WO2001065782A1 - Procede d'etablissement de trajets de transmission de donnees de bout en bout, au moyen du protocole de signalisation de reservation de ressources point par point, base protocole icmp - Google Patents

Procede d'etablissement de trajets de transmission de donnees de bout en bout, au moyen du protocole de signalisation de reservation de ressources point par point, base protocole icmp Download PDF

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Publication number
WO2001065782A1
WO2001065782A1 PCT/SE2000/000387 SE0000387W WO0165782A1 WO 2001065782 A1 WO2001065782 A1 WO 2001065782A1 SE 0000387 W SE0000387 W SE 0000387W WO 0165782 A1 WO0165782 A1 WO 0165782A1
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WO
WIPO (PCT)
Prior art keywords
network
data transmission
hop
message
protocol
Prior art date
Application number
PCT/SE2000/000387
Other languages
English (en)
Inventor
David Ahlard
Joakim Bergkvist
Istvan CSELÉNY
Original Assignee
Telia Ab
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 Telia Ab filed Critical Telia Ab
Priority to PCT/SE2000/000387 priority Critical patent/WO2001065782A1/fr
Publication of WO2001065782A1 publication Critical patent/WO2001065782A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/80—Actions related to the user profile or the type of traffic
    • H04L47/805—QOS or priority aware
    • 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
    • H04L47/17—Interaction among intermediate nodes, e.g. hop by hop
    • 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
    • H04L47/18—End to end
    • 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
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H04L47/2408—Traffic characterised by specific attributes, e.g. priority or QoS for supporting different services, e.g. a differentiated services [DiffServ] type of service
    • 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
    • H04L47/72—Admission control; Resource allocation using reservation actions during connection setup
    • H04L47/724—Admission control; Resource allocation using reservation actions during connection setup at intermediate nodes, e.g. resource reservation protocol [RSVP]
    • 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
    • H04L47/785—Distributed allocation of resources, e.g. bandwidth brokers among multiple network domains, e.g. multilateral agreements
    • H04L47/786—Mapping reservation between domains
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0025—Provisions for signalling

