Virtual private network

Details Virtual private network Virtual private network

1996-04-12

1998-06-16

Ton, Dang

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370397, H04L 1256

Patent

active

057682712

ABSTRACT:
In a packet switching (packet-based) network, such as a frame relay (FR) network, which includes network resources made up of networked elements and customer premises equipment interconnected by one or more physical paths, a Virtual Private Network (VPN) is built above the underlying packet-based network and includes selected portions of the packet-based network resources. The VPN is a collection of logical nodes and virtual paths (VPs) and includes one or more virtual circuits (VCs), each VC being a logical connection between VC terminators including network elements and customer premises equipment. Segments of the VCs are carried by VPs, each VP being a logical connection established between two VP terminators which are located in either network elements or customer premises equipment. One or more VPs are multiplexed on a physical path (PP). Each VP is allocated a positive guaranteed bandwidth (VP-CIR), and each VC on a VP is also allocated a bandwidth (VC-CIR) greater than or equal to zero. Packets of information to be transmitted over a VC are provided with a unique address field to thereby identify the VCs and VPs associated with the VPN over which the packet of information will travel. Congestion control of the network is provided such that congestion control and management are carried out on a per VPN basis, and congestion outside of a VPN's logical domain does not affect the performance of the VPN.

REFERENCES:
patent: 4348554 (1982-09-01), Asmuth
patent: 4823338 (1989-04-01), Chan et al.
patent: 5274643 (1993-12-01), Fisk
patent: 5337307 (1994-08-01), Sato et al.
patent: 5357564 (1994-10-01), Gupta et al.
patent: 5394402 (1995-02-01), Ross
patent: 5432783 (1995-07-01), Ahmed et al.
patent: 5432785 (1995-07-01), Ahmed et al.
patent: 5436909 (1995-07-01), Dev et al.
patent: 5440547 (1995-08-01), Easki et al.
patent: 5442637 (1995-08-01), Nguyen
patent: 5446734 (1995-08-01), Goldstein
patent: 5452293 (1995-09-01), Wilkinson et al.
patent: 5477536 (1995-12-01), Picard

Affiliated with

Also associated with

Rating

Virtual private network does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Virtual private network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Virtual private network will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1734709