WO2018108168A1 - Method for implementing multicast service of packet transmission network, device thereof and communication system - Google Patents

Method for implementing multicast service of packet transmission network, device thereof and communication system Download PDF

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WO2018108168A1
WO2018108168A1 PCT/CN2017/116631 CN2017116631W WO2018108168A1 WO 2018108168 A1 WO2018108168 A1 WO 2018108168A1 CN 2017116631 W CN2017116631 W CN 2017116631W WO 2018108168 A1 WO2018108168 A1 WO 2018108168A1
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transport network
multicast service
packet transport
channel
base station
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PCT/CN2017/116631
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French (fr)
Chinese (zh)
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刘华
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中兴通讯股份有限公司
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Priority to CN201611160764.2A priority Critical patent/CN108235259A/en
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Publication of WO2018108168A1 publication Critical patent/WO2018108168A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Abstract

A method for implementing a multicast service of a packet transmission network, a device thereof and a communication system. A packet transmission network device receives a multicast service transmitted by a gateway device by means of a point-to-multipoint (P2MP) channel, and the packet transmission network device pushes the multicast service to a downlink base station.

Description

分组传送网的组播业务实现方法及其装置、通信系统Multicast service realization method of packet transport network, device thereof, and communication system 技术领域Technical field
本发明实施例涉及但不限于数据传输网技术领域,尤其是一种分组传送网的组播业务实现方法及其装置。Embodiments of the present invention relate to, but are not limited to, the technical field of data transmission networks, and in particular, to a multicast service implementation method and apparatus for a packet transmission network.
背景技术Background technique
由于运营商对增强型多媒体广播多播业务(enhanced MultiMedia Broadcast Multicast Service,eMBMS)开始支持,对包交换网络的带宽利用率要求提高,而通信系统的实现方式是采用专用物理信道实现多媒体广播多播组播业务,具体是为各个用户设备与服务器之间设置供其各自使用的专用物理信道。也即是说,即使多个用户设备接收的是同一个业务的数据流,也需要通过各自的专用物理信号实现,而且服务器也需要对各个用户发送的请求获取数据流进行反馈。这种方式实现比较简单,适合于多组播业务用户较少的情况。As operators support the enhanced MultiMedia Broadcast Multicast Service (eMBMS), the bandwidth utilization requirements of the packet switched network are increased, and the communication system is implemented by using a dedicated physical channel to implement multimedia broadcast multicast. The multicast service is specifically configured to provide a dedicated physical channel between each user equipment and the server for their respective use. That is to say, even if a plurality of user equipments receive data streams of the same service, they need to be implemented by respective dedicated physical signals, and the server also needs to feed back the data flow requested by each user. This method is relatively simple to implement and is suitable for situations where there are fewer users of multiple multicast services.
发明内容Summary of the invention
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.
对于多组播业务用户较多的情况,在使用在背景技术中描述的方式实现时,为每个多组播业务用户设置对外的通讯链路,需要消耗的资源非常多,使得成本也比较高,并且服务器处理数据的量也非常大,给服务器带来的负荷较大,会消耗大量的码资源和功率资源。In the case where there are many users with multiple multicast services, when using the method described in the background art, setting an external communication link for each multi-multicast service user requires a lot of resources, which makes the cost relatively high. And the amount of data processed by the server is also very large, which brings a large load to the server and consumes a large amount of code resources and power resources.
本发明实施例提供的分组传送网的组播业务实现方法及其装置。A method and device for implementing a multicast service of a packet transport network provided by an embodiment of the present invention.
本发明实施例提供一种分组传送网的组播业务实现方法,包括:An embodiment of the present invention provides a method for implementing a multicast service in a packet transport network, including:
分组传送网设备通过点到多点P2MP通道接收网关设备发送的组播业务;The packet transport network device receives the multicast service sent by the gateway device through the point-to-multipoint P2MP channel;
所述分组传送网设备将组播业务推送至下挂基站。The packet transport network device pushes the multicast service to the downlink base station.
本发明实施例还提供一种分组传送网的组播业务实现装置,包括:接收 模块和交互模块;An embodiment of the present invention further provides a multicast service implementation apparatus for a packet transport network, including: receiving Module and interaction module;
接收模块设置成通过分组传送网设备接收网关设备通过点到多点P2MP通道发送组播组业务;The receiving module is configured to receive, by the packet transport network device, the gateway device to send the multicast group service through the point-to-multipoint P2MP channel;
交互模块设置成将所述分组传送网设备接收到的组播组业务推送至所述下挂基站。The interaction module is configured to push the multicast group service received by the packet transport network device to the downlink base station.
本发明实施例还提供一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机可执行指令,所述计算机可执行指令用于执行前述提供的分组传送网的组播业务实现方法。The embodiment of the present invention further provides a computer readable storage medium, where the computer readable storage medium stores computer executable instructions, and the computer executable instructions are used to execute the multicast service implementation method of the packet delivery network provided above. .
本发明实施例的有益效果是:The beneficial effects of the embodiments of the present invention are:
根据本发明实施例提供的分组传送网的组播业务实现方法、装置以及计算机存储介质,分组传送网设备通过点到多点P2MP通道接收网关设备发送的组播业务,该分组传送网设备通过预设的交互协议与下挂基站进行交互,将组播业务推送给下挂基站;通过对本发明实施例提供的方法的实施,网关设备将接收到的组播业务通过点对多点通道直接推送到预先设置好的分组传送网设备过程中,只需要进行一份业务数据的推送,大大减少了网关交互数据的工作量,同时也减少了网关设备与其他设备之间的链路设置,减少了不必要资源的消耗浪费,降低了成本,提高了网关数据的处理效率,然后再由分组传送网分别与下挂基站进行协议交互,实现了逐一的组播业务推送,保证了业务推动的准确性,也有效利用了系统资源,实现了组播业务推送的灵活控制。According to the multicast service implementation method and apparatus of the packet transport network and the computer storage medium, the packet transport network device receives the multicast service sent by the gateway device through the point-to-multipoint P2MP channel, and the packet transport network device passes the pre- The interaction protocol is configured to interact with the attached base station to push the multicast service to the downlink base station. The gateway device directly pushes the received multicast service through the point-to-multipoint channel by implementing the method provided by the embodiment of the present invention. In the process of pre-configured packet transport network equipment, only one service data push is needed, which greatly reduces the workload of the gateway interaction data, and also reduces the link setting between the gateway device and other devices, and reduces the The consumption of necessary resources is wasted, the cost is reduced, the processing efficiency of the gateway data is improved, and then the packet transmission network separately performs protocol interaction with the downlink base station, thereby implementing one-by-one multicast service push, thereby ensuring the accuracy of the service promotion. It also effectively utilizes system resources and realizes flexible control of multicast service push.
在阅读并理解了附图和详细描述后,可以明白其他方面。Other aspects will be apparent upon reading and understanding the drawings and detailed description.
附图概述BRIEF abstract
图1为本发明实施例一提供的分组传送网的组播业务实现方法的流程图;1 is a flowchart of a method for implementing a multicast service in a packet transport network according to Embodiment 1 of the present invention;
图2为本发明实施例一提供的L2VPN和L3VPN都支持P2MP的边缘设备的示意图;2 is a schematic diagram of an edge device that supports P2MP in both L2VPN and L3VPN according to Embodiment 1 of the present invention;
图3为本发明实施例一提供的只有L3VPN支持P2MP的边缘设备的示意图; FIG. 3 is a schematic diagram of an edge device supporting only P2MP by L3VPN according to Embodiment 1 of the present invention; FIG.
