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公开(公告)号：US08014390B2
公开(公告)日：2011-09-06
申请号：US11289687
申请日：2005-11-30
CPC分类号： H04L47/10 , H04L45/00 , H04L45/742 , H04L69/12
摘要： A network device for processing packets. The network device includes applying specific fields from a packet to an associated memory device and comparing means for comparing input to the memory device with entries in the memory device. The network device also includes enabling means for enabling selection of bits, by the memory device, that are required to match exactly with bits from the input to the memory device. The network device further includes outputting means for outputting an address for a matched entry by the memory device and applying means for applying a match from the memory device to an associated entry in a table for applying actions from the table that are associated with the match to the packet.
摘要翻译： 用于处理数据包的网络设备。 网络设备包括将特定字段从分组应用到相关联的存储器设备，以及比较装置，用于将存储器设备的输入与存储器设备中的条目进行比较。 网络设备还包括启用装置，用于允许由存储器设备选择与从输入到存储器设备的位精确匹配的位。 网络设备还包括输出装置，用于输出由存储器装置匹配的条目的地址和应用装置，用于将来自存储器装置的匹配应用于表中的相关条目，用于从与表匹配的表中应用动作 包。
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公开(公告)号：US08005084B2
公开(公告)日：2011-08-23
申请号：US11289366
申请日：2005-11-30
IPC分类号： H04L12/28
CPC分类号： H04L43/00 , H04L12/4641 , H04L49/208 , H04L49/3009 , H04L49/352 , H04L49/602
摘要： A network device for implementing mirroring on packets. The network device includes a plurality of ports, each of which is at least one of an ingress port, an egress port and a mirror-to port. The network device also includes processing means for supporting a plurality of mirroring types. Each of the ingress port, egress port and mirror-to port includes at least one register for supporting the plurality of mirroring types. To support mirroring at each of the ingress port, egress port and mirror-to port predefined bits in the at least one register are set. When an incoming packet is received, the predefined bits are examined to determine which of the plurality of mirroring types to apply to the packet.
摘要翻译： 一种用于实现数据包镜像的网络设备。 网络设备包括多个端口，每个端口是入端口，出端口和镜对端口中的至少一个。 网络设备还包括用于支持多种镜像类型的处理装置。 入口端口，出端口和镜对端口中的每一个包括至少一个用于支持多个镜像类型的寄存器。 为了支持每个入口端口的镜像，设置至少一个寄存器中的出口端口和镜像端口预定义位。 当接收到传入的分组时，检查预定义的比特以确定应用于分组的多个镜像类型中的哪一个。
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公开(公告)号：US07813337B2
公开(公告)日：2010-10-12
申请号：US11711984
申请日：2007-02-28
申请人： Bora Akyol , Puneet Agarwal , Brian Baird , Venkateshwar Buduma , Mohan Kalkunte
发明人： Bora Akyol , Puneet Agarwal , Brian Baird , Venkateshwar Buduma , Mohan Kalkunte
CPC分类号： H04L47/10 , H04L45/7453 , H04L47/2441 , H04L47/32 , H04L49/30 , H04L49/351 , H04L63/0227 , H04L63/20
摘要： Methods and systems for processing packets in data network using multistage classification are disclosed. An example method for processing packets includes receiving a data packet at a first processing stage and examining the packet at the first processing stage to determine a first attribute of the packet. Based on the first attribute, a first classification is assigned to the packet. In the example method, the packet and the first classification are communicated from the first processing stage to a second processing stage and the packet is examined at the second processing stage to determine a second attribute of the packet. Based on the second attribute, a second classification is assigned to the packet. The example method further includes processing the packet based on the first classification and the second classification.
摘要翻译： 公开了使用多级分类处理数据网络中数据包的方法和系统。 处理分组的示例性方法包括在第一处理阶段接收数据分组，并在第一处理阶段检查分组以确定分组的第一属性。 基于第一属性，将第一分类分配给分组。 在示例性方法中，将分组和第一分类从第一处理阶段传送到第二处理阶段，并且在第二处理阶段检查分组以确定分组的第二属性。 基于第二属性，向分组分配第二分类。 该示例方法还包括基于第一分类和第二分类处理分组。
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公开(公告)号：US20100142536A1
公开(公告)日：2010-06-10
申请号：US12706481
申请日：2010-02-16
IPC分类号： H04L12/56
CPC分类号： H04L49/602 , H04L49/103 , H04L49/254 , H04L49/3009 , H04L49/3072 , H04L49/352
摘要： A network device for selecting a port from a trunk group to transmit a unicast packet on the selected port. The network device includes at least one trunk group including a plurality of physical ports. The network device also includes a table with a plurality of entries. Each entry is associated with one trunk group and includes a plurality of fields that are associated with ports in the trunk group. Each entry also includes a hash field that is used to select bits from predefined fields of an incoming unicast packet to obtain an index bit for accessing one of the plurality of fields. The network device further includes transmitting means for transmitting the unicast packet to a port associated with an accessed one of the plurality of fields.
