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3Com Switch 8800 Configuration Guide Chapter 37 BGP/MPLS VPN Configuration
37-66
Note:
z Enable the exchanging of label-carried IPv4 route between the following routers:
PE1 and ASBR-PE1, PE2 and ASBR-PE2, ASBR-PE1 and ASBR-PE2.
z Make each ASBR-PE change the next hop to its own when it advertises routes to
the PE in the same AS.
z Configure routing policy on each ASBR-PE as follows: make the ASBR-PE assign
MPLS label when it advertises a route received from the PE in this AS to the
ASBR-PE in the peer AS, and let the ASBR-PE assign a new MPLS label when it
advertises a label-carried IPv4 route to the PE in this AS.
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: set up EBGP peer relation with CE1, IBGP peer relation with
ASBR-PE1, and Multihop MP-EBGP peer relation 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 ASBR-PE1: configure the route policy.
[ASBR-PE1] acl number 2001
[ASBR-PE1-acl-basic-2001] rule permit source 202.100.1.2 0
[ASBR-PE1-acl-basic-2001] rule deny source any