WO2004028082A1 - Procede de gestion de reseau fonde sur la qualite de service - Google Patents

Procede de gestion de reseau fonde sur la qualite de service Download PDF

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Publication number
WO2004028082A1
WO2004028082A1 PCT/CN2003/000672 CN0300672W WO2004028082A1 WO 2004028082 A1 WO2004028082 A1 WO 2004028082A1 CN 0300672 W CN0300672 W CN 0300672W WO 2004028082 A1 WO2004028082 A1 WO 2004028082A1
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WIPO (PCT)
Prior art keywords
user
service
quality
qos policy
policy
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PCT/CN2003/000672
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English (en)
French (fr)
Inventor
Erping Kou
Nian Wang
Qiao Li
Bo Xu
Anyuan Xiong
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Huawei Technologies Co., Ltd
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Publication date
Application filed by Huawei Technologies Co., Ltd filed Critical Huawei Technologies Co., Ltd
Priority to AU2003255114A priority Critical patent/AU2003255114B2/en
Priority to BR0314671-5A priority patent/BR0314671A/pt
Priority to BRPI0314671-5A priority patent/BRPI0314671B1/pt
Publication of WO2004028082A1 publication Critical patent/WO2004028082A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5003Managing SLA; Interaction between SLA and QoS
    • H04L41/5006Creating or negotiating SLA contracts, guarantees or penalties
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08Configuration management of networks or network elements

Definitions

  • the present invention relates to a network management method, and in particular, to a network management method based on quality of service (QoS).
  • QoS quality of service
  • IDC Network Data Center
  • RFC2865 Remote Authentication Dial-In User Service remote dial-in user authentication service
  • RFC2866 Remote Authentication Dial-In User Service remote dial-in user authentication service
  • IP networks In traditional IP networks, all packets are treated equally without distinction. Each router uses a first-in-first-out (FIFO) policy for all packets. It does its best to (bs t- effort) to report all packets. The text is delivered to the destination, but it does not provide any guarantee for the reliability of the message transmission, the performance of the transmission delay, and so on.
  • VoIP Voice over IP
  • VoIP Voice over IP
  • VPN virtual private network
  • new quality of service for IP networks has also been proposed Claim.
  • the best-effort services of traditional IP networks can no longer meet the needs of applications. Such as VoIP business, If the message transmission delay is too long, it will be unacceptable to the user.
  • service level agreements service level agreements
  • SLA service level agreement
  • a special platform called a policy server (PS) is also needed. It applies for and issues QoS policies with devices at the network backbone layer and convergence layer through a special protocol—a public open policy service protocol (Cobandon Open Policy Service, COPS, RFC2748).
  • COPS Cobandon Open Policy Service
  • the purpose of the present invention is to provide a method of network management based on quality of service, which can organically combine network service quality management with user management and business management, and improve the quality and efficiency of network service quality.
  • the method for network management based on quality of service includes the following steps:
  • Step 1 The authentication and accounting server (radius server) customizes the corresponding quality of service (QoS) policy for the specific network application;
  • Step 2 The user applies to the network data center (IDC) for the quality of service and permissions to be obtained, and provides service selection information.
  • the I DC stores the above information and sends the information to the radius server;
  • Step 3 The radius server authenticates the user and determines the QoS policy provided for the user based on the user's attributes and the type of service requested.
  • the specific QoS policy is delivered to the convergence layer.
  • configure the corresponding QoS policy for the convergence layer device and at the same time configure the convergence layer device with the access layer device for the QoS policy formulated for the access layer device;
  • Step 4 According to the user's service, the radius server combines the access layer, convergence layer, and backbone layer equipment with a pre-built QoS policy to serve the user.
  • the service quality and authority obtained by the user from step 2 in the network data center (IDC) are obtained through a portal page provided to the user by the IDC.
  • the step 3 further includes the following steps:
  • Step 31 The radius server selects a message based on the user service, and Service pre-made QoS policy, determine the QoS policy provided for the user, and send the policy and the corresponding device port information to the convergence layer device. At the same time, the radius server also sets the user's charging policy based on the user's personal information and the applied service. ;
  • Step 32 After the convergence layer device receives the above policy and corresponding device port information, it sets a corresponding QoS processing method on the corresponding device port, and sends a QoS policy that sets the user's corresponding port and priority usage mark to the layer 2 device;
  • Step 33 The convergence layer device and the access layer device respectively send back a Q0S policy configuration success message to the upper layer device, and the backbone layer device directly performs queue scheduling according to the priority flag marked for the IP packet on the convergence layer device, and then all devices are successfully configured. After that, specific services are started to be executed, and at the same time, the radius server starts to charge users according to the established charging policies.
  • the step 31 further includes: if the user's service is a two-way service, sending the QoS policy provided for the user to the convergence layer device of the called party.
  • Setting the corresponding QoS processing method on the corresponding device port as described in step 32 includes formulating a flow classification rule to distinguish specific user traffic, and formulating a QoS policy for the traffic.
  • step 32 if the user terminal marks the priority of the QoS policy by itself, the corresponding user port is configured to trust the priority of the user traffic as a high priority.
  • the present invention uses the radius server of the existing network to customize the corresponding quality of service (QoS) policy for specific network applications, when authenticating a user, the QoS policy provided for the user is determined according to the user's attributes and the type of service requested And deliver specific QoS policies to the convergence layer and access layer devices, and finally according to the user ’s business, It integrates the access layer, convergence layer, and backbone layer equipment and uses pre-made QoS policies to serve users. By adopting the above solution, it can make full use of existing network equipment, simplify the policy configuration process, and combine business management and network management.
  • QoS quality of service
  • FIG. 1 is a flowchart of an embodiment of a method according to the present invention
  • FIG. 2 is a network structure diagram to which the method of the present invention is applied.
  • the essence of the present invention is to use the existing authentication and accounting server (radius server) and broadband access server (BAS) and other equipment on the network to make information related to QoS policies through a set of interactive processes to enable network service quality management and users.
  • authentication and accounting server radio server
  • BAS broadband access server
  • business management are combined organically, and the complicated control method of the policy server is omitted, which reduces the complexity of the network and solves the problems caused by the separation of business and control.
  • FIG. 2 is a network structure diagram to which the method of the present invention is applied.
  • the backbone layer is generally implemented using a Gigabit Switch Router (GSR). It requires a large-capacity, high-speed, high-efficiency, and powerful routing capability.
  • the access layer generally uses low-cost devices, such as Layer 2 switches and ADSL (asymmetric user loop) access devices. It requires management management.
  • the environment adaptability is strong; the convergence layer, as the boundary between the second and third layer of the metropolitan area network, should have intelligent features and user management capabilities, which is the key to achieving network management characteristics based on quality of service.
  • IDC Network Data Center
  • IDC Network Data Center
  • FIG. 1 is a flowchart of an embodiment of a method according to the present invention.
  • the invention is implemented according to FIG. 1.
  • the radius server is first expanded to serve as a service management platform, and a corresponding QoS policy is customized for a specific network application.
  • the user attributes and service types are distinguished.
  • the formulation of specific policies should refer to the user's traffic classification method, the bandwidth requested by the user, the bandwidth upper and lower limits, delay jitter, the priority of the user service, and traffic monitoring parameters , The length of the service that can be provided, whether it is a two-way service, and the corresponding charging policy; for the charging policy, different services usually have different charging policies, and the same service has different service levels and different service hours. There can also be different charging policies.
  • the broadband access server (BAS) at the convergence layer performs basic network access authentication on the user, assigns a network address to the user, and the user obtains basic access to the network; at the same time, through the standard radius protocol Record the basic information of the online user on the service management platform.
  • BAS broadband access server
  • any traffic of the user is processed according to the best effort principle (bas t effort).
  • IDDC network data center
  • the user selects the QoS service method to be obtained, such as the QoS level, and enters the corresponding user name and password to provide the service to be completed.
  • the B AS device will obtain the user's personal information, service selection information, and the user's belonging The device port is forwarded to IDC.
  • IDC stores the above information and sends the information to the radius server.
  • the radius server authenticates the user in step 3.
