WO2009143722A1 - Procédé et dispositif pour mettre en œuvre une ingénierie de trafic à services différenciés - Google Patents

Procédé et dispositif pour mettre en œuvre une ingénierie de trafic à services différenciés Download PDF

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Publication number
WO2009143722A1
WO2009143722A1 PCT/CN2009/070961 CN2009070961W WO2009143722A1 WO 2009143722 A1 WO2009143722 A1 WO 2009143722A1 CN 2009070961 W CN2009070961 W CN 2009070961W WO 2009143722 A1 WO2009143722 A1 WO 2009143722A1
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WO
WIPO (PCT)
Prior art keywords
service
traffic engineering
tunnel
tunnel group
traffic
Prior art date
Application number
PCT/CN2009/070961
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English (en)
Chinese (zh)
Inventor
刘小飞
文元癸
李振斌
黄铁英
吴兵
Original Assignee
深圳华为通信技术有限公司
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
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Application filed by 深圳华为通信技术有限公司 filed Critical 深圳华为通信技术有限公司
Publication of WO2009143722A1 publication Critical patent/WO2009143722A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H04L45/245—Link aggregation, e.g. trunking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/302—Route determination based on requested QoS
    • H04L45/306—Route determination based on the nature of the carried application
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/80—Ingress point selection by the source endpoint, e.g. selection of ISP or POP
    • H04L45/85—Selection among different networks
    • 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
    • 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

