H3C SR8800 10G Mpls Configuration Manual page 307

Figure 76 Network diagram
Device
CE 1
PE 1
CE 2
Configuration procedure
Configure an IGP (such as OSPF) on the MPLS backbone to ensure IP connectivity within the
1.
backbone.
After you complete the configurations, OSPF adjacencies are established between PE 1, P, and PE
2. Issue the display ospf peer command. The output shows that the adjacency status is Full. Issue
the display ip routing-table command. The output shows that the PEs have learned the loopback
route of each other.
Enable basic MPLS on the PEs
2.
# Configure PE 1.
<PE1> system-view
[PE1] mpls lsr-id 1.1.1.9
[PE1] mpls
[PE1-mpls] quit
# Configure PE 2.
<PE2> system-view
[PE2] mpls lsr-id 2.2.2.9
[PE2] mpls
[PE2-mpls] quit
Configure VPN instances on PEs to allow CEs to access, and apply tunneling policies to the VPN
3.
instances, using a GRE tunnel for VPN packet forwarding
# Configure PE 1.
Interface IP address
GE3/1/1 10.1.1.1/24
Loop0 1.1.1.9/32
GE3/1/1 10.1.1.2/24
POS5/1/2 172.1.1.1/24
Tunnel0 20.1.1.1/24
GE3/1/1 10.2.1.1/24
Device Interface
P POS5/1/1
POS5/1/2
PE 2 Loop0
GE3/1/1
POS5/1/1
Tunnel0
296
IP address
172.1.1.2/24
172.2.1.1/24
2.2.2.9/32
10.2.1.2/24
172.2.1.2/24
20.1.1.2/24