Frame relay switched data service
First Claim
1. A method comprising:
- receiving frame relay data packets into a packet network, the frame relay data packets having user data in a user data field, wherein the user data comprises service category data;
discriminating between a plurality of service categories based on the user data, wherein the plurality of service categories comprises two or more of;
communication via public internet, communication via a local intranet, communication within a closed user group, communication with an extranet, live audio transmission, live video transmission, multicasting transmission or telephony over internet protocol transmission; and
routing over a virtual private network responsive to one of the plurality of service categories.
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Abstract
A new type of data transport service which uses a frame relay layer 2 data link connection identifier (DLCI) to select among various service types, feature sets, and/or closed user groups (CUGs). A layer 3 address may be extracted from a layer 2 frame, and the layer 3 address information may be used to route a data packet over a packet-switched network according to the service classes, feature sets, and/or CUGs selected. At the destination, the layer 3 data packet may again be enclosed in a layer 2 frame with a DLCI indicating the service classes, features sets, and/or CUGs. Because the use of conventional permanent virtual circuits (PVCs) is not required in aspects of the invention, new methods of measuring and managing network traffic are presented.
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Citations
16 Claims
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1. A method comprising:
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receiving frame relay data packets into a packet network, the frame relay data packets having user data in a user data field, wherein the user data comprises service category data; discriminating between a plurality of service categories based on the user data, wherein the plurality of service categories comprises two or more of;
communication via public internet, communication via a local intranet, communication within a closed user group, communication with an extranet, live audio transmission, live video transmission, multicasting transmission or telephony over internet protocol transmission; androuting over a virtual private network responsive to one of the plurality of service categories. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method comprising:
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receiving a plurality of frame relay packets over a permanent virtual circuit at a first node in an asynchronous transfer mode network; generating an asynchronous transfer mode address based on a data field other than a data link connection identifier within the plurality of frame relay packets; and routing the plurality of frame relay packets through the asynchronous transfer mode network based on the asynchronous transfer mode address. - View Dependent Claims (10)
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11. A system comprising:
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means for receiving frame relay data packets into a packet network, the frame relay data packets having user data in a user data field, wherein the user data comprises service category data; means for discriminating between a plurality of service categories based on the user data, wherein the plurality of service categories comprises two or more of;
communication via public internet, communication via a local intranet, communication within a closed user group, communication with an extranet, live audio transmission, live video transmission, multicasting transmission or telephony over internet protocol transmission; andmeans for routing over a virtual private network responsive to one of the plurality of service categories. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification