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1. 发明授权

US06337862B1 Network switch with truncated trie look-up facility 失效
标题翻译：网络切换与截断的特里查询设备
公开(公告)号：US06337862B1
公开(公告)日：2002-01-08
申请号：US09573821
申请日：2000-05-18
申请人： Sorcha O'Callaghan , Edele O'Malley , Kevin Loughran , Christopher Gilbert
发明人： Sorcha O'Callaghan , Edele O'Malley , Kevin Loughran , Christopher Gilbert
IPC分类号： H04L1228
CPC分类号： H04L45/00 , H04L45/742
摘要： A network switch including a multiplicity of ports for the reception and forwarding of addressed data packets including network destination data and network source address data, and a forwarding database having a trie search facility organised in blocks of pointers, which are accessed by respective segments of a search key and identify in a last stage of a search forwarding data identifying each port from which a packet should be forwarded and in any stage of the search prior to the last stage a block of pointers, the switch including a device operable before the trie search facility is utilised for a given packet to compare a network destination address of the given packet with at least one stored address and when the network destination address matches the stored address to access the network source address data of the given packet for use as the search key.
摘要翻译：包括用于接收和转发包括网络目的地数据和网络源地址数据的寻址数据分组的多个端口的网络交换机，以及具有组织在指针块中的特里搜索设备的转发数据库，该转发数据库由搜索关键字并且在最后阶段识别识别要在其中转发数据包的每个端口的数据的最后阶段，并且在最后阶段之前的任何阶段中的指针块，所述交换机包括在特里搜索之前可操作的设备用于给定分组的设施用于将给定分组的网络目的地地址与至少一个存储的地址进行比较，并且当网络目的地地址与存储的地址匹配时，访问给定分组的网络源地址数据以用作搜索关键字。

2. 发明授权

US06804230B1 Communication device with forwarding database having a trie search facility 失效
标题翻译：具有转发数据库的通信设备具有特里搜索设备
公开(公告)号：US06804230B1
公开(公告)日：2004-10-12
申请号：US09432591
申请日：1999-11-03
申请人： Kevin Jennings , Edele O'Malley , Sorcha O'Callaghan , Kevin Loughran
发明人： Kevin Jennings , Edele O'Malley , Sorcha O'Callaghan , Kevin Loughran
IPC分类号： G06F1730
CPC分类号： H04L45/00 , H04L45/7453 , H04L49/3009 , H04L49/309 , H04Q11/0478 , Y10S707/99933
摘要： A communication device which includes a hardware trie search facility. At least part of a memory is divided into memory blocks, each of said blocks consisting of a multiplicity of locations, at least some of said locations each providing when accessed a pointer to another block and an indication of the size of the block. A shift register holds an address key, and a trie block is accessed using an address composed of a number of bits related to said indication of the size of the block. The key is shifted by said number of bits prior to a subsequent stage of the search. Part of the memory comprises an associated data table which includes entries of data enabling a packet to be forwarded and at least some locations in said blocks provide when accessed a pointer to an entry in the associated data table.
摘要翻译：一种包括硬件特里搜索设备的通信设备。存储器的至少一部分被分成存储器块，每个所述块由多个位置组成，当访问指向另一个块的指针时，至少一些所述位置中的每个提供，并且指示块的大小。移位寄存器保存地址密钥，并且使用由与块的大小的所述指示相关的多个位组成的地址访问特里块。密钥在搜索的后续阶段之前移位所述比特数。存储器的一部分包括相关联的数据表，其包括能够转发分组的数据的条目，并且当访问到所述相关联的数据表中的条目的指针时，所述块中的至少一些位置提供。

3. 发明申请

US20100158028A1 NETWORK SWITCH WITH MUTUALLY COUPLED LOOK-UP ENGINE AND NETWORK PROCESSOR 有权
标题翻译：网络交换机具有联机查看引擎和网络处理器
公开(公告)号：US20100158028A1
公开(公告)日：2010-06-24
申请号：US12715720
申请日：2010-03-02
申请人： Sorcha O'Callaghan , Neil O. Fanning , Kevin Jennings , Eugene O'Nell , Joseph N. Butler
发明人： Sorcha O'Callaghan , Neil O. Fanning , Kevin Jennings , Eugene O'Nell , Joseph N. Butler
IPC分类号： H04L12/56
CPC分类号： H04L49/3009 , H04L12/4641 , H04L49/309 , H04L49/354
摘要： A network switch includes a look-up engine for obtaining associated data in response to a header portion of a packet and an interlinked network processor such as a RISC for performing a processing function on the header portion or the associated data. Both look-up engine and the network processor may modify a destination port bitmask. The network processor may implement additional packet header processing required for replication or server load balancing.
摘要翻译：网络交换机包括用于响应于分组的报头部分获取相关联的数据的查找引擎和诸如用于在报头部分或相关联的数据上执行处理功能的诸如RISC的互连网络处理器。查找引擎和网络处理器都可以修改目标端口位掩码。网络处理器可以实现复制或服务器负载平衡所需的附加数据包头处理。

