CN100571150C - Method of implementing controllable multicast service - Google Patents

Method of implementing controllable multicast service Download PDF

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CN100571150C
CN100571150C CN 200710153082 CN200710153082A CN100571150C CN 100571150 C CN100571150 C CN 100571150C CN 200710153082 CN200710153082 CN 200710153082 CN 200710153082 A CN200710153082 A CN 200710153082A CN 100571150 C CN100571150 C CN 100571150C
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user
multicast
control device
multicast service
request
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CN 200710153082
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CN101141276A (en )
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熊宇鹏
韩雨发
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华为技术有限公司
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Abstract

本发明公开了一种可控组播业务的实现方法,该方法为:用户向接入控制设备发出组播业务加入请求;接入控制设备将所述请求透传到组播网络侧;以及接入控制设备对该用户的组播权限进行判断,如果该用户有接收组播节目的权限,则接入控制设备将组播网络发送来的组播数据流转发给该用户,否则不向该用户转发数据。 The present invention discloses a method for implementing a controlled multicast service, the method is: user sends a multicast service join request to the access control apparatus; controlling the access request is transparently transmitted to the device-side multicast network; and then the control device determines the user's multicast authority, if the user has permission to receive a multicast program, the multicast network access control device transmitted to the multicast data stream to the user, to the user or not forwarding data.

Description

可控组播业务的实现方法 Achieve controllable multicast service

技术领域 FIELD

本发明涉及组播网络技术,特别涉及一种可控组播业务的实现方法。 The present invention relates to a multicast network technology, particularly to a method for implementing a controlled multicast service. 背景技术 Background technique

在Internet上,多媒体业务诸如:流媒体,视频会议和视频点播等,正在成为信息传送的重要组成部分。 On the Internet, multimedia services, such as: streaming media, video conferencing and video-on-demand, is becoming an important component of information transmitted. 点对点传输的单播方式不能适应这一类业务传输特性,即单点发送多点接收,因为服务器必须为每一个接收者提供一个相同内容的IP报文拷贝,同时网络上也重复地传输相同内容的报文,占用了大量资源。 Point to point transmission of unicast traffic transmission characteristics can not accommodate this type, i.e. a single point to multipoint reception, because the same content server must provide a copy of the IP packet to each recipient, and also the same content is repeatedly transmitted over the network message, taking up a lot of resources. 虽然IP广播允许一个主机把一个IP报文发送给同一个网络的所有主机,但是由于不是所有的主机都需要这些报文,因而浪费了网络资源。 Although IP broadcast allows a host to send an IP packet to all hosts on the same network, but because not all hosts need these packets, thus wasting network resources. 在这种情况下组播业务应运而生,它的出现提供了一个主机向特定的多个接收者发送消息的方法。 In this case, multicast services have emerged, it appears a host is provided a method of sending a message to a plurality of specific recipients.

目前网络上使用组播路由器配合交换机一起实现组播业务。 Currently the network using multicast router switch with multicast traffic together. 网络模型如图1 所示,一组播路由器上支持的协议主要是PIM - SD协议。 Network model shown in Figure 1, a multicast router to support the protocol is mainly PIM - SD protocol. 网络交换机上支持的协议主要是组播控制协议(IGMP)。 Supported network protocols main switch is multicast control protocol (IGMP). 如图2,用户《吏用组播节目时处理过程如下: 2, the user "Official multicast processing programs as follows:

(1 )、用户发送组播业务加入请求到网络交换机; (1), the user sends a multicast service joining request to the network switch;

•( 2 )、网络交换机将这个请求透传到组播网络侧; • (2), the network switch request is transparently transmitted to the multicast network;

(3 )、组播网络将组播数据流发送到交换机; (3), the multicast network transmitted multicast data stream to the switch;

(4)、网络交换机将组播数据流发送给用户。 (4), the network switch multicast data stream to the user.

通过上述流程,用户就可以接收到组播节目数据流。 Through the above process, the user can receive the multicast program stream. 用户停止使用组播节目时过程如下: When the user stops using multicast program as follows:

(1)、用户发送組播业务离开请求; (1), the user sends a request to leave a multicast service;

(2 )、网络交换机停止发送组播数据给这个用户,同时将这个请求透传到组牆网逸一侧。 (2), the network switch stops sending multicast data to the user, while the request is transparently transmitted to the network group Yi side wall.

