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91. 发明授权

US08218554B2 Generation and use of CRC in communications network 失效
公开(公告)号：US08218554B2
公开(公告)日：2012-07-10
申请号：US11875995
申请日：2007-10-22
申请人： James J. Allen, Jr. , Jean L. Calvignac , Natarajan Vaidhyanathan , Fabrice J. Verplanken
发明人： James J. Allen, Jr. , Jean L. Calvignac , Natarajan Vaidhyanathan , Fabrice J. Verplanken
IPC分类号： H04L12/28 , H03M13/00
CPC分类号： H04L1/0061 , H04L1/0072 , H04L12/5601 , H04L45/742 , H04L2012/5627 , H04L2012/5656
摘要： The CRC for the CPS Header of an ATM AAL2 cell is generated by a CRC generator which uses the 8 bits of the CID field to generate partial 5 bits CRCs which are loaded in a first table. The 6 bits LI field and 5 bits UUI field are added to the partial 5 bits CRC to form 16 bits. The CRC generator uses the 2.sup.16 bits to generate a second CRC table. The CRC for a particular CPS header is generated by correlating bits in the CID field, LI field and UUI field with the two tables.

92. 发明授权

US08179897B2 Generation and use of CRC in communications network 失效
标题翻译：通信网络中CRC的生成和使用
公开(公告)号：US08179897B2
公开(公告)日：2012-05-15
申请号：US11970868
申请日：2008-01-08
申请人： James J. Allen, Jr. , Jean L. Calvignac , Natarajan Vaidhyanathan , Fabrice J. Verplanken
发明人： James J. Allen, Jr. , Jean L. Calvignac , Natarajan Vaidhyanathan , Fabrice J. Verplanken
IPC分类号： H04L12/28
CPC分类号： H04L1/0061 , H04L1/0072 , H04L12/5601 , H04L45/742 , H04L2012/5627 , H04L2012/5656
摘要： The CRC for the CPS Header of an ATM AAL2 cell is generated by a CRC generator which uses the 8 bits of the CID field to generate partial 5 bits CRCs which are loaded in a first table. The 6 bits LI field and 5 bits UUI field are added to the partial 5 bits CRC to form 16 bits. The CRC generator uses the 2.sup.16 bits to generate a second CRC table. The CRC for a particular CPS header is generated by correlating bits in the CID field, LI field and UUI field with the two tables.
摘要翻译：用于ATM AAL2单元的CPS头的CRC由CRC发生器产生，CRC发生器使用CID字段的8位来产生加载在第一表中的部分5位CRC。 6位LI字段和5位UUI字段被添加到部分5位CRC以形成16位。 CRC生成器使用2.sup.16位来生成第二个CRC表。通过将CID字段，LI字段和UUI字段中的位与两个表相关来生成特定CPS头的CRC。

93. 发明授权

US08005989B2 Caching lookups based upon TCP traffic flow characteristics 失效
标题翻译：基于TCP流量特性的缓存查找
公开(公告)号：US08005989B2
公开(公告)日：2011-08-23
申请号：US12188333
申请日：2008-08-08
申请人： Everett A. Corl, Jr. , Gordon T. Davis , Clark D. Jeffries , Natarajan Vaidhyanathan , Colin B. Verrilli
发明人： Everett A. Corl, Jr. , Gordon T. Davis , Clark D. Jeffries , Natarajan Vaidhyanathan , Colin B. Verrilli
IPC分类号： G06F15/173
CPC分类号： H04L45/00 , H04L69/22
摘要： The classification system of a network device includes a cache in which a mapping between predefined characteristics of TCP/IP packets and associated actions are stored in response to the first “Frequent Flyer” packet in of a session. Selected characteristics from subsequent received packets of that session are correlated with the predefined characteristics and the stored actions are applied to the received packets if the selected characteristics and the predefined characteristics match, thus reducing the processing required for subsequent packets. The packets selected for caching may be data packets. For mismatched characteristics, the full packet search of the classification system is used to determine the action to apply to the received packet.
摘要翻译：网络设备的分类系统包括缓存，其中响应于会话中的第一“频繁传单”分组而存储TCP / IP分组的预定义特性与相关动作之间的映射。如果所选择的特征和预定义的特征匹配，则从该会话的后续接收到的分组中选出的特征与预定义的特征相关联，并且将存储的动作应用于所接收的分组，从而减少后续分组所需的处理。选择用于缓存的数据包可能是数据包。对于不匹配的特征，分类系统的全分组搜索用于确定应用于接收到的分组的动作。

