CN1585403A - Service quality controlling method for light Internet network - Google Patents

Service quality controlling method for light Internet network Download PDF

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CN1585403A
CN1585403A CN 200410024681 CN200410024681A CN1585403A CN 1585403 A CN1585403 A CN 1585403A CN 200410024681 CN200410024681 CN 200410024681 CN 200410024681 A CN200410024681 A CN 200410024681A CN 1585403 A CN1585403 A CN 1585403A
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service
bandwidth
mapping
traffic
optical path
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CN100356757C (en
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魏威
曾庆济
欧阳勇
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上海交通大学
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Abstract

The invention adopts unified DiffServ processing method based on multi-protocol label switching technology and makes integration admission control for service. The classification is made according to priority. It is mapped to different service interface according to different grain and different priority. The control method is automatically adjusted according to network resources. The bandwidth resources are flexibly divided. The invention integrates IP layer technology and optical layer technology relating to QoS control and introduces service convergence and leading between different layers and self-adaptive layer service mapping and virtual topology adaptation/reconstruction technology.

Description

光因特网络的服务质量控制方法 Service quality control method for an optical network Internet

技术领域 FIELD

本发明涉及一种光因特网络的服务质量控制方法,可保证网络服务质量,优化网络资源分配,提高网络资源利用率,属于光因特网络(IP over WDM网络) The present invention relates to an optical method for controlling quality of service of the Internet network, the network can guarantee the quality of service, optimize the allocation of network resources, improve the utilization of network resources, belonging to an optical Internet network (IP over WDM network)

背景技术 Background technique

光因特网将成为下一代网络(NGN)的基础传送平台,其上将提供包括数据、话音以及视频等电信级多种媒体业务。 Optical Internet will become the next generation network (NGN) is the underlying transport platform, on which a variety of media services including data, voice and video telecommunications grade. 为了避免网络资源争用和满足指定的业务服务质量,在该公用网络平台上将需要差分的、公平的资源分配、管理和调度方案,也就是网络服务质量(QoS)保证方法。 In order to avoid network resource contention and meet the specified quality of service, in the public network platform will require differential, equitable resource allocation, management and scheduling program, that is, network quality of service (QoS) assurance methods.

目前光因特网络采用重叠/分离的QoS控制技术分别优化电(IP)层和光(WDM)层网络资源的使用,层间/网间QoS协调机制是静态的或半静态的,例如:业务QoS参数的映射控制与管理是通过手工配置或光用户网络接口(O.UNI),主要还是依靠集中式网管系统来进行,其缺陷体现在:1)重叠/分离的QoS控制机制无法适应网络资源状态动态变化的特性。 Currently optical Internet network using the overlap / separation QoS control technique optimized separately using electrical (IP) layer network resource layer and the light (the WDM), inter-layer / network QoS coordination mechanism is static or semi-static, such as: service QoS control and management of the mapping parameters is configured manually or by an optical user network interface (O.UNI), mainly rely on a centralized network management system to which a defect is reflected in: 1) the overlap / separating mechanism can not meet the QoS control network resource status dynamic characteristics. 在网络中可用带宽、丢包率(PLR)、拥塞等网络状态是动态变化的,并且变化过程具有随机性,这要求整个网络QoS控制机制能实时地监视各层网络状态变化并根据状态变化动态调整QoS控制策略,即能对资源状态变化具有自适应能力,显然静态的层间QoS配置和管理控制是无法满足的;2)重叠/分离的QoS控制机制无法对网络资源进行优化合理的利用和分配,往往导致资源利用率很低或者网络拥塞。 Available bandwidth in the network, packet loss rate (the PLR), the network congestion state is dynamic, and the variation is random process, which requires the entire network QoS control mechanisms to monitor network status change of each layer and the dynamic changes in real time according to the state QoS control strategy adjustment, i.e., can have adaptive to changes in resource status, configuration and management of QoS control between the layers is apparently still not satisfied; 2) overlapped / not separate QoS controls for reasonable use of network resources and to optimize distribution, often resulting in low utilization rate of resources or network congestion. 由于层间QoS缺乏必要的协调和资源管理机制,往往在业务负载较大时,其提供的业务服务质量明显下降,因而整个网络的资源分配、控制和管理方案是低效率的;3)单层的QoS控制机制(无论是电层或是光层的)都无法单独满足宽带多媒体业务传输性能的多方面要求。 Due to the lack of necessary coordination and QoS resource management mechanism between layers, often in the traffic load is large, the quality of service it provides decreased significantly, and thus the entire network resource allocation, control and management programs are inefficient; 3) single-layer QoS control mechanism (either the dielectric layer or light absorbing layer) can not meet the various requirements of broadband multimedia service transmission performance separately. 单一QoS控制机制仅局限于优化某种(某几种)业务,对所有业务都适应的QoS控制机制是不存在的。 Single QoS control mechanisms is limited to certain optimization (certain kinds of) business, QoS control mechanisms to adapt to all traffic is non-existent.

因此为满足多种类型业务传送请求,在光因特网中有必要集成光层与电层的QoS控制技术,将各种QoS机制有机结合以获得高性能和低成本的集成QoS解决方法。 Thus to meet a variety of types of service transfer request, it is necessary to integrate the light in the optical layer and the Internet layer QoS control technology, various QoS mechanisms to obtain a combination of high performance and low cost, integrated QoS solution. 目前随着通用多协议标记交换(GMPLS)技术引入到光因特网中,集成QoS控制已经成为一种可能。 With the current General Multi Protocol Label Switching (the GMPLS) technique is introduced into the optical Internet, QoS control integration has become possible.

发明内容 SUMMARY

本发明的目的在于针对目前光因特网络的分离/重叠QoS控制模型的缺点,提供一种光因特网络的服务质量控制方法,适应于集成式光因特网体系结构模型和多粒度光电混合路由器节点模型,能够满足多种媒体类型以及多种粒度的业务传送需求,高效地为传送多种媒体业务流提供相对应的服务质量保证。 Object of the present invention is the separation of light for the current Internet network / QoS control shortcomings overlap model, there is provided an optical method for controlling quality of service of the Internet network, adapted to the integrated optical and Internet architecture model opto-electric hybrid multi-granularity router node model, it is possible to meet the business needs of various transmission media types and a variety of particle sizes, to provide efficient quality of service corresponding to the plurality of transmitting media service stream.

为实现这样的目的,本发明的方法中,采用了a)基于GMPLS的统一的业务差分处理方法,它融合了光层QoS技术与电层QoS技术,针对不同类型业务自动采用不同层面的QoS控制技术;b)集成准入控制方法;c)灵活简洁的业务分类和光路分类方法;d)自适应的业务映射方法;e)优化的带宽资源分配方法。 To achieve this object, the method of the present invention, using a) a unified service differentiation processing method GMPLS-based, which combines optical layer QoS technology and electrically QoS technical level, automatically using QoS control at different levels for different types of traffic technology; b) integrated admission control method; c) flexible and simple business class classification method and the optical path; D) adaptive service mapping method; E) bandwidth resource allocation method optimized. 它将与QoS控制相关的IP层技术、光层技术进行有机集成,引入了层间的业务聚合/疏导和自适应的层间服务映射与虚拓扑适配/重构技术,能够为传送多种媒体业务流提供相对应的服务质量保证,同时得到较高的网络资源利用率。 It is associated with the IP layer QoS control technology, optical technology layer were integrated, is introduced between the inter-layer traffic aggregation / grooming and adaptive virtual topology mapping service layer adaptation / reconstruction technique, it is possible to transmit more streaming media service to provide quality service assurance corresponding to the same time get a higher utilization of network resources.