图4为本发明实施例二提供的分组传送网的组播业务实现装置的结构框图。4 is a structural block diagram of a device for implementing a multicast service in a packet transport network according to Embodiment 2 of the present invention.
本发明的实施方式Embodiments of the invention
下面通过具体实施方式结合附图对本发明实施例作进一步详细说明。The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.
实施例一:Embodiment 1:
本实施例提供的组播业务实现方法主要是基于支持P2MP(Point to Multiple Point,点对多点)通道的设备提出的,P2MP通道具有“任一组播组在网络内同一物理跨段只占用一份流量”的特性,多媒体广播多播组播业务网关(Multimedia Broadcast Multicast Services_GateWay,简称为MBMS_GW)通过P2MP通道把各个组播业务全部推送到与各个直连基站的分组传送网设备(Packet Transport Network,PTN)上,再以分组传送网设备作为查询器,与下挂基站通过互联网组管理协议(Internet Group Management Protocol,IGMP)交互来决定各个基站对应推送的组播流量。The multicast service implementation method provided in this embodiment is mainly based on a device that supports a P2MP (Point to Multiple Point) channel. The P2MP channel has "any multicast group only occupies the same physical span in the network. According to the characteristics of a traffic, the Multimedia Broadcast Multicast Services_GateWay (MBMS_GW) pushes all multicast services to the packet transport network equipment (Packet Transport Network) of each directly connected base station through the P2MP channel. On the PTN, the packet transport network device is used as a querier, and the downlink base station interacts with the Internet Group Management Protocol (IGMP) to determine the multicast traffic pushed by each base station.
请参见图1,图1为本实施例提供的分组传送网的组播业务实现方法的流程图,该实现方法包括步骤S101和步骤S102。Referring to FIG. 1, FIG. 1 is a flowchart of a method for implementing a multicast service of a packet transport network according to an embodiment of the present disclosure. The implementation method includes steps S101 and S102.
步骤S101,分组传送网设备接收网关设备通过点到多点P2MP通道发送的组播业务,所述分组传送网设备用于向下挂基站推送组播业务。Step S101: The packet transport network device receives the multicast service sent by the gateway device through the point-to-multipoint P2MP channel, where the packet transport network device is used to push the base station to push the multicast service.
在本实施例中,所述分组传送网设备为预设的能支持点到多点P2MP通道传送的PTN设备或者PC,所述分组传送网设备可以为用于桥接第二层虚拟网络层和第三层虚拟网络层的桥接设备,也可以是直连有至少一个基站的PTN设备;当与所述网关设备连接的分组传送网设备均支持P2MP通道时,在网关设备接收到外界服务器发送的组播流量后,通过P2MP通道直接将接收到的组播流发送给分组传送网设备,优选的,由于所述点到多点P2MP通道具有接收一份数据流量,输出多分数据流量的特点,因此,根据该特点网关设备在发送组播流量时,不需要根据下挂基站的数量进行发送,对于多个下挂基站情求相同的业务网关设备只需要发送一份即可,不需要针对每个基站都发送,并且通过P2MP通道与多个PTN设备通信时,只需要设置一条P2MP通道即可,这样大大减轻了网关设备分别发送时的流量负荷。 In this embodiment, the packet transport network device is a preset PTN device or PC capable of supporting point-to-multipoint P2MP channel transmission, and the packet transport network device may be used for bridging the second layer virtual network layer and the first The bridge device of the layer 3 virtual network layer may also be a PTN device directly connected to at least one base station; when the packet transport network device connected to the gateway device supports the P2MP channel, the gateway device receives the group sent by the external server. After the traffic is broadcast, the received multicast stream is directly sent to the packet transport network device through the P2MP channel. Preferably, since the point-to-multipoint P2MP channel has the function of receiving one data traffic and outputting the multi-point data traffic, therefore, According to the feature, the gateway device does not need to send according to the number of the connected base stations when transmitting the multicast traffic, and only needs to send one copy for the same service gateway device for multiple downlink base stations, and does not need to be used for each base station. When sending and communicating with multiple PTN devices through the P2MP channel, only one P2MP channel needs to be set, which greatly reduces the gateway device. When traffic load is transmitted.
在本实施例中,在该步骤通过通过点到多点P2MP通道接收组播业务之前之前,还包括:查询所述分组传送网设备与所述网关设备之间是否已存在点到多点P2MP通道;若所述分组传送网设备与所述网关设备之间不存在点到多点P2MP通道,则根据预设的通道模型创建点到多点P2MP通道。In this embodiment, before the step of receiving the multicast service through the point-to-multipoint P2MP channel, the method further includes: querying whether there is a point-to-multipoint P2MP channel between the packet transport network device and the gateway device. If there is no point-to-multipoint P2MP channel between the packet transport network device and the gateway device, a point-to-multipoint P2MP channel is created according to the preset channel model.
在示例性实施方式中,在创建完成点到多点P2MP通道之后,为了更加方便后续的使用,该方法还包括:对创建的点到多点P2MP通道添加查询标签,并将创建的通道以及对应的查询标签更新到对应关系表中。In an exemplary embodiment, after the point-to-multipoint P2MP channel is created, in order to facilitate subsequent use, the method further includes: adding a query label to the created point-to-multipoint P2MP channel, and creating the channel and corresponding The query tag is updated to the corresponding relationship table.
步骤S102,所述分组传送网设备将组播业务推送至下挂基站。Step S102, the packet transport network device pushes the multicast service to the downlink base station.
在本实施例中,所述分组传送网设备与下挂基站之间进行组播业务交互时,是通过预设的交互协议进行,优选的,所述预设的交互协议为IGMP协议;在分组传送网设备接收到网关发送的组播业务后,分组传送网设备根据下挂的各基站的业务请求从组播业务中查询对应的组播业务下发给对应的基站。In this embodiment, when the multicast service interaction between the packet transport network device and the attached base station is performed by using a preset interaction protocol, preferably, the preset interaction protocol is an IGMP protocol; After the transport network device receives the multicast service sent by the gateway, the packet transport network device queries the corresponding multicast service from the multicast service to the corresponding base station according to the service request of each of the connected base stations.
在示例性实施方式中,在本实施例中是以所述分组传送网设备作为IGMP查询器(IGMP Quierer),分组传送网设备和下挂基站之间是通过IGMP协议进行交互,具体是所述分组传送网设备与所述下挂基站通过互联网组管理协议查询下挂基站对应实际交互的组播业务,根据查询到的实际交互组播业务给所述下挂基站推送对应的组播业务,也即是根据与下挂基站交互的实际情况从组播业务中选择与基站对应的组播业务推送。In an exemplary embodiment, in the embodiment, the packet transport network device is used as an IGMP querier (IGMP Quierer), and the packet transport network device and the attached base station interact with each other through an IGMP protocol, specifically The packet transport network device and the connected base station query the actual multicast service of the connected base station through the Internet group management protocol, and push the corresponding multicast service to the downlink base station according to the actual interactive multicast service that is queried. That is, the multicast service push corresponding to the base station is selected from the multicast service according to the actual situation of interaction with the attached base station.
