FRAME RELAY SWITCHED DATA SERVICE
First Claim
1. A method comprising:
- receiving frame relay data packets into a packet network, said frame relay data packets having user data in a user data field, wherein said user data comprises service category data;
discriminating between a plurality of service categories based on the user data; and
routing over a virtual private network responsive to at least one of the pluralities of service categories.
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Accused Products
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.
110 Citations
20 Claims
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1. A method comprising:
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receiving frame relay data packets into a packet network, said frame relay data packets having user data in a user data field, wherein said user data comprises service category data; discriminating between a plurality of service categories based on the user data; and routing over a virtual private network responsive to at least one of the pluralities 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 method comprising:
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receiving a packet; comparing an address of the packet with a layer 3 internet protocol address contained within the packet; and determining whether the address is consistent with the layer 3 internet protocol address. - View Dependent Claims (12, 13, 14)
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15. A system comprising:
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means for receiving frame relay data packets into a packet network, said frame relay data packets having user data in a user data field, wherein said user data comprises service category data; means for discriminating between a plurality of service categories based on the user data; and means for routing over a virtual private network responsive to at least one of the pluralities of service categories. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification