HP 12500 Series Configuration Manual page 332

[PE1-Vlan-interface1] quit
[PE1] ospf 100 vpn-instance vpn1
[PE1-ospf-100] domain-id 10
[PE1-ospf-100] area 1
[PE1-ospf-100-area-0.0.0.1] network 100.1.1.0 0.0.0.255
[PE1-ospf-100-area-0.0.0.1] quit
[PE1-ospf-100] quit
[PE2] bgp 100
[PE1-bgp] ipv4-family vpn-instance vpn1
[PE1-bgp-vpn1] import-route ospf 100
[PE1-bgp-vpn1] import-route direct
[PE1-bgp-vpn1] quit
[PE1-bgp] quit
# Configure PE 2 to allow CE 2 to access the network.
[PE2] ip vpn-instance vpn1
[PE2-vpn-instance-vpn1] route-distinguisher 100:2
[PE2-vpn-instance-vpn1] vpn-target 1:1
[PE2-vpn-instance-vpn1] quit
[PE2] interface vlan-interface 1
[PE2-Vlan-interface1] ip binding vpn-instance vpn1
[PE2-Vlan-interface1] ip address 120.1.1.2 24
[PE2-Vlan-interface1] quit
[PE2] ospf 100 vpn-instance vpn1
[PE2-ospf-100] domain-id 10
[PE2-ospf-100] area 1
[PE2-ospf-100-area-0.0.0.1] network 120.1.1.0 0.0.0.255
[PE2-ospf-100-area-0.0.0.1] quit
[PE2-ospf-100] quit
[PE2] bgp 100
[PE2-bgp] ipv4-family vpn-instance vpn1
[PE2-bgp-vpn1] import-route ospf 100
[PE2-bgp-vpn1] import-route direct
[PE2-bgp-vpn1] quit
[PE2-bgp] quit
After completing the previous configurations, if you issue the display ip routing-table vpn-instance
command on the PEs, you can see that the path to the peer CE is along the OSPF route across the
customer networks, instead of the BGP route across the backbone. Take PE 1 as an example:
[PE1] display ip routing-table vpn-instance vpn1
Routing Tables: vpn1
Destinations : 5
Destination/Mask
20.1.1.0/24
30.1.1.0/24
100.1.1.0/24
100.1.1.2/32
120.1.1.0/24
Configure a sham link.
4.
# Configure PE 1.
Routes : 5
Proto Pre Cost
OSPF 10 1563
OSPF 10 3125
Direct 0 0
Direct 0 0
OSPF 10 3126
324
NextHop Interface
100.1.1.1 Vlan1
100.1.1.1 Vlan1
100.1.1.2 Vlan1
127.0.0.1 InLoop0
100.1.1.1 Vlan1