H3C SR8800 10G Mpls Configuration Manual page 312

Figure 77 Network diagram
MPLS backbone
AS 100
PE 1
CE 1
AS 65001
Device
CE 1
PE 1
ASBR-PE1
Configuration procedure
Configure an IGP (such as OSPF) on the MPLS backbone to ensure IP connectivity in the backbone.
1.
(Details not shown)
NOTE:
The 32-bit loopback interface address used as the LSR ID needs to be advertised by OSPF.
After you complete the configurations, each ASBR PE and the PE in the same AS can establish
OSPF adjacencies. Issue the display ospf peer verbose command. The output shows that the
adjacencies reach the Full state, and that PEs can learn the routes to the loopback interfaces of
each other.
Each ASBR PE and the PE in the same AS can ping each other.
Configure basic MPLS and MPLS LDP on the MPLS backbone to establish LDP LSPs
2.
# Configure basic MPLS on PE 1 and enable MPLS LDP on the interface connected to ASBR PE 1.
<PE1> system-view
[PE1] mpls lsr-id 1.1.1.9
[PE1] mpls
[PE1-mpls] quit
[PE1] mpls ldp
[PE1-mpls-ldp] quit
Loop0
POS2/1/2
POS2/1/1
ASBR-PE 1
Loop0
POS2/1/1
GE4/1/2
GE4/1/1
Interface IP address
GE4/1/1 10.1.1.1/24
Loop0 1.1.1.9/32
GE4/1/2 10.1.1.2/24
POS2/1/1 172.1.1.1/24
Loop0 2.2.2.9/32
POS2/1/1 172.1.1.2/24
POS2/1/2 192.1.1.1/24
Loop0
POS2/1/2
POS2/1/1
ASBR-PE 2
POS2/1/1
GE4/1/2
GE4/1/1
AS 65002
Device
CE 2
PE 2
ASBR-PE2
301
MPLS backbone
AS 200
Loop0
PE 2
CE 2
Interface IP address
GE4/1/1 10.2.1.1/24
Loop0 4.4.4.9/32
GE4/1/2 10.2.1.2/24
POS2/1/1 162.1.1.1/24
Loop0 3.3.3.9/32
POS2/1/1 162.1.1.2/24
POS2/1/2 192.1.1.2/24