本发明的QoS控制方法集成了电层QoS处理与光层QoS处理功能,实现层间业务QoS自动适配、管理和控制,例如对不同粒度、不同优先级的业务自动适配,以及根据网络资源、链路负载等,自动进行业务准入控制和带宽资源分配等。 QoS control method of the present invention incorporates an optical power level QoS QoS processing layer processing function to realize automatic adaptation interlayer service QoS, management and control, for example, different sizes, different priority traffic is adapted automatically according to the network resources, and link load, etc., automatic service admission control and bandwidth allocation. 本发明主要包括以下关键操作:1)集成准入控制(IAC),它不但应用在分组(流)级别而且应用在光路级别,在准入业务流过程中,必须要考虑到光路传输质量,WDM链路带宽利用率等特性。 The present invention includes the following key: 1) Integrated Access Control (IAC), which is not only applied in the packet (stream) level and the application of the optical path level, the access service flow process, must take into account the optical path of the transmission quality, the WDM link bandwidth utilization characteristics. 另外因为所有分组业务都是在光路上传送,它还考虑到了节点分组处理能力限制,丢包率,延迟、抖动等电层QoS指标;2)自适应的业务/光路分类与映射,主要是将应用层业务以及光路进行优先级分类,并能根据网络资源利用状况动态地将光层与电层的QoS控制机制相结合以进行业务映射操作;3)灵活的带宽资源分配与调度,主要完成各种优先级/各种粒度业务流的带宽分配、业务调度与疏导,与一般的分组调度算法不同的是,它可以直接将业务调度到光层传送,或者疏导到电层进行转发,它主要根据业务特性和策略管理器完成不同粒度带宽的分配和网络资源的有效利用。 Moreover, because all packets are transmitted in the optical path of the traffic, the node also takes into account the packet processing capability limit, packet loss rate, delay, and jitter QoS index layer electrically; 2) adaptive traffic / classification and mapping the optical path, the main application layer service and the optical path priority category, and can dynamically QoS control mechanism of the light absorbing layer and the dielectric layer in combination for service mapping operation based on the using condition of the network resource; 3) flexible bandwidth allocation and scheduling, mainly to complete each kinds of priority / bandwidth allocation, traffic scheduling and traffic flows grooming various size, general packet scheduling algorithm is different, it can be directly dispatched to the traffic light transmission layer, or to divert forwarding layer, it is mainly in accordance with service features and policy Manager to complete the efficient use of network resources and allocation of different granularity bandwidth.

本发明的控制方法主要包括如下具体步骤:第一步:设置带宽控制门限参数;根据网络运营商网管人员输入,配置带宽控制门限参数,用于控制后续的业务分类和业务映射操作。 The control method of the present invention include the following specific steps: Step 1: Set bandwidth control parameter threshold; according to the input network operator administrators configured threshold bandwidth control parameter for controlling the subsequent traffic classification and traffic mapping operations.

第二步:网络资源数据库更新;系统启动控制平面进程,包括路由和链路管理子进程,通过光扩展的最短路径优先路由协议(OSPF-TE)和链路管理协议(LMP)维护和更新网络资源数据库。 Step two: the network resource database update; control plane system boot process, including routing and link management sub-process, by an extended light Shortest Path First Routing Protocol (OSPF-TE) and the Link Management Protocol (LMP) maintain and update the network resource database.

第三步:业务集成准入控制;根据业务流的带宽、丢包率、延迟、抖动等服务质量需求,并根据当前网络资源使用状况,它不但考虑光层的资源,例如光路传输质量、波分复用(WDM)链路带宽等,而且还考虑了电层的资源,例如节点分组处理能力限制、虚链路带宽等指标,判断是否允许业务接入。 The third step: integration service admission control; according to the bandwidth, packet loss rate of the traffic flow, delay, jitter, quality of service requirements, and based on the current usage of network resources, it is considered not only the optical layer resources, such as the transmission quality of the optical path, the wave division multiplexing (WDM) link bandwidth, but also consider the resources of the dielectric layer, such as node packet processing capacity constraints, the virtual link bandwidth and other indicators, determine whether to allow service access.

第四步:业务分类;本发明的业务分类方法包括电层业务服务等级分类和光层业务服务等级分类。 Step Four: traffic classification; service classification method of the present invention comprises a dielectric layer and the light-classification service level layer service level classification. 电层业务服务等级分成三大类:1)需要硬QoS保证的服务等级业务,它需要严格的时延和抖动保证(业务类型A);2)需要软QoS保证的服务等级业务,它需要统计意义上的时延和抖动保证需求(业务类型B);3)需要传统尽力而为(BE)服务等级业务(业务类型C)。 Layer service level is divided into three categories: 1) require hard QoS guaranteed service level business, it needs to ensure strict delay and jitter (business type A); 2) the need soft QoS guaranteed service level business, it needs statistics ensure delay and jitter requirements (business type B) in the sense; 3) the need for traditional best-effort (BE) service rating business (business type C). 光路服务等级的分类主要是基于光路的传输性能,本发明将光路分为两大类:1)高质量(HQ)光路服务等级(主要承载高优先级业务等);2)低质量(LQ)光路服务等级(主要承载低优先级业务等)。 Classification service level light path mainly transmission performance based on the optical path, the present invention is the optical path into two categories: 1) high quality (HQ) optical path service class (mainly carries the high priority traffic, etc.); 2) low quality (LQ) service level light path (main bearing low-priority traffic, etc.).

第五步:业务映射;根据前面业务服务等级的分类,本发明设计了一种集成业务动态映射方法,它分别包括业务垂直映射方法和业务水平映射方法。 Step Five: service mapping; classification according to the service level of the foregoing, the present invention contemplates an integrated services dynamic mapping methods, which include vertical service mapping method and the level of service mapping method.

(a)业务垂直映射方法是一种自适应的动态服务映射方法,它将不同类型业务映射到不同的服务接口,其QoS处理方法不同。 (A) Vertical traffic mapping method is an adaptive dynamic service mapping method, different types of services will be mapped to different service interfaces, which is different QoS treatment. 在电层服务映射层面上,对于每种类型业务采取不同的QoS映射方法,每种业务可根据业务带宽粒度以及速率类型(例如固定比特速率/可变比特速率)进行动态的业务映射。 At power level layer service mapping, for each type of service to take different QoS mapping method, each service may be dynamically mapping service rate according to the service type and bandwidth granularity (e.g., a fixed bit rate / variable bit rate). 例如:对于虚拟专用网(VPN)业务、电路仿真业务(CES)、分组话音中继业务等映射到硬QoS保证的服务等级(服务类型A)上;对于分组话音中继业务、数字电视业务(DTV)、网格计算业务、部分存储业务(内容分发)业务等映射到软QoS保证的服务等级(服务类型B)上;对于内容存储、内容分发业务;传统尽力而为等类型数据业务等映射到BE服务等级(服务类型C)上。 For example: For a virtual private network (VPN) service, circuit emulation service (the CES), the packet is mapped to services such as voice trunk hard QoS guaranteed service level (service types A); for relaying packet voice service, digital television service ( a DTV), grid computing service, service storage section (content delivery) mapped to operations like soft QoS guaranteed service level (service type B) on; for the content storage, the content distribution service; traditional best effort data services and other types of mapping BE to the service level (service type C). 在光层服务映射层面上,对于硬QoS保证的服务等级(服务类型A)直接映射到高质量(HQ)光路服务等级;根据业务带宽控制门限,软QoS保证的服务等级(服务类型A)可以映射到低质量(LQ)光路服务等级或者高质量(HQ)光路服务等级上;BE服务等级(服务类型C)直接映射到低质量(LQ)光路服务等级上。 On the light layer service mapping level for hard QoS guaranteed service level (service type A) directly mapped to a high-quality (HQ) optical path service level; according to the service bandwidth control threshold, soft-QoS guaranteed service level (service types A) may mapped to the lower quality (LQ) on the optical path, or class of service quality (HQ) optical path service class; the BE service class (service type C) are directly mapped to the low quality of service level on the optical path (LQ). 同时本发明的映射方案可根据不同带宽粒度(设置带宽门限),采取不同的映射方法,即大于门限,映射到高优先级服务等级,否则映射到低优先级服务等级。 Meanwhile mapping scheme according to the present invention may be different bandwidth granularity (threshold set the bandwidth), to take a different mapping method, i.e., greater than the threshold are mapped to a high priority service class, or mapped to a lower priority service class.

