Configuring bgp as number substitution, Network requirements, Configuring mpls l3vpn inter-as option a – H3C Technologies H3C S12500-X Series Switches User Manual
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Area Neighbor ID 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
# Execute the display ospf sham-link area command. The output shows 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 State: Full
Area: 0.0.0.1
Cost: 10 State: P-2-P Type: Sham
Timers: Hello 10s, Dead 40s, Retransmit 5s, Transmit Delay 1s
Request list: 0 Retransmit list: 0
Configuring BGP AS number substitution
Network requirements
As shown in
, CE 1 and CE 2 belong to VPN 1 and are connected to PE 1 and PE 2. The two
CEs have the same AS number, 600. Configure BGP AS number substitution on the PEs to enable the CEs
to communicate with each other.
Figure 56 Network diagram
Device
Interface
IP address
Device
Interface
IP address
CE 1
Vlan-int11
10.1.1.1/24
P
Loop0
2.2.2.9/32
Vlan-int12
100.1.1.1/24
Vlan-int11 30.1.1.1/24
PE 1
Loop0
1.1.1.9/32
Vlan-int12
20.1.1.2/24
Vlan-int11
10.1.1.2/24
PE 2
Loop0
3.3.3.9/32
Vlan-int12
20.1.1.1/24
Vlan-int11 30.1.1.2/24
CE 2
Vlan-int12
10.2.1.1/24
Vlan-int12
10.2.1.2/24
Vlan-int13
200.1.1.1/24