Applying multicast protocols and VPN tunneling techniques to achieve high quality of service for real time media transport across IP networks
DC
First Claim
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1. A method for data transport that uses multicast protocols, the method comprising:
- initiating multicast routing instance of ingress or egress nodes of at least one virtual private networks, wherein each payload data is forwarded along a network where at least one client indicates interest in at least one multicast group address;
creating at least one virtual private network with routing protocols on ends of each of a plurality of virtual private network tunnels;
associating the multicast group address with the data payload and routing the data payload to multiple clients through the virtual private network tunnels, wherein the data payload is routed such that each tunnel node in a data payload route is multicast enabled;
communicating a plurality of multicast addressed packets that are encapsulated within a private tunnel such that each tunnel node is specified as a multicast enabled router with specific instructions to construct and to maintain each virtual tunnel for payload transport;
enabling each multicast router to instantiate a plurality of virtual private network tunnels between a plurality of creation points and a plurality of termination points between a public network and a private network;
transporting the real-time data payload between the public network and the private network; and
performing tunnel creation and tear-down that is initiated by a software application running on a client device.
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Abstract
As prior art systems fail to produce end-to-end transport and routing mechanisms capable of secure, accurate, and timely delivery of real-time media, the present invention prescribes the method and process to facilitate server-less, IP based sessions across all of public and private network infrastructure without regard for network hardware or carrier makeup. The method and process claimed herein defines the application of well known standards in a unique fashion so as to facilitate transportation of TCP and UDP packets associated with a real-time multicast session in a secure manner while achieving unencumbered access through firewalls and across multiple carrier, public networks through IPSec based virtual networking.
215 Citations
10 Claims
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1. A method for data transport that uses multicast protocols, the method comprising:
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initiating multicast routing instance of ingress or egress nodes of at least one virtual private networks, wherein each payload data is forwarded along a network where at least one client indicates interest in at least one multicast group address; creating at least one virtual private network with routing protocols on ends of each of a plurality of virtual private network tunnels; associating the multicast group address with the data payload and routing the data payload to multiple clients through the virtual private network tunnels, wherein the data payload is routed such that each tunnel node in a data payload route is multicast enabled; communicating a plurality of multicast addressed packets that are encapsulated within a private tunnel such that each tunnel node is specified as a multicast enabled router with specific instructions to construct and to maintain each virtual tunnel for payload transport; enabling each multicast router to instantiate a plurality of virtual private network tunnels between a plurality of creation points and a plurality of termination points between a public network and a private network; transporting the real-time data payload between the public network and the private network; and performing tunnel creation and tear-down that is initiated by a software application running on a client device. - View Dependent Claims (2, 3, 4, 5)
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6. A real time multipoint communications system that uses multicast protocols, the system comprising:
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a multicast routing instance of ingress or egress nodes of at least one virtual private networks, wherein each payload data is forwarded along a network where at least one client indicates interest in at least one multicast group address; at least one virtual private network comprising a plurality of private network tunnels, a multitask protocol applied to each port of each tunnel; a multicast group address associated with the data payload, the data payload routed to multiple clients via the virtual private network tunnels; a data payload route through the virtual private network tunnels comprising a plurality of tunnel nodes, each tunnel node of the route multicast enabled; a plurality of multicast addressed packets that are encapsulated within a private tunnel such that each tunnel node is specified as a multicast enabled router with specific instructions to construct and to maintain each virtual tunnel for payload transport; each multicast router configured to instantiate a plurality of virtual private network tunnels between a plurality of creation points and a plurality of termination points between a public network and a private network; and a software application running on a client device configured to initiate tunnel creation and tear-down. - View Dependent Claims (7, 8, 9, 10)
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Specification
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Litigation Data
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Current AssigneeMeetrix IP, LLC (Anixa Biosciences, Inc. (f/k/a ITUS Corporation))
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Original AssigneeMeetrix Corporation
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InventorsLehmann, Jr., L. Curtis, Dye, Thomas A.
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Primary Examiner(s)Banks Harold, Marsha D
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Assistant Examiner(s)CAMPBELL, MATTHEW T
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Application NumberUS12/237,286Publication NumberTime in Patent Office1,742 DaysField of Search370/312, 370/390, 370/432US Class Current370/390CPC Class CodesH04L 12/1827 Network arrangements for co...H04L 12/4641 Virtual LANs, VLANs, e.g. v...H04L 65/1101 Session protocolsH04L 65/611 for multicast or broadcast ...