(b)业务水平映射方法将电(分组)交换技术优势与光(线路)交换技术优势相接合,设计了三种业务水平映射方案,它包括:1)单跳(光路)映射;2)虚电路(多跳)映射;3)数据报映射方式等。 (B) operational level mapping method electrical (packet) switching technology advantages and light (line) switching technology advantages engagement, designed three operational level mapping scheme, comprising: 1) a single-hop (optical path) is mapped; 2) Virtual a circuit (multi-hop) mapping; 3) data packet mapping methods. 同时业务水平映射还采用了混合映射方法,即根据业务服务等级和带宽粒度采取灵活的映射方案,例如:对于低速率低优先级业务(例如,收费低廉的数据业务和流媒体业务等)请求采用分组交换技术的虚电路方式,高速率高优先级业务(例如大带宽流媒体业务和电路仿真业务等)连接请求采用单跳(光路)映射方式。 While also using a map service level hybrid mapping method, i.e., to adopt a flexible mapping scheme according to a service level and a bandwidth size, for example: For low-speed low-priority traffic (e.g., data services and low fees streaming media service, etc.) request using virtual circuit packet switching technology, high-speed priority service (e.g. high bandwidth streaming services and circuit emulation services, etc.) using a single-hop connection request (optical paths) are mapped.

第六步:带宽资源分配;本发明采用如下的带宽资源分配方法:(a)对于需要硬QoS保证的类型业务流(A类业务),采用峰值带宽准入控制方法。 Step Six: bandwidth resource allocation; the present invention is as follows bandwidth resource allocation method: (a) the need for hard QoS guarantees traffic flow type (A type service) using peak bandwidth admission control method. 即如果存在一个直通的高质量(HQ)光路,满足则准入,否则,创建一条直通的HQ光路,如果创建失败,则拒绝该连接请求。 I.e., if there is a through high quality (HQ) optical path, to meet the entry, otherwise, to create a light path through the HQ, if the creation fails, then the connection request is rejected.

(b)对于需要软QoS保证的类型业务流(B类业务),采用基于速率封装复用(REM)技术的有效带宽准入控制方法。 (B) the need for soft-QoS guaranteed traffic flow type (B type service), using an effective bandwidth admission control method based on the rate of package multiplexing (REM) technology. 业务类型B代表了大部分的实时流媒体业务,由于其粒度相差较大,例如分组话音(VoIP)和数字电视(DTV)业务,因此对于不同带宽粒度的类型B业务流,采取了不同的QoS控制方法,为此设计了一个带宽控制门限Sb,th,对于有效带宽超过Sb,th的业务流,将其映射到高质量光路上(一般是单跳的),否则映射到低质量的光路上(一般是多跳的),如果现有光路无法满足带宽需求,则触发创建新的光路,如果创建失败,则拒绝该连接请求。 B represents the type of service most of the real-time streaming media service, because of their large size difference, for example, voice packet (VoIP) and digital television (DTV) service, and therefore on the type of traffic streams of different bandwidth granularity B take different QoS control method, a bandwidth control designed for this threshold Sb, th, the effective bandwidth exceeds Sb, th traffic flow, which is mapped to a high-quality optical path (generally single hop), or the mapping into the light path of low mass (usually multi-hop), if the existing optical path bandwidth requirements can not be met, then triggers the creation of a new optical path, if creation fails, the connection request is rejected.

(c)对于尽力而为(BE)类型的业务流(C类业务),采用最小带宽准入控制方法,只保证接入业务的最小带宽,采用闭环控制和BE业务间公平共享技术以尽可能地提高网络的吞吐能力。 (C) for a best effort (BE) type of traffic flow (C type service), admission control method using the minimum bandwidth, minimum bandwidth guaranteed only access service, fair share using techniques and closed-loop control between the BE traffic to the extent possible improve the handling capacity of the network. 该类型业务代表了大部分的非实时数据业务,例如文件传输(FTP)、WWW以及后台存储数据业务等。 This type of business represents the majority of non-real-time data services, such as file transfer (FTP), WWW and back-end storage data services. 该类型业务一般只在多跳的LQ光路上传送,并不能主动创建光路。 This type of service is generally only in the multi-hop transmission LQ light on the way, and can not take the initiative to create the optical path. 即如果存在一个LQ光路,满足其最小带宽要求则准入,否则直接拒绝该连接请求。 LQ i.e. if there is a light path, which satisfies the minimum access bandwidth requirements, directly or rejects the connection request.

第七步:配置光层和电层的带宽资源;通过光扩展的资源预留协议(RSVP-TE)配置光层和电层的带宽资源,并更新网络资源数据库。 Step Seven: light-emitting layer and a dielectric layer disposed bandwidth resources; and a photosensitive layer disposed bandwidth resource layer by light Resource Reservation Protocol (RSVP-TE), and updates the network resource database.

与传统的分离/重叠的QoS控制机制相比,本发明控制方法可以得到较高的网络资源利用率与优化的网络服务质量,同时也降低了网络QoS控制的复杂性,具有非常好的实用性。 Compared with conventional separation / QoS control mechanisms overlapping control method of the present invention can get a higher quality of service network utilization and optimization of network resources, but also reduces the complexity of the network QoS control, has a very good practical . 其优点为:·光电集成的业务差分服务方法:它融合了光层QoS技术与电层QoS技术于一体,针对不同类型业务自动采用不同层面的QoS控制技术。 The advantages are: · Differential Optical integrated business service method: it combines light layer QoS QoS technology and electrical technology in one layer, using automatic control technology at different levels of QoS for different types of services. 电层QoS技术采用虚电路差分技术保证QoS,主要用于小粒度、速率可变、中低优先级业务的服务质量控制。 Layer technology uses virtual circuit QoS guaranteed QoS differential techniques, mainly for small particle size, variable-rate, low-priority traffic quality of service control. 基于波长交换技术的光层QoS控制简单,易于实现,且由于其不需要缓冲区,一般用于大粒度、固定速率(CBR)、高优先级业务的服务质量控制。 Wavelength light absorbing layer QoS control based switching technology is simple, easy to implement, and because it does not require a buffer, typically a large particle size, a fixed rate (the CBR), QoS control of high priority traffic.

·多粒度业务的智能化QoS控制:在该控制方案下,光因特网络可以自动提供三种形式的保证QoS的传送服务:1)波长、子波长的电路业务(例如,大粒度实时流媒体业务等);2)各种粒度的虚电路业务(实时业务,高可靠性的数据业务等);3)以及无连接的数据报业务(传统BE业务等)。 Multi granularity intelligent service QoS control: In this control scheme, the optical Internet network can automatically provide three forms of QoS guaranteed delivery service: 1) wavelength, sub-wavelength circuit service (e.g., live streaming large particle size services, etc.); 2) the particle size of the various virtual circuit services (real-time traffic, high reliability of data services); 3) and a data packet service (connectionless traditional BE traffic and the like). 该方案能够根据需求自动为每种类型业务提供合适的QoS映射和传送服务。 This scheme can automatically provide appropriate QoS mapping and transfer service for each traffic type according to the needs.

