WO2000030295A3 - Providing admission control with a distributed bandwidth broker - Google Patents

Providing admission control with a distributed bandwidth broker Download PDF

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Publication number
WO2000030295A3
WO2000030295A3 PCT/US1999/027380 US9927380W WO0030295A3 WO 2000030295 A3 WO2000030295 A3 WO 2000030295A3 US 9927380 W US9927380 W US 9927380W WO 0030295 A3 WO0030295 A3 WO 0030295A3
Authority
WO
WIPO (PCT)
Prior art keywords
multicast
premium service
service bandwidth
request
link
Prior art date
Application number
PCT/US1999/027380
Other languages
French (fr)
Other versions
WO2000030295A2 (en
Inventor
Shenze Chen
Norival R Figueira
Original Assignee
Nortel Networks Corp
Shenze Chen
Norival R Figueira
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 Nortel Networks Corp, Shenze Chen, Norival R Figueira filed Critical Nortel Networks Corp
Priority to EP99957575A priority Critical patent/EP1138138A2/en
Priority to AU15255/00A priority patent/AU1525500A/en
Priority to CA002351395A priority patent/CA2351395A1/en
Publication of WO2000030295A2 publication Critical patent/WO2000030295A2/en
Publication of WO2000030295A3 publication Critical patent/WO2000030295A3/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
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
    • H04L12/1827—Network arrangements for conference optimisation or adaptation
    • 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
    • H04L47/43—Assembling or disassembling of packets, e.g. segmentation and reassembly [SAR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/78—Architectures of resource allocation
    • H04L47/783—Distributed allocation of resources, e.g. bandwidth brokers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/80—Actions related to the user profile or the type of traffic
    • H04L47/806—Broadcast or multicast traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/82—Miscellaneous aspects
    • H04L47/822—Collecting or measuring resource availability data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1881—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with schedule organisation, e.g. priority, sequence management

Abstract

A method and apparatus are provided for making admission decisions in a packet switched network, such as a Differentiated Services (DiffServ) Packet Network. According to one aspect of the present invention, admission control decisions are based upon local information. An average premiums service bandwidth utilized on an output link of a network device during a predetermined window of time is calculated. A determination regarding whether to accept or reject a request for a premium service flow involving the output link is made based upon the request, a total premium service bandwidth available on the output link, the average premium service bandwidth, and bandwidth request information associated with one or more flows that have been admitted within a predetermined holding time interval. According to another aspect of the present invention, multicast flows are supported. A measure of utilized premium service bandwidth is calculated for each of the output links of a multicast-capable network device. A request for premium service bandwidth for a multicast session is forwarded onto those of the output links specified by a multicast routing protocol which have sufficient premium service bandwidth available to accommodate the request based upon the total premium service bandwidth available on the output link, the measure of utilized premium service bandwidth on the output link, and the request. For each of the output links associated with the multicast session, a link state is maintained. The link state indicates the current state of a state machine that determines the behavior of the multicast-capable network device for the corresponding output link of the multicast session. Multicast packets that are subsequently received are forwarded according to the link states associated with the output links.
PCT/US1999/027380 1998-11-18 1999-11-17 Providing admission control with a distributed bandwidth broker WO2000030295A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP99957575A EP1138138A2 (en) 1998-11-18 1999-11-17 Providing admission control with a distributed bandwidth broker
AU15255/00A AU1525500A (en) 1998-11-18 1999-11-17 Providing admission control and network quality of service with a distributed bandwidth broker
CA002351395A CA2351395A1 (en) 1998-11-18 1999-11-17 Providing admission control and network quality of service with a distributed bandwidth broker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/195,348 1998-11-18
US09/195,348 US6487170B1 (en) 1998-11-18 1998-11-18 Providing admission control and network quality of service with a distributed bandwidth broker

Publications (2)

Publication Number Publication Date
WO2000030295A2 WO2000030295A2 (en) 2000-05-25
WO2000030295A3 true WO2000030295A3 (en) 2000-11-30

Family

ID=22721081

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/027380 WO2000030295A2 (en) 1998-11-18 1999-11-17 Providing admission control with a distributed bandwidth broker

Country Status (5)

Country Link
US (1) US6487170B1 (en)
EP (1) EP1138138A2 (en)
AU (1) AU1525500A (en)
CA (1) CA2351395A1 (en)
WO (1) WO2000030295A2 (en)

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Publication number Publication date
WO2000030295A2 (en) 2000-05-25
AU1525500A (en) 2000-06-05
CA2351395A1 (en) 2000-05-25
EP1138138A2 (en) 2001-10-04
US6487170B1 (en) 2002-11-26

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