Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2004-06-03
2009-10-20
Orgad, Edan (Department: 2419)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S395430
Reexamination Certificate
active
07606235
ABSTRACT:
Techniques are described for providing QoS guarantees when coupling layer two (L2) networks via an intermediate Multi-protocol Label Switching (MPLS) network. A network device, such as a router, receives a request to transport data from an L2 connection. The request specifies one of more characteristics of the L2 connection, such as bandwidth, color, end-to-end delay, jitter, a security requirement, or a classification of traffic for the L2 connection. The network device selects a label switched path (LSP) through the MPLS network based on the characteristics of the L2 connection, and forwards the data from the L2 connection via the selected LSP. In this manner, an LSP and, in particular, one or more forwarding next hops for the LSP, is selected that provides a “virtual” L2 connection, or pseudo-wire, that more closely emulates a direct L2 connection between the L2 networks.
REFERENCES:
patent: 6363319 (2002-03-01), Hsu
patent: 6522667 (2003-02-01), Oda et al.
patent: 6538416 (2003-03-01), Hahne et al.
patent: 6618397 (2003-09-01), Huang
patent: 6680943 (2004-01-01), Gibson et al.
patent: 6728261 (2004-04-01), Sasson et al.
patent: 6731649 (2004-05-01), Silverman
patent: 6751218 (2004-06-01), Hagirahim et al.
patent: 6757298 (2004-06-01), Burns et al.
patent: 6765921 (2004-07-01), Stacey et al.
patent: 6778494 (2004-08-01), Mauger
patent: 6778531 (2004-08-01), Kodialam et al.
patent: 6798785 (2004-09-01), Sasson et al.
patent: 6842454 (2005-01-01), Metcalf, III
patent: 6882643 (2005-04-01), Mauger et al.
patent: 6885677 (2005-04-01), Klevans
patent: 6931025 (2005-08-01), Masuda
patent: 6937598 (2005-08-01), Hagirahim et al.
patent: 6956821 (2005-10-01), Szviatovszki et al.
patent: 6963561 (2005-11-01), Lahat
patent: 6993021 (2006-01-01), Chuah et al.
patent: 7002993 (2006-02-01), Mohaban et al.
patent: 7013318 (2006-03-01), Rosengard et al.
patent: 7027450 (2006-04-01), Collette et al.
patent: 7031312 (2006-04-01), Jayakumar et al.
patent: 7039706 (2006-05-01), Parker et al.
patent: 7046669 (2006-05-01), Mauger et al.
patent: 7065084 (2006-06-01), Seo
patent: 7082102 (2006-07-01), Wright
patent: 7164679 (2007-01-01), Kotha et al.
patent: 7184434 (2007-02-01), Ganti et al.
patent: 7197033 (2007-03-01), Reeves et al.
patent: 7317731 (2008-01-01), Seddigh et al.
patent: 7333509 (2008-02-01), Gadagottu
patent: 7336617 (2008-02-01), Liu
patent: 7336648 (2008-02-01), Sasagawa
patent: 7369571 (2008-05-01), Choudhury et al.
patent: 7418493 (2008-08-01), Charny et al.
patent: 7477657 (2009-01-01), Murphy et al.
patent: 7489695 (2009-02-01), Ayyangar
patent: 7539210 (2009-05-01), Iovanna et al.
patent: 2003/0028670 (2003-02-01), Lee et al.
patent: 2003/0028818 (2003-02-01), Fujita
patent: 2003/0103510 (2003-06-01), Svanberg et al.
patent: 2003/0108051 (2003-06-01), Bryden et al.
patent: 2003/0117950 (2003-06-01), Huang
patent: 2003/0118047 (2003-06-01), Collette et al.
patent: 2003/0137971 (2003-07-01), Gibson et al.
patent: 2003/0185217 (2003-10-01), Ganti et al.
patent: 2003/0204617 (2003-10-01), Buchsbaum et al.
patent: 2003/0210705 (2003-11-01), Seddigh et al.
patent: 2004/0004955 (2004-01-01), Lewis
patent: 2004/0008718 (2004-01-01), English et al.
