公开(公告)号：US07522602B2

公开(公告)日：2009-04-21

申请号：US11354071

申请日：2006-02-15

申请人： Takeki Yazaki ,  Yuichi Ishikawa

发明人： Takeki Yazaki ,  Yuichi Ishikawa

IPC分类号： H04L12/28 ,  H04J1/16 ,  G08C15/00 ,  G06F11/00 ,  G01R31/08

CPC分类号： H04L47/32 ,  H04L47/10 ,  H04L47/11 ,  H04L47/20

摘要： A packet transfer apparatus having: a flow detector 30 for identifying a flow to which an input packet belongs from header information of the input packet and outputting a flow bundle identifier peculiar to the identified flow or a flow bundle identifier common to the identified flow and at least another flow; and a controller 40 having an information table 43 including a plurality of information entries corresponding to the flow bundle identifier, for reading out one of the information entries from the information table on the basis the flow bundle identifier received from the flow detector performing a predetermined computing process.

摘要翻译： 一种分组传送装置，具有：流量检测器30，用于从输入分组的头信息中识别输入分组所属的流，并输出所识别的流特有的流束标识符或所识别的流共享的流束标识符， 至少另一个流程; 以及控制器40，其具有信息表43，信息表43包括与流束标识符对应的多个信息条目，用于基于从流量检测器接收到的流束标识符从信息表中读出信息表中的一个，执行预定计算 处理。

公开(公告)号：US07286535B2

公开(公告)日：2007-10-23

申请号：US10215846

申请日：2002-08-12

申请人： Yuichi Ishikawa ,  Takeki Yazaki

发明人： Yuichi Ishikawa ,  Takeki Yazaki

IPC分类号： H04L12/28 ,  H04L12/54

CPC分类号： H04L47/2441 ,  H04L47/10 ,  H04L49/90

摘要： A flow classifier having a flow CAM having plural flow entries, a search key generator for generating a search key of a format which differs by a flow condition, and a table holding a flow search result corresponding to an address of respective flow entry of CAM, in which access is made to CAM by the search key of a variable format including at least one header information item extracted from a packet header and the flow search result is obtained from the table in accordance with the address of the flow entry coinciding with the search key outputted from CAM to thereby constitute high speed formation of flow classifying by a variety of flow conditions.

摘要翻译： 一种流分类器，具有多个流条目的流CAM，用于生成不同于流条件的格式的搜索关键字的搜索关键字生成器，以及保存与CAM的各个流入口的地址对应的流搜索结果的表， 其中通过包括从分组报头提取的至少一个报头信息项的可变格式的搜索关键字对CAM进行访问，并且根据与搜索一致的流入口的地址从表中获得流搜索结果 键从CAM输出，从而构成通过各种流动条件分流的高速形成。

公开(公告)号：US07031313B2

公开(公告)日：2006-04-18

申请号：US10067775

申请日：2002-02-08

申请人： Takeki Yazaki ,  Yuichi Ishikawa

发明人： Takeki Yazaki ,  Yuichi Ishikawa

IPC分类号： H04L12/28 ,  H04J1/16 ,  G08C15/00 ,  G06F11/00 ,  G01R31/08

CPC分类号： H04L47/32 ,  H04L47/10 ,  H04L47/11 ,  H04L47/20

摘要： A packet transfer apparatus having: a flow detector 30 for identifying a flow to which an input packet belongs from header information of the input packet and outputting a flow bundle identifier peculiar to the identified flow or a flow bundle identifier common to the identified flow and at least another flow; and a controller 40 having an information table 43 including a plurality of information entries corresponding to the flow bundle identifier, for reading out one of the information entries from the information table on the basis of the flow bundle identifier received from the flow detector and performing a predetermined computing process.

公开(公告)号：US20100110889A1

公开(公告)日：2010-05-06

申请号：US12654922

申请日：2010-01-08

申请人： Takeki Yazaki ,  Yuichi Ishikawa

发明人： Takeki Yazaki ,  Yuichi Ishikawa

IPC分类号： H04L12/26

CPC分类号： H04L47/10 ,  H04L43/0894 ,  H04L47/20 ,  H04L47/2408 ,  H04L47/2441 ,  H04L47/32

摘要： A policing device having a table storing monitored bandwidth, packet history information for each importance level, and the allocation weight of the monitored bandwidth for each importance level, a policing table control circuit for reading out these items of information into each storage of a policing unit when a packet is inputted, and a calculation unit for judging the bandwidth of the input packet as being conformant or non-conformant to the contract on the basis of these items of information, thereby to control the bandwidth at each importance level.

