公开(公告)号：US09215078B2

公开(公告)日：2015-12-15

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 ,  H04L12/46

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：US08813115B2

公开(公告)日：2014-08-19

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: H04N7/16 ,  G06F3/00

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。

公开(公告)号：US08848512B2

公开(公告)日：2014-09-30

申请号：US14011319

申请日：2013-08-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yu Qin ,  Junjun Song ,  Youxi Lin ,  Qinghui Meng ,  Zhikun Huo

IPC: H04L12/16 ,  H04L12/18 ,  H04L12/761 ,  H04L12/24

CPC classification number: H04L41/0668 ,  H04L12/1877 ,  H04L45/16 ,  H04L45/28

Abstract: The present invention discloses a rendezvous point convergence method and apparatus and relates to the field of communications, to solve a problem that an entire network cannot work normally for a long time because a network device cannot send a candidate RP advertisement message to a bootstrap router BSR when the network device served as a rendezvous point RP is entirely faulty. In the present invention, when a route of an original working RP is unreachable, a first node receives a bootstrap message sent by a BSR, where Holdtime of the original working RP carried in the bootstrap message is 0; and the first node disables the original working RP and enables a candidate RP as a new working RP according to the bootstrap message. The present invention is applicable to the field of communications to implement rendezvous point convergence.

Abstract translation: 本发明公开了一种会合点收敛方法及装置，涉及到通信领域，解决了由于网络设备不能向自举路由器BSR发送候选RP广播消息，整个网络长时间不能正常工作的问题 当作为会合点RP的网络设备是完全错误的。 在本发明中，当原始工作RP的路由不可达时，第一节点接收由BSR发送的引导消息，其中在自举消息中携带的原始工作RP的保持时间为0; 并且第一个节点禁用原始工作RP，并根据引导消息使候选RP成为新的工作RP。 本发明适用于实现会合点收敛的通信领域。