FIELD: radio engineering, communication.
SUBSTANCE: method includes the following steps: A . selecting any unmarked VRF of any PE node as an entering VRF, and setting the entering VRF as an initial VRF; B. determining whether the initial VRF has RT value or not, when the initial VRF has RT value, searching for the unmarked VRF in the entire network for the VRF associated with the initial VRF; determining whether the initial VRF has VPN tag or not, and when the initial VRF has VPN tag, searching for the unmarked VRF in the entire network for the VRF associated with the initial VRF according to a static rule and establishing marking for the found initial VRF associated with the initial VRF; C. repeating step B, using as a new initial VRF every found VRF associated with the initial VRF until all VRF associated with each other are found; D. generating a L3VPN peer-to-peer service by combining all associated VRF, including the entering VRF.
EFFECT: faster delivery of a L3VPN peer-to-peer service.
10 cl, 6 dwg, 1 tbl