·能够满足下一代光因特网的电信级应用:能够支持各种类型电路仿真业务(CES),以及各种粒度类型业务的传送,业务分类、光路分类、业务映射以及带宽分配方法比较简单,扩展性好。 · To meet the next generation of optical carrier applications Internet: capable of supporting various types of circuit emulation service (the CES), and a transmission, traffic classification, classification of the optical path, and a bandwidth allocation service mapping method is relatively simple type of traffic of various size, scalability it is good.

附图说明 BRIEF DESCRIPTION

图1为多业务集成式光因特网络。 FIG. 1 is a multi-service Internet integrated optical network.

图2为多粒度光电混合路由器节点结构示意图。 FIG 2 is a schematic diagram of multi-granularity opto-electric hybrid router node structure.

图3是本发明中的业务差分处理方法示意图。 3 is a schematic service differentiation processing method of the present invention.

图4为本发明中的集成业务动态映射方法示意图。 Integrated Services Dynamic mapping method of the present invention, FIG. 4 FIG.

图4中,a为业务垂直映射方法示意图,b为业务水平映射方法示意图。 In FIG. 4, a vertical service mapping method is a schematic view, b is a schematic view of service level mapping method.

图5是本发明的方法流程图。 FIG 5 is a flowchart of a method according to the present invention.

具体实施方式 Detailed ways

本发明的具体实施方式涉及到图1到图5,下面按照次序逐一介绍。 DETAILED DESCRIPTION The present invention is directed to FIG. 1 to FIG. 5, described below one by one in the order.

本发明主要应用于下一代多业务光因特网络中。 The present invention is mainly applied to next-generation optical multi-service Internet network. 图1为典型的下一代多业务集成式光因特网络,在其骨干部分是集成式光因特网络,它由多个多粒度光电混合路由器通过光波分复用(WDM)链路互联而成。 FIG. 1 is a typical integrated optical generation multi-service Internet network, in which the backbone of the Internet is an integrated optical network, which consists of a plurality of multi-size opto-electric hybrid optical wavelength division multiplexing router (WDM) links interconnected together . 同时在其边缘部分由电话网络(通过媒体网关)、传统IP网络、无线网络、城域网络(MAN)、存储网络(SAN)、内容分发网络(CDN)等业务汇聚网络构成。 Simultaneously at an edge portion of the telephone network (via a media gateway), the traditional IP network, a wireless network, metropolitan area network (MAN), storage networks (SAN), content delivery network (CDN) constituted an aggregation network business. 集成式光因特网络负责为多种类型的边缘汇聚网络提供传送服务,并同时保证其传送服务质量。 Integrated optical Internet network responsible for various types of edge aggregation network provides delivery services, while ensuring that the transmission quality of service.

多粒度光电混合路由器是图1所示的集成式光因特网络中的核心节点,它也是运行本发明集成QoS控制方法的载体,其结构如图2所示,由光交换结构(OSF)、光背板(OB)、电交换结构(ESF)、线卡等组成。 Multi-size opto-electric hybrid core node router are integrated optical Internet network shown in Figure 1, which is also integrated support QoS control operation of the method of the present invention, the structure shown in Figure 2, the optical switch structure (the OSF), The optical backplane (OB), an electrical switch fabric (ESF), line cards and other components. 来自群路接口的光信号-光标记交换路径(OLSP)以及支路接口的电信号-电标记交换路径(ELSP)在集成交换结构(ISF)内被聚合和疏导。 Channel optical signal from the group interface - electrical optical label switching path (OLSP) and tributary interfaces - electrically label switched paths (ELSP) are polymerized in the integrated switching and channel structure (ISF). 一般而言,在光路由器内部,多个ELSP到一个OLSP的复用称为聚合,由一个OLSP到多个ELSP的解复用称为疏导。 Generally, within the optical router, to a plurality of ELSP referred to as polymerization OLSP multiplexing, by the demultiplexing to a plurality OLSP ELSP called by grooming.

图3为本发明分布式业务差分处理方法的具体实施方式,它涉及了多个分布式操作组件以及相互交互过程,所有操作部件均存在于光路由器节点中(见图2)。 DETAILED DESCRIPTION differential distributed service processing method of the present invention, FIG. 3, it involves operating the plurality of distributed components and the mutual interaction, all components are present in the operation of the optical router nodes (see Figure 2). 业务分类是所有业务QoS操作的基础,业务分类方法主要针对不同优先级类型业务,采取相对应的QoS资源分配方法,如优先带宽分配、优先选路、优先排队、优先保护/恢复等,从而为应用层业务流提供相对应的服务质量等级。 Business classification is the foundation of all business QoS operations, business classification method focuses on different priority types of business, take QoS resource allocation method corresponding to such priority bandwidth allocation, priority routing, priority queuing, priority to the protection / recovery, so as to the application layer traffic flows provide a corresponding quality of service level. 考虑到扩展性和实用性的原则,业务服务等级的数量应相对较小。 Taking into account the principle of scalability and practicality, the number of service level should be relatively small. 为此本发明设计了如下的业务分类和光路分类方案,分别见表1和表2(它们是业务分类方法的具体实施方式),其中光路服务等级的分类主要是基于光路的传输性能(误比特率一BER指标)。 For this purpose the present invention envisages the following operational classification and optical classification scheme, are shown in Table 1 and Table 2 (which is a specific embodiment business classification method), wherein the classification of the optical path service level is mainly a transmission performance of the optical path based on (bit error a rate BER index). 业务分类操作部件按照表1进行差分业务分类,光路分类操作部件按照表2进行差分光路分类。 Differential traffic classification operation member traffic classification according to Table 1, the optical path difference sorting operation for the light path member classified according to Table 2.

表1.IP层服务等级分类 Table 1.IP layer service level classification

表2.光层服务等级分类 Table 2. light layer service level classification

在图3中,在基于通用多协议标记交换(GMPLS)的统一控制平面内部,有集成准入控制机制、集成路由计算、集成资源预留、集成生存性机制、全局流量工程数据库等。 In FIG 3, based on generic unified Multiprotocol Label Switching (the GMPLS) control plane internal, integrated access control mechanism, the integrated route calculation, integrated resource reservation, survivability integration mechanism, the overall traffic engineering database. 其中集成路由计算又涉及到波长路由分配(RWA)和约束路由(CBR)等操作。 Wherein the integrated route calculation and route involves the wavelength assignment (the RWA) and constraint-based routing (CBR) operation. 在多粒度转发平面内部涉及到业务分类操作、业务映射操作、业务调度管理;业务疏导、光路分类操作、光路映射操作以及光路传输操作等。 Relates to internal forwarding plane traffic classification operation in the multi-granularity, service mapping operation, the schedule management service; traffic grooming, classification operation optical path, the optical path and an optical path mapping operation transmission operation. 其中在转发平面内部涉及到的操作均在分布式的GMPLS控制平面集成控制和管理下。 Wherein the internal operation of the forwarding plane are involved in a distributed GMPLS control plane under the integrated control and management. 具体工作过程如下:首先光因特网络中的每个光路由器根据光扩展的路由协议(例如,OSPF-TE和LMP)得到网络拓扑和资源数据库(TEDB)供集成准入控制机制、集成QoS路由计算、集成资源预留、集成生存性机制等操作模块使用。 Specific process is as follows: First, each of the optical network Internet obtained optical router network topology and resource database (the TEDB) The light extended routing protocol (e.g., OSPF-TE and LMP) admission control mechanism for an integrated, integrated QoS routing computing, integrated resource reservation, integrated survivability mechanisms and other operational modules. 当一个业务连接请求到达时(均来自于应用层),首先要进行业务分类操作,然后根据分类结果调用业务映射操作,将业务映射到不同的处理策略。 When a service connection request arrives (from both the application layer), to perform traffic classification operations first, and then call the service mapping operation according to the classification result, maps traffic to different processing strategies. 不同的业务处理方案由业务调度管理完成,或者直接被调度到光路上,进入光路映射操作,或者被调度到业务疏导,然后再进入光路映射操作,最后由光路传输操作完成业务传送,其中光路分类操作负责为新建光路进行分类。 Different service processing program is completed by the business schedule management, or directly dispatched to the optical path, into the optical path mapping operation, or is scheduled to service grooming, and then enters the optical path mapping operation, and finally complete the service transmitted by the optical path of the transfer operation, wherein the optical path classification responsible for operations classified as new optical path. 统一控制平面协调与控制层间QoS的映射和虚拓扑重构,同时通过高效率的业务疏导,从而进行资源的合理分配。 Unified control map virtual topology reconstruction and inter-layer coordination and control plane QoS while grooming through efficient business, such rational allocation of resources. 图3中,与各个操作部件相连的虚线表示输入参数。 In FIG. 3, and the broken line represents the individual operating components connected to the input parameters.

