公开(公告)号：US20080092213A1

公开(公告)日：2008-04-17

申请号：US11926729

申请日：2007-10-29

申请人： Jiahong Wei ,  Jun Li ,  Wumao Chen

发明人： Jiahong Wei ,  Jun Li ,  Wumao Chen

IPC分类号： G06F21/20

CPC分类号： H04L63/08 ,  H04L61/2015 ,  H04L63/0892

摘要： A method, a system and an authentication server for realizing a secure assignment of a DHCP address are disclosed. The method includes: sending a DHCP Discovery message via an access network; obtaining the identification information of the DHCP client and performing an authenticating to the DHCP client based on the identification information; and only assigning the address to the DHCP client has passed the authentication. Therefore, in the present invention, access authentication may be performed on a subscriber according to location information, and IP address is only assigned to the valid subscriber and terminal. Therefore, the security of the address assignment in DHCP mode may be enhanced greatly. Moreover, in the present invention, addresses may be managed by an AAA server unitedly, or the addresses may be assigned after being authenticated by the AAA server successfully.

摘要翻译： 公开了一种用于实现DHCP地址的安全分配的方法，系统和认证服务器。 该方法包括：通过接入网发送DHCP发现消息; 获取DHCP客户端的识别信息，并根据识别信息对DHCP客户端进行认证; 并且仅将地址分配给DHCP客户端已经通过了认证。 因此，在本发明中，可以根据位置信息对用户进行访问认证，并且仅将IP地址分配给有效的用户和终端。 因此，可以大大提高DHCP模式下的地址分配的安全性。 此外，在本发明中，地址可以由AAA服务器统一管理，或者可以在AAA服务器成功认证之后分配地址。

公开(公告)号：US08484388B2

公开(公告)日：2013-07-09

申请号：US13469956

申请日：2012-05-11

申请人： Wumao Chen

发明人： Wumao Chen

IPC分类号： G06F13/00

摘要： A data transmission method is provided, which includes: obtaining a current queue length of a queue corresponding to an output port; when the current queue length meets a back-pressure requirement, determining a back-pressure priority corresponding to the current queue length according to the current queue length and a mapping relationship between a preset queue length and the back-pressure priority, and generating back-pressure information, where the back-pressure information inhibits a line card from sending data with a data priority less than or equal to the back-pressure priority to the output port; and sending the back-pressure information to a line card.

公开(公告)号：US20120254483A1

公开(公告)日：2012-10-04

申请号：US13469956

申请日：2012-05-11

申请人： Wumao Chen

发明人： Wumao Chen

IPC分类号： G06F3/00

CPC分类号： H04L49/506 ,  H04L47/24 ,  H04L47/266 ,  H04L47/29 ,  H04L47/30

摘要： A data transmission method is provided, which includes: obtaining a current queue length of a queue corresponding to an output port; when the current queue length meets a back-pressure requirement, determining a back-pressure priority corresponding to the current queue length according to the current queue length and a mapping relationship between a preset queue length and the back-pressure priority, and generating back-pressure information, where the back-pressure information inhibits a line card from sending data with a data priority less than or equal to the back-pressure priority to the output port; and sending the back-pressure information to a line card.

摘要翻译： 提供了一种数据传输方法，包括：获取与输出端口对应的队列的当前队列长度; 当当前队列长度满足背压要求时，根据当前队列长度和预设队列长度与背压优先级之间的映射关系确定与当前队列长度对应的背压优先级， 压力信息，其中背压信息禁止线卡将数据优先级小于或等于背压优先级的数据发送到输出端口; 并将背压信息发送到线路卡。

公开(公告)号：US08750323B2

公开(公告)日：2014-06-10

申请号：US13348106

申请日：2012-01-11

申请人： Wumao Chen ,  Dajun Zang

发明人： Wumao Chen ,  Dajun Zang

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L49/3045 ,  H04L49/101 ,  H04L49/254 ,  H04L49/3027 ,  H04L49/508

摘要： A method and structure for switching data is provided. An output port scheduler obtains state information of VOQs and available state information of input port data channels and output port buffers. The output port scheduler sends scheduling request information to a FIC of an input port whose input port data channel is ready in input ports corresponding to non-empty VOQs pointing to an output port. After receiving the scheduling request information sent by the output port schedulers, the FIC of the selected input port selects to respond to a scheduling request of one output port scheduler, and sends the VOQ pointing to the output port in the selected input port to the output port buffer. The output port scheduler schedules the VOQ received by the output port buffer out of a switch chip. Buffer resources are saved and the switching performance is improved.