  • the QoS policy provided for the user is determined according to the user's attributes and the type of service requested.
  • the specific QoS policy is issued to the convergence layer.
  • the BAS configures the QoS policy of the corresponding service for the access layer device to the access layer device, such as configuring the priority of the relevant user access port. 3. Configure the priority of related user service flows.
  • the Radius server uses the pre-built QoS policies to serve users in combination with the access layer, convergence layer, and backbone layer devices according to the user's service.
  • IDC judges whether it is a legitimate user according to the user's subscription information. If yes, the user authentication information is sent to the radius server through the interface with the radius server. At the same time, the service type selected by the user and the device port to which the user belongs are also sent to the radius server. Second, IDC does not verify the validity of the user. Instead, all the information of the user is directly sent to the radius server, and the radius serever checks the contracted user information recorded to determine whether the user is legitimate.
  • the radius server uses the user service selection message obtained from IDC and combines the QoS policies pre-made for this type of service on the service management platform, such as the bandwidth and delay required by VoD services. , Priority parameter Etc.) Determine the user's QoS service policy, and send the policy and corresponding device port information to the BAS device together with the radius message that the user has passed. If it is a two-way service flow (such as a conference TV), the service management platform also needs to issue a similar policy to the BAS device of the called party. At the same time, the radius server also needs to set the user's billing policy according to the user's personal information and the application for the service.
  • the BAS at the aggregation layer can set the corresponding QoS processing methods on the corresponding device ports, such as: formulate flow classification rules to distinguish the traffic of specific users; formulate QoS policies (bandwidth restrictions, priority) for the traffic Changes in the level flag, how to handle default traffic, etc.).
  • the BAS at the aggregation layer delivers a QoS policy that sets the user ’s corresponding port and priority to use the marked QoS policy to the second layer, that is, the access layer device. For example, if the port traffic is set to a high priority, if the user terminal marks the priority of the QoS policy itself, You can also configure the corresponding user port to trust the priority of user traffic as high priority
  • the convergence layer devices that is, the BAS, and the access layer device respectively send back a Q0S policy configuration success message to the upper layer device.
  • the backbone layer device does not need to do any configuration for specific users, and directly according to the convergence layer Priority marks marked for IP packets on the device are used for queue scheduling, and then after all devices are successfully configured, specific services are started, and the radius server starts to charge users according to the established charging policy.
  • the radius server notifies the aggregation layer device to delete the QoS policy related to the user, and at the same time, the user's service flow is not affected. Then do QoS processing.
  • the aggregation layer notifies the user-accessed Layer 2 switch port to delete the related QoS policy. If the QoS policy is deleted successfully, the devices at all levels respectively send back a Q0S policy deletion success message to the upper device.
  • the service management platform performs charging operations according to the type of user, the type of service (bandwidth, priority) provided to the user, and the specific charging policy. If the BAS performs charging, the service management platform needs to notify the BAS to end the charging, in addition to sending a delete QoS policy message to the BAS.

