The present invention discloses a MPLS/BGP VPN gateway-based network method comprising: interposing one or more Multi Protocol Label Switching Virtual Private Network (MPLS VPN) gateways between a first ISP network and a second ISP network, connecting the MPLS/BGP VPN gateway with the first ISP network and the second ISP network and at the same time connect the MPLS/BGP VPN gateway with a Custom Edge Router (CE) in the first ISP subscriber's network, and activating protocol transmissions on the MPLS/BGP VPN gateway to provide MPLS/BGP VPN services. The present invention enables ISPs to provide MPLS/BGP VPN services quickly with low investment and make use of conventional network without comprehensive reconstruction, which enhances competitive power and protect conventional investment.
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