在本实施例中,当第二层虚拟网络层(L2VPN,又称接入层)和第三层虚拟网络层(L3VPN,又称汇聚层)中的所有分组传送网设备都支持P2MP通道时,所述分组传送网设备为直连有至少一个所述下挂基站的接入层分组传送网设备,所述接收模块通过接入层分组传送网设备接收所述网关设备通过点到多点P2MP通道发送的组播组业务,所述接入层分组传送网设备将接收到的组播业务根据对应的交互协议分别下发至所述下挂基站,具体是网关设备通过点到多点P2MP通道将组播业务发送至连接有所述下挂基站的接入层分组传送网设备。In this embodiment, when all the packet transport network devices in the second layer virtual network layer (L2VPN, also called access layer) and the third layer virtual network layer (L3VPN, also called the aggregation layer) support the P2MP channel, The packet transport network device is an access layer packet transport network device directly connected to at least one of the downlink base stations, and the receiving module receives the gateway device through a point-to-multipoint P2MP channel through an access layer packet transport network device. The multicast group service is sent, and the access layer packet transport network device delivers the received multicast service to the downlink base station according to the corresponding interaction protocol, specifically, the gateway device passes the point-to-multipoint P2MP channel. The multicast service is sent to an access layer packet transport network device to which the base station is connected.
如图2所示,为本实施例提供的L2VPN和L3VPN都支持P2MP的边缘设备的示意图,在MBMS_GW(网关设备)接收到来自外界服务器发送过来 的组播流量,这里的组播流量包括至少一种业务类型的流量,例如,视频流量、电视节目、音频流量等等。当多个下挂基站交互的是同一个业务类型的组播业务时,其需要的流量的相同的,因此,所述PTN设备直接将对应的组播业务复制后分别推送给基站即可,当多个基站交互的业务类型为不同的类型时,所述PTN设备在推送组播业务之前,还需要获取各基站交互的业务类型对应需要的流量,根据业务类,PTN设备为基站推送对应的流量。As shown in FIG. 2, the schematic diagram of the P2MP edge device supported by both the L2VPN and the L3VPN provided in this embodiment is sent by the MBMS_GW (gateway device) from the external server. Multicast traffic, where the multicast traffic includes traffic of at least one type of traffic, such as video traffic, television programming, audio traffic, and the like. When a plurality of subordinate base stations exchange multicast services of the same service type, the required traffic is the same. Therefore, the PTN device directly copies the corresponding multicast service and then pushes the corresponding multicast service to the base station. When the service types of the multiple base stations are different, the PTN device needs to obtain the traffic corresponding to the service type of the interaction between the base stations before pushing the multicast service. According to the service class, the PTN device pushes the corresponding traffic for the base station. .
在示例性实施方式中,MBMS_GW将接收到的组播流量不做任何的筛选处理,直接发送给PTN设备K1和K2;K1和K2在接收到组播业务后,根据接收到下一层PTN设备或者基站发送的请求进行组播业务的推送,具体的推送方式如下:In an exemplary embodiment, the MBMS_GW sends the received multicast traffic to the PTN devices K1 and K2 without any filtering process; after receiving the multicast service, the K1 and K2 receive the next PTN device according to the receiving. Or the request sent by the base station to push the multicast service. The specific push mode is as follows:
方式一、当接收到的是基站的业务请求,则K1根据基站1的业务请求从组播流量中查询对应的组播业务发送给基站1,最后通过基站将该组播业务推送给用户设备;In the first mode, when the service request of the base station is received, the K1 queries the multicast service from the multicast traffic to the base station 1 according to the service request of the base station 1, and finally pushes the multicast service to the user equipment through the base station;
方式二、当K1接收到的是下一层PTN设备发送的组播业务请求时,则K1将接收的所有组播流量发送给PTN设备N1,然后由N1根据与N1连接的设备发送的业务请求从组播业务包中查询对应的组播业务进行推送,最后设备将接收到的组播业务推送给用户设备。Manner 2: When K1 receives the multicast service request sent by the next layer of the PTN device, K1 sends all the multicast traffic received to the PTN device N1, and then the N1 sends the service request according to the device connected to the N1. The multicast service packet is queried from the multicast service packet for the push, and finally the device pushes the received multicast service to the user equipment.
在本实施例中,不管PTN设备下连接的是基站还是PTN设备,都可以按照上述的方式一进行组播流量的推送,每层的PTN设备都可以进行适当的筛选后才推送,这样不仅可以充分利用了各PTN设备的流量资源,还可以极大地提高了推送效率。当然,若PTN设备下既连接有基站也连接有PTN设备时,则分别根据上述的方式一和方式二进行业务流量的推送。In this embodiment, regardless of whether the PTN device is connected to a base station or a PTN device, multicast traffic can be pushed according to the foregoing manner, and each layer of the PTN device can be properly filtered before being pushed. By making full use of the traffic resources of each PTN device, the push efficiency can be greatly improved. Of course, if the PTN device is connected to both the base station and the PTN device, the service traffic is pushed according to the first mode and the second mode.
如图3,为本实施例提供的只有L3VPN支持P2MP的边缘设备的示意图,基于图3的边缘设备实现组播业务交互的具体过程为:FIG. 3 is a schematic diagram of an edge device that only supports the P2MP by using the L3VPN according to the embodiment, and the specific process for implementing the multicast service interaction based on the edge device in FIG. 3 is:
当L2VPN中存在分组传送网设备不支持P2MP通道,且L3VPN中的所有分组传送网设备都支持点对多点通道时,所述分组传送网设备通过点到多点P2MP通道接收网关设备发送的组播业务为:所述分组传送网设备为桥接第二层虚拟网络层L2VPN和第三层虚拟网络层L3VPN的各二三层虚拟网络桥接的分组传送网设备,所述接收模块通过各二三层虚拟网络桥接的分组传 送网设备接收所述网关设备通过点到多点P2MP通道发送的组播组业务,所述各二三层虚拟网络层桥接的分组传送网设备再将接收到的组播组业务推送到下一接入层分组传送网设备。When the packet transport network device does not support the P2MP channel in the L2VPN, and all the packet transport network devices in the L3VPN support the point-to-multipoint channel, the packet transport network device receives the group sent by the gateway device through the point-to-multipoint P2MP channel. The broadcast service is: the packet transport network device is a packet transport network device bridging each of the Layer 2 and Layer 3 virtual network layers of the Layer 2 virtual network layer L2VPN and the Layer 3 virtual network layer L3VPN, and the receiving module passes through two layers and three layers. Packet transmission of virtual network bridge The network sending device receives the multicast group service sent by the gateway device through the point-to-multipoint P2MP channel, and the packet transport network device bridged by the two Layer 3 virtual network layers pushes the received multicast group service to the next Access layer packet transport network device.