4. 发明授权

US07701941B2 Network switch with mutually coupled look-up engine and network processor 有权
标题翻译：网络交换机具有相互耦合的查找引擎和网络处理器
公开(公告)号：US07701941B2
公开(公告)日：2010-04-20
申请号：US09818670
申请日：2001-03-28
申请人： Sorcha O'Callaghan , Neil O Fanning , Kevin Jennings , Eugene O'Neill , Joseph N Butler
发明人： Sorcha O'Callaghan , Neil O Fanning , Kevin Jennings , Eugene O'Neill , Joseph N Butler
IPC分类号： H04L12/28
CPC分类号： H04L49/3009 , H04L12/4641 , H04L49/309 , H04L49/354
摘要： A network switch includes a look-up engine for obtaining associated data in response to a header portion of a packet and an interlinked network processor such as a RISC for performing a processing function on the header portion or the associated data. Both look-up engine and the network processor may modify a destination port bitmask. The network processor may implement additional packet header processing required for replication or server load balancing.
摘要翻译：网络交换机包括用于响应于分组的报头部分获取相关联的数据的查找引擎和诸如用于在报头部分或相关联的数据上执行处理功能的诸如RISC的互连网络处理器。查找引擎和网络处理器都可以修改目标端口位掩码。网络处理器可以实现复制或服务器负载平衡所需的附加数据包头处理。

5. 发明授权

US06504843B1 System and method for dynamically mapping a high speed link to a multiplicity of low speed trunked links 失效
标题翻译：将高速链路动态映射到多个低速中继链路的系统和方法
公开(公告)号：US06504843B1
公开(公告)日：2003-01-07
申请号：US09353606
申请日：1999-07-14
申请人： Con Cremin , Sorcha O'Callaghan , David Nolan , Raymond Beechinor , Richard A Gahan
发明人： Con Cremin , Sorcha O'Callaghan , David Nolan , Raymond Beechinor , Richard A Gahan
IPC分类号： H04L1228
CPC分类号： H04L47/621 , H04L45/745 , H04L47/50 , H04L47/521 , H04L47/6225 , H04L49/30 , H04L49/351 , H04L49/901
摘要： A method for distributing addressed data packets from an input channel to a multiplicity of packet queues includes receiving said addressed data packets and, responsive to first hashed addresses, distributing the addressed data packets to said queues in accordance with said first hashed addresses. A first hash function is applied to selected address data of each of said addressed data packets to produce said first hashed addresses. At the same time a succession of different hash functions is applied to said selected address data in each of the packets to produce second hashed addresses and occurrences of each of the second hashed addresses are counted so as to obtain for each of said different hash functions a respective one of a plurality of set of counts, each such set representing the distribution of said packets that would occur in said queues if the respective one of the different hash functions had been applied to said addressed data packets. The sets of counts are analyzed to determined which one of them represents a best distribution of said packets and the hash function associated with the best distribution is applied to incoming packets in place of the said first hash function.
摘要翻译：一种用于将寻址的数据分组从输入信道分配到多个分组队列的方法包括接收所述寻址的数据分组，并且响应于第一哈希地址，根据所述第一散列地址将寻址的数据分组分配到所述队列。第一散列函数被应用于每个所述寻址的数据分组的选择的地址数据以产生所述第一散列地址。同时，对每个分组中的所述选择的地址数据应用一系列不同的散列函数以产生第二散列地址，并对每个第二散列地址的出现进行计数，以便为每个所述不同的散列函数a 相应的多个计数集合中的一个，每个这样的集合表示如果不同散列函数中的相应一个已被应用于所述寻址的数据分组，则将在所述队列中发生的所述分组的分布。分析计数集合以确定其中哪一个表示所述分组的最佳分布，并且将与最佳分布相关联的散列函数应用于输入分组而不是所述第一哈希函数。

6. 发明授权

US08194672B2 Network switch with mutually coupled look-up engine and network processor 有权
标题翻译：网络交换机具有相互耦合的查找引擎和网络处理器
公开(公告)号：US08194672B2
公开(公告)日：2012-06-05
申请号：US12715720
申请日：2010-03-02
申请人： Sorcha O'Callaghan , Neil O Fanning , Kevin Jennings , Eugene O'Neill , Joseph N Butler
发明人： Sorcha O'Callaghan , Neil O Fanning , Kevin Jennings , Eugene O'Neill , Joseph N Butler
IPC分类号： H04L12/28
CPC分类号： H04L49/3009 , H04L12/4641 , H04L49/309 , H04L49/354
摘要： A network switch includes a look-up engine for obtaining associated data in response to a header portion of a packet and an interlinked network processor such as a RISC for performing a processing function on the header portion or the associated data. Both look-up engine and the network processor may modify a destination port bitmask. The network processor may implement additional packet header processing required for replication or server load balancing.
摘要翻译：网络交换机包括用于响应于分组的报头部分获取相关联的数据的查找引擎和诸如用于在报头部分或相关联的数据上执行处理功能的诸如RISC的互连网络处理器。查找引擎和网络处理器都可以修改目标端口位掩码。网络处理器可以实现复制或服务器负载平衡所需的附加数据包头处理。

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