BGP/MPLS VPNs defined in RFC 2547 allow service providers to use their IP backbone to provide VPN services. BGP is used to distribute VPN routing information to the routers in the backbone network and MPLS is used to forward VPN traffic.

• 在RFC2547中定义的BGP/MPLS VPNs允许服务提供者使用他们的IP骨干提供VPN服务,使用BGP对骨干网络的路由器分发VPN路由信息,使用MPLS转发VPN流量。