如图3所示,L3VPN包括PTN设备K1、K2和M1~M4,其中M1~M4为L2VPN与L3VPN的桥接设备,并且K1、K2和M1~M4是支持P2MP的新设备,在L3VPN以及MBMS_GW的组播业务的交互过程为,MBMS_GW接收到来自外界服务器发送过来的组播流量,这里的组播流量包括至少一种业务类型的流量,例如,视频流量、电视节目、音频流量等等。MBMS_GW将接收到的组播流量不做任何的筛选处理,直接发送给PTN设备K1和K2;K1和K2在接收到组播流量后,根据接收到下一层PTN设备或者基站发送的请求进行组播流量的推送,也即是图3中所示的与K1连接的设备M1、M3和基站1,K1与设备M1、M3和基站1之间的组组播业务交互过程与图2中的相同,这里就不再重复赘述了。As shown in FIG. 3, the L3VPN includes PTN devices K1, K2, and M1 to M4, where M1 to M4 are bridge devices of L2VPN and L3VPN, and K1, K2, and M1 to M4 are new devices supporting P2MP, in L3VPN and MBMS_GW. The interaction process of the multicast service is that the MBMS_GW receives the multicast traffic sent from the external server, where the multicast traffic includes traffic of at least one service type, for example, video traffic, television programs, audio traffic, and the like. The MBMS_GW sends the received multicast traffic to the PTN devices K1 and K2 without any filtering process. After receiving the multicast traffic, K1 and K2 perform the group according to the request sent by the next PTN device or the base station. The push of the broadcast traffic, that is, the devices M1, M3 and the base station 1 connected to K1 shown in FIG. 3, the group multicast service interaction process between K1 and the devices M1, M3 and the base station 1 is the same as that in FIG. Here, we will not repeat them.
对于L2VPN中各设备或者基站的业务交互时,如图3中的以及基站之间的交互过程具体是通过原有的通信链路进行交互,在示例性实施方式中,通过M1、M2与下接的设备N1、N2、设备A、B、C、D直接通过VPLS或VPLS连接,由二三层桥接PTN设备M1、M2分别将组播流量下发至设备N1、N2,设备N1再分别下发至设备A、B、C、D,最后以设备A、B、C、D作为IGMP查询器,与下挂基站通过IGMP协议交互来决定是否推送组播业务,推送哪些播组业务。For the service interaction of each device or the base station in the L2VPN, the interaction process between the base station and the base station in FIG. 3 is specifically performed through the original communication link. In an exemplary embodiment, the M1 and the M2 are connected to each other. The devices N1, N2, and devices A, B, C, and D are directly connected through VPLS or VPLS. The Layer 2 and Layer 3 bridged PTN devices M1 and M2 respectively deliver multicast traffic to devices N1 and N2. To the devices A, B, C, and D, the devices A, B, C, and D are used as the IGMP querier to determine whether to push the multicast service and push the multicast service by using the IGMP protocol.
在本实施例中,在以PTN设备作为IGMP查询器实现从所述PTN设备到所述下挂基站的推送处理具体包括:当所述分组传送网设备下连接有多个下挂基站时,在该分组传送网设备根据预设的虚拟局域网的推送数量复制多份组播业务,并分别将组播业务分别推送到对应的多个下挂基站,具体的所述分组传送网设备包括用于实现二三层虚拟网络桥接的分组传送网设备和其他连接有对个基站的分组传送网设备,但是不管哪一种分组传送网设备,其都会存在连接多个基站的情况,这时就可以根据请求将接收到的组播业务进行复制,然后分别发送给基站,具体是根据虚拟局域网下挂的基站的个数,将所述组播业务进行复制,并分别将复制后的组播业务分别推送到对应的多 个下挂基站。In this embodiment, the step of implementing the push processing from the PTN device to the downlink base station by using the PTN device as the IGMP querier includes: when a plurality of downlink base stations are connected to the packet transport network device, The packet transport network device copies multiple multicast services according to the preset number of pushes of the virtual local area network, and respectively pushes the multicast service to the corresponding multiple downlink base stations, where the specific packet transport network device is used to implement A packet transport network device bridged by two or three layers of virtual networks and other packet transport network devices connected to each base station, but regardless of which type of packet transport network device, there are cases where multiple base stations are connected, and then according to the request The multicast service is copied and then sent to the base station, where the multicast service is copied according to the number of base stations connected to the virtual local area network, and the copied multicast service is separately sent to the base station. Correspondingly Hanging base stations.
如图3所示,设备A下挂有基站2和基站3,当两个基站同时请求的是相同的业务,都是视频流量,这时,设备A在接收到设备N1发送的组播流量后,查询接收到的关于视频流量的业务请求的个数或者查询预先设置的虚拟局域网业务推送数量,该虚拟局域网业务推送数量是根据下挂的基站数进行预设的,设备A根据查询到的业务请求个数或者业务推送数量进行视频流量的复制,复制的分数与查询到的业务请求个数或者业务推送数量相等,最后将得到的视频流量分别推送到对应的多个下挂基站。As shown in Figure 3, the base station 2 and the base station 3 are connected to the device A. When the two base stations request the same service at the same time, they are all video traffic. In this case, after receiving the multicast traffic sent by the device N1, the device A receives the multicast traffic. Querying the number of received service requests for video traffic or querying the pre-set number of virtual local area network service pushes. The number of virtual local area network service pushes is preset according to the number of connected base stations, and device A is based on the queried service. The number of requests or the number of service pushes is used to copy the video traffic. The number of copies is equal to the number of service requests or the number of service pushes. Finally, the obtained video traffic is pushed to the corresponding multiple downlink base stations.
本发明实施例提供的分组传送网的组播业务实现方法,MBMS_GW通过P2MP通道把各个组播业务全部推送到与各个直连基站的PTN设备上,再以该PTN设备作为查询器,与下挂基站通过IGMP协议交互来决定各个基站对应推送的组播业务,实现了MBMS_GW只需要进行一份业务数据的推送,大大减少了网关交互数据的工作量。In the multicast service implementation method of the packet transmission network provided by the embodiment of the present invention, the MBMS_GW pushes all the multicast services to the PTN device of each directly connected base station through the P2MP channel, and then uses the PTN device as a querier and hangs The base station determines the multicast service pushed by each base station through IGMP protocol interaction, and realizes that only one service data is pushed by the MBMS_GW, which greatly reduces the workload of the gateway interaction data.
本发明实施例还提供了一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被执行时实现上述分组传送网的组播业态实现方法。The embodiment of the invention further provides a computer readable storage medium storing computer executable instructions, which are implemented when the computer executable instructions are executed to implement the multicast business implementation method of the packet transport network.
实施例二:Embodiment 2:
请参见图4,图4为本实施例提供的分组传送网的组播业务实现装置的结构框图,该分组传送网的组播业务实现装置4包括:接收模块41和交互模块42,其中:Referring to FIG. 4, FIG. 4 is a structural block diagram of a device for implementing a multicast service in a packet transport network according to the embodiment. The multicast service implementation apparatus 4 of the packet transport network includes: a receiving module 41 and an interaction module 42, where:
接收模块41设置成通过分组传送网设备接收网关设备通过P2MP通道发送的组播组业务,所述预设分组传送网设备用于向下挂基站推送组播组。The receiving module 41 is configured to receive, by the packet transport network device, a multicast group service that is sent by the gateway device through the P2MP channel, where the preset packet transport network device is used to push the base station to push the multicast group.
