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1.发明公开Packet forwarding apparatus with a flow detection table 有权Paketversendegerätmit einer Flussnachweistabelle
公开(公告)号：EP0993153A1
公开(公告)日：2000-04-12
申请号：EP99117476.4
申请日：1999-09-10
CPC分类号： H04L12/46 , H04L29/06 , H04L45/00 , H04L45/54 , H04L45/60 , H04L45/745 , H04L47/50 , H04L47/6215 , H04L49/205 , H04L49/25 , H04L49/30 , H04L49/3009 , H04L49/90 , H04L49/901 , H04L49/9036 , H04L67/327 , H04L69/12 , H04L2012/5636 , H04Q11/0478
摘要： A packet forwarding apparatus provided with a plurality of line interface units, comprises a routing processing unit for referring to a routing table, based on header information of received packet to specify one of output lines to output the received packet, a flow detection unit for referring to an entry table, in which a plurality of entries with flow conditions and control information are registered, to retrieve control information defined by the entry with a flow condition which coincides with that of the header information of the received packet, and a packet forwarding unit for transferring the received packet to one of the line interface units connected to the output line specified by the routing processing unit. The entry table id divided into a plurality of subtables corresponding to the values of flow attributes associated with the received packets and the flow detection unit retrieves the control information from one of said subtables specified by the value of the flow attribute corresponding to the received packet.
摘要翻译： 具有多个线路接口单元的分组转发装置包括：路由处理单元，用于根据接收到的分组的头信息来参考路由表，以指定输出所述接收分组的输出行之一;流量检测单元，用于参考 将具有流条件和控制信息的多个条目登记到的条目表中，以与所接收的分组的标题信息一致的流条件来检索由条目定义的控制信息，以及分组转发单元 用于将接收的分组传送到连接到由路由处理单元指定的输出线路的线路接口单元之一。 入口表id被划分为与接收到的分组相关联的流属性的值对应的多个子表，并且流检测单元从与接收到的分组对应的流属性的值指定的所述子表之一中检索控制信息。
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2.发明公开
公开(公告)号：EP2148477A1
公开(公告)日：2010-01-27
申请号：EP09014315.7
申请日：2000-06-02
申请人： Hitachi Ltd.
发明人： Yazaki, Takeki , Aimoto, Takeshi
CPC分类号： H04L12/5602 , H04L2012/5636 , H04L2012/5651 , H04Q11/0478
摘要： A network system comprises first to third routers coupled in series. The first router transmits a first packet indicating a first priority or a second packet indicating a second priority higher than the first priority. The second router receives the first packet, determines whether or not the first priority of the first packet is to be changed or not on the basis of both a first bandwidth which is assigned for receiving, from the first router, a second packet which is indicating the second priority and a second bandwidth which is assigned for communicating a packet including the first packet and the second packet, changes the priority of the first packet if it is decided that its priority is to be changed, and transmits to the third router the packet of which the priority has been changed to the second priority from the first priority. The third router receives the packet transmitted from the second router.
摘要翻译： 网络系统包括串联耦合的第一至第三路由器。 第一路由器发送指示第一优先级的第一分组或指示高于第一优先级的第二优先级的第二分组。 第二路由器接收第一分组，基于分配给从第一路由器分配的第一分组的第二分组，指示第一分组的第一优先级是否要更改，确定第一分组的第一优先级是否被改变 第二优先级和分配用于传送包括第一分组和第二分组的分组的第二带宽如果确定其优先级被改变则改变第一分组的优先级，并且向第三路由器发送分组 其优先权已从第一优先权改为第二优先。 第三路由器接收从第二路由器发送的分组。
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公开(公告)号：EP1560373A2
公开(公告)日：2005-08-03
申请号：EP05008938.2
申请日：1999-09-10
申请人： Hitachi, Ltd.
CPC分类号： H04L12/46 , H04L29/06 , H04L45/00 , H04L45/54 , H04L45/60 , H04L45/745 , H04L47/50 , H04L47/6215 , H04L49/205 , H04L49/25 , H04L49/30 , H04L49/3009 , H04L49/90 , H04L49/901 , H04L49/9036 , H04L67/327 , H04L69/12 , H04L2012/5636 , H04Q11/0478
摘要： The invention relates to a packet forwarding apparatus provided with a plurality of line interface units (122) each connected to an input line (123) and an output line (123), comprising: a routing processing unit (111) for referring to a routing table, based on header information of each of packets received from the input lines by said line interface units (122), and specifying one of said output lines (123) from which the packet should be output; a common table for storing said plurality of entries therein; a list table (760; 860; 1060; 3560) for storing therein pointer addresses for accessing the entries lying within said common table, said list table being divided into a plurality of sub-list tables corresponding to the values of the specific flow attribute; a flow detection unit (112; 812; 1012; 3612) for retrieving, by referring to the common table, packet transfer control information defined by one of said entries of which the flow condition is satisfied with parameter values extracted from the header information of the received packet; and a packet forwarding unit for transferring said received packet to one of said line interface units connected to the output line specified by said routing processing unit; wherein said flow detection unit (112; 812; 1012; 3612) refers to one of said sub-list tables specified by the value of the specific flow attribute associated with each of said received packets to retrieve the entry having a flow condition satisfied with the header information of said received packet, based on pointer addresses stored in the specified sub-list table; and said packet forwarding unit controls the transfer of each of said received packets to one of said line interface units (123) in accordance with the packet transfer control information notified from said flow detection unit (112; 812; 1012; 3612).
