WO2006023141A3 - Hierarchal scheduler with multiple scheduling lanes - Google Patents

Hierarchal scheduler with multiple scheduling lanes Download PDF

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Publication number
WO2006023141A3
WO2006023141A3 PCT/US2005/024066 US2005024066W WO2006023141A3 WO 2006023141 A3 WO2006023141 A3 WO 2006023141A3 US 2005024066 W US2005024066 W US 2005024066W WO 2006023141 A3 WO2006023141 A3 WO 2006023141A3
Authority
WO
WIPO (PCT)
Prior art keywords
scheduler
items
schedulers
packets
scheduling
Prior art date
Application number
PCT/US2005/024066
Other languages
French (fr)
Other versions
WO2006023141A2 (en
Inventor
Earl T Cohen
Robert Olsen
Eugene M Feinberg
Gregory L Ries
Original Assignee
Cisco Tech Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cisco Tech Inc filed Critical Cisco Tech Inc
Priority to CN2005800226632A priority Critical patent/CN1981484B/en
Priority to CA2575869A priority patent/CA2575869C/en
Priority to EP05764490A priority patent/EP1774714B1/en
Priority to CA2575814A priority patent/CA2575814C/en
Priority to CN2005800242194A priority patent/CN1989738B/en
Priority to PCT/US2005/027922 priority patent/WO2006017753A2/en
Priority to EP05778432A priority patent/EP1774721B1/en
Publication of WO2006023141A2 publication Critical patent/WO2006023141A2/en
Publication of WO2006023141A3 publication Critical patent/WO2006023141A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/50—Queue scheduling
    • H04L47/62—Queue scheduling characterised by scheduling criteria
    • H04L47/6215—Individual queue per QOS, rate or priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/26—Flow control; Congestion control using explicit feedback to the source, e.g. choke packets
    • H04L47/263—Rate modification at the source after receiving feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/50—Queue scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/50—Queue scheduling
    • H04L47/60—Queue scheduling implementing hierarchical scheduling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

Disclosed is a hierarchy of individual schedulers with multiple scheduling lanes for scheduling items, such as, but not limited to packets or indications thereof, such that different classes of priority items can be propagated through the hierarchy of schedulers accordingly. A pipeline scheduler typically includes a root scheduler and one or more layers of schedulers with each of these layers including at least one scheduler. Each scheduler is configured to maintain items of different scheduling categories received from each of the particular scheduler's immediate children schedulers within the pipeline scheduler if any and from each immediate external source coupled to the particular scheduler if any, and to schedule the sending of the items of the different scheduling categories currently maintained to its parent schedule or external scheduler client. The items may correspond to packets, indications of packets, or any other entity.
PCT/US2005/024066 2004-08-05 2005-07-07 Hierarchal scheduler with multiple scheduling lanes WO2006023141A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN2005800226632A CN1981484B (en) 2004-08-05 2005-07-07 Hierarchal scheduler with multiple scheduling lanes and scheduling method
CA2575869A CA2575869C (en) 2004-08-05 2005-07-07 Hierarchal scheduler with multiple scheduling lanes
EP05764490A EP1774714B1 (en) 2004-08-05 2005-07-07 Hierarchal scheduler with multiple scheduling lanes
CA2575814A CA2575814C (en) 2004-08-05 2005-08-05 Propagation of minimum guaranteed scheduling rates
CN2005800242194A CN1989738B (en) 2004-08-05 2005-08-05 Propagation of minimum guaranteed scheduling rates
PCT/US2005/027922 WO2006017753A2 (en) 2004-08-05 2005-08-05 Propagation of minimum guaranteed scheduling rates
EP05778432A EP1774721B1 (en) 2004-08-05 2005-08-05 Propagation of minimum guaranteed scheduling rates

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/913,055 2004-08-05
US10/913,055 US7876763B2 (en) 2004-08-05 2004-08-05 Pipeline scheduler including a hierarchy of schedulers and multiple scheduling lanes

Publications (2)

Publication Number Publication Date
WO2006023141A2 WO2006023141A2 (en) 2006-03-02
WO2006023141A3 true WO2006023141A3 (en) 2006-11-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/024066 WO2006023141A2 (en) 2004-08-05 2005-07-07 Hierarchal scheduler with multiple scheduling lanes

Country Status (5)

Country Link
US (2) US7876763B2 (en)
EP (1) EP1774714B1 (en)
CN (2) CN1981484B (en)
CA (1) CA2575869C (en)
WO (1) WO2006023141A2 (en)

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Also Published As

Publication number Publication date
CA2575869C (en) 2011-08-30
EP1774714A4 (en) 2010-06-02
CA2575869A1 (en) 2006-03-02
CN1981484A (en) 2007-06-13
US8077618B2 (en) 2011-12-13
CN1981484B (en) 2010-12-01
US20060029079A1 (en) 2006-02-09
US20060029080A1 (en) 2006-02-09
WO2006023141A2 (en) 2006-03-02
EP1774714B1 (en) 2012-09-05
EP1774714A2 (en) 2007-04-18
US7876763B2 (en) 2011-01-25
CN1989738B (en) 2012-04-18
CN1989738A (en) 2007-06-27

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