在本实施例中,与所述网关设备连接的分组传送网设备均支持P2MP通道,接收模块41在发送组播业务时,不需要根据下挂基站的数量进行发送,对于多个下挂基站情求相同的业务网关设备只需要发送一份即可,不需要针对每个基站都发送,并且通过P2MP通道与多个PTN设备通信时,只需要设置一条P2MP通道即可,这样大大减轻了网关分别发送时的流量负荷。 In this embodiment, the packet transport network device connected to the gateway device supports the P2MP channel, and the receiving module 41 does not need to send according to the number of the connected base stations when transmitting the multicast service, for multiple downlink base stations. The same service gateway device only needs to send one copy, and does not need to be sent for each base station, and only needs to set a P2MP channel when communicating with multiple PTN devices through the P2MP channel, thereby greatly reducing the gateway respectively. The traffic load at the time of transmission.
在示例性实施方式中,所述组播业务实现装置还包括查询模块、通道创建模块和标签模块,所述查询模块设置成查询所述分组传送网设备与所述网关设备之间是否已存在点到多点P2MP通道;若分组传送网设备与网关设备之间不存在点到多点P2MP通道,则所述通道创建模块根据预设的通道模型创建点到多点P2MP通道。In an exemplary embodiment, the multicast service implementation apparatus further includes a query module, a channel creation module, and a label module, and the query module is configured to query whether a point exists between the packet transport network device and the gateway device To the multi-point P2MP channel; if there is no point-to-multipoint P2MP channel between the packet transport network device and the gateway device, the channel creation module creates a point-to-multipoint P2MP channel according to the preset channel model.
所述标签模块设置成对创建的点到多点P2MP通道添加标签,所述标签用于标识所述点到多点P2MP通道,具体的用于查询所述分组传送网设备与所述网关设备之间的P2MP通道时使用,直接通过标签即可查询到对应的P2MP通道。The tag module is configured to add a label to the created point-to-multipoint P2MP channel, where the tag is used to identify the point-to-multipoint P2MP channel, specifically for querying the packet transport network device and the gateway device. When using the P2MP channel, you can query the corresponding P2MP channel directly through the label.
交互模块42设置成将所述分组传送网设备接收到的播组业务推送至所述下挂基站。The interaction module 42 is configured to push the broadcast group service received by the packet transport network device to the downlink base station.
在本实施例中,所述分组传送网设备与下挂基站之间进行组播业务交互时,是通过预设的交互协议进行,在示例性的实施方式中,所述预设的交互协议为IGMP协议;所述交互模块42将所述分组传送网设备作为IGMP查询器,所述分组传送网设备与所述下挂基站通过互联网组管理协议查询对应的组播业务,根据查询到的组播业务给所述下挂基站推送对应的组播业务。具体的,在分组传送网设备接收到网关发送的组播业务后,分组传送网设备根据下挂的各基站的业务请求从组播业务包中查询对应的组播业务下发给对应的基站。In this embodiment, the interaction between the packet transport network device and the downlink base station is performed by using a preset interaction protocol. In an exemplary implementation manner, the preset interaction protocol is The IGMP protocol; the interaction module 42 uses the packet transport network device as an IGMP querier, and the packet transport network device and the downlink base station query the corresponding multicast service through the Internet group management protocol, according to the queried multicast The service pushes the corresponding multicast service to the downlink base station. Specifically, after the packet transport network device receives the multicast service sent by the gateway, the packet transport network device queries the corresponding multicast service from the multicast service packet and sends the corresponding multicast service to the corresponding base station according to the service request of each of the connected base stations.
在本实施例中,当L2VPN和L3VPN中的所有分组传送网设备都支持点对多点通道时,所述交互模块42通过点对多点通道将组播业务推送到分组传送网设备具体是网关设备通过点到多点P2MP通道将组播业务发送至连接有所述下挂基站的接入层分组传送网设备。In this embodiment, when all the packet transport network devices in the L2VPN and the L3VPN support the point-to-multipoint channel, the interaction module 42 pushes the multicast service to the packet transport network device through the point-to-multipoint channel, specifically the gateway. The device sends the multicast service to the access layer packet transport network device connected to the downlink base station through the point-to-multipoint P2MP channel.
如图2所示,在MBMS_GW接收到来自外界服务器发送过来的组播流量后,直接发送给PTN设备K1和K2;K1和K2在接收到组播业务后,根据接收到下一层PTN设备或者基站发送的请求进行组播业务的推送。As shown in FIG. 2, after the MBMS_GW receives the multicast traffic sent from the external server, it directly sends it to the PTN devices K1 and K2; after receiving the multicast service, K1 and K2 receive the next PTN device or The request sent by the base station performs the push of the multicast service.
当接收到的是基站的业务请求,则K1根据基站1的业务请求从组播业务包中查询对应的组播业务发送给基站1,最后通过基站将该组播业务推送给用户设备;当K1接收到的是下一层PTN设备发送的组播业务请求时,则 K1将接收的所有组播业务发送给PTN设备N1,然后由N1根据与N1连接的设备发送的业务请求从组播业务中查询对应的组播业务进行推送,最后设备将接收到的组播业务推送给用户设备。When receiving the service request of the base station, K1 queries the corresponding multicast service from the multicast service packet to the base station 1 according to the service request of the base station 1, and finally pushes the multicast service to the user equipment through the base station; When the multicast service request sent by the next layer of the PTN device is received, K1 sends all the received multicast services to the PTN device N1, and then N1 queries the corresponding multicast service from the multicast service according to the service request sent by the device connected to the N1, and finally the device receives the multicast service. Push to the user device.
当L2VPN中存在分组传送网设备不支持P2MP通道,且L3VPN中的所有分组传送网设备都支持点对多点通道时,所述交互模块42通过网关设备通过P2MP通道将组播组业务推送到L3VPN中的各二三层虚拟网络桥接分组传送网设备,再通过所述各二三层虚拟网络桥接分组传送网设备将组播组业务推送到下一接入层分组传送网设备。When the packet transport network device in the L2VPN does not support the P2MP channel, and all the packet transport network devices in the L3VPN support the point-to-multipoint channel, the interaction module 42 pushes the multicast group service to the L3VPN through the P2MP channel through the gateway device. Each of the two or three layers of the virtual network bridges the packet transport network device, and then pushes the multicast group service to the next access layer packet transport network device by using the two or three layers of the virtual network bridge packet transport network device.
如图3所示,L3VPN以及MBMS_GW的组播业务的交互过程与图2中的相同,在L2VPN中各设备或者基站的业务交互时,由二三层虚拟网络桥接PTN设备M1、M2分别将组播流量下发至设备N1、N2,设备N1再分别下发至设备A、B、C、D,最后以设备A、B、C、D作为IGMP查询器,与下挂基站通过IGMP协议交互来决定是否推送组播流量,推送哪些组播组的流量。优选的,通过VPLS或VPLS来实现。As shown in Figure 3, the interaction process between the L3VPN and the MBMS_GW is the same as that in Figure 2. When the services of the devices or the base station interact in the L2VPN, the PTN devices M1 and M2 are respectively connected by the Layer 2 and Layer 3 virtual networks. The broadcast traffic is delivered to the devices N1 and N2, and the device N1 is sent to the devices A, B, C, and D respectively. Finally, the devices A, B, C, and D are used as IGMP queriers, and the downlink base stations are exchanged through the IGMP protocol. Decide whether to push multicast traffic and push which multicast group traffic. Preferably, it is implemented by VPLS or VPLS.
