Frame relay switched data service

Details Frame relay switched data service Frame relay switched data service

2000-04-17

2008-12-09

Pham, Chi H. (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S395500, C370S397000, C370S399000, C370S463000

Reexamination Certificate

active

07463627

ABSTRACT:
A new type of data transport service which uses a frame relay layer2data link connection identifier (DLCI) to select among various service types, feature sets, and/or closed user groups (CUGs). A layer3address may be extracted from a layer2frame, and the layer3address 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 layer3data packet may again be enclosed in a layer2frame 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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