HP FlexNetwork 10500 Series Configuration Manual page 271

Device
PE 3
Configuration procedure
1. Configure basic MPLS L3VPN:
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 an MP-IBGP peer relationship between the PEs to advertise VPN IPv4 routes.

Configure the VPN instance of VPN 1 on PE 1 to allow CE 1 to access the network.

Configure the VPN instance of VPN 1 on PE 2 to allow CE 2 to access the network.

Configure the VPN instance of VPN 1 on PE 3 to allow CE 3 to access the network.

Configure BGP as the PE-CE routing protocol, and redistribute routes of the CEs into the

PEs.
For more information about basic MPLS L3VPN configurations, see
L3VPN."
2. Configure BGP AS number substitution:
# Configure BGP AS number substitution on PE 1, PE 2, and PE 3. For more information about
the configuration, see
# Display routing information on CE 2. The output shows that CE 2 has learned the route for
100.1.1.1/32 from CE 1. A routing loop has occurred because CE1 and CE 2 reside in the same
site.
<CE2> display bgp routing-table ipv4 peer 10.2.1.2 received-routes
Total number of routes: 6
BGP local router ID is 1.1.1.9
Status codes: * - valid, > - best, d - dampened, h - history,
Network
* >e 10.1.1.0/24
* 10.2.1.0/24
* 10.2.1.1/32
* >e 10.3.1.0/24
* >e 100.1.1.1/32
* >e 200.1.1.1/32
3. Configure BGP SoO attribute:
# On PE 1, configure the SoO attribute as 1:100 for CE 1.
Interface IP address
Vlan-int2 10.1.1.2/24
Vlan-int3 30.1.1.1/24
Vlan-int4 40.1.1.1/24
Loop0 4.4.4.9/32
Vlan-int6 60.1.1.2/24
Vlan-int7 10.3.1.2/24
"Configuring BGP AS number
s - suppressed, S - stale, i - internal, e - external
Origin: i - IGP, e - EGP, ? - incomplete
NextHop
10.2.1.2
10.2.1.2
10.2.1.2
10.2.1.2
10.2.1.2
10.2.1.2
Device
P
substitution."
MED LocPrf
0
0
262
Interface IP address
Vlan-int4 40.1.1.2/24
Vlan-int5 50.1.1.1/24
Loop0 3.3.3.9/32
Vlan-int3 30.1.1.2/24
Vlan-int5 50.1.1.2/24
Vlan-int6 60.1.1.1/24
"Configuring basic MPLS
PrefVal Path/Ogn
0 100?
0 100?
0 100?
0 100?
0 100 100?
0 100 100?