公开(公告)号：US20080298234A1

公开(公告)日：2008-12-04

申请号：US12219981

申请日：2008-07-31

申请人： Yuichi Ishikawa ,  Takeki Yazaki ,  Takeshi Aimoto

发明人： Yuichi Ishikawa ,  Takeki Yazaki ,  Takeshi Aimoto

IPC分类号： G06F11/00

CPC分类号： H04L47/20 ,  H04L47/10 ,  H04L47/12 ,  H04L47/21 ,  H04L47/22 ,  H04L47/2458 ,  H04L47/32 ,  H04L47/41 ,  Y02D50/30

摘要： In a bandwidth policing apparatus which accommodates a large number of user groups, bandwidth policing for each user group is performed at high speed. When there is any extra bandwidth in bandwidth for a user group, the contracted committed information rate for each user is guaranteed invariably while using this effectively. The bandwidth policing apparatus accumulates packets of a plurality of user groups under bandwidth policing in the same packet accumulate FIFO. Also, for a packet which does not exceed the contracted bandwidth for each user, the contracted bandwidth for each user is guaranteed by deciding that the packet does not exceed the contracted bandwidth for each user group.

摘要翻译： 在容纳大量用户组的带宽监管装置中，高速执行每个用户组的带宽管理。 当用户组的带宽有任何额外的带宽时，每个用户的签约承诺信息速率在使用这个时是有效保证的。 带宽监管装置在相同的分组累加FIFO中累积多个用户组的带宽管理的分组。 此外，对于不超过每个用户的合同带宽的分组，通过确定分组不超过每个用户组的合同带宽来保证每个用户的合同带宽。

公开(公告)号：US20050122906A1

公开(公告)日：2005-06-09

申请号：US11000881

申请日：2004-12-02

申请人： Takeki Yazaki ,  Yuichi Ishikawa

发明人： Takeki Yazaki ,  Yuichi Ishikawa

IPC分类号： H04L12/813 ,  H04L1/00 ,  H04L12/26

CPC分类号： H04L47/10 ,  H04L43/0894 ,  H04L47/20 ,  H04L47/2408 ,  H04L47/2441 ,  H04L47/32

摘要： A policing device having a table storing monitored bandwidth, packet history information for each importance level, and the allocation weight of the monitored bandwidth for each importance level, a policing table control circuit for reading out these items of information into each storage of a policing unit when a packet is inputted, and a calculation unit for judging the bandwidth of the input packet as being conformant or non-conformant to the contract on the basis of these items of information, thereby to control the bandwidth at each importance level.

摘要翻译： 具有存储监视带宽的表的监管装置，每个重要性级别的分组历史信息以及针对每个重要性级别的被监控带宽的分配权重;管理表控制电路，用于将这些信息项读出到管理单元的每个存储器中 当输入分组时，以及计算单元，用于根据这些信息项来判断输入分组的带宽是否符合合同，从而控制每个重要性级别的带宽。

公开(公告)号：US20050025158A1

公开(公告)日：2005-02-03

申请号：US10874549

申请日：2004-06-24

申请人： Yuichi Ishikawa ,  Takeki Yazaki ,  Takeshi Aimoto

发明人： Yuichi Ishikawa ,  Takeki Yazaki ,  Takeshi Aimoto

IPC分类号： H04L12/813 ,  H04L12/28 ,  H04L12/803 ,  H04L12/819 ,  H04L12/823 ,  H04L12/833

CPC分类号： H04L47/20 ,  H04L47/10 ,  H04L47/12 ,  H04L47/21 ,  H04L47/22 ,  H04L47/2458 ,  H04L47/32 ,  H04L47/41 ,  Y02D50/30

摘要： In a bandwidth policing apparatus which accommodates a large number of user groups, bandwidth policing for each user group is performed at high speed. When there is any extra bandwidth in bandwidth for a user group, the contracted committed information rate for each user is guaranteed invariably while using this effectively. The bandwidth policing apparatus accumulates packets of a plurality of user groups under bandwidth policing in the same packet accumulate FIFO. Also, for a packet which does not exceed the contracted bandwidth for each user, the contracted bandwidth for each user is guaranteed by deciding that the packet does not exceed the contracted bandwidth for each user group.

