Configuring Bgp As Number Substitution And Soo - HP 12500 Series Configuration Manual

Configuring BGP AS number substitution and SoO

Network requirements
CE 1, CE 2, and CE 3 belong to VPN 1 and connect to PE1, PE 2, and PE 3 respectively. CE 1 and CE
2 reside in the same site. CE1, CE2, and CE 3 all use AS number 600.
To avoid route loss, configure BGP AS number substitution on PEs. To avoid routing loops, configure a
routing policy on PE1 and PE2 respectively to add the SoO attribute to routes received from CE 1 and CE
2.
Figure 79 Network diagram
Device
CE 1
CE 2
PE 1
PE 3
Configuration procedure
Configure basic MPLS L3VPN. (Details not shown)
1.
Configure OSPF on the MPLS backbone to allow the PEs and P device to learn the routes of the
loopback interfaces from each other.
Configure basic MPLS and MPLS LDP on the MPLS backbone to establish LDP LSPs.
Establish MP-iBGP peer relationships between the PEs to advertise VPN IPv4 routes.
Configure VPN 1 on PE 1 to allow CE 1 to access the network.
Configure VPN 1 on PE 2 to allow CE 2 to access the network.
Interface IP address
Loop0 100.1.1.1/32
Vlan-int2 10.1.1.1/24
Vlan-int2 10.2.1.1/24
Loop0 1.1.1.9/32
Vlan-int2 10.1.1.2/24
Vlan-int3 30.1.1.1/24
Vlan-int4 20.1.1.1/24
Loop0 4.4.4.9/32
Vlan-int6 50.1.1.2/24
Vlan-int7 10.3.1.2/24
Device Interface
CE 3 Loop0
Vlan-int7
PE 2 Loop0
Vlan-int2
Vlan-int4
Vlan-int5
P Loop0
Vlan-int3
Vlan-int5
Vlan-int6
334
IP address
200.1.1.1/32
10.3.1.1/24
2.2.2.9/32
10.2.1.2/24
20.1.1.2/24
40.1.1.1/24
3.3.3.9/32
30.1.1.2/24
40.1.1.2/24
50.1.1.1/24