patent: 2004/0010617 (2004-01-01), Akahane et al.
patent: 2004/0042398 (2004-03-01), Peleg et al.
patent: 2005/0010685 (2005-01-01), Ramnath et al.
patent: 2005/0013242 (2005-01-01), Chen et al.
patent: 2005/0125490 (2005-06-01), Ramia
patent: 2005/0169270 (2005-08-01), Mutou et al.
patent: 2005/0169313 (2005-08-01), Okamura et al.
patent: 2005/0243833 (2005-11-01), Choudhury et al.
patent: 2005/0259586 (2005-11-01), Hafid et al.
patent: 2005/0265258 (2005-12-01), Kodialam et al.
patent: 2006/0013232 (2006-01-01), Xu et al.
patent: 2006/0018326 (2006-01-01), Yucel
patent: 2006/0034328 (2006-02-01), Aldermeshian et al.
patent: 2006/0039364 (2006-02-01), Wright
patent: 2006/0039391 (2006-02-01), Vasseur et al.
patent: 2006/0126536 (2006-06-01), Patel et al.
patent: 2006/0159009 (2006-07-01), Kim et al.
patent: 2006/0182119 (2006-08-01), Li et al.
patent: 2006/0209785 (2006-09-01), Iovanna et al.
patent: 2006/0233137 (2006-10-01), Dantu et al.
patent: 2007/0133406 (2007-06-01), Vasseur
patent: 2007/0177505 (2007-08-01), Charrua et al.
patent: 2007/0268821 (2007-11-01), Levit et al.
patent: 2007/0268909 (2007-11-01), Chen et al.
patent: 2008/0019266 (2008-01-01), Liu et al.
patent: 2008/0049776 (2008-02-01), Wiley et al.
patent: 2008/0101239 (2008-05-01), Goode
patent: 2008/0144632 (2008-06-01), Rabie et al.
patent: 2008/0168510 (2008-07-01), Small et al.
patent: 2008/0259936 (2008-10-01), Hussain et al.
patent: 2009/0003200 (2009-01-01), So
A Solution for Managing Quality of Service in Internet Protocol Networks; M Vapa—IEEE Communications Magazine, 1998.
Advance reservations of bandwidth in computer networks; Lo Burchard—2004—Citeseer.
An MPLS-based Quality of Service Architecture for Heterogeneous Networks; S Raghavan—2001—Citeseer.
QoS and Traffic Engineering: MPLS, DiffServ and Constraint Based Routing; ASG Mittel—2000.
Quality of service and traffic engineering using multiprotocol label switching; R Jain—ETRI, Korea, Aug. 1999.
QoS-guaranteed DiffServ-aware-MPLS Traffic Engineering with Controlled Bandwidth Borrowing; Y Kim, C Kim—Lecture notes in computer science, 2004.
IP/MPLS based VPNs, Layer-3 vs Layer-2; Ahmed A.; Foundery Networks, 2002.
RFC 3035; MPLS using LDP and ATM VC Switching; 2001.
D. Awduche et al., “RFC 3209—RSVP-TE: Extensions to RSVP for LSP Tunnels,” Network Working Group, Dec. 2001, 47 pgs.
RSVP-TE: Resource Reservation Protocol—Traffic Extension, Javvin Company, 2 pgs, printed Feb. 14, 2005.
U.S. Appl. No. 10/928,572, entitled “Traffic Engineering Using Extended Bandwidth Accounting Information,” filed Aug. 27, 2004.
U.S. Appl. No. 10/963,412, entitled “Automatic LSP Stitching With Protocol Signaling,” filed Oct. 12, 2004.
U.S. Appl. No. 10/973,677, entitled RSVP-Passive Interfaces For Traffic Engineering Peering Links In MPLS Networks, filed Oct. 26, 2004.
Ayyangar Arthi R.
Kodeboyina Chaitanya
Ahmed Salman
Juniper Networks, Inc.
Orgad Edan
Shumaker & Sieffert P.A
LandOfFree
Constraint-based label switched path selection within a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Constraint-based label switched path selection within a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraint-based label switched path selection within a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4067577