Definitions

  • the present invention relates to communication technologies, and in particular, to a method and a device for implementing a service flow classification service.
  • MPLS TE Traffic Engineering, Traffic Engineering
  • IP Internet Protocol
  • MPLS Multi-Protocol Label Switching
  • Diff-Serv Differentiated service technology provides three networks (internet, telecommunication network, and wide-area network). When providing bandwidth guarantee, it needs to carry multiple different QoS (Quality of Service) in one network. The target of the required business.
  • NGN Next Generation Network
  • LDP over TE Label Distribution Protocol over TE
  • PWE3 Pseduo Wire Emulation Edge-to-Edge
  • DS-TE Diffserv-TE
  • Diff-Serv is mainly implemented by dividing traffic according to service type and providing different QoS guarantees based on service type.
  • MPLS TE is mainly used to optimize the use of network resources. MPLS TE allows the establishment of an LSP (Label Switch Path) tunnel based on the constrained route. The bandwidth resource can be reserved on the specified path.
  • LSP Label Switch Path
  • the DS-TE combines the advantages of the above two to optimize network resources based on traffic classified by service type, that is, different bandwidth constraints for different service types.
  • the DS-TE divides the traffic into different CTs (Class Types) according to the bandwidth constraint model. The total bandwidth is occupied according to a certain ratio, and each CT is applied separately.
  • Different QoS policies such as fast forwarding services and guaranteed forwarding services, can provide strict bandwidth guarantee services and link bandwidth utilization.
  • MPLS DS-TE is essentially a traffic engineering for each service level, and is a finer-grained traffic engineering technology. MPLS DS-TE adds a class-based function based on the original MPLS TE technology.
  • E-LSP Extra Hop Behavior
  • the E-LSP establishment process is complicated, and the related configuration is also complicated.
  • the signaling and routing protocols need to be extended.
  • the services of the differentiated services in the E-LSP technology are transmitted through the same path, so the ability to avoid risks is not good.
  • the embodiments of the present invention provide a method and a device for implementing a differentiated service traffic engineering, which can implement a differentiated service traffic project simply and conveniently without extending an existing protocol, and can reduce service risks.
  • a method for implementing a service-division-related traffic engineering process includes: binding at least two tunnels corresponding to different service service types into a traffic engineering tunnel group; when the service transmission is required, selecting the service that meets the service requirement Traffic engineering tunnel group; traffic of different services enters different tunnels of the traffic engineering tunnel group.
  • a device for implementing a service-division-related traffic engineering which is provided by the embodiment of the present invention, includes: a binding unit, configured to bind at least two tunnels corresponding to different service service types into a traffic engineering tunnel group;
  • a tunnel group selection unit configured to select a traffic engineering tunnel group that meets service requirements in the traffic engineering tunnel group bound to the binding unit
  • the service transmission unit is configured to transmit the service by using the tunnel in the traffic engineering tunnel group selected by the tunnel group selection unit, and the traffic of different services enters different tunnels of the traffic engineering tunnel group.
  • the method for realizing the service traffic engineering is implemented by using the tunnel technology to bind at least two tunnels corresponding to different service service types into a traffic engineering tunnel group. Selecting a traffic engineering tunnel group that meets the service requirements, and transmitting the service through the tunnel in the traffic engineering tunnel group, so that the service traffic engineering can be implemented simply and conveniently without extending the existing protocol, and different services are differently distributed to different services. Tunnels reduce business risk.
  • FIG. 1 is a flowchart of a method for implementing a service flow classification process according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a networking applied by the method according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an apparatus for implementing a service flow classification process according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a device for implementing a service flow classification service according to an embodiment of the present invention.
  • FIG. 1 shows a flow of a method for implementing a service flow classification process according to an embodiment of the present invention, which mainly includes the following steps:
  • Step 101 Establish a tunnel corresponding to different service service types.
  • an MPLS tunnel is a label switched path (LSP: Label Switch Path), which is implemented by marking the work of the distribution protocol.
  • LSP Label Switch Path
  • the tag distribution protocol is a protocol family that the Label Switch Router (LSR: Label Switch Router) notifies its FEC: Forwording Equivalence Class binding to another LSR, and uses the tag distribution protocol to exchange tags/
  • the two LSRs of the FEC binding information are referred to as tag distribution peer entities corresponding to the corresponding binding information.
  • the tag distribution protocol also includes any negotiation by the tag distribution peer entity to learn about each other's MPLS capabilities.
  • Step 102 Bind at least two tunnels corresponding to different service service types into a traffic engineering tunnel group.
  • Two or more tunnels corresponding to different service service types can be selected as traffic engineering tunnel groups. For example, eight tunnels are selected to form a traffic engineering tunnel group. The service types of the eight tunnels are different, that is, The traffic engineering tunnel group can provide users with traffic transmission of 8 different service types.
  • Step 103 When a service transmission is required, select a traffic engineering tunnel group that meets the service requirement.
  • the ingress router can select a traffic engineering tunnel group that meets the service requirement for the user. There are many ways to choose. For example, it can be selected according to the traffic engineering tunnel group name specified by the user; it can also be selected according to a preset tunnel group policy.
  • the user can be provided with a corresponding selection interface, and the user-specified traffic engineering tunnel group name is obtained through the selection interface, and the corresponding traffic engineering tunnel group is selected according to the name.