图3集成了电层QoS处理与光层QoS处理功能,可以实现层间QoS自动适配、管理和控制,例如对不同粒度、不同优先级的业务自动适配,以及根据网络资源、链路负载,自动进行业务集成准入控制(IAC)。 FIG 3 is electrically integrated with the QoS processing function of the optical layer QoS processing layer, interlayer QoS adaptation may be implemented automatically, manage and control, for example, different sizes, different priority traffic is adapted automatically according to the network resources and link load , automatic integrated service admission control (IAC). 它采用了一种跨层的资源控制策略来实现QoS控制和差分业务供给,使网络的资源(光层、电层以及接口单元等)得到最佳利用。 It uses a cross-layer resource control strategy of QoS control, and to implement differentiated services supplied, so that resources of the network (the optical layer, dielectric layer and an interface unit, etc.) optimally. 图3的业务差分处理方法有三个关键的地方:1)集成准入控制(IAC)不但应用在分组业务流级别而且应用在光路级别(见图3连线),在准入业务过程中,必须要考虑到光路传输质量(BER),WDM链路带宽利用率等QoS特性。 Business difference processing method of Figure 3 has three key areas: 1) Integrated Access Control (IAC) applied, not only in packet traffic flow level and the application level in the optical path (see FIG. 3 connection), the service access procedure, must be taking into account the QoS characteristics of the optical transmission path quality (BER), WDM link bandwidth utilization. 另外因为所有分组业务都是在光路上传送,还必须考虑包处理能力限制,丢包率,延迟、抖动等电层QoS指标;2)自适应的业务/光路分类与映射方法主要是将应用层业务以及光路进行优先级分类,并能根据网络资源利用状况动态地将光层与电层的QoS控制机制相结合以进行业务映射;3)灵活的带宽资源分配与调度,业务调度与疏导主要完成各种优先级/各种粒度的业务带宽分配,与一般的分组调度算法不同的是,它可以直接将业务调度到光层传送,或者疏导到电层进行转发,它主要根据业务特性和策略管理器完成不同粒度带宽的适配和网络资源的有效利用。 Furthermore since all services are packet transmission in the optical path, we must also consider the packet processing limit, packet loss rate, delay, and jitter QoS index layer electrically; 2) adaptive traffic / light path classification and mapping method is the application layer business and optical path priority category, and can dynamically QoS control mechanism of the light absorbing layer and the dielectric layer in combination for service map based on the using condition of the network resource; 3) flexible bandwidth allocation and scheduling, traffic scheduling and grooming mainly to complete various priority service bandwidth allocation / various particle sizes, general packet scheduling algorithm is different, it can be directly dispatched to the traffic light transmission layer, or to divert forwarding layer, which is mainly based on business strategies and management characteristics completes the effective use of network resources and adapting the bandwidth of the different particle sizes.

根据表1和表2的业务服务等级的分类方法,图4(a)为业务垂直映射方法的具体实施方式,它是一种自适应的动态映射模型,这里仅给出了典型的八种业务类型,分别是:虚拟专用网(VPN)业务;电路仿真业务(CES);分组话音中继业务(VoIP);数字电视业务(DTV);网格计算业务;存储业务(内容分发)业务;免费试用的多媒体业务;传统BE类型数据业务等。 The classification in Table 1 and Table 2 service level, and FIG. 4 (a) is a vertical DETAILED DESCRIPTION service mapping method, which is an adaptive dynamic mapping model, where only eight shows a typical business types, namely: virtual private network (VPN) services; circuit emulation service (CES); packet voice relay service (VoIP); digital TV services (DTV); grid computing service; storage business (content distribution) business; free try multimedia services; BE traditional type data services. 在业务到IP层服务映射层面上,对于每种类型业务采取不同的QoS映射方法,每种业务可根据业务带宽粒度以及速率类型(例如,固定比特率/可变比特率)进行动态的业务映射。 To map the IP layer service level for each type of traffic different QoS mapping method adopted in the service, each service may be dynamically mapping service rate according to the service type and bandwidth granularity (e.g., a bit rate fixed / variable bit rate) . 例如:对于虚拟专用网(VPN)业务、电路仿真业务(CES)、分组话音中继业务等映射到硬QoS保证的服务等级(服务类型A)上;对于分组话音中继业务、数字电视业务(DTV)、网格计算业务、部分存储业务(内容分发)业务等映射到软QoS保证的服务等级(服务类型B)上;对于存储业务(内容分发)业务、免费试用的多媒体业务;传统BE类型数据业务等映射到BE服务等级(服务类型C)上。 For example: For a virtual private network (VPN) service, circuit emulation service (the CES), the packet is mapped to services such as voice trunk hard QoS guaranteed service level (service types A); for relaying packet voice service, digital television service ( DTV), grid computing business, part of the storage business (content distribution) mapped to business and other soft QoS guaranteed service levels (service type B) on; for the storage business (content distribution) business, a free trial of multimedia services; traditional type BE data services mapped to the BE class of service (service type C). 在光路映射层面上,对于硬QoS保证的服务等级(服务类型A)直接映射到高质量(HQ)光路服务等级;根据业务带宽粒度门限,软QoS保证的服务等级(服务类型A)可以映射到低质量(LQ)光路服务等级或者高质量(HQ)光路服务等级上;BE服务等级(服务类型C)直接映射到低质量(LQ)光路服务等级上。 On the optical path map level, the hard QoS guaranteed service level (service type A) directly mapped to a high-quality (HQ) optical path service level; according to the service bandwidth granularity threshold, soft-QoS guaranteed service level (service types A) can be mapped to low quality (LQ) service level or quality optical path (HQ) optical path service class; the BE service class (service type C) are directly mapped to the low quality of service level on the optical path (LQ). 在保证业务服务质量的同时,应尽可能地提高网络资源利用率,因此对各种粒度(窄带、宽带)和各种类型业务(包括话音、视频、数据和多媒体应用)必须有一个动态的业务映射处理机制。 While ensuring the quality of service should be possible to improve the utilization of network resources, and therefore various size (narrowband, broadband), and various types of services (including voice, video, data and multimedia applications) must have a dynamic business mapping mechanism. 为此本发明根据不同带宽粒度(设置带宽门限),采取不同的映射策略,即大于门限,映射到高优先级服务等级,否则映射到低优先级服务等级。 To this end the present invention depending on the bandwidth granularity (set the bandwidth threshold), take a different mapping strategies, i.e., greater than the threshold are mapped to a high priority service class, or mapped to a lower priority service class.

