562 CHAPTER 49: BGP/MPLS VPN CONFIGURATION
Network diagram
Figure 136 Network diagram for Hub&Spoke
Configuration procedure
n
The following contents are omitted in this case: MPLS basic capacity configuration
between PEs, configuration between PE and P, configuration between CEs. For the
details refer to
“Integrated BGP/MPLS VPN Configuration Example” .
1 Configure PE1
# Configure two VPN-instances on PE1, set specified VPN-target for the routes
received from PE2 and PE3.
[PE1] ip vpn-instance vpn-instance2
[PE1-vpn-vpn-instance2] route-distinguisher 100:2
[PE1-vpn-vpn-instance2] vpn-target 100:11 import-extcommunity
[PE1-vpn-vpn-instance2] vpn-target 100:12 import-extcommunity
[PE1-vpn-instance2] quit
[PE1] ip vpn-instance vpn-instance3
[PE1-vpn-vpn-instance3] route-distinguisher 100:3
[PE1-vpn-vpn-instance3] vpn-target 100:2 export-extcommunity
[PE1-vpn-vpn-instance3] quit
# Set up EBGP adjacency between PE1 and CE1, import intra-CE1 VPN routes
learned into MBGP VPN-instance address family, with one routing loop permitted.
[PE1] bgp 100
[PE1-bgp] ipv4-family vpn-instance vpn-instance2
[PE1-bgp-af-vpn-instance] import-route static
[PE1-bgp-af-vpn-instance] import-route direct
[PE1-bgp-af-vpn-instance] group 17216 external
[PE1-bgp-af-vpn-instance] peer 172.16.1.1 group 17216 as-number 65002
[PE1-bgp-af-vpn-instance] quit
[PE1-bgp] ipv4-family vpn-instance vpn-instance3
[PE1-bgp-af-vpn-instance] import-route static
[PE1-bgp-af-vpn-instance] import-route direct
[PE1-bgp-af-vpn-instance] group 17217 external
[PE1-bgp-af-vpn-instance] peer 172.17.1.1 group 17217 as-number 65002
Internet
CE1
PE1
CE2 PE2
PE3
20.1.1.2
CE3
Hub Site
Spoke Site Spoke Site
VLAN201
172.18.0.1/16
VLAN201
172.16.0.1/16
VLAN202
172.17.0.1/16
VLAN201
172.15.0.1/16
Loopback0
22.1.1.1/32
Loopback0
33.1.1.1/32
Loopback0
11.1.1.1/32
Internet
CE1
PE1
CE2 PE2
PE3
20.1.1.2
CE3
Hub Site
Spoke Site Spoke Site
VLAN201
172.18.0.1/16
Spoke Site Spoke Site
VLAN201
172.18.0.1/16
VLAN201
172.16.0.1/16
VLAN202
172.17.0.1/16
VLAN201
172.15.0.1/16
Loopback0
22.1.1.1/32
Loopback0
33.1.1.1/32
Loopback0
11.1.1.1/32
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