  • the user refers to a service operator, and the service operator knows the attributes of each traffic engineering tunnel group and the types of services that can be supported, so that a traffic engineering tunnel group that meets the service requirements can be selected.
  • Step 104 The service is transmitted by using a tunnel in the selected traffic engineering tunnel group.
  • a service forwarding table corresponding to each traffic engineering tunnel group may be established in advance.
  • the traffic engineering tunnel group includes multiple tunnels corresponding to different service types, for example, a tunnel corresponding to a voice service and a tunnel corresponding to a data service, and each tunnel has different attribute parameters (such as bandwidth, etc.) to satisfy The needs of different businesses. Therefore, the service forwarding table includes forwarding entries of all the tunnels in the traffic engineering tunnel group, and the forwarding entry includes: a service type, a tunnel identifier corresponding to the service type, and the like.
  • the one or more tunnels are selected for the service according to the pre-established service forwarding table, for example, for the MPLS packet, according to the experiment in the MPLS packet.
  • the domain (Exp ) selects the tunnel corresponding to the Exp.
  • the tunnel corresponding to the Cos can be selected according to the service type field (Cos: Class of Service) in the IP packet.
  • RTA to RTG is a router
  • RTB is an ingress router
  • tunnel Tunnell/0/O from RTB to RTG, service type CT0, tunnel Tunnell/0/l from RTB to RTG, service type CT1; tunnel Tunnel 1/0/0 and tunnel Tunnell/0 /l is bound to the traffic engineering tunnel group 1.
  • multiple traffic engineering tunnel groups can be established as needed.
  • the ingress router RTB selects a qualified traffic engineering tunnel group for the service through the tunnel policy. Assume that traffic engineering tunnel group 1 is selected. It should be noted that when a traffic engineering tunnel group is selected, if a traffic engineering tunnel group is selected, any tunnel in the traffic engineering tunnel group will not be selected for other services again.
  • the corresponding tunnel is selected to perform service forwarding according to the service forwarding table corresponding to the traffic engineering tunnel group 1, thereby providing different differentiated services.
  • the embodiment of the present invention implements a method for distinguishing the monthly traffic flow engineering, and uses the tunnel technology to establish a tunnel corresponding to different service service types, and binds tunnels providing different service service types to form a dedicated traffic engineering tunnel group.
  • traffic is transmitted, traffic of different services is entered into different tunnels of the traffic engineering tunnel group to provide differentiated services for different services, thereby implementing DS-TE simply and conveniently.
  • the traffic of different services is transmitted through different tunnels of the traffic engineering tunnel group. The interruption of one tunnel service does not affect the services of other tunnels, thus greatly reducing the risk of services.
  • the embodiment of the present invention further provides a device for implementing a service flow classification service.
  • FIG. 3 it is a schematic diagram of the device for implementing a service flow classification service:
  • the device includes: a binding unit 302, a tunnel group selecting unit 303, and a service transmission unit 304, and may further include a tunnel establishing unit 301.
  • the tunnel establishing unit 301 is configured to establish a tunnel corresponding to different service service types.
  • the binding unit 302 is connected to the tunnel establishing unit 301, and is configured to bind at least two tunnels corresponding to different service service types into a traffic engineering tunnel group.
  • the tunnel group selection unit 303 is connected to the binding unit 302 for selecting a traffic engineering tunnel group that meets the service requirements.
  • the service transmission unit 304 is connected to the tunnel group selection unit 303, and is configured to pass the tunnel pair in the traffic engineering tunnel group. The service is transmitted.
  • the tunnel group selection unit 303 can perform a traffic engineering tunnel group selection operation in a plurality of different selection manners.
  • the device that implements the service-division traffic engineering may further include a tunnel group name obtaining unit 305, configured to obtain a traffic engineering tunnel group name specified by the user; the tunnel group selecting unit 303 obtains the tunnel group name acquiring unit 305 according to the tunnel group name acquiring unit 305.
  • the user-specified traffic engineering tunnel group name selects the corresponding traffic engineering tunnel group.
  • the service transmission unit 304 may include: a service forwarding table storage subunit 341, a tunnel selection subunit 342, and a forwarding subunit 343. among them:
  • the service forwarding table storage sub-unit 341 is configured to store a service forwarding table corresponding to different traffic engineering tunnel groups; the tunnel selection sub-unit 342 is configured to select the traffic for the service according to the service forwarding table in the service forwarding table storage sub-unit 341.
  • the tunnel in the engineering tunnel group; the forwarding sub-unit 343 is configured to forward the service to the tunnel selected by the tunnel selection sub-unit 342 for transmission.
  • the device includes: a tunnel establishment unit 401, a binding unit 402, a tunnel group selection unit 403, a service transmission unit 404, and a tunnel group policy storage.
  • the tunnel group policy storage unit 405 is configured to store a preset tunnel group policy;
  • the tunnel establishing unit 401 is configured to establish a tunnel corresponding to different service service types;
  • the binding unit 402 is configured to serve at least two of the corresponding different service services.
  • the type of the tunnel is bound to the traffic engineering tunnel group.
  • the tunnel group selecting unit 403 is configured to select the traffic engineering tunnel group that meets the service requirements.
  • the tunnel group selecting unit 403 can be configured according to the tunnel group policy storage unit 405.
  • the traffic tunneling group is configured by the pre-configured tunnel group policy;
  • the service transmission unit 404 is configured to transmit the service by using the tunnel in the traffic engineering tunnel group.
  • the device for realizing the service flow engineering in the embodiment of the present invention may be an ingress router of the service. With this device, traffic of different services can be transmitted to different tunnels of the traffic engineering tunnel group to implement DS-TE services, and the business risk is greatly reduced.