在本实施例中,当所述分组传送网设备对应有多个下挂基站时,所述交互模块42设置成在该分组传送网设备根据预设的虚拟局域网的推送数量复制多份组播页流量,并分别将组播业务流量分别推送到对应的多个下挂基站,具体的所述分组传送网设备包括用于实现二三层虚拟网络桥接的分组传送网设备和其他连接有对个基站的分组传送网设备,但是不管哪一种分组传送网设备,其都会存在连接多个基站的情况,这时就可以根据请求将接收到的组播业务进行复制,然后分别发送给基站。In this embodiment, when the packet transport network device corresponds to multiple downlink base stations, the interaction module 42 is configured to copy multiple multicast pages according to the preset number of pushes of the virtual local area network by the packet transport network device. Traffic, and respectively push the multicast service traffic to the corresponding multiple downlink base stations, and the specific packet transport network device includes a packet transport network device for implementing Layer 2 and Layer 3 virtual network bridging, and other connected base stations. The packet transport network device, but regardless of which type of packet transport network device, there are cases where multiple base stations are connected, and then the received multicast service can be copied according to the request and then sent to the base station.
在本实施例中,对于上述图4提供的组播业务实现装置4各各个模块所实现的功能还可以通过处理器、接收模块和发送模块来实现,此时,分组传送网的组播业务实现装置的实现方式可以为:In this embodiment, the functions implemented by each module of the multicast service implementation apparatus 4 provided in FIG. 4 above may also be implemented by a processor, a receiving module, and a sending module. In this case, the multicast service implementation of the packet transport network is implemented. The implementation of the device can be:
接收模块接收来自服务器发送的组播业务;The receiving module receives the multicast service sent from the server;
处理器通过P2MP通道将接收到的组播业务推送到分组传送网设备,其中,分组传送网设备用于向下挂基站推送组播业务。The processor pushes the received multicast service to the packet transport network device through the P2MP channel, where the packet transport network device is used to push the base station to push the multicast service.
处理器与所述下挂基站进行协议交互,查询与下挂各个基站对应的业务组播流量,从而实现将组播业务从所述分组传送网设备到所述下挂基站的推 送处理。The processor performs protocol interaction with the downlink base station, and queries service multicast traffic corresponding to each base station, so as to implement push of the multicast service from the packet transport network device to the downlink base station. Send processing.
在示例性的实施方式中,所述接收模块41可以直接采用支持P2MP通道的家庭网关来实现,而交互模块42采用PTN设备来实现,其交互流程为:家庭网关接收来至服务器的组播流量,然后通过与接入层的PTN设备建立P2MP通道将组播业务通过P2MP通道发送给接入层的PTN设备,以接入层的PTN设备作为查询器,通过IGMP协议与下挂基站交互,确定需要推送的组播月。In an exemplary embodiment, the receiving module 41 can be directly implemented by a home gateway supporting a P2MP channel, and the interaction module 42 is implemented by using a PTN device, and the interaction process is: the home gateway receives the multicast traffic to and from the server. Then, the P2MP channel is established with the PTN device of the access layer to send the multicast service to the PTN device of the access layer through the P2MP channel, and the PTN device of the access layer serves as a querier, and interacts with the connected base station through the IGMP protocol to determine The multicast month that needs to be pushed.
在本实施例中,对家庭网关与接入层的PTN设备之间的P2MP通道的建立流程如下:In this embodiment, the process of establishing a P2MP channel between the PTN device of the home gateway and the access layer is as follows:
步骤1,处理器查询与PTN设备之间已有的P2MPSwitch节点和多播流点。Step 1. The processor queries the existing P2MPSwitch node and the multicast stream point between the PTN device and the PTN device.
该步骤主要是用于判断是否已存在与该组播流量对应的P2MPSwitch节点,若不存在则新建,并且将新建的节点与原有的其他P2MPSwitch节点挂接兄弟关系,通知模型,通知表生成器进行节点列表的更新处理;或者,判断是否已存在与该组播流量对应的多播流点,若不存在则新建,并且将新建的节点与原有的其他多播流点挂接兄弟关系,通知模型,通知表生成器进行节点列表的更新处理,这里的模型指的是PTN设备上预设的建立节点或流点的建立规则,通过对应的建立规则建立节点或流点。若存在,则直接进行查询出、入向LSP节点和出、入向LSP流点进行组播业务的交互。This step is mainly used to determine whether a P2MPSwitch node corresponding to the multicast traffic exists. If it does not exist, the new node is added, and the newly created node is connected with the other P2MP Switch nodes, and the notification model is generated. Performing an update process on the node list; or determining whether a multicast stream point corresponding to the multicast traffic already exists, if not existing, creating a new one, and attaching the newly created node to the original other multicast stream point to have a sibling relationship. The notification model, the notification table generator performs update processing of the node list, where the model refers to a preset establishment node or a flow point establishment rule on the PTN device, and establishes a node or a flow point through a corresponding establishment rule. If yes, the multicast service interaction between the inbound and outbound LSP nodes and the inbound and outbound LSPs is performed.
步骤2,新建出向LSP节点和出向LSP流点,挂接父子关系,根据出向LSP端口信息挂接lsp节点与装置上的物理端口之间的关系,通知模型,通知表生成器,这里的父子关系指的是节点与流点之间的关系,一个节点下存在多个流点。Step 2: Create a new outgoing LSP node and an outgoing LSP flow point, attach a parent-child relationship, and attach a relationship between the lsp node and the physical port on the device according to the outgoing LSP port information, notify the model, notify the table generator, and the parent-child relationship here. Refers to the relationship between nodes and flow points, there are multiple flow points under one node.
在本实施例中,当新建的P2MPSwitch节点为非根节点时,则还需要建立入向LSP节点和入向LSP流点,具体如步骤3所示。In this embodiment, when the newly created P2MPSwitch node is a non-root node, the inbound LSP node and the inbound LSP flow point need to be established, as shown in step 3.
步骤3,非根节点新建入向LSP节点和LSP流点,挂接父子关系,根据入向LSP端口信息挂接LSP节点与端口之间父子关系,通知模型,通知表生成器; Step 3: The non-root node newly establishes an inbound LSP node and an LSP flow point, attaches a parent-child relationship, and attaches a parent-child relationship between the LSP node and the port according to the information of the incoming LSP port, notifies the model, and notifies the table generator;
步骤4,将出向LSP流点与多播流点挂接父子关系,将P2MPSwitch节点分别与多播流点,入向LSP流点挂接兄弟关系,通知模型,通知表生成器;In step 4, the parent-child relationship is connected to the LSP flow point and the multicast stream point, and the P2MPSwitch node and the multicast stream point are respectively connected to the LSP flow point, and the sibling relationship is notified to notify the model and notify the table generator;
步骤5,配置相关节点属性,通知模型,通知表生成器。Step 5: Configure related node attributes, notify the model, and notify the table generator.
在本实施例中,分组传送网的组播业务实现装置还包括对P2MP通道进行实时检测,判断各通道是否长时间不进行组播业务交互,若是,则执行通道删除步骤,具体如下所示:In this embodiment, the device for implementing the multicast service of the packet transport network further includes performing real-time detection on the P2MP channel to determine whether each channel does not perform multicast service interaction for a long time, and if so, performing a channel deletion step, as follows:
步骤一、通知L3组播命令处理器处理,通知模型,通知表生成器进行节点列表的更新处理。Step 1: Notifying the L3 multicast command processor to process, notify the model, and the notification table generator performs update processing of the node list.
