Configuring An Ospf Sham Link - HP FlexNetwork HSR6600 Configuration Manual

Configuring an OSPF sham link

Network requirements
As shown in
1 and PE 2 so traffic between the CEs is forwarded through the MPLS backbone instead of the
backdoor link.
Figure 82 Network diagram
Table 23 Interface and IP address assignment
Device
CE 1
PE 1
Router A
Configuration procedure
1. Configure OSPF on the customer networks:
# Configure conventional OSPF on CE 1, Router A, and CE 2 to advertise addresses of the
interfaces (see
# Set the cost value to 2 for both the link between CE 1 and Router A, and the link between CE
2 and Router A. (Details not shown.)
# Execute the display ip routing-table command to verify that CE 1 and CE 2 have learned the
route to each other. (Details not shown.)
2. Configure MPLS L3VPN on the backbone:
# Configure basic MPLS and MPLS LDP on PE 1 to establish LDP LSPs.
<PE1> system-view
[PE1] interface loopback 0
Figure 82, CE 1 and CE 2 belong to VPN 1. Configure an OSPF sham link between PE
Interface IP address
GE1/1/1 100.1.1.1/24
S1/1/1 20.1.1.1/24
Loop0 1.1.1.9/32
Loop1 3.3.3.3/32
GE1/1/1 100.1.1.2/24
S1/1/1 10.1.1.1/24
S1/1/0 30.1.1.1/24
S1/1/1 20.1.1.2/24
Table 23). (Details not shown.)
Device Interface
CE 2 GE1/1/1
S1/1/1
PE 2 Loop0
Loop1
GE1/1/1
S1/1/0
305
IP address
120.1.1.1/24
30.1.1.2/24
2.2.2.9/32
5.5.5.5/32
120.1.1.2/24
10.1.1.2/24