(3)、如果网络交换机的用户侧已经没有其他用户使用这个组播业务,则组播网络就不再发送组播数据到交换机。 (3) if the user switches the network side has no other users in the multicast service, the multicast network is no longer sending multicast data to the switch.

虽然现有技术实现了组播业务,但由于上述两个协议中没有对用户的管理功能,导致所有可以上网的用户,都可以使用组播业务,不便于运营商进行管理和收取费用。 While the prior art to achieve a multicast service, but because of the two protocols to the user does not have administrative functions, causing all users can access the Internet, you can use the multicast service, the operator is not easy to manage and charge fees.

发明内容 SUMMARY

本发明的目的在于提供一种可控组播业务的实现方法,以便于服务提供商对接入用户进行管理。 Object of the present invention to provide a method for implementing a controlled multicast service, to manage user access to the service provider.

本发明的技术方案一: One aspect of the present invention:

一种可控组播业务的实现方法,在接入控制设备的本地数据库中对用户的组播权限进行配置,其中,用户的组播权限配置是按照用户位置配置,所述用户位置是:为用户分配的唯一的设备端口或为用户分配的唯一的用户虛拟局域网标识VLANID,该方法进一步包括下述步骤: Method for implementing a controlled multicast service, the local database in the access control device to the multicast authority of the user configuration, wherein the multicast user according to the user authorization profile is disposed at a position, the user position is: the only device port assigned to a user or a user of the user is assigned a unique VLAN ID VLANID, the method further comprising the steps of:

接入控制设备收到用户发出的组播业务加入请求; Access control device receives a multicast service request sent by the user is added;

接入控制设备将所述请求透传到組播网络侧;以及 Access control device, the request is transparently transmitted to the multicast network side; and

接入控制设备根据收到的组播业务加入请求得到组播地址和用户位置,从本地数据库中查看该用户的权限,如果该用户有接收組播业务的权限,则接入控制设备将组播网络发送来的组播数据流转发给该用户,否则不向该用户转发数据。 The access control device to give the user and a multicast address according to the received location request to join a multicast service, view the user's permission from the local database, if the user has permission to receive the multicast service, the multicast access control apparatus network to send multicast data stream sent to the user, or do not forward the data to the user.

本发明的技术方案二: Second aspect of the present invention:

一种可控组播业务的实现方法,在接入控制设备的本地数据库中对用户的组播权限进行配置,其中,用户的组播权限配置是按照用户位置配置,所述用户位置是:为用户分配的唯一的设备端口或为用户分配的唯一的用户虛拟局域网标识VLANID,该方法进一步包括步骤: Method for implementing a controlled multicast service, the local database in the access control device to the multicast authority of the user configuration, wherein the multicast user according to the user authorization profile is disposed at a position, the user position is: the only device port assigned to a user or a user of the user is assigned a unique VLAN ID VLANID, the method further comprising the step of:

(1 )、接入控制设备收到用户发出的组播业务加入请求; (2 )、接入控制设备根据收到的组播业务加入请求得到组播地址和用户位置,从本地数据库中查看该用户的权限;如果该用户有接收组播业务的权限,则将用户的组播业务加入请求传送到网络侧并继续步骤(3),否则丟弃用户的组播业务加入请求,结束对该次请求的处理; (1), the access control device receives a multicast service request sent by the user is added; (2), the access control device to give the user and a multicast address according to the received location request to join a multicast service, view from the local database user privileges; if the user has permission to receive a multicast service, the user will join a multicast service request to the network and continue with step (3), otherwise, discard the multicast service joining request user, the secondary end processing the request;

(3 )、接入控制设备将组播网络发送来的组播数据流转发给所述用户。 (3), the access control device to a multicast network transmitted the multicast data stream to the user. 本发明的技术方案三: Three aspect of the present invention:

一种可控組播业务的实现方法,在接入控制设备的本地数据库中对用户的组播权限进行配置,其中,用户的组播权限配置是按照用户位置配置,所述用户位置是:为用户分配的唯一的设备端口或为用户分配的唯一的用户虚拟局域网标识VLANID,该方法进一步包括步骤: Method for implementing a controlled multicast service, the local database in the access control device to the multicast authority of the user configuration, wherein the multicast user according to the user authorization profile is disposed at a position, the user position is: the only device port assigned to a user or a user of the user is assigned a unique VLAN ID VLANID, the method further comprising the step of:

a、 接入控制设备收到用户发出的组播业务加入请求; a, the access control device receives a multicast service request sent by the user is added;

b、 接入控制设备才艮据收到的组播业务加入请求得到组播地址和用户位置, 从本地数据库中查看该用户的权限;如果该用户有接收组播业务的权限则继续步骤c,否则丟弃用户的请求报文,结束对该次请求的处理; B, only the access control device according to the received Gen multicast service join request and the multicast address of the user's location, the user's authority to view from the local database; if the user has permission to receive a multicast service then continues with step C, otherwise, discard the user's request message, the second request process ends;

c、 接入控制设备进一步判断是否已经向组播网络发送过相同的组播业务请求,如果是则进行步骤d,否则向组播网络侧发送用户的组播加入请求,进行步骤d; C, the control device further determines whether the access has been transmitted through the same multicast service request to the multicast network, if yes, step d, otherwise, sending the user's multicast join request to the multicast network, step D;

d、 接入控制设备将组播网络发送来的組播数据流发送给有权限的用户。 d, the access control device will send a multicast stream to the multicast data transmission network to authorized users. 其中: among them:

所述控制设备为网络交换机或数字用户线接入复用器。 The control apparatus for the access multiplexer or a digital subscriber line network switch. 采用本发明的方法,运行商可通过对用户的权限控制来实现"精细化、特性化"运营,为不同的用户群提供不同的服务,从而提高运营收益。 The method of the present invention, operators can be achieved, "fine, characteristic" of access control operations by the user, provides different services for different groups of users, thereby improving the operating income.

附图说明 BRIEF DESCRIPTION

图1为现有技术中实现组播业务的网络模型图; 图2为现有技术实现组播业务原理示意图; 图3为本发明实现可控组播业务原理示意图; 圉4为本发明实现可控组播业务方案一的流程图; 图5为本发明实现可控组播业务方案二的流程图; FIG 1 is a view of a prior art network model multicast service; FIG. 2 is a schematic diagram of the prior art principle multicast service; FIG. 3 is a schematic diagram of a controllable multicast services implemented principles of the invention; the present invention achieve yuzhen 4 a control flowchart of the multicast service scheme; FIG. 5 is a flowchart of the present invention achieves two controllable multicast service scheme;

6图6为本发明的网络交换机可控制组播的示意图; FIG 6 network switch 6 is a schematic view of the present invention can be controlled multicast;

图7为本发明的网络交换机对用户请求报文的处理示意图; Network switch of FIG. 7 of the present invention to process the user request packets schematic;

图8为本发明实现可控组播业务方案三的流程图。 FIG 8 is a flowchart of three controllable multicast service program to achieve the present invention.

具体实施方式 detailed description

.本发明的可控组播就是在网络交换机或者数字用户线接入复用器(DSLAM)等功能类似的控制设备上,利用相关协议实现用户接入的控制。 The controllable multicast present invention is an access multiplexer (DSLAM) in the network switch or a digital subscriber line equipment and similar control functions, implemented using a user access control protocol related. 如利用组播控制协议(筒称IGMP) 、 802.1X协议等。 The use of a multicast control protocol (called cylindrical IGMP), 802.1X protocol. 本实施例以组播控制协议为 In this embodiment, the multicast control protocol

例对本发明进行说明。 Embodiment of the present invention will be described. 本发明的组网图参阅图l所示。 Networking view of the invention Referring to FIG l.

为了解决用户管理的问题,在控制设备上建立本地数据库,在该数据库中对用户的权限进行配置,在收到用户加入请求报文的时候,从数据库中查询用户的权限并根据用户的权限控制报文转发,参阅图3。 In order to solve the problem of user management, establish a local database on the control device, configure the user's permissions in the database, when it receives a user request to join message, the user query from the database based on user permissions and access control message forwarding, see Figure 3.

在组播业务中,节目是唯一的,与组播IP地址——对应,用户的组播权限配置是按照用户的物理位置或者逻辑位置配置。 In the multicast service, the program is unique, the IP address of the multicast - corresponding to the configuration, the user's multicast authority is configured as logical or physical location of the user's position.