Definitions

  • the invention relates to a data transmission network in which a hop-by-hop resource reservation signalling protocol is used to establish data paths, and in which an Internet Control and Management Protocol (ICMP) is used for message transportation, a method for establishing end-to-end data transmission paths, ahd IP routers and end user equipments adapted to implement the hop-by-hop resource reservation signalling protocol.
  • ICMP Internet Control and Management Protocol
  • Differentiated Services proposed by the Internet Engineering Task Force (IETF) provide a means of specifying specific per hop behaviours for different types of traffic, as indicated by the ToS (Type of Service) field in an Internet Protocol (IP) header.
  • ToS Type of Service
  • IP Internet Protocol
  • One such 'class' is expedited forwarding which implies that the amount of incoming resources must not exceed the available resources.
  • CAC Connection Admission Control
  • CAC CAC-specific Call Control
  • the down grading vector represents the discrete bandwidth downgrading steps for an application.
  • a reservation tear message is sent backwards to the up-stream nodes to initiate release of excess reservation resulting from the downgrading.
  • the tear message is also propagated along the backward path. The fact that the network downgrades to those quality levels that correspond to rational settings for the application, does not mean that the user will accept the established connection. If downgrading happens inside the network, the user will decide whether, or not, the quality level of the established service is acceptable.
  • a hop-by-hop resource reservation signalling protocol provides a robust and simple solution to the need for some kind of signalling. There are, however, a number of issues that must be addressed in respect of such a protocol, namely:
  • ICMP Internet Control and Management Protocol
  • a data transmission network having a number of network nodes, which include routers and end terminals, said network being adapted to establish end-to-end data transmission paths between end terminals, characterised in that said network is adapted to establish said data transmission paths using a hop-by-hop resource reservation signalling protocol including an Internet Control and Management Protocol (ICMP) for message transportation.
  • ICMP Internet Control and Management Protocol
  • the hop-by-hop resource reservation signalling protocol may be a RING - Reservation pING protocol.
  • the data transmission network may be adapted to use ICMP ECHO and ICMP REPLY messages (PING) for message transportation.
  • the data transmission network may include means for specifying per hop behaviour for different types of traffic, and the different types of traffic may be indicated by a Type of Service (ToS) field in an IP header of an IP data packet.
  • the means for specifying per hop behaviour for different types of traffic may be provided by a Differentiated Services (DiffServ) mechanism.
  • DiffServ Differentiated Services
  • the hop-by-hop resource reservation signalling protocol may be adapted to provide an IP flow specified in a resource reservation message with a hard Quality of Service (QoS) in RING-aware parts of the network and a soft QoS in DiffServ capable network domains.
  • QoS Quality of Service
  • At least some of said network nodes may be passive and be adapted to set output flags and forward RING messages.
  • the routers may be IP routers and the IP routers may be adapted to use said resource reservation signalling protocol.
  • the end terminals may be adapted to use said resource reservation signalling protocol.
  • the data transmission network may include an IP platform and the IP routers may be adapted for use in said IP platform for end-to-end resource reservation for IP services.
  • the data transmission network may be adapted to reserve bandwidth both for a forward path and a backward path between end terminals, even if said paths are different paths.
  • the data transmission network may include an Intelligent Resource Management Architecture (IRMA) and said routers may be IRMA routers that are adapted to use said resource reservation signalling protocol.
  • IRMA Intelligent Resource Management Architecture
  • the data transmission network may be adapted to use a File Transfer
  • FTP FTP Protocol
  • a method for establishing said end-to-end data transmission paths characterised by establishing said data transmission paths using a hop-by-hop resource reservation signalling protocol including an Internet
  • the method may be characterised by said hop-by-hop resource reservation signalling protocol being a RING - Reservation pING protocol.
  • the method may be characterised by using ICMP ECHO and ICMP REPLY messages (PING) for message transportation.
  • the method may be characterised by specifying per hop behaviour for different types of traffic. This method may be further characterised by indicating said different types of traffic by a Type of Service (ToS) field in an IP header of an IP data packet.
  • ToS Type of Service
  • This method may be further characterised by providing an IP flow, specified in a resource reservation message, with a hard Quality of Service (QoS) in RING-aware parts of said network and a soft QoS in DiffServ capable network domains.
  • QoS Quality of Service
  • the method may be characterised by said resource reservation signalling protocol generating a 'ping' message containing a signalling message with (a) a source-destination address pair and transport protocol id; (b) user ID and authentication credential (optional); and (c) desired forward and reverse QoS descriptor.
  • This method may be further characterised by said 'ping' message propagating hop-by-hop through said network and by each RING-aware network node performing a CAC lookup to check whether a new flow can be admitted into a hard QoS class.
  • the method may be characterised by said RING-aware network node, in the event that the new flow can be admitted into the hard QoS class, registering the reservation for the new flow.
  • the method may be characterised by said RING-aware network node being an access node, and by said access node creating a mechanism for regulating (policing) the assigned resource.
  • the method may be characterised by said RING-aware network node, in the event that the new flow can not be admitted into the hard QoS class, setting a NACK flag in the reservation message and by forwarding the NACK flag to the next hop.
  • the method may be characterised by a receiving terminal echoing a received 'ping' message along a reverse path to an end terminal that initiated said message, and by reserving resources along said reverse path.
  • the method may be characterised by said receiving terminal being a RING- aware terminal, and by said RING-aware terminal processing the received message.
  • the method may be characterised by said initiating terminal either repeating, downgrading, or revoking, the last request, in the event that a NACK flag has been set, or a reservation message is lost.
  • the method may be characterised by said network nodes releasing resource reservations for inactive flows after a predetermined period of time.
  • a router for a data transmission network characterised in that said router is adapted to use a hop-by-hop resource reservation signalling protocol including an Internet
  • the router may be an IP router and the IP router may be adapted for use in an IP platform for end-to-end resource reservation for IP services.
  • the router may be an IRMA router, adapted for use in an Intelligent Resource Management Architecture.
  • an end terminal for a data transmission network characterised in that said end terminal is adapted to use a hop-by-hop resource reservation signalling protocol including an Internet Control and Management Protocol (ICMP) for message transportation.
