H3C Technologies H3C SR8800 - Manual (Page 356)

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30.1.1.0/24 OSPF 10 1574 100.1.1.2 GE4/1/1
100.1.1.0/24 Direct 0 0 100.1.1.1 GE4/1/1
100.1.1.1/32 Direct 0 0 127.0.0.1 InLoop0
120.1.1.0/24 OSPF 10 12 100.1.1.2 GE4/1/1
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
Issue the display ospf sham-link command on the PEs. You can see the established sham link. Take PE 1
as an example:
[PE1] display ospf sham-link
OSPF Process 100 with Router ID 100.1.1.2
Sham Link:
Area NeighborId Source-IP Destination-IP State Cost
0.0.0.1 120.1.1.2 3.3.3.3 5.5.5.5 P-2-P 10
Issue the display ospf sham-link area command. You can see that the peer state is Full:
[PE1] display ospf sham-link area 1
OSPF Process 100 with Router ID 100.1.1.2
Sham-Link: 3.3.3.3 --> 5.5.5.5
Neighbor ID: 120.1.1.2 Neighbour State: Full
Area: 0.0.0.1
Cost: 10 State: P-2-P Type: Sham
Timers: Hello 10, Dead 40, Retransmit 5, Transmit Delay 1
Configuring BGP AS number substitution
Network requirements
As shown in Figure 84 , CE 1 and CE 2 belong to VPN 1 and are connected to PE 1 and PE 2 respectively.
In addition, they use the same AS number 600.
Figure 84 Configure BGP AS number substitution
Device Interface IP address Device Interface IP address
CE 1 GE4/1/1 10.1.1.1/24 P Loop0 2.2.2.9/32
GE4/1/2 100.1.1.1/24 GE4/1/1 20.1.1.2/24