以物理位置进行权限配置,每一个用户分配一个唯一的设备端口,参阅表一所示。 Physical location arranged for permission, each user is assigned a unique device port, refer to Table 1 below.

■ 以逻辑位置进行权限配置,每一个用户分配一个唯一的用户VLAN ID,如表二所示。 ■ logical location for permission configuration, each user is assigned a unique user VLAN ID, such as shown in Table II.

节目名称 节目地址 用户位置 用户姓名 用户位置 用户姓名 用户位置 用户姓名 Program name program address of the user location of the user name user name user location of the user location of the user's name

端口O 张三 端口l 李四 端口12 王五 Port O port l Joe Smith John Doe king five port 12

CCTV國5 224.1.10.1 有 有 有 HBO 224.1.10.2 有 没有 有 凤凰卫视 224.1.10.3 有 有 没有 7表二 CCTV States 5 224.1.10.1 HBO 224.1.10.2 Yes Yes Yes Yes No Yes Yes Yes Phoenix 224.1.10.3 no 7 Table II

<table>table see original document page 8</column></row> <table> 参阅4,以网络交换机实现組播控制协议侦听(IPGMsnooping)协议为例,可控组播的流程如下: <Table> table see original document page 8 </ column> </ row> <table> 4 refer to the switch network control protocol multicast listener (IPGMsnooping) protocol as an example, multicast control process is as follows:

(1) 用户发送組播业务加入请求到网络交换机; (1) The user sends a multicast service joining request to the network switch;

(2) 网络交换机将这个请求透传到组播网络侧,同时根据接收到的用户控制报文从本地的权限数据库中查看用户的权限; (2) The network switch request is transparently transmitted to the multicast network, while the user's rights to view the message from a local authority database according to the received user control;

(3 )如果用户有接收组播节目的权限,则网络交换机将组播网络发送来的组播数据流转发给用户,否则不将组播数据流发送给发送请求的用户。 (3) if the user has permission to receive a multicast program, the network switches to the multicast network transmitted multicast data stream to the user, or it does not send multicast data stream sent to the user's request.

参阅5,为了进一步优化业务控制过程,对于图4中的步骤(2),也可根据对用户使用权限的分析结果决定是否向网络侧发送用户的组播业务加入请求。 See 5, in order to further optimize the service control procedure for step (2) in FIG. 4, the user can decide whether to send multicast service join request to a network side according to the analysis result of the user's use authority. 其过程如下: The procedure is as follows:

(1 )、用户向接入控制设备发出组播业务加入请求; (1), user access control device to the multicast service joining request issued;

(2)、接入控制设备判断该用户的组播权限;如果该用户有接收组播节目妁权限,则将用户的组播业务加入请求传送到网络侧并继续步骤(3),否则丢弃用户的请求l艮文,结束对该次请求的处理; (2), a multicast access control apparatus determines privilege of the user; if the user has permission to receive the multicast program matchmaker, then the user's multicast service continues with step (3) to the network side and the join request, the user will be dropped l Gen request message, the processing end time of the request;

(3 )、接入控制设备将组播网络发送来的组播数据流转发给发送请求的用户。 (3), the access control device to a multicast network transmitted multicast data stream to the transmission request of the user.

参阅图6,网络交换机可控组播模块部分包括:用户侧控制报文接收模块、 鞋制报文分析模块、IGMP报文处理模块和组播数据报文发送控制模块。 Referring to Figure 6, the network switch module multicast control portion comprises: a user-side control message reception module, message analysis module manufactured shoes, the IGMP message processing module, and multicast packet transmission control module. IGMP IGMP

报文处理模块主要负责用户的组播权限分析。 Packet processing module is mainly responsible for the user's multicast authority analysis. 参阅图7,对报文的处理过程如下:用户侧控制报文接收模块监测并接收用户发出的所有控制报文,然后将这'些报文发送到控制报文分析模块。 Referring to Figure 7, the processing of packets in the following: the user-side control message receiving module receives a user to monitor and control all the messages sent and these 'transmits these packets to the analysis module control packets.

