Interface IP

address

CE 1

Vlan-int12

10.2.1.1/24

CE 3

Vlan-int12

10.1.1.1/24

CE 2

Vlan-int13

10.4.1.1/24

CE 4

Vlan-int13

10.3.1.1/24

UPE 1

Loop0

1.1.1.9/32

UPE 2

Loop0

4.4.4.9/32

Vlan-int11 172.1.1.1/24

Vlan-int11 172.2.1.1/24

Vlan-int12 10.2.1.2/24

Vlan-int12 10.1.1.2/24

Vlan-int13 10.4.1.2/24

Vlan-int13 10.3.1.2/24

SPE 1

Loop0

2.2.2.9/32

SPE 2

Loop0

3.3.3.9/32

Vlan-int11 172.1.1.2/24

Vlan-int11 172.2.1.2/24

Vlan-int12 180.1.1.1/24

Vlan-int12 180.1.1.2/24

Configuration procedure

1) Configure UPE 1

# Configure MPLS basic capability and MPLS LDP to establish LDP LSPs.

<UPE1> system-view

[UPE1] interface loopback 0

[UPE1-LoopBack0] ip address 1.1.1.9 32

[UPE1-LoopBack0] quit

[UPE1] mpls lsr-id 1.1.1.9

[UPE1] mpls

[UPE1-mpls] quit

[UPE1] mpls ldp

[UPE1-mpls-ldp] quit