U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method and system of providing multi-user access to a packet switched network

Patent 6891825 Issued on May 10, 2005. Estimated Expiration Date: Icon_subject December 22, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

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Inventors

Assignee

Application

No. 09469506 filed on 12/22/1999

US Classes:

370/352, Combined circuit switching and packet switching370/395.2, Connection set-up/disconnect (e.g., Connection Admission Control)370/535, Multiplexing combined with demultiplexing370/420, For connecting plural subscribers to a network (i.e., network termination)379/93.04, Two or more calls379/93.14, Having switching station379/93.17Having station display

Examiners

Primary: Nguyen, Hoang

International Classes

H04L012/66
H04L012/28
H04J003/04
H04M011/00

Abstract

An approach for providing multi-user access to a packet switched network via a shared Ethernet-based local area network (LAN) is disclosed. Multiple end user stations are connected to the LAN, in which each of end user stations executes a communication software. The communication software is based upon a communication protocol (e.g., Point-to-Point Protocol (PPP)) that establishes a point-to-point communication session. The end user stations generate packets based upon the communication protocol. In addition, each of the end user stations selectively encapsulates the communication protocol packets using the Ethernet-based LAN protocol. Further, attached to the LAN is a customer premise equipment (CPE), which transmits the encapsulated packets to a line terminating equipment, which according to one embodiment is a digital subscriber line (DSL) access multiplexer that is located in a central office. The line terminating equipment transports the multiple PPP sessions to a multiplexer/demultiplexer, which is located within a regional carrier's network. In one embodiment, the multiplexer/demultiplexer is an Asynchronous Transfer Mode (ATM) switch, which simultaneously transports the multiple PPP sessions over a single permanent virtual circuit (PVC); VPI/VCIs (Virtual Path Identifier/Virtual Connection Identifier) are mapped to the multiple PPP sessions. The multiple PPP sessions are terminated at a remote access server, which recovers and forwards the packets to a backbone router. Thereafter, the backbone router forwards the packets to the packet switched network.

Other References

  • Mamakos,L. et al., “PPP Over the Ethernet ‘PPPOE,’” Aug., 1998 (website) http:/www-rn.informatik.uni-bremen.de/home/ftp/doc/internet-drafts-carrel-info . . . .
  • Mamakos, L. et al., “IETF Internet Informational RFC 2516, A Method for Transmitting PPP Over Ethernet,” Feb., 1999 (website) http://info.internet.isi.edu/in-notes/rfc/files . . . .
  • “Redback Networks White Paper PPP over Ethernet: A Comparison of Alternatives for . . . ,” Sep., 1998 (website) http://www.redbacknetworks.com/.
  • “Redback Networks White Paper‘PPP over Ethernet: A Differentiating Advantage for . . . , ’” Sep., 1998 (website) http://www.redbacknetworks.com.
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