94. 发明申请

US20080298244A1 APPARATUS AND METHOD FOR CACHING LOOKUPS BASED UPON TCP TRAFFIC FLOW CHARACTERISTICS 失效
标题翻译：基于TCP流量特性的查询语言的设备和方法
公开(公告)号：US20080298244A1
公开(公告)日：2008-12-04
申请号：US12188333
申请日：2008-08-08
申请人： Everett A. Corl, JR. , Gordon T. Davis , Clark D. Jeffries , Natarajan Vaidhyanathan , Colin B. Verrilli
发明人： Everett A. Corl, JR. , Gordon T. Davis , Clark D. Jeffries , Natarajan Vaidhyanathan , Colin B. Verrilli
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L69/22
摘要： The classification system of a network device includes a cache in which a mapping between predefined characteristics of TCP/IP packets and associated actions are stored in response to the first “Frequent Flyer” packet in of a session. Selected characteristics from subsequent received packets of that session are correlated with the predefined characteristics and the stored actions are applied to the received packets if the selected characteristics and the predefined characteristics match, thus reducing the processing required for subsequent packets. The packets selected for caching may be data packets. For mismatched characteristics, the full packet search of the classification system is used to determine the action to apply to the received packet.
摘要翻译：网络设备的分类系统包括缓存，其中响应于会话中的第一“频繁传单”分组而存储TCP / IP分组的预定义特性与相关动作之间的映射。如果所选择的特征和预定义的特征匹配，则从该会话的后续接收到的分组中选出的特征与预定义的特征相关联，并且将存储的动作应用于所接收的分组，从而减少后续分组所需的处理。选择用于缓存的数据包可能是数据包。对于不匹配的特征，分类系统的全分组搜索用于确定应用于接收到的分组的动作。

95. 发明申请

US20080046797A1 APPARATUS, METHOD AND PROGRAM PRODUCT TO GENERATE AND USE CRC IN COMMUNICATIONS NETWORK 失效
标题翻译：在通信网络中生成和使用CRC的装置，方法和程序产品
公开(公告)号：US20080046797A1
公开(公告)日：2008-02-21
申请号：US11875995
申请日：2007-10-22
申请人： James Allen , Jean Calvignac , Natarajan Vaidhyanathan , Fabrice Verplanken
发明人： James Allen , Jean Calvignac , Natarajan Vaidhyanathan , Fabrice Verplanken
IPC分类号： H03M13/09
CPC分类号： H04L1/0061 , H04L1/0072 , H04L12/5601 , H04L45/742 , H04L2012/5627 , H04L2012/5656
摘要： The CRC for the CPS Header of an ATM AAL2 cell is generated by a CRC generator which uses the 8 bits of the CID field to generate partial 5 bits CRCs which are loaded in a first table. The 6 bits LI field and 5 bits UUI field are added to the partial 5 bits CRC to form 16 bits. The CRC generator uses the 2.sup.16 bits to generate a second CRC table. The CRC for a particular CPS header is generated by correlating bits in the CID field, LI field and UUI field with the two tables.
摘要翻译：用于ATM AAL2单元的CPS头的CRC由CRC发生器产生，CRC发生器使用CID字段的8位来产生加载在第一表中的部分5位CRC。 6位LI字段和5位UUI字段被添加到部分5位CRC以形成16位。 CRC生成器使用2.sup.16位来生成第二个CRC表。通过将CID字段，LI字段和UUI字段中的位与两个表相关来生成特定CPS头的CRC。

96. 发明授权

US06954459B1 Method for forwarding broadcast packets in a bridged IP network 失效
标题翻译：在桥接IP网络中转发广播数据包的方法
公开(公告)号：US06954459B1
公开(公告)日：2005-10-11
申请号：US09596244
申请日：2000-06-16
申请人： Natarajan Vaidhyanathan , Deepak Vig
发明人： Natarajan Vaidhyanathan , Deepak Vig
IPC分类号： H04L12/24 , H04L12/28 , H04L29/12
CPC分类号： H04L29/12018 , H04L41/0843 , H04L41/0886 , H04L61/10
摘要： A method for automatically generating a network subnet configuration, monitors IP Address Resolution Protocol (ARP) frames on the network and builds and maintains a table which includes a list of learned subnets, the ports or forwarding domain associated with each of the learned subnets and a mask associated with each learned subnet for identifying hosts belonging to the subnet. The from and to IP addresses from intercepted IP ARP frames are examined to determine if the IP addresses belong in any of the learned subnets. If neither IP address belongs to an existing learned subnet a new learned subnet is established. The subnet includes the common prefix bits of both IP addresses, a mask identifying those bits and the port over which the ARP frame was received. If only one IP address belong to a learned subnet, the mask associated with that subnet is modified to include the common prefix bits of both IP addresses and the forwarding domain is adjusted. If the two IP addresses belong to different learned subnets, the two subnets are combined.
摘要翻译：一种用于自动生成网络子网配置的方法，监视网络上的IP地址解析协议（ARP）帧，并建立并维护一个表，其中包含学习子网的列表，与每个学习子网相关联的端口或转发域，以及与每个学习的子网相关联的掩码，用于标识属于该子网的主机。检查来自拦截的IP ARP帧的从IP地址到IP地址，以确定IP地址是否属于任何已学习的子网。如果IP地址都不属于现有学习子网，则建立一个新的学习子网。子网包括两个IP地址的公共前缀位，标识这些位的掩码和接收到ARP帧的端口。如果只有一个IP地址属于学习的子网，则修改与该子网相关联的掩码，以包括两个IP地址的公共前缀位，并调整转发域。如果两个IP地址属于不同的学习子网，则两个子网组合。