图4(b)为业务水平映射方法的具体实施方式,它将电交换技术优势与光交换技术优势相接合,典型的有三种业务水平映射方法,它包括:单跳(光路)映射;虚电路(多跳)映射;数据报无连接映射方式等。 FIG. 4 (b) to the specific embodiments business level mapping method, electrical switching technology advantages and optical switching technology advantages engaged, typically there are three service level mapping method, comprising: a single-hop (optical path) mapping; VC (multi-hop) mapping; connectionless datagram mapping methods. 图4(b)所示的业务水平映射模型采用了混合映射策略,即根据业务服务等级和带宽粒度,低速率低优先级业务请求采用分组交换技术的虚电路方式,甚至尽力而为的传送方式,例如:收费低廉的数据业务和流媒体业务等。 As shown in (b) of FIG. 4 business level mapping model uses a hybrid mapping strategy, i.e. according to the service level and a bandwidth granularity, the low-speed low priority service virtual circuit requests using packet switching technology, even the best effort transmission scheme such as: low fees and data services such as streaming media services. 高速率高优先级连接请求采用光路交换的方式,例如,对于大带宽的流媒体和电路仿真业务等采用单跳光路映射等。 High-speed high-priority connection request by way of the light path switching, for example, large bandwidth for streaming media services such as circuit emulation and single-hop optical path mapping. 对于来自源光路由器节点的每一个业务流连接请求,中间光路由器节点的集成准入控制操作(IAC)会根据表1所示的业务分类方法,同时根据网络资源状况,决定是否接受该请求。 For each service flow connection request from a source light router node, intermediate optical integrated access control router node operation (IAC) method based on traffic classification shown in Table 1, while according to the network resource status, decides whether to accept the request. 一旦决定接受该请求,自适应的业务映射与疏导操作会将业务连接动态映射到不同类型的排队系统,例如:通过高质量(HQ)光路逻辑队列调度直接到达目的光路由器节点,或者通过低质量(LQ)光路逻辑队列调度到达下一跳光路由器节点中,由下一跳光路由器节点重复执行上述操作。 Once the decision to accept the request, the service mapping and adaptive grooming service connection operation will dynamically mapped to different types of queuing systems, for example: by a high quality (HQ) directly to the destination node of the optical path of the optical router queue scheduling logic, or by a low mass (LQ) logic an optical path of light queue scheduling the next hop router node, the above-described operation performed by the light-hop router node repeated. 与动态可重构的流量工程链路组相对应的排队系统对应着不同类型(单跳、多跳以及HQ和LQ)的光路连接(见表2)。 Traffic engineering link with the group corresponding to the dynamically reconfigurable queuing system corresponding to different types (single-hop, multi-hop and HQ and LQ) of the optical link (see Table 2).

图5为本发明的集成QoS控制方法的具体实施步骤:第一步:配置带宽控制门限Sb,th参数;根据网络运营商网管人员输入,设置带宽控制门限参数Sb,th,它主要用于控制后续的业务分类和业务映射操作。 DETAILED DESCRIPTION step Integrated QoS control method of the present invention in FIG. 5: Step 1: Configure bandwidth control threshold Sb, th parameter; The network operator inputs the network, bandwidth control threshold parameter set Sb, th, it is mainly used to control subsequent service classification and traffic mapping operations.

第二步:网络资源数据库(TEDB)更新;系统启动控制平面进程,包括路由和链路管理子进程,通过光扩展的最短路径优先路由协议(OSPF-TE)和链路管理协议(LMP)维护和更新网络资源数据库(TEDB)。 Step Two: Network Resource Database (the TEDB) updating; control plane system startup process, including routing and link management sub-process, by an extended light Shortest Path First Routing Protocol (OSPF-TE) and the Link Management Protocol (LMP) Maintenance and update the network resource database (TEDB).

第三步:业务集成准入控制;根据业务流的带宽、丢包率、延迟、抖动等服务质量需求,并根据当前网络资源使用状况,它不但考虑光层的资源,例如光路传输质量、波分复用(WDM)链路带宽等,而且还考虑了电层的资源,例如节点分组处理能力限制、虚链路带宽等指标,判断是否允许业务接入。 The third step: integration service admission control; according to the bandwidth, packet loss rate of the traffic flow, delay, jitter, quality of service requirements, and based on the current usage of network resources, it is considered not only the optical layer resources, such as the transmission quality of the optical path, the wave division multiplexing (WDM) link bandwidth, but also consider the resources of the dielectric layer, such as node packet processing capacity constraints, the virtual link bandwidth and other indicators, determine whether to allow service access.

第四步:按照表1和表2的业务分类方法对业务流执行分类;判断业务流类型(四大类);对于需要软QoS保证的类型B业务流,它代表了大部分的实时流媒体业务,由于其粒度相差较大,例如流媒体业务等,因此对于不同带宽粒度的类型B业务流,采取了不同的QoS控制方法,为此设计了一个带宽控制门限Sb,th,对于有效带宽超过Sb,th的业务流,将其映射到高质量光路上(一般是单跳的),否则映射到低质量的光路上(一般是多跳的),如果现有光路无法满足带宽需求,则触发创建新的光路,如果创建失败,则拒绝该连接请求。 Step 4: According to Table 1 and Table 2 Classification of traffic classification is performed on the service stream; determining traffic flow type (four categories); the need for soft-QoS guaranteed traffic flow type B, which represent the majority of real-time streaming media operations, because of their large size difference, for example, services such as streaming media, and therefore on the type of traffic streams of different bandwidth granularity B take different QoS control method, a bandwidth control designed for this threshold Sb, th, the effective bandwidth exceeds Sb, th traffic flow, to map it to a high-quality optical path (generally single-hop), or mapped to the low quality of the optical path (usually multi-hop), if the existing optical path bandwidth requirements can not be met, the trigger create a new optical path, if creation fails, the connection request is rejected.

第五步:按照图4(a)和图4(b)所示的具体业务映射方法对业务流执行映射操作;第六步:带宽资源分配;针对不同类型优先级业务,采取相对应的带宽资源分配方法,从而为应用业务流提供相对应的服务质量,具体实施方法如下:(a)对于业务类型A,它需要硬QoS保证,采用峰值带宽准入控制方法,即判断是否有直连单跳HQ光路,满足下式:ΣiVaf+ΣjEbf≤C-Va,newf]]>则继续,否则调用集成路由算法计算单跳HQ光路,然后判断是否成功,如果创建失败,则拒绝该呼叫,否则继续。 Fifth step: (a) and 4 (b) specific service mapping method performs mapping shown in the operation flow of traffic in FIG. 4; Step Six: bandwidth resource allocation; priority service for different types, take a bandwidth corresponding to resource allocation method, thereby providing a quality of service corresponding to the application service flow, the specific embodiments as follows: (a) for the service type a, it requires hard QoS guaranteed peak bandwidth admission control method employed, that is, whether there is a single direct jump HQ light path, satisfy the following formula: & Sigma; iVaf + & Sigma; jEbf & le; C-Va, newf]]> continue, otherwise calls the integrated routing algorithm to calculate a single hop HQ optical path, and then determines whether or not successful, if the creation fails, rejecting the call, otherwise continue. 其中C标注光路速率,Vaf标注类型A的业务流峰值速率,Va,newf标注当前请求业务流的峰值速率,Ebf标注类型B业务流的有效带宽,i,j分别标注当前选定的HQ光路的正在服务的类型A业务流数目和类型B业务流数目。 Wherein C marked optical path rate, Vaf marked service flow peak rate of type A, Va, newf marked peak rate of traffic flow for the current request, Ebf denoted effective bandwidth type B traffic flow, i, j are labeled HQ optical path currently selected in the number of traffic streams and the number of types a traffic flow type B serving.