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

Description

基于服务盾量的网络管理方法 技术领域
本发明涉及网络管理方法, 具体地说涉及到基于服务质量( QoS ) 的网络管理方法。
背景技术
在目前的宽带城域网中, 通常整个网絡由接入层设备、 汇聚层设 备、 骨干层设备、 网管平台组成。 在开展业务时, 还需要 IDC (网络 数据中心, 提供网络内容服务)来提供特定的业务功能, 为了管理上 网用户, 一般还存在一套用户管理平台(如 radius server : 认证和 计费服务器, 或其他类似的设备), 它和网络设备、 IDC 间通过专门 的认证计费协议 (radius协议: Remote Authent icat ion Dial-In User Service 远端拨入用户验证服务, RFC2865、 RFC2866) , 对使用网络 的用户进行统一管理和计费。
在传统的 IP网络中, 所有的报文都无区别的等同对待, 每个路 由器对所有的报文采用先入先出 (FIFO )的策略处理, 它尽最大的努 力 (bes t- effort )将报文送到目的地, 但对报文传送的可靠性、 传 送延迟等性能不提供任何保证。 随着 IP网络上新的应用不断出现, 如基于 IP的语音(VoIP, Voice over IP ), 会议电视、 虚拟私有网 络(VPN )、 关键数据业务等, 对 IP网络的服务质量也提出了新的要 求。传统的 IP网络的尽力服务已不能满足应用的需要。如 VoIP业务, 报文传送如果延时太长, 将是用户所不能接受的。 相对而言, 电子邮 件(emai l )和基于文件传输协议 ( FTP )的报文等普通上网服务对时 间延迟并不敏感。 QoS就是针对各种不同的需求, 提供不同的服务质 量的, 例如: 减少^ ¾文的丟失率、 避免和管理网络拥塞、 流量整形、 设置报文的优先级以及其它各种网络应用要求。
通常, 不同的用户类型对 QoS有不同的要求, 为了在用户要求和 网络对服务质量的具体实施上达成一致 , 用户和互联网服务供应商 ( ISP ) 对于服务质量间需要签定服务水平协议(service level agreement , SLA) , 包括为用户提供带宽的大小、 一定限度内的时延、 报文的优先级等内容。 在基于策略的网络中, 为了能够有效的控制不 同层次的网络设备,使之能按照和用户预定的 SLA设置 QoS相关参数, 还需要一种称为策略服务器(pol icy server , PS)的专用平台, 它和 网络骨干层、会聚层的设备间通过专门的协议一一公共开放策略服务 协议(Co匪 on Open Pol icy Service, COPS, RFC2748)进行 QoS策略 的申请和下发。
由于用户和业务管理、 网络服务质量的管理分布在不同的设备 上, 使得现有的网络服务质量技术和实际应用结合的不够紧密, 由于 设计思想的问题,业务控制和网络控制设备之间缺乏统一的相互交互 的手段, 造成整个网络服务质量和用户难以统一管理和控制, 影响宽 带网络的进一步发展。 而且策略服务器及其协议和处理流程复杂, 不 仅会增加网络的负担, 也无法管理到底层如二层交换机的设备, 因此 在某种程度上, 它仍然无法确保端到端的严格 QoS保证。 发明内容
本发明的目的在于提供一种基于服务质量的网络管理方法,使用 该方法能够将网絡服务质量管理和用户管理、 业务管理有机结合起 来, 提高网络的服务质'量和效率。
为达到上述目的, 本发明提供的基于服务质量的网络管理方法, 包括下述步骤:
步驟 1: 认证和计费服务器(radius server )针对具体的网絡 应用定制相应的服务质量(QoS ) 策略;
步骤 2: 用户向网络数据中心 (IDC ) 申请所要获得的服务质量 和权限, 并提供业务选择信息, I DC存储上述信息, 并将该信息发给 radius server;
步骤 3: radius server对用户进行认证, 同时根据用户的属性 和申请的业务类型确定为该用户提供的 QoS策略,在与会聚层设备交 互用户认证消息时, 将具体的 QoS策略下发到会聚层设备上,对会聚 层设备做相应的 QoS策略配置,同时会聚层设备向接入层设备配置针 对接入层设备制定的 QoS策略; ,
