Network requirements – H3C Technologies H3C S7500E Series Switches User Manual
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[PE-ospf-10-area-0.0.0.0] network 10.214.30.0 0.0.0.255
# Display the information about the routes of VPN1 on PE.
[PE-ospf-10-area-0.0.0.0] display ip routing-table vpn-instance vpn1
Routing Tables: vpn1
Destinations : 6 Routes : 6
Destination/Mask Proto Pre Cost NextHop Interface
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
10.214.30.0/24 Direct 0 0 10.214.30.1 Vlan30
10.214.30.2/32 Direct 0 0 127.0.0.1 InLoop0
100.100.10.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.0.0/16 O_ASE 150 1 10.214.30.1 Vlan30
As shown in the displayed information above, the static routes of VPN1 have been imported to the
OSPF routing table between MCE and PE.
Create OSPF process 20 and import the routing information of VPN2, which is similar to the above
procedure. The only difference lies in that RIP routes rather than static routes are imported to the
OSPF routing table of MCE. The detailed configuration procedures are omitted here. The
information displayed below verifies the configuration.
display ip routing-table vpn-instance vpn2
Routing Tables: vpn2
Destinations : 6 Routes : 6
Destination/Mask Proto Pre Cost NextHop Interface
127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0
127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0
10.214.40.0/24 Direct 0 0 10.214.40.1 Vlan40
10.214.40.2/32 Direct 0 0 127.0.0.1 InLoop0
200.200.20.1/32 Direct 0 0 127.0.0.1 InLoop0
192.168.10.0/24 O_ASE 150 1 10.214.40.1 Vlan40
After the above configurations, the routing information of VPN1 and VPN2 can be advertised to PE
properly.
Using BGP to Redistribute VPN Routes Between an MCE and PE
Network requirements
z
An S7500E switch functions as MCE. It is required that VPN routes of site 1 and site 2 be
advertised to the PE for the purpose that VPNs at both ends of the MPLS backbone network
can communicate with each other properly.
z
OSPF runs within both site 1 and site 2, and EBGP runs between MCE and PE.