3-layer VPN and constructing method thereof

Details 3-layer VPN and constructing method thereof 3-layer VPN and constructing method thereof

2003-01-03

2008-08-12

Orgad, Edan (Department: 2619)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C709S238000

Reexamination Certificate

active

07411955

ABSTRACT:
A 3-layer Virtual Private Network (VPN) is disclosed and includes P devices and PE devices in the backbone network, a plurality of sites and CE devices in subscribers' VPNs, and Hierarchy of PE (HoPE) devices, the HoPE devices serve as edge routers in the backbone network and are connected to P devices in the backbone network as well as sites and CE devices in subscribers' VPNs; the HoPE devices include understratum PEs (UPEs), zero or more middle-level PEs (MPEs) and superior PEs (SPEs) connected with each other, and all of the PEs (UPEs, MPEs, and SPEs) take different roles and deliver the function of a central PE. For the SPEs, the routing and forwarding performance should be relatively higher; while for UPEs, the performance may be lower. The architecture can enhance the expandability in hierarchical BGP/MPLS VPNs.

REFERENCES:
patent: 7075933 (2006-07-01), Aysan
patent: 7116665 (2006-10-01), Balay et al.
patent: 7152115 (2006-12-01), Ould Brahim et al.
patent: 7340519 (2008-03-01), Golan et al.
patent: 2003/0142674 (2003-07-01), Casey
patent: 2003/0217132 (2003-11-01), Batten et al.
patent: 2003/0223406 (2003-12-01), Balay et al.
patent: 2004/0076165 (2004-04-01), Jean-Francois et al.
patent: 2004/0223497 (2004-11-01), Sanderson et al.
patent: 2005/0190757 (2005-09-01), Sajassi
patent: 2006/0215578 (2006-09-01), Andrapalliyal et al.
patent: 2006/0215579 (2006-09-01), Nadeau et al.
patent: 2006/0274723 (2006-12-01), Siyavudeen et al.
patent: 2007/0086448 (2007-04-01), Hu
patent: 2007/0140251 (2007-06-01), Dong
patent: 2007/0226325 (2007-09-01), Bawa et al.
patent: 2008/0089334 (2008-04-01), Soja-Molloy et al.
patent: 1 187 405 (2002-03-01), None
patent: 1392033 (2004-02-01), None
patent: 1713197 (2006-10-01), None
patent: 1768335 (2007-03-01), None
Overview of MPLS Virtual Private Networks.
Quantitative analysis of multiprotocol label switching (MPLS) in VPNs; Khan, M.A. Sir Syed University of Engineering and Technology; This paper appears in: Students Conference, ISCON '02. Proceedings. IEEE Publication Date: Aug. 16-17, 2002 vol. 1, On pp. 56-65 vol. 1.
Overview on MPLS Virtual Private Networks; Journal Photonic Network Communications Publisher Springer Netherlands □□ISSN 1387-974X (Print) 1572-8188 (Online) Issue vol. 4, No. 2 / May 2002 □□.
R. Callon et al., “A Framework for Provider Provisioned Virtual Private Networks”, printout from Internet <URL:www.ietf.org>, retrieved on May 27, 2003, draft dated Jul. 19, 2001, 72 Pages.
Eric C. Rosen, “BGP/MPLS VPNs”, printout from Internet <URL:www.ietf.org>, retrieved on May 27, 2003, draft dated Jul. 2002, 41 Pages.
Bin Li et al., “Hiearchy of Provider Edge Device in BGP/MPLS VPN”, printout from Internet <URL:www.ietf.org>, retrieved on May 27, 2003, draft dated Nov. 6, 2002, 12 pages.
M. Lasserre et al., “Virtual Private LAN Services over MPLS”, Internet Draft, Jun. 2002, printout from Internet(URL:www.ietf.org).

Affiliated with

Also associated with

Rating

3-layer VPN and constructing method thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with 3-layer VPN and constructing method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 3-layer VPN and constructing method thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4008363