步骤 4: radius server根据用户的业务, 结合接入层、 会聚层、 骨干层设备, 利用预制的 QoS策略为用户服务。
步骤 2所述用户向网络数据中心 (IDC ) 申请获得的服务质量和 权限, 是通过 IDC提供给用户的门户 (portal ) 页面完成的。
所述步骤 3进一步包括下述步骤:
步骤 31: radius server根据用户业务选择消息, 结合针对该类 业务预制的 QoS策略, 确定为该用户提供的 QoS策略, 并将策略和相 应的设备端口信息发给会聚层设备, 同时 radius server还根据用户 的个人信息和申请的业务来设置用户的计费策略;
步骤 32: 会聚层设备收到上述策略和相应的设备端口信息后在 相应的设备端口上设置相应 QoS处理方式,并向二层设备下发设置用 户相应端口和优先级使用标记的 QoS策略;
步骤 33: 会聚层设备和接入层设备分别向上层设备回送 Q0S策 略配置成功消息, 骨干层设备直接根据会聚层设备上为 IP分组标记 的优先级标志来进行队列调度, 然后在所有设备配置成功后, 开始执 行具体的业务, 同时 radius server根据已制订的计费策略开始对用 户进行计费。
所述步驟 31还包括: 如果用户的业务为双向的业务, 将为该用 户提供的 QoS策略发给被叫方的会聚层设备。
步驟 32所述在相应的设备端口上设置相应 QoS处理方式, 包括 制订区分特定用户流量的流分类规则,以及制订针对该流量的 QoS策 略。
在步驟 32中, 如果用户终端自己标记 QoS策略的优先级, 配置 相应的用户端口信任用户流量的优先级为高优先级。
由于本发明利用现有网络的 radius server , 针对具体的网絡应 用定制相应的服务质量(QoS )策略, 在对用户进行认证时, 根据用 户的属性和申请的业务类型确定为该用户提供的 QoS策略,并将具体 的 QoS策略下发到会聚层、 接入层设备上, 最后根据用户的业务, 结 合接入层、 会聚层、 骨干层设备, 利用预制的 QoS策略为用户服务; 采用上述方案,即可以充分利用现有的网络设备,筒化策略配置流程, 还可以将业务管理和网络管理结合起来,具体实现时只需软件上的少 量改动, 而不需添置专门而昂贵的策略服务器, 即可完成网络的 QoS 策略配置和网络服务质量的紧密结合,并且可以管理到网络接入层的 设备,弥补了传统的策略服务器只能管理网络汇聚层和骨干层设备的 缺点, 提高网络设备的利用效率, 在一定程度上保护了运营商的建网 投资, 使运营商从网絡中能够寻找新的商机, 促进网络的良性发展; 可见, 本发明能够将网络服务质量管理和用户管理、 业务管理有机结 合起来, 提高网络的服务质量和效率。
附图说明
图 1是本发明所述方法的实施例流程图;
图 2是应用本发明所述方法的网络结构图。
具体实施方式
本发明的实质是利用网络已有的认证和计费服务器 (radius server )和宽带接入服务器( BAS )等设备, 将与 QoS策略有关的信 息, 通过一套交互流程使网络服务质量管理和用户、 业务管理有机的 结合起来, 而省略了策略服务器这种复杂的控制方式, 降低了网络的 复杂性, 并解决了业务和控制分离而导致的问题。
下面结合附图对本发明作进一步详细的描述。
图 2是应用本发明所述方法的网络结构图。 图 1中, 骨干层一般 采用吉比特交换路由器 (GSR, Gigabi ts swi tch router ) 实现, 网 状联结, 要求网络具有大容量、 高速高效和强大的路由能力等; 接入 层尽量一般采用低成本设备, 如二层交换机、 ADSL (非对称用户环路) 接入设备等;要求管理筒单、环境适应能力强;汇聚层作为城域网二、 三层网络的分界, 应具备智能特征和用户管理能力, 是实现基于服务 质量的网络管理特性的关键。 IDC (网络数据中心)为整个网络提供具 体的业务和服务, 如 e- mai l服务器、 视频点播服务器等。
图 1是本发明所述方法的实施例流程图。 按照图 1实施本发明, 先在步骤 1扩展 radius server , 使其作为业务管理平台, 在它上面 针对具体的网絡应用定制相应的 QoS策略, 在定制策略时, 区分用户 的属性和业务类型, 首先确定 QoS服务等级, 再根据 QoS等级确定对 应的 QoS策略, 具体策略的制定要参考用户的流分类方式、 用户所申 请的带宽、 带宽上下限、 时延抖动、 用户业务的优先级、 流量监管参 数、 可提供服务的时长、 是否双向业务等, 以及相应的计费策略等; 对于计费策略来说, 通常不同的业务有不同的计费策略、相同的业务 如果服务等级不同、 服务时间不同, 也可以有不同的计费策略。