97. 发明授权

US06907469B1 Method for bridging and routing data frames via a network switch comprising a special guided tree handler processor 失效
标题翻译：用于通过包括特殊引导树处理器处理器的网络交换机桥接和路由数据帧的方法
公开(公告)号：US06907469B1
公开(公告)日：2005-06-14
申请号：US09546981
申请日：2000-04-11
申请人： Anthony Matteo Gallo , Natarajan Vaidhyanathan , Gail Irene Woodland
发明人： Anthony Matteo Gallo , Natarajan Vaidhyanathan , Gail Irene Woodland
IPC分类号： H04L12/56 , G06F15/173 , H04L12/28
CPC分类号： H04L45/00 , H04L45/60
摘要： Certain Layer 3 protocol data frames propagated on a network are typically processed by a control point (CP) in a network switch. The logical bridging and routing functions required in this processing typically entail network device address look-ups in routing tables and address databases. Using the CP to perform these look-ups is expensive in terms of processor cycles and memory. To offload the CP, the bridging functions are performed a network processor in the switch. The network processor has specialized software and hardware enabling it to perform the required database look-ups faster and more efficiently than the CP.
摘要翻译：在网络上传播的某些第3层协议数据帧通常由网络交换机中的控制点（CP）处理。该处理中所需的逻辑桥接和路由功能通常需要路由表和地址数据库中的网络设备地址查找。使用CP执行这些查找在处理器周期和内存方面是昂贵的。要卸载CP，桥接功能在交换机中执行网络处理器。网络处理器具有专门的软件和硬件，使其能够比CP更快更有效地执行所需的数据库查找。

98. 发明授权

US06772222B1 Multicast forwarding table processor 失效
标题翻译：组播转发表处理器
公开(公告)号：US06772222B1
公开(公告)日：2004-08-03
申请号：US09545576
申请日：2000-04-07
申请人： Anthony Matteo Gallo , Sonia Kiang Rovner , Natarajan Vaidhyanathan , Gail Irene Woodland
发明人： Anthony Matteo Gallo , Sonia Kiang Rovner , Natarajan Vaidhyanathan , Gail Irene Woodland
IPC分类号： G06F15173
CPC分类号： H04L45/16 , H04L12/18 , H04L12/467 , H04L45/00 , H04L49/201 , H04L49/3009 , H04L49/354 , H04L49/602
摘要： A multicast processor minimizes the software resource needed to process multicast protocol and broadcast protocol for bridges and routers in a network processor based environment. The multicast forwarding processor receives multicast and broadcast Layer 2/Layer 3/Layer 4 (L2/L3/L4) frames from a network processor. During reception, a frame layer flag, a unicast/multicast flag, and a frame position flag are set. A multitask forwarding table is accessed, and the frame, unicast/multicast, and frame position flags are stored and updated. The frame, unicast/multicast, and frame position flags are then sent to a frame forwarding processor. The L2/L3/L4 frames are routed to an L2 learning processor. The L2/L3/L4 frames are received from the frame forwarding processor, and the L2/L3/L4 frames are sent to an L3/L4 processor for frame header modification. The modified L2/L3/L4 frames are received from said L3/L4 processor, and the modified L2/L3/L4 frames are sent to an L2 filter processor.
摘要翻译：组播处理器最小化处理基于网络处理器的环境中的桥接器和路由器处理多播协议和广播协议所需的软件资源。多播转发处理器从网络处理器接收组播和广播第2层/第3层/第4层（L2 / L3 / L4）帧。在接收期间，设置帧层标志，单播/多播标志和帧位置标志。访问多任务转发表，并存储和更新帧，单播/多播和帧位置标志。然后将帧，单播/多播和帧位置标志发送到帧转发处理器。 L2 / L3 / L4帧路由到L2学习处理器。从帧转发处理器接收L2 / L3 / L4帧，将L2 / L3 / L4帧发送到L3 / L4处理器进行帧头修改。从L3 / L4处理器接收修改后的L2 / L3 / L4帧，将修改的L2 / L3 / L4帧发送到L2滤波处理器。

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