(b)对于业务类型B(带宽大于设定Sb,th),首先基于速率封装(REM)计算有效带宽,类型B业务流的有效带宽计算方法如下(该方法能够保证类型B业务流满足给定的丢包概率): (B) for the service type B (bandwidth greater than the set Sb, th), the package is first based on rate (REM) calculated effective bandwidth, effective bandwidth type B traffic flow is calculated as follows (this method can guarantee type B satisfies a given traffic flow packet loss probability):

其中:a=1-log10PLRb50andzf=-2log10PLRbC/Vb,peakf]]>另外Vb,avergef,Vb,peakf分别标注类型B业务流的平均速率和峰值速率。 Wherein: a = 1-log10PLRb50andzf = -2log10PLRbC / Vb, peakf]]> Further Vb, avergef, Vb, peakf are labeled average rate and peak rate of traffic flow type B.

然后判断是否有直连单跳HQ光路满足有效带宽要求,如果有则继续,否则转到调用集成路由算法计算单跳HQ光路,继续。 And then determine whether there is direct single-hop optical path HQ effectively meet bandwidth requirements, if it continues, call or go to the integrated routing algorithm to calculate the single-hop HQ optical path, continue.

(c)对于业务类型B(带宽小于设定Sb,th),首先基于速率封装(REM)计算有效带宽,然后判断是否有直连单跳LQ光路满足有效带宽要求,如果没有,则继续判断是否有多跳HQ光路满足有效带宽要求,如果仍旧没有,则转到调用集成路由算法计算单跳HQ光路,继续。 (C) for the service type B (bandwidth of less than a set Sb, th), first rate-based package (REM) calculated effective bandwidth, and then determine whether there is direct one-hop LQ optical paths meet effective bandwidth requirements, if no, then determine if the how effective jump HQ optical path to meet the bandwidth requirements, if still not, go call the routing algorithm to calculate the integrated single-hop HQ optical path, continue.

(d)对于业务类型C,业务类型C代表了大部分的非实时数据业务,例如文件传输、WWW以及后台存储数据业务等。 (D) C for the service type, service type C represent the majority of non-realtime data services, such as file transfer, and the WWW backend storage data services. 根据前面假设该类型业务一般只在多跳的LQ光路上传送,并不能主动创建光路。 This type of service is generally only in the multi-hop transmission LQ on the optical path of the foregoing assumptions, and can not take the initiative to create the optical path. 即判断该业务流是否有多跳LQ光路满足其最小带宽要求,则判断下式是否满足:ΣmEbf+n*Vc,min≤C-Vc,min]]>如果满足,则继续,否则拒绝该呼叫。 I.e., determines whether the traffic stream is multiple hops LQ optical path satisfy their minimum bandwidth requirements, is determined by the following formula is satisfied: & Sigma; mEbf + n * Vc, min & le; C-Vc, min]]> If yes, continue, or refuse the call. 其中,m,n分别标注当前选定的LQ光路的正在服务的类型B业务流数目和类型C业务流数目,Vc,min标注类型C业务流的最小速率保证带宽。 The number and type of traffic flow C traffic flow type wherein B, m, n are labeled LQ of the optical path is currently selected services, Vc, min Type C marked minimum rate guaranteed bandwidth traffic flow.

第七步:配置光层和电层的带宽资源;通过光扩展的资源预留协议(RSVP-TE)配置光层和电层的带宽资源,并更新网络资源数据库。 Step Seven: light-emitting layer and a dielectric layer disposed bandwidth resources; and a photosensitive layer disposed bandwidth resource layer by light Resource Reservation Protocol (RSVP-TE), and updates the network resource database.

Claims (1)