摘要翻译： 在容纳大量用户组的带宽监管装置中，高速执行每个用户组的带宽管理。 当用户组的带宽有任何额外的带宽时，每个用户的签约承诺信息速率在使用这个时是有效保证的。 带宽监管装置在相同的分组累加FIFO中累积多个用户组的带宽管理的分组。 此外，对于不超过每个用户的合同带宽的分组，通过确定分组不超过每个用户组的合同带宽来保证每个用户的合同带宽。

公开(公告)号：US20140016461A1

公开(公告)日：2014-01-16

申请号：US14006107

申请日：2012-02-08

申请人： Yuichi Ishikawa ,  Takeki Yazaki

发明人： Yuichi Ishikawa ,  Takeki Yazaki

IPC分类号： H04L12/801

CPC分类号： H04L47/35 ,  H04L47/12 ,  H04L47/17 ,  H04L47/31 ,  H04L47/40

摘要： When a delay between a packet relay device and a receiving terminal increases, congestion notifications are delayed, and communication quality declines. When a flow is assessed to be in a congestion state, a packet delay device overwrites, within a packet header of an acknowledgement packet for the flow which is received thereafter from a receiving terminal, a field which denotes a network congestion state with a value which denotes that a congestion state is in effect, and transmits same as an acknowledgement packet. It is thus possible to issue a congestion notification over a path from the packet relay device to the receiving terminal, eliminating a congestion notification path from the packet relay device to the receiving terminal and from the receiving terminal to the packet relay device, facilitating avoiding a decline in communication quality even if the delay between the packet relay device and the receiving terminal increases.

摘要翻译： 当分组中继设备和接收终端之间的延迟增加时，拥塞通知被延迟，并且通信质量下降。 当流量被评估为处于拥塞状态时，分组延迟装置在来自接收终端的此后接收到的流的确认分组的分组报头内覆盖表示网络拥塞状态的字段，其值为 表示拥塞状态有效，并且发送与确认分组相同。 因此，可以通过从分组中继装置到接收终端的路径发布拥塞通知，消除从分组中继装置到接收终端以及从接收终端到分组中继装置的拥塞通知路径，有利于避免 即使分组中继设备和接收终端之间的延迟增加，通信质量下降。

公开(公告)号：US08331242B2

公开(公告)日：2012-12-11

申请号：US12654922

申请日：2010-01-08

申请人： Takeki Yazaki ,  Yuichi Ishikawa

发明人： Takeki Yazaki ,  Yuichi Ishikawa

IPC分类号： H04J3/16

CPC分类号： H04L47/10 ,  H04L43/0894 ,  H04L47/20 ,  H04L47/2408 ,  H04L47/2441 ,  H04L47/32

摘要： A policing device having a table storing monitored bandwidth, packet history information for each importance level, and the allocation weight of the monitored bandwidth for each importance level, a policing table control circuit for reading out these items of information into each storage of a policing unit when a packet is inputted, and a calculation unit for judging the bandwidth of the input packet as being conformant or non-conformant to the contract on the basis of these items of information, thereby to control the bandwidth at each importance level.

摘要翻译： 具有存储监视带宽的表的监管装置，每个重要性级别的分组历史信息以及针对每个重要性级别的被监控带宽的分配权重;管理表控制电路，用于将这些信息项读出到管理单元的每个存储器中 当输入分组时，以及计算单元，用于根据这些信息项来判断输入分组的带宽是否符合合同，从而控制每个重要性级别的带宽。

公开(公告)号：US07653062B2

公开(公告)日：2010-01-26

申请号：US11636826

申请日：2006-12-11

申请人： Takeki Yazaki ,  Yuichi Ishikawa

发明人： Takeki Yazaki ,  Yuichi Ishikawa

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L47/2408 ,  H04L29/06 ,  H04L45/7453 ,  H04L47/10 ,  H04L47/20 ,  H04L47/2441 ,  H04L47/2483 ,  H04L49/205 ,  H04L49/3009 ,  H04L49/602 ,  H04L69/22

摘要： A packet forwarding apparatus which quickly selects a plurality of control information entries to be applied according to header information of an input packet and concurrently performs various the header processing functions. The packet forwarding apparatus comprises a flow retrieval unit which compares header information of the input packet with plural sets of flow identification conditions and concurrently outputs various flow identifiers appropriate to the input packet, various header processing units corresponding to the flow identifiers, and a packet forwarding control unit for controlling forwarding of input packets according to control information outputted from at least one of the header processing units. While each of the header processing units has an information table containing plural information entries, reads a single information entry from the information table according to the flow identifier outputted from the flow retrieval unit, and executes a prescribed arithmetic operation.

摘要翻译： 一种分组转发装置，其根据输入分组的报头信息快速选择要应用的多个控制信息条目，并且同时执行各种报头处理功能。 分组转发装置包括流检索单元，其将输入分组的报头信息与多组流标识条件进行比较，并且同时输出适合于输入分组的各种流标识符，对应于流标识符的各种报头处理单元，以及分组转发 控制单元，用于根据从头部处理单元中的至少一个输出的控制信息来控制输入分组的转发。 虽然每个标题处理单元具有包含多个信息条目的信息表，但是根据从流检索单元输出的流标识符从信息表读取单个信息条目，并执行规定的算术运算。