摘要翻译： 本发明涉及一种设置有多个线路接口单元（122）的分组转发设备，每个线路接口单元（122）均连接到输入线路（123）和输出线路（123），包括：路由处理单元（111），用于参考路由 基于由所述线路接口单元（122）从所述输入线路接收到的每个分组的报头信息，并且指定应该从其输出所述分组的所述输出线路（123）中的一个输出线路; 用于在其中存储所述多个条目的公共表; 一个用于存储指针地址的列表表（760; 860; 1060; 3560），用于访问位于所述公用表中的条目，所述列表被分成多个子列表表，该表对应于特定流属性的值; 用于通过参考公共表来检索由其中流条件满足的所述条目之一定义的分组传输控制信息，该分组传输控制信息是从从 接收数据包; 以及分组转发单元，用于将所述接收到的分组传送到连接到由所述路由处理单元指定的输出线路的所述线路接口单元中的一个; 其中所述流量检测单元（112; 812; 1012; 3612）参考由与每个所述接收到的分组相关联的特定流属性的值指定的一个所述子列表表格，以检索具有满足 基于存储在指定的子列表表中的指针地址，确定所述接收到的分组的头部信息; 并且所述分组转发单元根据从所述流量检测单元（112; 812; 1012; 3612）通知的分组传送控制信息来控制所述接收的分组中的每一个到所述线路接口单元（123）中的一个的传送。
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公开(公告)号：EP0971511A2
公开(公告)日：2000-01-12
申请号：EP99113167.3
申请日：1999-07-07
申请人： Hitachi, Ltd.
发明人： Kohzuki, Kiyoshi , Aimoto, Takeshi , Yazaki, Takeki , Tanaka, Noriyuki , Yamamura, Yoshinori, 212 Hitachi-shibusawa-dai
CPC分类号： H04L12/5601 , H04L12/5602 , H04L47/22 , H04L47/2433 , H04L47/2441 , H04L47/50 , H04L47/522 , H04L47/627 , H04L2012/5651 , H04L2012/5652 , H04L2012/5679 , H04L2012/568 , H04Q11/0478
摘要： A traffic shaper comprises a cell buffer for temporarily storing an ATM cell arrived thereat, a first calculator for calculating an estimated cell sending time according to a VC contracted bandwidth, a second calculator for calculating an estimated cell sending time according to a VP contracted bandwidth, a binary tree VP sorting circuit for determining VP to be sent in top priority, a binary tree VC sorting circuit for determining VC to be sent in top priority, and a sending circuit for sending a cell in which the determined VP and VC are both brought to a transmittable state. The VP estimated sending time is revised according to the VC estimated sending time.
摘要翻译： 流量整形器包括用于临时存储到达该ATM信元的ATM信元的信元缓冲器，用于根据VC合同带宽计算估计信元发送时间的第一计算器，用于根据VP合同带宽计算估计信元发送时间的第二计算器， 用于确定要以最高优先级发送的VP的二叉树VP分类电路，用于确定要以最高优先级发送的VC的二叉树VC分类电路，以及用于发送确定的VP和VC两者的小区的发送电路 到可发送状态。 VP估计发送时间根据VC估计的发送时间进行修改。
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公开(公告)号：EP2139263A1
公开(公告)日：2009-12-30
申请号：EP09012940.4
申请日：2000-02-23
申请人： Hitachi Ltd.
发明人： Yazaki, Takeki , Aimoto, Takeshi
CPC分类号： H04L47/2441 , H04L47/10 , H04L47/2408 , H04L47/2458 , H04L47/50 , H04L47/522 , H04L47/6215 , H04L47/6225 , H04L47/623 , H04L49/90 , H04L49/9036 , H04L49/9042 , H04L2012/5651 , H04Q11/0478
摘要： The present invention relates to a router for transmitting a packet and a corresponding network system, wherein said router has plural modes to be applied to input packets. The plural modes include a first mode which is a mode that decides priority of the packet by at least one of the address information and the application information, and a third mode which is a mode that decides to rewrite the DS value by at least one of the address information and the application information. A control unit (112) of the router switches a mode to be applied to an input packet among the plural modes based on the packet header information of the input packet.