步骤二、释放多播流点index,通知模型,通知表成器进行节点列表的更新处理。Step 2: Release the multicast stream point index, notify the model, and notify the table generator to update the node list.
步骤三、解除入向LSP与端口之间的关系,出向LSP与端口之间的关系,出向LSP流点与多播流点的关系,P2MPSwitch节点与多播流点,入向LSP流点的关系,通知模型,通知表成器进行节点列表的更新处理。Step 3: Dissolve the relationship between the incoming LSP and the port, the relationship between the outgoing LSP and the port, the relationship between the outgoing LSP flow point and the multicast streaming point, and the relationship between the P2MPSwitch node and the multicast streaming point and the incoming LSP flow point. , the notification model, and the notification table generator performs update processing of the node list.
步骤四、删除有P2MP相关的所有节点和流点,通知模型,通知表成器进行节点列表的更新处理。Step 4: Delete all nodes and flow points related to the P2MP, notify the model, and notify the lister to update the node list.
在本实施例中,为了方便后续再进行相同的组播业务交互时可以直接查询调用,通过上述的步骤在家庭网关与接入层的PTN设备之间建立一条P2MP通道后,还包括为新建的P2MP通道增加标签,具体步骤如下:In this embodiment, the P2MP channel is established between the home gateway and the PTN device at the access layer by using the above steps to facilitate the subsequent multicast service interaction. Add tags to the P2MP channel. The specific steps are as follows:
步骤a,收到添加P2MP通道标签的命令后,查询标签map,处理标签map的存储;Step a, after receiving the command to add the P2MP channel label, query the label map, and process the storage of the label map;
步骤b,检测对应通道标签发生变化,将旧的通道对应的入标签签置为无效值,通知模型,通知表生成器更新变更后的通道标签;Step b, detecting that the corresponding channel label changes, signing the inbound label corresponding to the old channel as an invalid value, notifying the model, and the notification table generator updates the changed channel label;
步骤c,设置P2MP通道的入标签,通知模型,通知表成器进行节点列表的更新处理;Step c: setting an inbound label of the P2MP channel, notifying the model, and notifying the table to perform update processing of the node list;
当接收到的是删除P2MP通道标签的命令时,则查询标签map,并将对应的通道进行删除即可。When the command to delete the P2MP channel label is received, the label map is queried and the corresponding channel is deleted.
对应的,本发明实施例还提供了一种通信系统,该通信系统包括上述的分组传送网的组播业务实现装置,所述系统通过P2MP通道将组播业务推送 到分组传送网设备,将所述分组传送网设备作为查询器,与所述下挂基站进行协议交互,实现将组播业务从所述分组传送网设备到所述下挂基站的推送处理。Correspondingly, the embodiment of the present invention further provides a communication system, where the communication system includes the multicast service implementation device of the packet transport network, where the system pushes the multicast service through the P2MP channel. And to the packet transport network device, the packet transport network device is used as a querier, and performs protocol interaction with the downlink base station to implement push processing of the multicast service from the packet transport network device to the downlink base station.
综上所述,本发明实施例提供的分组传送网的组播业务实现方法及其装置,分组传送网设备通过点到多点P2MP通道接收网关设备发送的组播业务,该分组传送网设备通过预设的交互协议与下挂基站进行交互,将组播业务推送给下挂基站;通过对本发明实施例提供的方法的实施,网关将接收到的组播业务通过P2MP通道直接推送到预先设置好的分组传送网设备过程中,只需要进行一份业务数据的推送,大大减少了网关交互数据的工作量,同时也减少了网关与设备之间的链路设置,减少了不必要资源的消耗浪费,降低了成本,提高了网关数据的处理效率,然后再由分组传送网分别与下挂基站进行协议交互,实现了逐一的组播业务推送,保证了业务推动的准确性,也有效利用了系统资源,实现了组播业务推送的灵活控制。In summary, the method and device for implementing the multicast service of the packet transport network provided by the embodiment of the present invention, the packet transport network device receives the multicast service sent by the gateway device by using the point-to-multipoint P2MP channel, and the packet transport network device passes The preset interaction protocol interacts with the connected base station to push the multicast service to the downlink base station. The implementation of the method provided by the embodiment of the present invention, the gateway directly pushes the received multicast service to the pre-set through the P2MP channel. In the process of the packet transport network device, only one service data is pushed, which greatly reduces the workload of the gateway interaction data, and also reduces the link setting between the gateway and the device, thereby reducing the waste of unnecessary resources. The cost is reduced, the processing efficiency of the gateway data is improved, and then the packet transmission network separately performs protocol interaction with the downlink base station, thereby implementing one-by-one multicast service push, ensuring the accuracy of the service promotion, and effectively utilizing the system. Resources enable flexible control of multicast service push.
本领域普通技术人员可以理解,上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施方式中,在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分;例如,一个物理组件可以具有多个功能,或者一个功能或步骤可以由若干物理组件合作执行。某些组件或所有组件可以被实施为由处理器,如数字信号处理器或微处理器执行的软件,或者被实施为硬件,或者被实施为集成电路,如专用集成电路。这样的软件可以分布在计算机可读介质上,计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的,术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于随机存取存储器(RAM,Random Access Memory)、只读存储器(ROM,Read-Only Memory)、电可擦除只读存储器(EEPROM,Electrically Erasable Programmable Read-only Memory)、闪存或其他存储器技术、光盘只读存储器(CD-ROM,Compact Disc Read-Only  Memory)、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外,本领域普通技术人员公知的是,通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据,并且可包括任何信息递送介质。Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks/units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical The components work together. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media. Computer storage media include, but are not limited to, Random Access Memory (RAM), Read-Only Memory (ROM), and Electrically Erasable Programmable Read-only Memory (EEPROM). Flash or other memory technology, CD-ROM (CD-ROM, Compact Disc Read-Only Memory), digital versatile disc (DVD) or other optical disc storage, magnetic box, magnetic tape, magnetic disk storage or other magnetic storage device, or any other medium that can be used to store desired information and that can be accessed by a computer. Moreover, it is well known to those skilled in the art that communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .
以上内容是结合具体的实施方式对本发明实施例所作的进一步详细说明,不能认定本发明实施例的具体实施只局限于这些说明。对于本公开所属技术领域的普通技术人员来说,在不脱离本公开构思的前提下,还可以做出若干简单推演或替换,都应当视为属于本公开的保护范围。The above is a detailed description of the embodiments of the present invention in conjunction with the specific embodiments, and the specific implementation of the embodiments of the present invention is not limited to the description. It is to be understood by those skilled in the art that the present invention may be construed as being limited to the scope of the present disclosure.
工业实用性Industrial applicability
本发明实施例提供了一种分组传送网的组播业务实现方法及其装置、通信系统;在网关设备通过将接收到的组播业务通过P2MP通道直接推送到预先设置好的分组传送网设备过程中,只需要进行一份业务数据的推送,大大减少了网关发送的数据量,同时也减少了网关与设备之间的链路设置,减少了不必要资源的消耗浪费提高了网关数据的处理效率,然后再由分组传送网分别与下挂基站进行协议交互,保证了业务推动的准确性,也有效利用了系统资源,实现了组播业务推送的灵活控制。 The embodiment of the invention provides a method for implementing a multicast service of a packet transmission network, a device thereof, and a communication system. The gateway device directly pushes the received multicast service to a preset packet transmission network device through a P2MP channel. In this case, only one push of service data is needed, which greatly reduces the amount of data sent by the gateway, and also reduces the link setting between the gateway and the device, reduces the waste of unnecessary resources, and improves the processing efficiency of the gateway data. Then, the packet transmission network separately performs protocol interaction with the downlink base station to ensure the accuracy of the service promotion, and also effectively utilizes the system resources, thereby implementing flexible control of the multicast service push.

