公开(公告)号：US11792042B1

公开(公告)日：2023-10-17

申请号：US17302303

申请日：2021-04-29

Applicant: Cisco Technology, Inc.

Inventor： Christian Schmutzer ,  Onkar R. Deshpande ,  Patrick J. Cunningham

IPC: H04L12/46 ,  H04L45/50 ,  H04L45/00

CPC classification number: H04L12/4633 ,  H04L45/50 ,  H04L45/66 ,  H04L2212/00

Abstract: Interworking between different layer two (L2) medias using network tunnels is provided by receiving, at a virtual gateway network element (GNE), a packet from a first L2 media type network for transmission to a second L2 media type network under the control of a different entities, wherein the first and second L2 media type networks are incompatible for direct packet transmission; removing, at the virtual GNE, ethernet encapsulation from the packet; re-encapsulating, at a network device located between the virtual GNE and a packet network, the packet in a multi-protocol label switching (MPLS) encapsulation; forwarding, over the packet network, the packet from the network device to a digital communication channel (DCC) associated with the second L2 media type network; replacing, at the DCC, the MPLS encapsulation with a link access protocol (LAP) encapsulation; and transmitting the packet encapsulated with the LAP encapsulation to the second L2 media type network.