WO2006117273A1 - Procede de communication entre noeuds dans un groupe de reseaux - Google Patents

Procede de communication entre noeuds dans un groupe de reseaux Download PDF

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Publication number
WO2006117273A1
WO2006117273A1 PCT/EP2006/061410 EP2006061410W WO2006117273A1 WO 2006117273 A1 WO2006117273 A1 WO 2006117273A1 EP 2006061410 W EP2006061410 W EP 2006061410W WO 2006117273 A1 WO2006117273 A1 WO 2006117273A1
Authority
WO
WIPO (PCT)
Prior art keywords
protocol
communication
communication method
negotiation
nodes
Prior art date
Application number
PCT/EP2006/061410
Other languages
German (de)
English (en)
Inventor
Michael Stal
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2006117273A1 publication Critical patent/WO2006117273A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/24—Negotiation of communication capabilities

Definitions

  • Nodes are understood entities of a network such as servers, terminals, routers, bridges, etc., which can serve as communication partners (peers).
  • Communication conditions are understood here to mean both the network topology and size, the type of applications, the number of users, and so on.
  • This object is achieved by a communication method with a communication protocol and a negotiation protocol, by means of which the exchange, the syntax and the semantics of communication protocol message packets can be dynamically adapted between the nodes.
  • a protocol is defined as a syntactic and semantic rule for the exchange of messages (packets) between two and more communication participants. So defined are the communication itself, ie the exchange of packets, as well as the structure of the message packets.
  • a distinction is to be made, inter alia, between time-controlled methods (ATM, asynchronous transfer mode) and frame-oriented methods (frame relay), which, however, does not play any role in the basic idea of the invention itself.
  • the adaptation of a communication protocol can take place both at the beginning of the communication or the communication section, provided that the communication can be divided into sections, as well as spontaneously during the communication.
  • Package structures and semantics, as well as the transport of message packages, can be adapted.
  • negotiation packets are defined which contain meta-information describing changes.
  • the communication protocol to be adapted is thereby not included in the peer-to-peer negotiations on the type of future communication and remains unaffected in this sense.
  • Negotiations can refer to the questions, which adaptation is desired or accepted, how long the agreement should be valid, who the agreement concerns or what the range of the adaptation should be.
  • a particularly simple communication results when the receipt of a negotiation ends is answered by a node with a Negotiations Acknowledgment packet.
  • the reply of the communication partner may preferably contain an approval, a refusal or a change request, whereby a great deal of flexibility arises during the negotiation phase.
  • Communication errors can occur if, for example, a node fails (temporarily) and is unable to accept the adaptation. These errors are preferably interpreted as a refusal of a change, so that no explicit error handling is necessary. For example, transactional procedures based on timeouts are suitable for this purpose.
  • the negotiation protocol can additionally specify when mutual negotiation phases have ended.
  • a particularly high adaptability of the communication between the nodes can be achieved by the Negotiati- on protocol is used to meet given quality of service standards.
  • the adaptation of the communication protocol is carried out so that QoS (quality of service) parameters such as required data rate / bandwidth, real-time requirement, transmission delay, loss of data packets, among others, are achieved.
  • QoS quality of service
  • the routing can be changed or packet sizes, time slices and other parameters can be adapted to achieve optimal throughput.
  • a particularly high flexibility of communication results when the Negotationsprotokoll is used to add new functionality to the communication protocol. These can, for example, perform compression methods - possibly also dynamically adaptable - or perform security mechanisms, protocol translations and extensions, caching and resource optimisations, and so on. Protocol extensions can still be provided to cover new use cases.
  • the communication method is particularly easy to implement if the Negotiationsprotokoll is integrated into the communication protocol.
  • the resulting adaptive protocol then contains the negotiation packets with the meta-information. Once the negotiation phase is over and the communication partners have agreed on an adaptation, communication takes place with adapted syntax and semantics.
  • the protocol P thus becomes the protocol P f with the aid of the negotiation protocol NP, as can be seen from FIG.
  • Such adaptations may be invasive or non-invasive. In the latter case, only the internal protocol implementation adapts, while in the former case, other, higher-lying protocol layers are affected. In any case, other entities must also be adapted. Conversely, this means that adaptations in peers or intermediaries, see Active Networks, can also trigger a protocol adaptation. Thus, if all entities are adaptive, including the protocol, maximum flexibility results if adaptation of the communication protocol affects higher-level protocol layers.
  • the negotiation protocol can also be based on an existing communication protocol. This possibility offers itself, for example, when using standard- sated protocols such as TCP (Transmission Control Protocol) or HTTP (HyperText Transfer Protocol).
  • TCP Transmission Control Protocol
  • HTTP HyperText Transfer Protocol
  • FIG. 1 shows a communication method on the basis of a protocol adaptation from the prior art
  • Figure 2 shows a communication method based on the protocol adaptation according to the invention.
  • FIG. 1 shows a communication method based on a
  • Protocol adaptation from the prior art.
  • the communication between two nodes A and B via an intermediate node in which, for example, the routing is changed.
  • the communication protocol P and its data packets DP themselves remain invariant and thus restricted in their flexibility and adaptability.
  • FIG. 2 shows a communication method based on the protocol adaptation according to the invention.
  • An intermediate node is not necessary here, the adaptation of the protocol P can be negotiated directly between the nodes A and B.
  • the negotiationsprotokoll NP is used, the data packets DNP are integrated into the communication protocol P.
  • the data packets DP 'of the adapted protocol P f not only contain changed routing information, but were also compressed for faster transmission, for example. Further adaptations may concern, for example, the insertion of additional security information into the protocol P, in particular in order to fulfill predefined QoS parameters.

