Method for traffic engineering and ingress router adapted to...

Details Method for traffic engineering and ingress router adapted to... Method for traffic engineering and ingress router adapted to...

2003-10-24

2008-11-18

Ngo, Ricky (Department: 2616)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S412000

Reexamination Certificate

active

07453819

ABSTRACT:
A method for engineering traffic between an ingress router and an egress router of a packet network, whereby the traffic is scheduled within the ingress router in queues pertaining to different service classes, and whereby part of the traffic follows a dedicated tunnel between the ingress and egress routers, includes the step of provisioning of a tunnel queue dedicated to the part of the traffic intended to flow via the dedicated tunnel, for separately and temporarily storing the part of the traffic towards the dedicated tunnel, and a further step of shaping the part of the traffic towards the dedicated tunnel before entering the traffic tunnel. Further embodiments include the provisioning of a set of queues, pertaining to the different service classes, to one or more of these dedicated traffic tunnels, as well as the provisioning of associated shapers.

REFERENCES:
patent: 6522627 (2003-02-01), Mauger
patent: 6665273 (2003-12-01), Goguen et al.
patent: 7023856 (2006-04-01), Washabaugh et al.
patent: 2001/0033581 (2001-10-01), Kawarai et al.
patent: 2004/0081197 (2004-04-01), Liu
Heinanen, “Integrating MPLS and DiffServ to Assure QoS”, Faster Workshop '01, Jan. 11, 2001, pp. 1-17.
Jaffe et al., “Smart Networks Project Overview”, Internet Report, Sep. 2000, pp. 1-25.
Le Faucher e t al., “Multi-Protocol Label Switching (MPLS) Support of Differentiated Services” (RFC 3270), Request for Comments, May 2002, pp. 1-64.
Andrikopoulous et al., “Supporting differentiated services in MPLS networks” International workshop on Quality of Service, May 31, 1999, pp. 207-215.

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