用户报文分析模块根据控制报文中协议域的内容对控制报文进行分类,然 User packet analysis module control packets are classified according to content of the control packet protocol field, then

后将各种报文发送到响应的模块进行处理。 After the various response messages sent to the module for processing. 如果是IGMP控制报文,则发送到IGMP报文处理模块;否则进行其他报文处理。 If IGMP control message is sent to the IGMP message processing module; Otherwise, other message processing.

'• IGMP报文处理模块从用户的请求报文中得到组播地址和用户的位置,根据组播地址和用户的位置从本地数据库中查询用户的组播权限,以判断该用户是否有权限观看组播节目;如果没有权限,则不进行任何操作;如果有权限,则发送控制消息到组播数据报文发送控制模块。 '• IGMP message processing module obtained multicast address and position of the user from the user's request packet, a multicast query from a user's local authority database according to the multicast address and the user's location, to determine whether the user is authorized to watch multicast program; if there is no authority, nothing is done; If you have permission, sends a control message to the multicast packet transmission control module.

'组播数据报文发送控制模从控制消息的指令中得到用户的位置信息,然后按照指令,激活该用户的組播报文发送功能。 'Multicast packet transmission control mode to obtain location information of the user from the instruction of the control message, and then follow the instructions to activate the user sending multicast packets. 当网络交换机接收到组播数据时便发送给用户。 When the network switch receives a multicast data will be sent to the user.

参阅图8所示,以网络交换机实现組播控制协议代理(IGMP Proxy)协议为例,可控组播的流程如下: Referring to FIG. 8, the network switch to multicast control protocol agent (IGMP Proxy) protocol as an example, multicast control process is as follows:

(1) 用户发送组播业务加入请求到网络交换机。 (1) The user sends a multicast service joining request to the network switch.

(2) 网络交换机先查询本地的数据库,判断用户有没有组播业务的使用权限。 (2) network switches to query the local database to determine the user does not have permission to use the multicast service. 如果有权限则进行步骤(3),如果没有使用权限,则将用户的请求报文丟弃,并结束该次-清求处理过程。 If permission is performed in step (3), if no permission, the user then requests packets are discarded, and the end times - clear request process.

(3) 、进一步判断网络交换机是不是已经向组播网络发送过相同的组播节目请求;如果已经发送过相同的请求,说明组播节目已经存在,就不再向组播网络发送组播请求;如果以前没有发送过,则向组播网络发送组播加入请求。 (3), the network switch is further determined not already sent a request to the same multicast program multicast network; if the request has been sent over the same, already described multicast program, the multicast network is not transmitting the multicast request again ; If not previously sent too, it sends a multicast join request to a multicast network. 组播网络收到请求之后,将组播节目发送到网络交换机。 Multicast network after receiving the request, transmitting the multicast program to the network switch.

(4) 、网络交换机将组播数据发送到有使用权限的用户。 (4), the network switch sends multicast data to the user has permission to use. 其中,用户请求报文的处理过程参阅图6和图7。 Wherein the user processing request packet of FIG. 6 and FIG. 7. 本发明中用户停止使用组播节目时过程与现有技术相同。 The same as the prior art process of the present invention, when the user stops using multicast program.

9 9

Claims (6)