1.一种光因特网络的服务质量控制方法,其特征在于包括如下具体步骤:1)设置带宽控制门限参数:根据网络运营商网管人员输入,配置带宽控制门限参数,用于控制后续的业务分类和业务映射操作;2)网络资源数据库更新:系统启动控制平面进程,包括路由和链路管理子进程,通过光扩展的最短路径优先路由协议和链路管理协议维护和更新网络资源数据库;3)业务集成准入控制:根据业务流的服务质量需求,并根据当前网络资源使用状况,综合考虑光层的资源和电层的资源,判断是否允许业务接入;4)业务分类:业务分类包括电层业务服务等级分类和光层业务服务等级分类,电层业务服务等级分成三大类:需要硬QoS服务质量保证的服务等级业务为A类,需要软QoS保证的服务等级业务为B类,需要传统尽力而为服务等级业务为C类;光路服务等级的分类分 A method for controlling quality of service in an optical network Internet, comprising the following specific steps: 1) Set the bandwidth control threshold parameters: network provider network management personnel input configured threshold bandwidth control parameter for controlling the subsequent service service mapping and classification operations; 2) updates a database of network resources: the control plane system startup process, including routing and link management subprocess, maintain and update the database of network resources shortest path through the optical extension priority routing protocol and link management protocol; 3 ) business integration admission control: the quality of service requirements of traffic flow, and based on the current usage of network resources, and the resources considering resource layer of the optical layer, determining whether to allow service access; 4) traffic classification: traffic classifying comprises layer service level classification and a light layer service level classification, layer service level into three categories: the need for hard quality of service QoS guaranteed service class traffic class a, requires soft QoS guaranteed service level business classes B, need traditional best-effort service level business class C; classification level of the optical path of service points 为主要承载高优先级业务的高质量光路服务等级和主要承载低优先级业务的低质量光路服务等级两大类;5)业务映射:包括业务垂直映射方法和业务水平映射方法,业务垂直映射将不同类型业务映射到不同的服务接口,其QoS处理方法不同,在电层服务映射层面上,对于每种类型业务采取不同的QoS映射方法,每种业务可根据业务带宽粒度以及速率类型进行动态的业务映射,在光层服务映射层面上,对于硬QoS保证的A类业务直接映射到高质量光路服务等级,软QoS保证的B类业务可以映射到低质量光路服务等级或者高质量光路服务等级上,传统尽力而为服务等级的C类业务直接映射到低质量光路服务等级上,同时根据不同带宽粒度采取不同的映射方法,即大于带宽控制门限,映射到高优先级服务等级,否则映射到低优先级服务等级;业务水平映射包括单跳光 Low quality of the optical path of service level two types for high-quality optical path service level mainly carry high priority traffic and a main carrying low priority traffic; and 5) the service map: including business vertical mapping method and business level mapping method, business vertical mapping different types of services are mapped to different service interfaces, different QoS processing method which, in the power level layer service mapping, for each type of service to take different QoS mapping method, each service may be dynamically according to the traffic type bandwidth granularity and rate service mapping, on the light layer service mapping level for hard QoS guaranteed class a service is mapped directly into high-quality light path service level, soft guaranteed QoS class B service can be mapped to the low quality of the optical path of service level or quality light path service level traditional best effort service class class C traffic directly mapped to the low quality of the optical path of service level, while taking the different mapping methods based on different bandwidth granularity, i.e., greater than the bandwidth control threshold, mapped to the high priority service level, or mapped to the lower priority class of service; service level mapping one-hop light 映射、虚电路多跳映射、数据报映射方式,同时还采用混合映射方法,即根据业务服务等级和带宽粒度采取灵活的映射方法,对于低速率低优先级业务请求采用分组交换技术的虚电路方式,高速率高优先级业务连接请求采用单跳光路映射方式;6)带宽资源分配:对于需要硬QoS保证的A类业务,采用峰值带宽准入控制方法,即如果存在一个直通的高质量光路,满足则准入,否则,创建一条直通的高质量光路,如果创建失败,则拒绝该连接请求;对于需要软QoS保证的B类业务,采用基于速率封装复用技术的有效带宽准入控制方法,对于不同带宽粒度的这类业务流,设计一个带宽控制门限,对于有效带宽超过控制门限的业务流,将其映射到高质量光路上,否则映射到低质量的光路上,如果现有光路无法满足带宽需求,则触发创建新的光路,如果创建失败, Mapping, VC multihop mapping, mapping mode data packets, while also using hybrid mapping method, i.e. be flexible mapping method according to the bandwidth and service level granularity for low-speed low-priority traffic requests using virtual circuit packet switching , high-speed priority service connection request using a single-hop optical path mapping mode; 6) bandwidth resource allocation: the need for hard QoS guarantees a class of business, use of peak bandwidth admission control method, i.e., if there is a path through the optical quality, access is satisfied, otherwise, to create a high quality through the optical path, if the creation fails, then the connection request is rejected; soft QoS guarantees required for class B service, admission control method using an effective bandwidth multiplexing rate based on the package, for such traffic streams of different bandwidth granularity design a bandwidth control threshold, the effective bandwidth exceeds the control threshold traffic flows mapped to a high-quality optical path, or the mapping into the light path of low quality, if the conventional optical path can not be met bandwidth requirements, it triggers the creation of a new optical path, if creation fails, 拒绝该连接请求;对于尽力而为类的C类业务,采用最小带宽准入控制方法,只保证接入业务的最小带宽,满足其最小带宽要求则准入,否则直接拒绝该连接请求;7)配置光层和电层的带宽资源:通过光扩展的资源预留协议配置光层和电层的带宽资源,并更新网络资源数据库。 Refuse the connection request; C for best effort traffic class type, admission control method using the minimum bandwidth, minimum bandwidth is only guaranteed access services to meet their minimum bandwidth requirements are access, directly or rejects the connection request; 7) and a dielectric layer disposed the optical layer bandwidth resources: bandwidth resource configuration and a photosensitive layer by light spreading layer resource reservation protocol, and resources to update the network database.
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WO2006136113A1 (en) * 2005-06-24 2006-12-28 Huawei Technologies Co., Ltd. A method for ensuring quality of service for customer in wireless communication system
WO2007048294A1 (en) * 2005-10-24 2007-05-03 Huawei Technologies Co., Ltd. A method of ip network sources configuration and ip network
WO2007104235A1 (en) * 2006-03-13 2007-09-20 Huawei Technologies Co., Ltd. Method and commnunication network for implenmenting separating terminal service from network
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CN101662800B (en) * 2009-09-08 2012-06-13 北京邮电大学 Multi-service transmission resource allocation method supporting service containing soft service quality
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CN102546435A (en) * 2012-02-17 2012-07-04 中兴通讯股份有限公司 Spectrum resource assignment method and device
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CN101374020B (en) * 2007-08-20 2012-11-14 中兴通讯股份有限公司 Centralized bandwidth distribution method for relay network
CN101465790B (en) * 2007-12-17 2013-02-27 华为技术有限公司 Method, system and equipment for implementing resource admittance control
CN103716253A (en) * 2013-12-27 2014-04-09 广州华多网络科技有限公司 Method and device for requesting data
CN104320337A (en) * 2014-09-25 2015-01-28 河北工程大学 A method for distributing route and spectrum in flexible spectrum optical network
CN104380669A (en) * 2012-06-18 2015-02-25 西门子公司 Method for transmitting data packets in a communications network and communications network
CN105530142A (en) * 2015-12-11 2016-04-27 深圳市新岸通讯技术有限公司 Data transmission delay optimization algorithm for network management system of CWDM optical network
CN101543131B (en) * 2006-11-28 2016-07-06 高通股份有限公司 Dynamic inactivity timer threshold value is used to detect the end of service
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CN101159740B (en) 2005-03-08 2011-05-04 华为技术有限公司 Method and device for implementing proxy demand mode resource preservation in next generation network
CN100562013C (en) 2005-05-09 2009-11-18 中兴通讯股份有限公司 Method and system of on-line consultation of dynamic service level protocol
WO2006136113A1 (en) * 2005-06-24 2006-12-28 Huawei Technologies Co., Ltd. A method for ensuring quality of service for customer in wireless communication system
CN100450085C (en) 2005-08-24 2009-01-07 华为技术有限公司 Method for realizing differentiated service model QoS in Ethernet
US7983279B2 (en) 2005-10-24 2011-07-19 Huawei Technologies Co., Ltd. Method for configuring IP network resource and IP network
WO2007048294A1 (en) * 2005-10-24 2007-05-03 Huawei Technologies Co., Ltd. A method of ip network sources configuration and ip network
CN100531051C (en) 2006-03-13 2009-08-19 华为技术有限公司 Method for realizing separation of communication network and terminal service with network
WO2007104235A1 (en) * 2006-03-13 2007-09-20 Huawei Technologies Co., Ltd. Method and commnunication network for implenmenting separating terminal service from network
CN101102239B (en) 2006-07-04 2010-05-12 华为技术有限公司 Establishment method and device for channel allocation connection of Mesh network
CN100413263C (en) 2006-07-26 2008-08-20 华为技术有限公司 Method for end-to-end data business establishment
CN101175039B (en) 2006-10-25 2011-02-09 华为技术有限公司 Multi-stream service transmission method and its device and system
CN101543131B (en) * 2006-11-28 2016-07-06 高通股份有限公司 Dynamic inactivity timer threshold value is used to detect the end of service
WO2008095362A1 (en) * 2007-01-31 2008-08-14 Zte Corporation Service bandwidth configuring method and network management system
CN101252391B (en) * 2007-02-21 2012-10-10 日本电气株式会社 Transmission system and system startup method
CN101374020B (en) * 2007-08-20 2012-11-14 中兴通讯股份有限公司 Centralized bandwidth distribution method for relay network
CN101399756B (en) 2007-09-25 2011-06-01 华为技术有限公司 Method, system and device for service data transmission in P2P network
US10129590B2 (en) 2007-11-28 2018-11-13 Maxell, Ltd. Display apparatus and video processing apparatus
US10244284B2 (en) 2007-11-28 2019-03-26 Maxell, Ltd. Display apparatus and video processing apparatus
CN101465790B (en) * 2007-12-17 2013-02-27 华为技术有限公司 Method, system and equipment for implementing resource admittance control
CN101471923B (en) * 2007-12-27 2012-06-20 华为技术有限公司 Method, equipment and system for sending protocol message and identifying protocol message type
CN101360063B (en) 2008-09-10 2011-04-13 中国科学院计算技术研究所 Service stream transmission control method and system in IP network
CN101662800B (en) * 2009-09-08 2012-06-13 北京邮电大学 Multi-service transmission resource allocation method supporting service containing soft service quality
CN102546435A (en) * 2012-02-17 2012-07-04 中兴通讯股份有限公司 Spectrum resource assignment method and device
CN102546435B (en) * 2012-02-17 2016-01-20 中兴通讯股份有限公司 A kind of frequency spectrum resource allocation method and device
US9585053B2 (en) 2012-06-18 2017-02-28 Siemens Aktiengesellschaft Communication network and method for transmitting data packets in the communication network
CN104380669B (en) * 2012-06-18 2017-09-15 西门子公司 The method and communication network of transmission packet in communication network
CN104380669A (en) * 2012-06-18 2015-02-25 西门子公司 Method for transmitting data packets in a communications network and communications network
CN103716253A (en) * 2013-12-27 2014-04-09 广州华多网络科技有限公司 Method and device for requesting data
CN104320337A (en) * 2014-09-25 2015-01-28 河北工程大学 A method for distributing route and spectrum in flexible spectrum optical network
CN105530142A (en) * 2015-12-11 2016-04-27 深圳市新岸通讯技术有限公司 Data transmission delay optimization algorithm for network management system of CWDM optical network
CN105530142B (en) * 2015-12-11 2019-10-22 东莞小耳朵智能科技有限公司 It is a kind of for CWDM optical-fiber network network management system to the optimization method of data transfer delay

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