公开(公告)号：US20170324707A1

公开(公告)日：2017-11-09

申请号：US15145250

申请日：2016-05-03

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Dimitri Krinos ,  Gary R. Flack ,  Adrian Cepleanu

IPC: H04L29/06 ,  H04L12/741 ,  H04L12/46 ,  H04L12/723

CPC classification number: H04L63/0428 ,  H04L12/4604 ,  H04L12/4633 ,  H04L12/4641 ,  H04L45/50 ,  H04L45/64 ,  H04L63/0272

Abstract: In a network service provider environment, the service provider infrastructure is protected by separating internet routing from the default context and placing it within a virtual private network context. Packets received from the public internet are encapsulated for transit through the service provider infrastructure based on the packet source being the public internet. MPLS VPN technology may be used in the encapsulation technique. The architecture removes the public part of the underlay network and tunnels it through a new overlay. The result is that internet traffic is contained in a separate routing domain, hiding the network infrastructure from that untrusted service traffic that transits the network.