Claims (12)

  1. 一种分组传送网的组播业务实现方法,包括:A method for implementing a multicast service of a packet transport network includes:
    分组传送网设备通过点到多点P2MP通道接收网关设备发送的组播业务;The packet transport network device receives the multicast service sent by the gateway device through the point-to-multipoint P2MP channel;
    所述分组传送网设备将所述组播业务推送至下挂基站。The packet transport network device pushes the multicast service to a downlink base station.
  2. 根据权利要求1所述的分组传送网的组播业务实现方法,其中,所述分组传送网设备将所述组播业务推送至下挂基站包括:The multicast service implementation method of the packet transport network according to claim 1, wherein the pushing the multicast service to the downlink base station by the packet transport network device comprises:
    所述分组传送网设备将所述组播业务推送到直连有至少一个下挂基站的接入层分组传送网设备,所述接入层分组传送网设备将所述组播业务分别下发至所述下挂基站,其中所述分组传送网设备为用于桥接第二层虚拟网络层L2VPN和第三层虚拟网络层L3VPN的桥接设备。The packet transport network device pushes the multicast service to an access layer packet transport network device directly connected to at least one downlink base station, and the access layer packet transport network device sends the multicast service to the multicast service separately The downlink base station, wherein the packet transport network device is a bridge device for bridging the second layer virtual network layer L2VPN and the third layer virtual network layer L3VPN.
  3. 根据权利要求1或2所述的分组传送网的组播业务实现方法,在所述分组传送网设备通过点到多点P2MP通道接收网关设备发送的组播业务之前,还包括:查询所述分组传送网设备与所述网关设备之间是否已存在所述点到多点P2MP通道;若不存在所述点到多点P2MP通道,则根据预设的通道模型创建所述点到多点P2MP通道。The multicast service implementation method of the packet transport network according to claim 1 or 2, before the packet transport network device receives the multicast service sent by the gateway device by using the point-to-multipoint P2MP channel, the method further includes: querying the packet Whether the point-to-multipoint P2MP channel exists between the transport network device and the gateway device; if the point-to-multipoint P2MP channel does not exist, the point-to-multipoint P2MP channel is created according to a preset channel model .
  4. 根据权利要求3所述的分组传送网的组播业务实现方法,在所述根据预设的通道模型创建所述点到多点P2MP通道之后,还包括:对所述点到多点P2MP通道添加标签,其中所述标签用于标识所述点到多点P2MP通道。The multicast service implementation method of the packet transmission network according to claim 3, after the creating the point-to-multipoint P2MP channel according to the preset channel model, the method further includes: adding the point-to-multipoint P2MP channel A tag, wherein the tag is used to identify the point-to-multipoint P2MP channel.
  5. 根据权利要求4所述的分组传送网的组播业务实现方法,其中,所述分组传送网设备将所述组播业务推送至下挂基站包括:The multicast service implementation method of the packet transport network according to claim 4, wherein the pushing the multicast service to the downlink base station by the packet transport network device comprises:
    所述分组传送网设备通过预设的交互协议将所述组播业务推送至所述下挂基站,其中所述交互协议包括互联网组管理协议IGMP。The packet transport network device pushes the multicast service to the downlink base station by using a preset interaction protocol, where the interaction protocol includes an Internet Group Management Protocol (IGMP).
  6. 一种分组传送网的组播业务实现装置,包括:接收模块和交互模块;A multicast service implementation apparatus for a packet transport network, comprising: a receiving module and an interaction module;
    所述接收模块设置成通过分组传送网设备接收网关设备通过点到多点P2MP通道发送的组播组业务;The receiving module is configured to receive, by the packet transport network device, a multicast group service that is sent by the gateway device through a point-to-multipoint P2MP channel;
    所述交互模块设置成将所述分组传送网设备接收到的播组业务推送至下挂基站。 The interaction module is configured to push the broadcast group service received by the packet transport network device to the downlink base station.
  7. 根据权利要求6所述的分组传送网的组播业务实现装置,其中,所述交互模块设置成通过所述分组传送网设备将所述组播业务推送到直连有至少一个下挂基站的接入层分组传送网设备,所述接入层分组传送网设备将所述组播业务分别下发至所述下挂基站,其中所述分组传送网设备为用于桥接第二层虚拟网络层L2VPN和第三层虚拟网络层L3VPN的桥接设备。The apparatus for implementing a multicast service of a packet transport network according to claim 6, wherein the interaction module is configured to push the multicast service to the directly connected base station by using the packet transport network device The inbound layer packet transport network device, wherein the access layer packet transport network device delivers the multicast service to the downlink base station, where the packet transport network device is used to bridge the second layer virtual network layer L2VPN And a bridge device of the Layer 3 virtual network layer L3VPN.
  8. 根据权利要求6或7所述的分组传送网的组播业务实现装置,还包括查询模块和通道创建模块,所述查询模块设置成查询所述分组传送网设备与所述网关设备之间是否已存在所述点到多点P2MP通道;所述通道创建模块设置成:若所述分组传送网设备与所述网关设备之间不存在所述点到多点P2MP通道,则根据预设的通道模型创建点到多点P2MP通道。The multicast service implementation apparatus of the packet transmission network according to claim 6 or 7, further comprising a query module and a channel creation module, wherein the query module is configured to query whether the packet transport network device and the gateway device have been There is a point-to-multipoint P2MP channel; the channel creation module is configured to: if the point-to-multipoint P2MP channel does not exist between the packet transport network device and the gateway device, according to a preset channel model Create a point-to-multipoint P2MP channel.
  9. 根据权利要求8所述的分组传送网的组播业务实现装置,还包括标签模块,设置成对创建的点到多点P2MP通道添加标签,其中所述标签用于标识所述点到多点P2MP通道。The multicast service implementation apparatus of a packet transport network according to claim 8, further comprising a label module configured to add a label to the created point-to-multipoint P2MP channel, wherein the label is used to identify the point-to-multipoint P2MP aisle.
  10. 根据权利要求9所述的分组传送网的组播业务实现装置,其中,所述分组传送网设备通过预设的交互协议将所述组播业务推送至所述下挂基站,其中所述交互协议包括互联网组管理协议IGMP。The apparatus for implementing a multicast service of a packet transport network according to claim 9, wherein the packet transport network device pushes the multicast service to the downlink base station by using a preset interaction protocol, wherein the interaction protocol Including the Internet Group Management Protocol IGMP.
  11. 一种通信系统,包括:如权利要求6至10任一项所述分组传送网的组播业务实现装置。A communication system comprising: a multicast service implementation apparatus for a packet transport network according to any one of claims 6 to 10.
  12. 一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令被处理器执行时实现权利要求1所述的分组传送网的组播业务实现方法。 A computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the multicast service implementation method of the packet transport network of claim 1.
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