Landscapes

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

Abstract

L'invention concerne un procédé de communication entre noeuds (A, B) dans un groupe de réseaux au moyen d'un protocole de communication (P) et d'un protocole de négociation (NP). Ce procédé permet d'adapter de façon dynamique l'échange, la syntaxe et la sémantique de paquets de messages (DP) du protocole de communication (P) entre les noeuds (A, B).
PCT/EP2006/061410 2005-05-02 2006-04-06 Procede de communication entre noeuds dans un groupe de reseaux WO2006117273A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005020397.3 2005-05-02
DE102005020397A DE102005020397A1 (de) 2005-05-02 2005-05-02 Kommunikationsverfahren zwischen Knoten in einem Netzwerkverbund

Publications (1)

Publication Number Publication Date
WO2006117273A1 true WO2006117273A1 (fr) 2006-11-09

Family

ID=36644830

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/061410 WO2006117273A1 (fr) 2005-05-02 2006-04-06 Procede de communication entre noeuds dans un groupe de reseaux

Country Status (2)

Country Link
DE (1) DE102005020397A1 (fr)
WO (1) WO2006117273A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432924A2 (fr) * 1989-12-12 1991-06-19 AT&T Corp. Architecture de communication pour réseau à grande vitesse
EP0555997A2 (fr) * 1992-02-10 1993-08-18 AT&T Corp. Appareil et méthodes pour la réalisation de protocoles
WO1997004573A1 (fr) * 1995-07-20 1997-02-06 Telia Ab Procedure de modification d'un protocole au moyen d'un protocole adaptatif
US6359901B1 (en) * 1998-09-02 2002-03-19 General Dynamics Decision Systems, Inc. Method and apparatus for asynchronous adaptive protocol layer tuning

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20000212A (fi) * 2000-02-01 2001-08-02 Nokia Networks Oy Yhteydenmuodostusneuvottelu tietoliikennejärjestelmässä

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432924A2 (fr) * 1989-12-12 1991-06-19 AT&T Corp. Architecture de communication pour réseau à grande vitesse
EP0555997A2 (fr) * 1992-02-10 1993-08-18 AT&T Corp. Appareil et méthodes pour la réalisation de protocoles
WO1997004573A1 (fr) * 1995-07-20 1997-02-06 Telia Ab Procedure de modification d'un protocole au moyen d'un protocole adaptatif
US6359901B1 (en) * 1998-09-02 2002-03-19 General Dynamics Decision Systems, Inc. Method and apparatus for asynchronous adaptive protocol layer tuning

Also Published As

Publication number Publication date
DE102005020397A1 (de) 2006-11-09

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