摘要翻译： 提供了一种用于切换数据的方法和结构。 输出端口调度器获取VOQ的状态信息和输入端口数据信道和输出端口缓冲器的可用状态信息。 输出端口调度器向对应于指向输出端口的非空VOQ的输入端口中的输入端口数据信道准备就绪的输入端口的FIC发送调度请求信息。 在接收到输出端口调度器发送的调度请求信息后，所选输入端口的FIC选择响应一个输出端口调度器的调度请求，并将指向所选输入端口的输出端口的VOQ发送到输出端 端口缓冲区 输出端口调度器将由输出端口缓冲器接收的VOQ调出交换芯片。 保存缓冲资源，提高交换性能。

公开(公告)号：US07756147B2

公开(公告)日：2010-07-13

申请号：US12010691

申请日：2008-01-29

申请人： Shifa Zhang ,  Zhijun Qu ,  Wumao Chen ,  Qiao Li

发明人： Shifa Zhang ,  Zhijun Qu ,  Wumao Chen ,  Qiao Li

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L49/354

摘要： The present invention provides a VLAN-based data packet transmission method and an Ethernet bridge device. The method includes: learning a member port corresponding to a VLAN according to a data packet received by an Ethernet bridge device, and storing a correspondence between a VLAN and the learnt member port; and forwarding the data packet by the Ethernet bridge device according to the correspondence between each VLAN and its member port that is stored.

摘要翻译： 本发明提供了一种基于VLAN的数据分组传输方法和以太网桥接设备。 该方法包括：根据以太网桥设备收到的数据包学习与VLAN对应的成员端口，并存储VLAN与学习成员端口的对应关系; 并根据存储的每个VLAN与其成员端口之间的对应关系，通过以太网桥设备转发数据包。

公开(公告)号：US07664053B2

公开(公告)日：2010-02-16

申请号：US11771044

申请日：2007-06-29

申请人： Wumao Chen ,  Yong Luo ,  Dingbo Cao ,  Bo Ke ,  Meng Wu

发明人： Wumao Chen ,  Yong Luo ,  Dingbo Cao ,  Bo Ke ,  Meng Wu

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L12/54 ,  H04J3/26 ,  G06F15/16 ,  G06F15/177

CPC分类号： H04L12/185 ,  H04L12/2861 ,  H04L12/2898 ,  H04M11/062

摘要： Embodiments of the present invention provide a method and a system for implementing multicast using a slave block in DSL access technique. Several slave blocks are cascaded with a master block accessed to the DSL. The master block and slave block are respectively connected with DSL users via RTUs, and access an uplink via a network interface of the master block. The slave block is configured to support the IGMP proxy or the IGMP snooping so as to implement multicast function independently. This invention overcomes the shortcomings including the heavy burden on the master block, low efficiency and serious waste in bandwidth resulting from the fact that the operation of the slave block multicast member is implemented in the master block, thus increasing the efficiency of multicast and saving bandwidth of the master block.

摘要翻译： 本发明的实施例提供了一种在DSL接入技术中使用从属块实现多播的方法和系统。 几个从站块与被访问到DSL的主站级联。 主模块和从模块分别通过RTU与DSL用户连接，并通过主模块的网络接口访问上行链路。 从站块配置为支持IGMP代理或IGMP监听，以便独立实现组播功能。 本发明克服了在主块中实现主块的操作，从而提高组播效率和节省带宽的缺点，包括主块的重负载，低带宽和严重的带宽浪费 的主块。

公开(公告)号：US08549193B2

公开(公告)日：2013-10-01

申请号：US13469956

申请日：2012-05-11

申请人： Wumao Chen

发明人： Wumao Chen

IPC分类号： G06F13/00

CPC分类号： H04L49/506 ,  H04L47/24 ,  H04L47/266 ,  H04L47/29 ,  H04L47/30

摘要： A data transmission method is provided, which includes: obtaining a current queue length of a queue corresponding to an output port; when the current queue length meets a back-pressure requirement, determining a back-pressure priority corresponding to the current queue length according to the current queue length and a mapping relationship between a preset queue length and the back-pressure priority, and generating back-pressure information, where the back-pressure information inhibits a line card from sending data with a data priority less than or equal to the back-pressure priority to the output port; and sending the back-pressure information to a line card.

摘要翻译： 提供了一种数据传输方法，包括：获取与输出端口对应的队列的当前队列长度; 当当前队列长度满足背压要求时，根据当前队列长度和预设队列长度与背压优先级之间的映射关系确定与当前队列长度对应的背压优先级， 压力信息，其中背压信息禁止线卡将数据优先级小于或等于背压优先级的数据发送到输出端口; 并将背压信息发送到线路卡。

公开(公告)号：US20120106564A1

公开(公告)日：2012-05-03

申请号：US13348106

申请日：2012-01-11

申请人： Wumao Chen ,  Dajun Zang

发明人： Wumao Chen ,  Dajun Zang

IPC分类号： H04L12/56

CPC分类号： H04L49/3045 ,  H04L49/101 ,  H04L49/254 ,  H04L49/3027 ,  H04L49/508

摘要： A method and structure for switching data is provided. An output port scheduler obtains state information of VOQs and available state information of input port data channels and output port buffers. The output port scheduler sends scheduling request information to a FIC of an input port whose input port data channel is ready in input ports corresponding to non-empty VOQs pointing to an output port. After receiving the scheduling request information sent by the output port schedulers, the FIC of the selected input port selects to respond to a scheduling request of one output port scheduler, and sends the VOQ pointing to the output port in the selected input port to the output port buffer. The output port scheduler schedules the VOQ received by the output port buffer out of a switch chip. Buffer resources are saved and the switching performance is improved.