  • ICMP Internet Control and Management Protocol
  • a data transmission system characterised in that said system includes a data transmission network as outlined in preceding paragraphs, or uses a method as outlined in preceding paragraphs
  • a data transmission system characterised in that said network includes a router, or an end terminal, as outlined in preceding paragraph.
  • Figure 1 diagrammatically illustrates, in the form of a block diagram, resource reservation in a data transmission network using a RING protocol.
  • ICMP Internet Control and Management Protocol
  • id Transport Protocol Identification
  • IP Internet Protocol
  • IRMA Intelligent Router Management Architecture
  • the data transmission network of the present invention uses an ICMP based hop-by-hop resource reservation protocol for differentiated services and that the use of ICMP echo messages for transport reservation messages is unique and ensures transparency by virtually every existing network component
  • a resource reservation signalling protocol of the present invention relies on the existing ICMP ECHO and ECHO REPLY messages (i.e. PING) for transport.
  • the objective of using this protocol is to provide an IP flow, specified in a reservation message, with a hard QoS (Quality of Service) in the RING-aware part of the network and a soft QoS in the DiffServ capable domains.
  • a 'ping' message is generated which contains the signalling message with:
  • the 'ping' message propagates hop-by-hop through the network, i.e. as an ordinary 'ping', and each RING-aware network node performs a CAC lookup, i.e. the CAC checks whether, or not, the new flow can be admitted into the hard QoS class.
  • the network node registers the reservation for the flow and, if it is an access node, creates a mechanism for regulating (policing) the assigned resource.
  • the network node sets the NACK flag in the reservation message and forwards it to the next hop.
  • the receiving terminal echoes the message, i.e. as if it were an ordinary 'ping' message, or processes the message, if it is RING-aware terminal, and resources are bound (reserved) in the same way along the reverse path.
  • the initiating terminal is adapted to either repeat, downgrade, or revoke the last request.
  • the network nodes release the resource reservations for inactive flows.
  • this network includes three network nodes, 'b', 'c' and 'd', situated between two end terminals 'A' and ⁇
  • the end terminals 'A' and ⁇ ' are respectively a terminal for a FTP Client and a FTP Server;
  • the network nodes 'b' and 'd' are access nodes, respectively for the end terminals 'A' and 'E';
  • the network node 'c' represents a potential bottleneck node in the transmission network.
  • the end terminal 'A' compiles a signalling message requesting resources for a backward path from the FTP Server 'E' to the end terminal 'A'.
  • the signalling message propagates hop-by-hop, similar to a normal PING, but since no resources are being requested in the forward direction, no action is taken.
  • the FTP Server 'E' When the message reaches the destination, i.e. the FTP Server 'E', it is echoed as an ICMP/ECHO REPLY message and starts to propagate in the reverse direction towards end terminal 'A'.
  • the end terminal 'A' can 'RING-up' the end terminal 'E' in order to reserve a flow with guaranteed bandwidth for the FTP session.
  • bandwidth can be reserved both for the forward path and the backward path between end terminals 'A' and ⁇ ', even if these paths are different paths, which is very beneficial in the case of a symmetrical session, for example, IP telephony.
  • the resource reservation signalling protocol 'RING - Reservation pING' can be implemented in IP routers and end-terminals. Furthermore, such IP routers can be used, for example, in IP platforms for end-to-end resource reservation for IP services.
  • RING-aware routers can be introduced in the bottleneck sections of a network (for example, an access network, a transatlantic link, etc..) in order to ensure that messages with a hard QoS are available for mission critical, or demanding, applications.
  • a network for example, an access network, a transatlantic link, etc..
  • QoS mechanisms for example, DiffServ and IntServ, running on far- end terminals and in the rest of the network, can either cooperate with RING-aware routers, or merely transmit the RING messages transparently.
  • ICMP echo messages for the transmission of reservation messages is unique and ensures transparency by virtually every existing network component
  • the RING protocol is simpler, and scales better, than common resource reservation protocols, for example, RSVP, for uni-cast and sender initiated multi-cast sessions.
  • the processing of the RING protocol requires no signalling states, unlike RSVP which has PATH and RESV states.
  • Network nodes merely forward the RING messages and do not have to generate new messages.
  • the RING protocol can co-operate with other IP QoS mechanisms such as DiffServ, or IntServ, and can, therefore, be gradually introduced into a network.
  • the reservation mechanism of the present invention is not based on a large number of permanent states in network nodes, with the result that unneeded reservations are timed out and new reservations can be made after a failures, or changes (e.g. rerouting), in the network.
  • the RING protocol is relatively simple to implement in IP routers in that it:
  • the present invention is adapted for use in a number of applications, for example, an IP router, in which the resource reservation signalling protocol of the present invention has been implemented, may be used together with the RING protocol to allocate resources for the flows of IP applications, such as RealVideo,
  • the resource reservation signalling protocol of the present invention may also find application a router for an Intelligent Resource Management Architecture (IRMA).
  • IRMA Intelligent Resource Management Architecture
  • the IRMA router could be used, for example, to identifying the requirements on QoS support in a network from the perspective of multimedia applications.
  • an IRMA router, utilising the RING protocol may be used to control QoS during group access of residential users.
  • end-to-end resource management, billing and customer management issues for IP platforms may also be based on an IRMA router which utilises the resource reservation signalling protocol of the present invention.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un réseau de transmission de données comprenant un certain nombre de noeuds de réseau, lesquels comportent des routeurs et des terminaux d'extrémité, et caractérisé en ce que des trajets de transmission de données de bout en bout sont établis entre ces terminaux à l'aide d'un protocole de signalisation de réservation de ressources saut par saut (dénommé protocole 'RING' pour 'Reservation pING protocol'), et en ce qu'un protocole de messagerie Internet (ICMP) est utilisé pour le transport de ces messages. Le réseau met en oeuvre des messages (PING) d'ECHO (ICMP) et de REPONSE (ICMP) pour transporter les messages. Le flot IP, spécifié dans le message de réservation, est doté d'une qualité de service fixe dans la partie basée 'RING' du réseau, et d'une qualité de service dynamique dans les domaines capables de services différenciés.
PCT/SE2000/000387 2000-02-28 2000-02-28 Procede d'etablissement de trajets de transmission de donnees de bout en bout, au moyen du protocole de signalisation de reservation de ressources point par point, base protocole icmp WO2001065782A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/SE2000/000387 WO2001065782A1 (fr) 2000-02-28 2000-02-28 Procede d'etablissement de trajets de transmission de donnees de bout en bout, au moyen du protocole de signalisation de reservation de ressources point par point, base protocole icmp