  1. 1、一种可控组播业务的实现方法,其特征在于,在接入控制设备的本地数据库中对用户的组播权限进行配置,其中,用户的组播权限配置是按照用户位置配置,所述用户位置是:为用户分配的唯一的设备端口或为用户分配的唯一的用户虚拟局域网标识VLAN ID,所述方法进一步包括步骤: 接入控制设备收到用户发出的组播业务加入请求; 接入控制设备将所述请求透传到组播网络侧;以及接入控制设备根据收到的组播业务加入请求得到组播地址和用户位置,从本地数据库中查看该用户的权限,如果该用户有接收组播业务的权限,则接入控制设备将组播网络发送来的组播数据流转发给该用户,否则不向该用户转发数据。 A method for implementing a controlled multicast service, wherein the multicast authority of the user to configure the local database in the access control device, wherein the multicast user according to the user authorization profile is disposed at a position, the said user position is: a unique device port assigned to users or user is assigned a unique user identifier of the virtual local area network VLAN ID, the method further comprising the step of: controlling the access device receives a multicast service request sent by the user is added; then the control device, the request is transparently transmitted to the multicast network; and an access control device to give the user and a multicast address according to the received location request to join a multicast service, view the user's permission from the local database, if the user there receive a multicast service authority, the access control device to a multicast network transmitted multicast data stream to the user, or does not forward data to the user.
  2. 2、 如权利要求l所述的方法,其特征在于,所述接入控制设备为网络交换机或数字用户线接入复用器。 2. The method of claim l, wherein said access control device is a network switch access multiplexer or a digital subscriber line.
  3. 3、 一种可控组播业务的实现方法,其特征在于,在接入控制设备的本地数据库中对用户的组播权限进行配置,其中,用户的组播权限配置是按照用户位置配置,所述用户位置是:为用户分配的唯一的设备端口或为用户分配的唯一的用户虛拟局域网标识VLANID,所述方法进一步包括步骤:(1 )、接入控制设备接收用户发出的组播业务加入请求;(2 )、接入控制设备根据收到的组播业务加入请求得到组播地址和用户位置,从本地数据库中查看该用户的权限;如果该用户有接收組播业务的权限,则将用户的组播业务加入请求传送到网络侧并继续步骤(3),否则丟弃用户的组播业务加入请求,结束对该次请求的处理;(3 )、接入控制设备将组播网络发送来的组播数据流转发给所述用户。 3, a method for implementing a controlled multicast service, wherein the multicast authority of the user to configure the local database in the access control device, wherein the multicast user according to the user authorization profile is disposed position, the said user position is: a unique device port assigned to users or user is assigned a unique user identifier of the VLANID virtual local area network, said method further comprising the steps of: (1), the access control device receiving the multicast service request sent by the user is added ; (2), the access control device to give the user and a multicast address according to the received location request to join a multicast service, view the user's permission from the local database; if the user has permission to receive a multicast service, the user is multicast service joining request to the network and continue with step (3), otherwise, discard the multicast service joining request user, the end processing of the request times; (3), the access control device to a multicast network transmitted the multicast data stream to the user.
  4. 4、 如权利要求3所述的方法,其特征在于,所述接入控制设备为网络交换机或数字用户线接入复用器。 4. The method as claimed in claim 3, wherein said access control device is a network switch access multiplexer or a digital subscriber line.
  5. 5、 一种可控组播业务的实现方法,其特征在于,在接入控制设备的本地数据库中对用户的组播权限进行配置,其中,用户的组播权限配置是按照用户位置配置,所述用户位置是:为用户分配的唯一的设备端口或为用户分配的唯一的用户虚拟局域网标识VLAN ID,所述方法进一步包括步骤:a、 接入控制设备接收用户发出的组播业务加入请求;b、 接入控制设备才艮据收到的组播业务加入请求得到组播地址和用户位置,从本地数据库中查看该用户的权限;如果该用户有接收组播业务的权限则继续步骤c,否则丢弃用户的组播业务加入请求,结束对该次请求的处理;c、 接入控制设备进一步判断是否已经向组播网络发送过相同的组播业务请求,如果是则进行步骤d,否则向组播网络侧发送用户的组播业务加入请求,进行步骤d;d、 接入控制设备将组播网络发送来 5, a method for implementing a controlled multicast service, wherein the multicast authority of the user to configure the local database in the access control device, wherein the multicast user according to the user authorization profile is disposed at a position, the said user position is: a unique device port assigned to users or user is assigned a unique user identifier of the virtual local area network VLAN ID, the method further comprising the steps of: a, an access control device receiving the multicast service request sent by the user is added; B, only the access control device according to the received Gen multicast service join request and the multicast address of the user's location, the user's authority to view from the local database; if the user has permission to receive a multicast service then continues with step C, otherwise, discard the multicast service joining request user, the secondary processing request is completed; C, the control device further determines whether the access has been transmitted through the same multicast service request to the multicast network, if yes, step d, otherwise the user multicast network side sending multicast service joining request, step d; d, the access control device to a multicast network transmitted 组播^:据流发送给有权限的用户。 Multicast ^: It is sent to the user flow privileged.
  6. 6、如权利要求5所述的方法,其特征在于,所述接入控制设备为网络交换机或数字用户线接入复用器。 6. The method as claimed in claim 5, wherein said access control device is a network switch access multiplexer or a digital subscriber line.
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