公开(公告)号：US20140016639A1

公开(公告)日：2014-01-16

申请号：US14025491

申请日：2013-09-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hancheng DING ,  Wentao LI ,  Junjun SONG ,  Yu QIN

IPC: H04L12/18

CPC classification number: H04L12/18 ,  H04L12/1886 ,  H04L12/4641

Abstract: The present invention provides a multicast method and a multicast device. The method includes: receiving a multicast request from a user, where the multicast request includes multicast channel information and a user VLAN tag; selecting a first target multicast VLAN from pre-configured multiple multicast VLANs; after replacing the user VLAN tag in the multicast request with the first target multicast VLAN tag, forwarding the multicast request to a multicast router; receiving multicast traffic sent by the multicast router through the first target multicast VLAN, and forwarding the multicast traffic to the user. In the present invention, a target multicast VLAN is selected according to multicast channel information, so that multicast requests for the same multicast channel can be added to the same multicast VLAN. In this way, only one copy of multicast traffic of the same channel exists on a local area network, thereby saving network bandwidth resources.

Abstract translation: 本发明提供了一种组播方法和组播设备。 该方法包括：从用户接收组播请求，其中组播请求包括组播信道信息和用户VLAN标签; 从预先配置的多个组播VLAN中选择第一个目标组播VLAN; 在用第一个目标组播VLAN标签替换组播请求中的用户VLAN标签后，将组播请求转发给组播路由器; 接收组播路由器通过第一个目标组播VLAN发送的组播流量，并将组播流量转发给用户。 在本发明中，根据组播信道信息选择目的组播VLAN，使同组播信道的组播请求可以添加到同一个组播VLAN。 这样一来，局域网上就只有同一个信道的组播流量只有一个拷贝，从而节省了网络带宽资源。

公开(公告)号：US20130132995A1

公开(公告)日：2013-05-23

申请号：US13626689

申请日：2012-09-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Cong TU ,  Yu QIN ,  Junjun SONG ,  Hancheng DING ,  Yan ZHENG ,  Yinhe WANG

IPC: H04N21/266

CPC classification number: H04L63/101 ,  H04L12/185 ,  H04L63/0236 ,  H04L63/1441 ,  H04N21/25816 ,  H04N21/6405 ,  H04N21/64322

Abstract: The present invention provides a service access method, device, and system, and relates to the field of television services, to guarantee multicast security of a network device. The method includes: obtaining an authorized multicast address list according to program channel list information provided by a server; receiving an Internet Group Management Protocol IGMP packet request sent by a user terminal device, where the IGMP packet request carries a multicast address; verifying the multicast address in the IGMP packet request according to the multicast address list; and sending a media data stream corresponding to the verified multicast address to the user terminal device. The solutions of the present invention are suitable for realizing the security of multicast of network device.

Abstract translation: 本发明提供一种业务接入方法，设备和系统，涉及电视业务领域，以保证网络设备的组播安全。 该方法包括：根据由服务器提供的节目频道列表信息获得授权的多播地址列表; 接收由用户终端设备发送的IGMP分组请求所携带的组播地址; 根据组播地址列表验证IGMP报文请求中的组播地址; 以及向所述用户终端设备发送与所述经过验证的多播地址相对应的媒体数据流。 本发明的解决方案适用于实现网络设备组播的安全性。