HP 10500 Series Configuration Manual page 181

Configuration procedure
Configuring basic MPLS L3VPN:
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 relationship between the PEs to advertise VPNv4 routes.
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 1 to allow CE 1 to access the network.
Configure BGP between PE 1 and CE 1, and between PE 2 and CE 2 and redistribute routes
of CEs into PEs.
After completing the configurations, execute the display ip routing-table command on CE 2. You
can see that CE 2 has learned the route to network 10.1.1.0/24, where the interface used by CE
1 to access PE 1 resides, but it has not learned the route to the VPN (100.1.1.0/24) behind CE 1.
The situation on CE 1 is similar.
<CE2> display ip routing-table
Destinations : 17
Destination/Mask
0.0.0.0/32
10.1.1.0/24
10.2.1.0/24
10.2.1.0/32
10.2.1.1/32
10.2.1.255/32
127.0.0.0/8
127.0.0.0/32
127.0.0.1/32
127.255.255.255/32
200.1.1.0/24
200.1.1.0/32
200.1.1.1/32
200.1.1.255/24
224.0.0.0/4
224.0.0.0/24
255.255.255.255/32
# Execute the display ip routing-table vpn-instance command on the PEs. You can see the route to
the VPN behind the peer CE. Take PE 2 as an example:
<PE2> display ip routing-table vpn-instance vpn1
Destinations : 15
Destination/Mask
0.0.0.0/32
10.1.1.0/24
10.2.1.0/24
Routes : 17
Proto Pre Cost
Direct 0 0
BGP 255 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Direct 0 0
Routes : 15
Proto Pre Cost
Direct 0 0
BGP 255 0
Direct 0 0
175
NextHop Interface
127.0.0.1 InLoop0
10.2.1.2 Vlan12
10.2.1.1 Vlan12
10.2.1.1 Vlan12
127.0.0.1 InLoop0
10.2.1.1 Vlan12
127.0.0.1 InLoop0
127.0.0.1 InLoop0
127.0.0.1 InLoop0
127.0.0.1 InLoop0
200.1.1.1 Vlan13
200.1.1.1 Vlan13
127.0.0.1 InLoop0
200.1.1.1 Vlan13
0.0.0.0 NULL0
0.0.0.0 NULL0
127.0.0.1 InLoop0
NextHop Interface
127.0.0.1 InLoop0
1.1.1.9 Vlan11
10.2.1.2 Vlan12