摘要翻译： 提供了一种用于切换数据的方法和结构。 输出端口调度器获取VOQ的状态信息和输入端口数据信道和输出端口缓冲器的可用状态信息。 输出端口调度器向对应于指向输出端口的非空VOQ的输入端口中的输入端口数据信道准备就绪的输入端口的FIC发送调度请求信息。 在接收到输出端口调度器发送的调度请求信息后，所选输入端口的FIC选择响应一个输出端口调度器的调度请求，并将指向所选输入端口的输出端口的VOQ发送到输出端 端口缓冲区 输出端口调度器将由输出端口缓冲器接收的VOQ调出交换芯片。 保存缓冲资源，提高交换性能。

公开(公告)号：US20080205296A1

公开(公告)日：2008-08-28

申请号：US12010691

申请日：2008-01-29

申请人： Shifa Zhang ,  Zhijun Qu ,  Wumao Chen ,  Qiao Li

发明人： Shifa Zhang ,  Zhijun Qu ,  Wumao Chen ,  Qiao Li

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L49/354

摘要： The present invention provides a VLAN-based data packet transmission method and an Ethernet bridge device. The method includes: learning a member port corresponding to a VLAN according to a data packet received by an Ethernet bridge device, and storing a correspondence between a VLAN and the learnt member port; and forwarding the data packet by the Ethernet bridge device according to the correspondence between each VLAN and its member port that is stored. In the invention, the storage space of MAC address table of the Ethernet bridge device only needs to meet the requirement on the MAC address of its local user, thus the requirement of the access convergence network on the storage space of the MAC address table of the Ethernet bridge device may be lowered. According to the invention, the correspondence between the VLAN and the member port stored in the Ethernet bridge device is only related to the number of VLANs in the network, regardless of the number of users accessing the network, so that more users can access the access convergence network, which is advantageous for expanding the network. Therefore, the networking cost of the access convergence network can be lowered.

摘要翻译： 本发明提供了一种基于VLAN的数据分组传输方法和以太网桥接设备。 该方法包括：根据以太网桥设备收到的数据包学习与VLAN对应的成员端口，并存储VLAN与学习成员端口的对应关系; 并根据存储的每个VLAN与其成员端口之间的对应关系，通过以太网桥设备转发数据包。 在本发明中，以太网桥设备的MAC地址表的存储空间只需要满足本地用户的MAC地址的需求，因此接入融合网络对MAC地址表的存储空间的要求 以太网桥设备可能会降低。 根据本发明，无论接入网络的用户数量如何，VLAN与存储在以太网桥设备中的成员端口之间的对应关系与网络中的VLAN数量有关，因此更多的用户可以访问该接入 融合网络，有利于扩展网络。 因此，可以降低接入融合网络的组网成本。

公开(公告)号：US20080123690A1

公开(公告)日：2008-05-29

申请号：US11770913

申请日：2007-06-29

申请人： Zhanfeng Wang ,  Rong Cheng ,  Wumao Chen

发明人： Zhanfeng Wang ,  Rong Cheng ,  Wumao Chen

IPC分类号： H04J3/16

CPC分类号： H04L41/0896 ,  H04L12/2872 ,  H04L12/2876 ,  H04L47/15 ,  H04L47/70 ,  H04L47/781 ,  H04L47/801 ,  H04L47/825

摘要： An embodiment of the invention provides a method for guaranteeing QoS of services in a broadband access network includes: establishing a plurality of logical channels between a plurality of subscriber access devices and a Broadband Access Server (BAS) respectively, allocating bandwidth resources for each of the plurality of logical channels; determining whether to allow a real-time service to access the broadband access network according to bandwidth resources occupation information of the plurality of logical channels. Embodiments of the invention provides a broadband access network and device for guaranteeing QoS of services as well.

摘要翻译： 本发明的一个实施例提供了一种用于保证宽带接入网中服务质量的方法，包括：分别在多个用户接入设备和宽带接入服务器（BAS）之间建立多个逻辑信道，为每个用户接入设备 多个逻辑信道; 根据多个逻辑信道的带宽资源占用信息，确定是否允许实时业务接入宽带接入网。 本发明的实施例还提供了用于保证服务的QoS的宽带接入网络和设备。