在用户接入网络时, 汇聚层的宽带接入服务器 (BAS )会对用户 进行基本的网络接入认证, 为用户分配网络地址, 用户即获得访问网 络的基本权限; 同时, 通过标准的 radius协议在业务管理平台上记 录该上网用户的基本信息。同时通过在 BAS上配置缺省的访问控制规 则, 对用户的任何流量均按最大努力原则 (bas t effort )进行流量 处理。 如果用户需要获得服务提供商, 即网络数据中心( IDC )提供 的 QoS保证服务时, 在步骤 2向 IDC申请获得服务的权限, 这可以通 过 IDC提供给用户的门户 (portal )页面实现。 在该页面上, 用户选 择需要获得的 QoS服务方式, 如 QoS等级, 并输入相应的用户名、 密 码, 提供所要完成的业务, B AS设备将获得的用户个人信息、 业务选 择信息及用户所属的设备端口转发给 IDC。 IDC存储上述信息, 并将 该信息发给 radius server。 radius server在步骤 3对用户进行认 证, 同时根据用户的属性和申请的业务类型确定为该用户提供的 QoS 策略, 在与会聚层设备交互用户认证消息时, 将具体的 QoS策略下发 到会聚层的 BAS设备上,对会聚层的 BAS设备做相应的 QoS策略配置, 同时由 BAS向接入层设备配置针对接入层设备制定的相应业务的 QoS 策略, 如配置相关用户接入端口的优先级、 配置相关用户业务流的优 先级等; 最后在步骤 4 , Radius server根据用户的业务, 结合接入 层、 会聚层、 骨干层设备, 利用预制的 QoS策略为用户服务。
在上述过程中,还要判断申请 QoS的用户是否为合法用户, 有两 种方式: 一是 IDC根据用户的签约信息, 判断是否是合法用户。 如果 是,则通过与 radius server间接口,将用户认证通过信息发给 radius server , 同时将用户选择的业务类型和用户所属的设备端口也发给 radius server , 二是 IDC不对用户的合法性做验证, 而是直接将用 户的所有信息, 都发给 radius server , 由 radius serever对照记 录的签约用户信息, 来判断用户是否合法。
^口果用户通过了 IDC或 radius server的认证,则 radius server 根据从 IDC获取的用户业务选择消息,结合业务管理平台上针对该类 业务预制的 QoS策略, (如 VoD业务需要的带宽、 时延、 优先级参数 等)确定该用户的 QoS服务策略, 并将策略和相应的设备端口信息与 用户认证通过的 radius消息一并发给 BAS设备。 如果是双向的业务 流(如会议电视) ,业务管理平台还需向被叫方的 BAS设备下发类似策 略。 同时 radius server还需根据用户的个人信息和申请的业务来设 置用户的计费策略。
汇聚层的 BAS收到上述策略后,即可在相应的设备端口上设置相 应的 QoS处理方式, 如: 制订流分类规则以区分特定用户的流量; 制 订针对该流量的 QoS策略(带宽限制、 优先级标志更改方式, 违约流 量的处理方式等)。
汇聚层的 BAS向二层,即接入层设备下发设置用户相应端口和优 先级使用标记的 QoS策略, 如设置该端口的流量为高优先级, 如果用 户终端自己标记 QoS策略的优先级,也可配置相应的用户端口信任用 户流量的优先级为高优先级
如果 QoS策略的下发并设置成功, 会聚层的设备, 即 BAS, 和接 入层设备分別向上层设备回送 Q0S策略配置成功消息,骨干层设备不 用做任何针对具体用户的配置, 直接根据会聚层设备上为 IP分组标 记的优先级标志来进行队列调度, 然后在所有设备配置成功后, 开始 执行具体的业务, 同时 radius server根据已制订的计费策略开始对 用户进行计费。
当业务结束时, 如用户主动下线、 用户资费不够或服务自行停止
