3Com 3C13636 Configuration Manual page 949

3Com Router 3000 Ethernet Family
Configuration Guide
When pinging CE on PE, you need to specify the VPN to which the destination address
belongs.
For example, ping CE1 on PE1:
[PE1] ping -vpn-instance vpna 168.1.1.2
4) Configuring MP-BGP, establishing IBGP peer relationship between PEs, and
establishing EBGP peer relationship between PE and CE
Note:
In this part:
The configurations on CE1, CE2, PE1, and PE2 are the same as those in section
3.4.10 "Configuring Inter-Provider Backbones Option A".
Special configurations are necessary on ASBR-PE1 and ASBR-PE2: configuring
the undo policy vpn-target command in VPNv4 address family view and
configuring the next-hop-local command on IBGP peers in the 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 to establish EBGP peer relationship with CE1 and IBGP peer
relationship with ASBR-PE1.
[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 202.100.1.1 group 20
[PE1-bgp] peer 202.100.1.1 connect-interface loopback0
[PE1-bgp] ipv4-family vpnv4
[PE1-bgp-af-vpn] peer 20 enable
[PE1-bgp-af-vpn] peer 202.100.1.1 group 20
[PE1-bgp-af-vpn] quit
[PE1-bgp] quit
# Configure ASBR-PE1 to establish EBGP peer relationship with ASBR-PE2 and IBGP
peer relationship with PE1.
Chapter 3 BGP/MPLS VPN Configuration
3Com Corporation
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