3Com 3C13636 Configuration Manual page 957

3Com Router 3000 Ethernet Family
Configuration Guide
Note:
In this part:
The configurations on CE1 and CE2 are the same as those in section 3.4.11
"Configuring Inter-Provider Backbones Option B".
The exchange of labeled IPv4 routes is configured between PE1 and ASBR-PE1,
PE2 and ASBR-PE2, ASBR-PE1 and ASBR-PE2.
ASBR-PE varies the next hop to itself when advertising routes to PEs in the same
AS.
Route-policy is configured on ASBR-PE. For the routes received from PEs in the
same AS, ASBR-PE assigns MPLS labels for them when they are advertised to the
ASBR of the remote AS. For the routes advertised to PEs in the same AS, ASBR-PE
assigns new MPLS labels for them if they are labeled IPv4 routes.
# Configure CE1.
[CE1] bgp 65001
[CE1-bgp] group 20 external
[CE1-bgp] peer 168.1.1.1 group 20 as-number 100
[CE1-bgp] quit
# Configure PE1 to establish EBGP peer relationship with CE1, IBGP peer relationship
with ASBR-PE1, and Multihop MP-EBGP peer relationship with PE2.
[PE1] bgp 100
[PE1-bgp] ipv4-family vpn-instance vpna
[PE1-bgp-af-vpn-instance] group 10 external
[PE1-bgp-af-vpn-instance] peer 168.1.1.2 group 10 as-number 65001
[PE1-bgp-af-vpn-instance] import-route direct
[PE1-bgp-af-vpn-instance] quit
[PE1-bgp] group 20
[PE1-bgp] peer 20 label-route-capability
[PE1-bgp] peer 202.100.1.1 group 20
[PE1-bgp] peer 202.100.1.1 connect-interface loopback0
[PE1-bgp] group 30 external
[PE1-bgp] peer 30 ebgp-max-hop
[PE1-bgp] peer 200.200.1.2 group 30 as-number 200
[PE1-bgp] peer 200.200.1.2 connect-interface loopback0
[PE1-bgp] ipv4-family vpnv4
[PE1-bgp-af-vpn] peer 30 enable
[PE1-bgp-af-vpn] peer 200.200.1.2 group 30
[PE1-bgp-af-vpn] quit
[PE1-bgp] quit
# Configure route-policy on ASBR-PE1.
Chapter 3 BGP/MPLS VPN Configuration
3Com Corporation
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