Method for forming a service order to virtual private network layer, and the device to form a service order to virtual private network layer

摘要

Summary method to form a service order, the order of virtual private network layer, and the device to form a service order to virtual private network layer, this is a method and device for forming a service order to l3vpn. The method includes that: a.Any VRF not labelled in any node of PE is selected as a VRF entry and the VRF entry is defined as a VRF initial; B.It is determined if the initial VRF is configured with an RT and is configured with an RT, a VRF not labelled in a complete network is researched by a VRF associated with initial VRF according to a rule and a VRF dynamics associated with the initial VRF found is labeled, it is determined if the VRF ini SEC is configured with a VPN label and is configured with a label of VPN.A VRF not labelled in the whole network is researched by a VRF associated with initial VRF according to a static rule and the VRF associated with initial VRF found is labelled; C. the step B is repeated in each VRF associated with initial VRF found as an initial VRF new until All the VRFs together are found; and D.A service order to l3vpn is generated by combining all the VRFs together that include VRF entry. With this revelation, the disadvantages in the formation of a service order to l3vpn in previous technique are avoided effectively. 19 / 19 1 / 5 to 1 / 1