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1. 发明授权

US06781994B1 Distributing ATM cells to output ports based upon destination information using ATM switch core and IP forwarding 失效
标题翻译：使用ATM交换机核心和IP转发，基于目的地信息将ATM信元分配到输出端口
公开(公告)号：US06781994B1
公开(公告)日：2004-08-24
申请号：US09367956
申请日：1999-08-24
申请人： Kazuo Nogami , Akihiro Horiguchi , Keitaro Hirai , Kazuaki Mori , Takashi Ikeda , Junichi Takahashi , Tohru Kishigami , Masanori Watanabe
发明人： Kazuo Nogami , Akihiro Horiguchi , Keitaro Hirai , Kazuaki Mori , Takashi Ikeda , Junichi Takahashi , Tohru Kishigami , Masanori Watanabe
IPC分类号： H04L1256
CPC分类号： H04L47/6225 , H04L12/5601 , H04L47/50 , H04L47/621 , H04L47/6215 , H04L49/108 , H04L49/256 , H04L49/309 , H04L69/16 , H04L2012/5651 , H04L2012/5658 , H04L2012/5667
摘要： This invention has as its object to provide an ATM relay device which attains high-speed, large-capacity packet relaying by distributing the load on an IP forwarding unit without having to improve the operation speed, processing performance, and the like of an IP forwarding function. This invention has an ATM switch core (111) for distributing input ATM cells to corresponding ones of a plurality of output ports on the basis of their destination information. A plurality of IP forwarding units (120-1 to 120-n), which are provided in correspondence with the respective output ports of the ATM switch core (111) and have unique forwarding processing functions, execute predetermined forwarding processes for packets obtained by reassembling ATM cells input via the respective output ports. An SAR 121 assigns destination information that assumes different values in units of packets to ATM cells, which form each of packets having an identical address of those processed by the plurality of IP forwarding units (120-1 to 120-n). The ATM cells of a packet assigned identical destination information by the SAR 121 are stored in a PerVC queuing unit 112 by a predetermined volume, and are output in the format that stores the ATM cells by the predetermined volume.
摘要翻译：本发明的目的是提供一种通过在IP转发单元上分配负载来实现高速，大容量分组中继的ATM中继设备，而不必提高IP转发的操作速度，处理性能等功能。本发明具有ATM交换机核心（111），用于根据其目的地信息将输入的ATM信元分配到多个输出端口中的相应的输入端口。与ATM交换机核心（111）的各个输出端口相对应并且具有唯一的转发处理功能的多个IP转发单元（120-1至120-n）对通过重新组装获得的分组执行预定的转发过程 ATM信元通过相应的输出端口输入。 SAR 121将以分组为单位的不同值的目的地信息分配给ATM信元，ATM信元形成由多个IP转发单元（120-1〜120-n）处理的那些具有相同地址的每个分组。由SAR121分配相同目的地信息的分组的ATM信元以预定的音量存储在PerVC排队单元112中，并以按预定音量存储ATM信元的格式输出。

2. 发明授权

US06480468B1 Repeater 失效
标题翻译：中继器
公开(公告)号：US06480468B1
公开(公告)日：2002-11-12
申请号：US09308132
申请日：1999-05-14
申请人： Tohru Kishigami , Kazuo Nogami , Shigeo Matsuzawa , Kenichi Nagami
发明人： Tohru Kishigami , Kazuo Nogami , Shigeo Matsuzawa , Kenichi Nagami
IPC分类号： H04L1256
CPC分类号： H04L12/5601 , H04L43/00 , H04L43/0894 , H04L43/16 , H04L45/00 , H04L45/38 , H04L45/40 , H04L45/745 , H04L45/7453 , H04L49/251 , H04L49/256 , H04L49/257 , H04L49/30 , H04L49/3009 , H04L49/602 , H04L2012/5667 , H04Q11/0478
摘要： The present invention aims at making the cut-through trigger variable in accordance with the traffic environment, thereby increasing the cut-through traffic to enhance the efficiency of communication. In the trigger filtering unit (16A), the number of transfers of the hop-by-hop packet meeting each of a plurality of preset trigger conditions is counted. In the processor (15A), the rate of the traffic meeting each of trigger conditions to all the traffics of the hop-by-hop transfer is calculated in accordance with the count value, a trigger condition under which the rate exceeds the threshold value is selected as the cut-through trigger, and it is determined which of the cut-through transfer mode and the hop-by-hop transfer mode should be selected.
摘要翻译：本发明旨在根据交通环境使直通触发器变化，从而增加切入流量以提高通信效率。在触发滤波单元（16A）中，对满足多个预设触发条件中的每一个的逐跳分组的传送次数进行计数。在处理器（15A）中，根据计数值计算满足每一个触发条件的流量对所有的逐跳传输的流量的速率，速率超过阈值的触发条件是选择为直通触发，并且确定应该选择直通传输模式和逐跳传输模式中的哪一种。

3. 发明授权

US06633866B2 Data search apparatus and internetwork relay apparatus using data search apparatus 失效
标题翻译：数据搜索装置和使用数据搜索装置的网络中继装置
公开(公告)号：US06633866B2
公开(公告)日：2003-10-14
申请号：US09472239
申请日：1999-12-27
申请人： Tohru Kishigami
发明人： Tohru Kishigami
IPC分类号： G06F700
CPC分类号： H04L45/742 , H04L45/7453 , H04L49/602 , H04L69/18 , H04L69/22 , Y10S707/99931 , Y10S707/99933
摘要： Header data representing a frame form and a protocol is divided into each two bytes to set a plurality of search sequences, and, for each sequence, an entry comprising the divided two bytes serving as Key Data, a search identifier comprising Group number and Sequence number, and associative data representing the contents of search control is created. The entry is preliminarily registered in a protocol table. Each time when frame data is stored in a frame buffer, a search is performed in the protocol table using 2 bytes as a key positioned at a specific position of the frame data by a protocol analysis portion, and the search in the protocol table is repeated until a search is terminated according to the contents of the associative data read out from the protocol table by the search.
摘要翻译：表示帧形式和协议的报头数据被划分为每两个字节以设置多个搜索序列，并且对于每个序列，包括用作密钥数据的划分的两个字节的条目，包括组号和序列号的搜索标识符，并创建表示搜索控制内容的关联数据。该条目预先登记在协议表中。每当帧数据存储在帧缓冲器中时，通过协议分析部分在协议表中使用2字节作为位于帧数据的特定位置的密钥执行搜索，并且重复协议表中的搜索直到根据搜索从协议表读出的关联数据的内容终止搜索。

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