摘要翻译： 本发明涉及一种用于传输分组的路由器以及相应的网络系统，其中所述路由器具有多种应用于输入分组的模式。 所述多个模式包括第一模式和第三模式，所述第一模式是通过所述地址信息和所述应用信息中的至少一个决定所述分组的优先级的模式，所述第三模式是决定通过以下至少一项来重写所述DS值的模式： 地址信息和应用信息。 路由器的控制单元（112）基于输入分组的分组报头信息来切换要应用于多个模式中的输入分组的模式。
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公开(公告)号：EP1940094B1
公开(公告)日：2009-11-18
申请号：EP08005355.6
申请日：2000-06-02
申请人： Hitachi, Ltd.
发明人： Yazaki, Takeki , Aimoto, Takeshi
CPC分类号： H04L12/5602 , H04L2012/5636 , H04L2012/5651 , H04Q11/0478
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公开(公告)号：EP0971511A3
公开(公告)日：2005-09-21
申请号：EP99113167.3
申请日：1999-07-07
申请人： Hitachi, Ltd.
发明人： Kohzuki, Kiyoshi , Aimoto, Takeshi , Yazaki, Takeki , Tanaka, Noriyuki , Yamamura, Yoshinori, 212 Hitachi-shibusawa-dai
IPC分类号： H04L12/56
CPC分类号： H04L12/5601 , H04L12/5602 , H04L47/22 , H04L47/2433 , H04L47/2441 , H04L47/50 , H04L47/522 , H04L47/627 , H04L2012/5651 , H04L2012/5652 , H04L2012/5679 , H04L2012/568 , H04Q11/0478
摘要： A traffic shaper comprises a cell buffer for temporarily storing an ATM cell arrived thereat, a first calculator for calculating an estimated cell sending time according to a VC contracted bandwidth, a second calculator for calculating an estimated cell sending time according to a VP contracted bandwidth, a binary tree VP sorting circuit for determining VP to be sent in top priority, a binary tree VC sorting circuit for determining VC to be sent in top priority, and a sending circuit for sending a cell in which the determined VP and VC are both brought to a transmittable state. The VP estimated sending time is revised according to the VC estimated sending time.
摘要翻译： 流量整形器包括用于临时存储到达该ATM信元的ATM信元的信元缓冲器，用于根据VC合同带宽计算估计信元发送时间的第一计算器，用于根据VP合同带宽计算估计信元发送时间的第二计算器， 用于确定要以最高优先级发送的VP的二叉树VP分类电路，用于确定要以最高优先级发送的VC的二叉树VC分类电路，以及用于发送确定的VP和VC两者的小区的发送电路 到可发送状态。 VP估计发送时间根据VC估计的发送时间进行修改。
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公开(公告)号：EP2148477B1
公开(公告)日：2013-03-27
申请号：EP09014315.7
申请日：2000-06-02
申请人： Hitachi Ltd.
发明人： Yazaki, Takeki , Aimoto, Takeshi
CPC分类号： H04L12/5602 , H04L2012/5636 , H04L2012/5651 , H04Q11/0478
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公开(公告)号：EP0971511B1
公开(公告)日：2007-08-29
申请号：EP99113167.3
申请日：1999-07-07
申请人： Hitachi, Ltd.
发明人： Kohzuki, Kiyoshi , Aimoto, Takeshi , Yazaki, Takeki , Tanaka, Noriyuki , Yamamura, Yoshinori, 212 Hitachi-shibusawa-dai
IPC分类号： H04L12/56
CPC分类号： H04L12/5601 , H04L12/5602 , H04L47/22 , H04L47/2433 , H04L47/2441 , H04L47/50 , H04L47/522 , H04L47/627 , H04L2012/5651 , H04L2012/5652 , H04L2012/5679 , H04L2012/568 , H04Q11/0478
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10.发明公开
公开(公告)号：EP1058424A2
公开(公告)日：2000-12-06
申请号：EP00111053.5
申请日：2000-06-02
申请人： Hitachi, Ltd.
发明人： Yazaki, Takeki , Aimoto, Takeshi
CPC分类号： H04L12/5602 , H04L2012/5636 , H04L2012/5651 , H04Q11/0478
摘要： A bandwidth monitoring device for use in a network for transferring priority packets in preference to non priority packets as far as the amount of the priority packets is within a contract bandwidth established between a network user and a network operator, comprising a bandwidth check result decision unit (520, 1320) for detecting whether the bandwidth of the priority packets is less than the contract bandwidth, and a DSCP decision unit (530) for determining that a non priority packet may be transferred as a priority packet when the bandwidth of the priority packets is less than the contract bandwidth thereby to sufficiently use the contract bandwidth.
摘要翻译： 一种用于网络中的带宽监视设备，用于优先于非优先级分组传输优先级分组，直到所述优先级分组的数量在网络用户和网络运营商之间建立的合同带宽内，包括带宽检查结果决定单元 （520,1320），用于检测所述优先级分组的带宽是否小于所述合同带宽;以及DSCP决定单元（530），用于当所述优先级分组的带宽作为优先分组时，确定所述非优先分组可以作为优先分组传送 小于合同带宽，从而充分利用合同带宽。
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