(如用户点播的电影放完)及服务时限已到等情况, radius server通 知汇聚层设备删除和该用户相关的 QoS策略,同时使用户的业务流不 再做 QoS处理。 并且, 汇聚层通知用户接入的二层交换机端口删除相 关的 QoS策略。 如果 QoS策略删除成功, 各级设备分别向上层设备回 送 Q0S策略删除成功消息。 业务管理平台根据用户类型、给用户提供 的服务类型(带宽、 优先级)和具体的计费策略进行计费操作。 如果 是由 BAS进行计费,业务管理平台在向 BAS下发删除 QoS策略消息外, 还需通知 BAS结束计费。

Claims

权 利 要 求
1、 一种基于服务质量的网络管理方法, 包括下述步骤: 步驟 1 : 认证和计费服务器(radius server )针对具体的网絡 应用定制相应的服务质量(QoS )策略;
步骤 2: 用户向网络数据中心 '(IDC ) 申请所要获得的服务质量 和权限, 并提供业务选择信息, IDC存储上述信息, 并将该信息发给 radius server;
步骤 3: radius server对用户进行认证, 同时根据用户的属性 和申请的业务类型确定为该用户提供的 QoS策略,在与会聚层设备交 互用户认证消息时, 将具体的 QoS策略下发到会聚层设备上,对会聚 层设备做相应的 QoS策略配置,同时会聚层设备向接入层设备配置针 对接入层设备制定的 QoS策略;
步驟 4: radius server根据用户的业务, 结合接入层、 会聚层、 骨干层设备, 利用预制的 QoS策略为用户服务。
1、 根据权利要求 1所述的基于服务质量的网络管理方法, 其特 征在于: 步骤 2所述用户向网络数据中心 (IDC ) 申请获得的服务质 量和权限, 是通过 IDC提供给用户的门户 (por ta l ) 页面完成的。
3、 根据权利要求 2所述的基于服务质量的网络管理方法, 其特 征在于所述步骤 3进一步包括下述步骤:
步骤 31 : radius server根据用户业务选择消息, 结合针对该类 业务预制的 QoS策略, 确定为该用户提供的 QoS策略, 并将策略和相 应的设备端口信息发给会聚层设备, 同时 radius server还根据用户 的个人信息和申请的业务来设置用户的计费策略;
步骤 32 : 会聚层设备收到上述策略和相应的设备端口信息后在 相应的设备端口上设置相应 QoS处理方式,并向二层设备下发设置用 户相应端口和优先级使用标记的 QoS策略;
步骤 33: 会聚层设备和接入层设备分别向上层设备回送 Q0S策 略配置成功消息, 骨干层设备直接根据会聚层设备上为 IP分组标记 的优先级标志来进行队列调度, 然后在所有设备配置成功后, 开始执 行具体的业务, 同时 radius server根据已制订的计费策略开始对用 户进行计费。
4、 根据权利要求 3所述的基于服务质量的网络管理方法, 其特 征在于所述步驟 31还包括: 如果用户的业务为双向的业务, 将为该 用户提供的 QoS策略发给被叫方的会聚层设备。
5、 根据权利要求 3所述的基于服务质量的网络管理方法, 其特 征在于步骤 32所述在相应的设备端口上设置相应 QoS处理方式, 包 括制订区分特定用户流量的流分类规则, 以及制订针对该流量的 QoS 策略。
6、 根据权利要求 3所述的基于服务质量的网络管理方法, 其特 征在于: 在步驟 32中, 如果用户终端自己标记 QoS策略的优先级, 配置相应的用户端口信任用户流量的优先级为高优先级。
7、 根据权利要求 30、 4、 5或 6所述的基于服务盾量的网络管理 方法, 其特征在所述方法还包括: 当业务结束时, 如用户主动下线、 用户资费不够、 服务自行停止或服务时限已到时, radius server通 知汇聚层设备删除和该用户相关的 QoS策略,使用户的业务流不再做 QoS处理。
8、 根据权利要求 7所述的基于服务质量的网络管理方法, 其特 征在所述方法还包括: 当业务结束时, 汇聚层设备通知接入层设备删 除与该业务有关的 QoS策略。
9、 根据权利要求 8所述的基于服务质量的网络管理方法, 其特 征在所述方法还包括: 如果是由 BAS进行计费, rad ius server在向 BAS下发删除 QoS策略消息时, 还通知 BAS结束计费。
1 0、根据权利要求 9所述的基于服务质量的网络管理方法, 其特 征在于: 所述会聚层设备为宽带接入服务器(BAS ), 所述接入层设备 为二层网络交换机。
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