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Application Number Priority Date Filing Date Title
PCT/SE2000/000387 WO2001065782A1 (fr) 2000-02-28 2000-02-28 Procede d'etablissement de trajets de transmission de donnees de bout en bout, au moyen du protocole de signalisation de reservation de ressources point par point, base protocole icmp

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WO2001065782A1 true WO2001065782A1 (fr) 2001-09-07

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004047381A1 (fr) * 2002-11-16 2004-06-03 Marconi Uk Intellectual Property Limited, Construction d'un chemin dans un reseau a commutation par paquets
KR100461728B1 (ko) * 2002-12-10 2004-12-17 한국전자통신연구원 라우터를 통한 ＤｉｆｆＳｅｒｖ 기반 ＶｏＩＰ ＱｏＳ제공 방법
WO2006038732A1 (fr) * 2004-10-08 2006-04-13 Matsushita Electric Industrial Co., Ltd. Appareil et procede de communication
WO2008052461A1 (fr) * 2006-10-30 2008-05-08 Huawei Technologies Co., Ltd. Procédé de réservation de ressources utilisant un mode push et dispositif d'agence d'appel

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Publication number Priority date Publication date Assignee Title
EP0849970A2 (fr) * 1996-12-20 1998-06-24 Nec Corporation Procédé de transmission de paquets selon le protocole Internet en utilisant un transport de cellules ATM et réseau pour la mise en oeuvre de ce procédé
WO1998037730A1 (fr) * 1997-02-20 1998-08-27 Telefonaktiebolaget Lm Ericsson (Publ) Reservation de ressources dans des reseaux mta
WO1999050999A1 (fr) * 1998-03-31 1999-10-07 Madge Networks Limited Station terminale d'un reseau de telecommunications

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Publication number Priority date Publication date Assignee Title
EP0849970A2 (fr) * 1996-12-20 1998-06-24 Nec Corporation Procédé de transmission de paquets selon le protocole Internet en utilisant un transport de cellules ATM et réseau pour la mise en oeuvre de ce procédé
US5903559A (en) * 1996-12-20 1999-05-11 Nec Usa, Inc. Method for internet protocol switching over fast ATM cell transport
WO1998037730A1 (fr) * 1997-02-20 1998-08-27 Telefonaktiebolaget Lm Ericsson (Publ) Reservation de ressources dans des reseaux mta
WO1999050999A1 (fr) * 1998-03-31 1999-10-07 Madge Networks Limited Station terminale d'un reseau de telecommunications

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H. KITAMURA: "Connection/Link status investigation (CSI) IPv6 Hop-by-Hop option and ICMPv6 messages extension", 1999, pages 1 - 17, XP002946482, Retrieved from the Internet <URL:draft_kitamura_ipv6_hbh_ext_sci_01.txt> *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004047381A1 (fr) * 2002-11-16 2004-06-03 Marconi Uk Intellectual Property Limited, Construction d'un chemin dans un reseau a commutation par paquets
US7450590B2 (en) 2002-11-16 2008-11-11 Ericsson Ab Construction of a path through a packet network
KR100461728B1 (ko) * 2002-12-10 2004-12-17 한국전자통신연구원 라우터를 통한 ＤｉｆｆＳｅｒｖ 기반 ＶｏＩＰ ＱｏＳ제공 방법
WO2006038732A1 (fr) * 2004-10-08 2006-04-13 Matsushita Electric Industrial Co., Ltd. Appareil et procede de communication
WO2008052461A1 (fr) * 2006-10-30 2008-05-08 Huawei Technologies Co., Ltd. Procédé de réservation de ressources utilisant un mode push et dispositif d'agence d'appel

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