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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 porte sur un procédé et sur un dispositif pour mettre en œuvre une ingénierie de trafic (TE) à services différenciés (Diff-Serv). Le procédé consiste en ce que : au moins deux tunnels correspondant à différents types de service de services sont liés en un groupe de tunnels TE; le groupe de tunnels TE, selon les exigences de service, est sélectionné, lorsqu'une transmission de service est requise; un trafic de service différent entre dans différents tunnels du groupe de tunnels TE, et les services sont transmis à travers les tunnels du groupe de tunnels TE.
PCT/CN2009/070961 2008-05-28 2009-03-24 Procédé et dispositif pour mettre en œuvre une ingénierie de trafic à services différenciés WO2009143722A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810098272.4 2008-05-28
CNA2008100982724A CN101594289A (zh) 2008-05-28 2008-05-28 实现区分服务流量工程的方法及设备

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WO2009143722A1 true WO2009143722A1 (fr) 2009-12-03

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Cited By (1)

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GB2536079B (en) * 2014-06-25 2021-04-28 Pismo Labs Technology Ltd Methods and systems for transmitting and receiving data through one or more tunnel for packets satisfying one or more conditions

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CN102065020B (zh) * 2011-01-24 2015-04-01 中兴通讯股份有限公司 一种mpls网络中使用隧道组传输l2vpn业务的方法及装置
WO2012103729A1 (fr) * 2011-06-30 2012-08-09 华为技术有限公司 Procédé et dispositif de configuration de tunnel
CN102833173A (zh) * 2012-09-14 2012-12-19 中国联合网络通信集团有限公司 网络设备及隧道适配方法
CN103916303B (zh) * 2014-04-18 2018-01-09 新华三技术有限公司 一种mpls te隧道配置装置和方法
CN105812257B (zh) * 2014-12-29 2019-09-10 中兴通讯股份有限公司 业务链路由管理系统及其使用方法
CN108471629B (zh) * 2017-02-23 2021-04-20 华为技术有限公司 传输网络中业务服务质量的控制方法、设备及系统
CN109714325A (zh) * 2018-12-19 2019-05-03 北京奇安信科技有限公司 一种单向光闸数据传输方法、系统、电子设备和介质
CN113872880B (zh) * 2020-06-30 2024-04-16 华为技术有限公司 网络、数据传输的方法和装置

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CN1863151A (zh) * 2005-09-14 2006-11-15 华为技术有限公司 实现双向流量工程隧道的方法
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CN1863151A (zh) * 2005-09-14 2006-11-15 华为技术有限公司 实现双向流量工程隧道的方法
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CN101163084A (zh) * 2007-11-13 2008-04-16 华为技术有限公司 一种基于类的隧道选择方法和设备

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2536079B (en) * 2014-06-25 2021-04-28 Pismo Labs Technology Ltd Methods and systems for transmitting and receiving data through one or more tunnel for packets satisfying one or more conditions
US11582814B2 (en) 2014-06-25 2023-02-14 Pismo Labs Technology Limited Methods and systems for transmitting and receiving data through one or more tunnels for packets satisfying one or more conditions

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