Configuring Inter-Provider Backbones Option A - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
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[CE] interface Serial2/0/0
[CE-Serial2/0/0] link-protocol ppp
[CE-Serial2/0/0] ip binding vpn-instance CE-VPN2
[CE-Serial2/0/0] ip address 20.1.1.2 255.255.255.0
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[CE] interface Serial3/0/0
[CE-Serial3/0/0] link-protocol ppp
[CE-Serial3/0/0] ip binding vpn-instance CE-VPN2
[CE-Serial3/0/0] ip address 20.2.1.2 255.255.255.0
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[CE] ospf 100 vpn-instance CE-VPN1
[CE-ospf-100] vpn-instance-capability simple
[CE-ospf-100] area 0.0.0.0
[CE-ospf-100-area-0.0.0.0] network 10.1.1.0 0.0.0.255
[CE-ospf-100-area-0.0.0.0] network 10.2.1.0 0.0.0.255
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[CE] ospf 200 vpn-instance CE-VPN2
[CE-ospf-200] vpn-instance-capability simple
[CE-ospf-200] area 0.0.0.1
[CE-ospf-100-area-0.0.0.1] network 20.1.1.0 0.0.0.255
[CE-ospf-100-area-0.0.0.1] network 20.2.1.0 0.0.0.255

3.4.10 Configuring Inter-Provider Backbones Option A

I. Network requirements
CE1 and CE2 belong to the same VPN. CE1 accesses the network through PE1 in AS
100 and CE2 accesses the network through PE2 in AS 200.
Multi-AS BGP/MPLS VPN is implemented using Option A method. (That is,
VPN-INSTANCE-to-VPN-INSTANCE method is used to manage VPN routes).
The MPLS backbone network in the same AS adopts OSPF as the IGP.
Chapter 3 BGP/MPLS VPN Configuration
3Com Corporation
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