摘要翻译： 一种用于从中继组中选择端口以在所选端口上传输单播分组的网络设备。 网络设备包括至少一个包括多个物理端口的中继线群组。 网络设备还包括具有多个条目的表。 每个条目与一个中继线组相关联，并且包括与中继线群组中的端口相关联的多个字段。 每个条目还包括哈希字段，其用于从输入单播数据包的预定义字段中选择位以获得用于访问多个字段之一的索引位。 网络设备还包括用于将单播分组发送到与所访问的多个字段中的一个相关联的端口的发送装置。
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公开(公告)号：US20060114915A1
公开(公告)日：2006-06-01
申请号：US11289370
申请日：2005-11-30
CPC分类号： H04L12/4645 , H04J3/1617
摘要： A network device for implementing VLAN translation on a packet. The network device includes a user network interface port for receiving and transmitting packets to customers of a network. The network device also includes a network to network interface port for communicating with a second network device in the network. A packet received at the user network interface port is classified, translated based on a predefined provider field associated with the packet, and encapsulated with a tag that is removed when the packet is transmitted from the user network interface port to a customer.
摘要翻译： 用于在数据包上实现VLAN转换的网络设备。 网络设备包括用于接收和传送分组给网络的客户的用户网络接口端口。 网络设备还包括网络到网络接口端口，用于与网络中的第二网络设备进行通信。 在用户网络接口端口处接收到的分组被分类，基于与分组相关联的预定义提供商字段进行转换，并且当分组从用户网络接口端口传送到客户时被标签消除。
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公开(公告)号：US20060114908A1
公开(公告)日：2006-06-01
申请号：US11289687
申请日：2005-11-30
申请人： Mohan Kalkunte , Venkateshwar Buduma , Eric Baden
发明人： Mohan Kalkunte , Venkateshwar Buduma , Eric Baden
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L45/00 , H04L45/742 , H04L69/12
摘要： A network device for processing packets. The network device includes applying specific fields from a packet to an associated memory device and comparing means for comparing input to the memory device with entries in the memory device. The network device also includes enabling means for enabling selection of bits, by the memory device, that are required to match exactly with bits from the input to the memory device. The network device further includes outputting means for outputting an address for a matched entry by the memory device and applying means for applying a match from the memory device to an associated entry in a table for applying actions from the table that are associated with the match to the packet.
摘要翻译： 用于处理数据包的网络设备。 网络设备包括将特定字段从分组应用到相关联的存储器设备，以及比较装置，用于将存储器设备的输入与存储器设备中的条目进行比较。 网络设备还包括启用装置，用于允许由存储器设备选择与从输入到存储器设备的位精确匹配的位。 网络设备还包括输出装置，用于输出由存储器装置匹配的条目的地址和应用装置，用于将来自存储器装置的匹配应用于表中的相关条目，用于从与表匹配的表中应用动作 包。
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公开(公告)号：US20060114902A1
公开(公告)日：2006-06-01
申请号：US11289499
申请日：2005-11-30
IPC分类号： H04L12/56
CPC分类号： H04L12/18 , H04L45/16 , H04L45/245 , H04L45/745 , H04L49/201 , Y02D50/30
摘要： A network device for uniform distribution of non-unicast traffic, such as layer 2 broadcast, layer 2 multicast, unknown unicast and layer 3 multicast on a truch group. The network device includes at least one trunk group including a plurality of physical ports. The network device is connected to at least one other network device by a number of the plurality of physical ports. The network device also includes a table with a plurality of entries, wherein each entry is associated with the number of the plurality of physical ports on the network device. Each entry specifies if a packet should be transmitted on one of the plurality of physical ports. The network device further includes hashing means for hashing a predefined number of bits from predefined fields in the packet to select one entry in the table. The selected entry is used to identify a destination port. The network device also includes transmitting means for transmitting the packet to the destination port.
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公开(公告)号：US20050135399A1
公开(公告)日：2005-06-23
申请号：US10985033
申请日：2004-11-10
申请人： Eric Baden , Mohan Kalkunte , John Dull , Venkateshwar Buduma
发明人： Eric Baden , Mohan Kalkunte , John Dull , Venkateshwar Buduma
CPC分类号： H04L47/10 , H04L45/7453 , H04L47/20 , H04L47/2408 , H04L47/2441 , H04L47/2458 , H04L47/32 , H04L69/22
摘要： A method of handling a datagram in a network device is disclosed. The steps include receiving a datagram, with the datagram having multiple field values, at a port of a network device, parsing the received datagram to obtain the field values, applying the parsed field values to a Ternary Content Addressable Memory (TCAM), determining matches between the parsed field values and predetermined criteria in the TCAM, indexing into a policy table based on the determined matches to obtain an action entry and taking an action based on the obtained action entry.
摘要翻译： 公开了一种在网络设备中处理数据报的方法。 这些步骤包括在网络设备的端口处接收具有多个字段值的数据报的数据报，解析接收到的数据报以获得字段值，将解析的字段值应用于三元内容可寻址存储器（TCAM），确定匹配 在解析的字段值和TCAM中的预定标准之间，基于所确定的匹配来索引到策略表中，以获得动作条目并基于获得的动作条目采取动作。
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公开(公告)号：US07738385B2
公开(公告)日：2010-06-15
申请号：US11252562
申请日：2005-10-19
IPC分类号： H04L12/26
CPC分类号： H04L49/351 , H04L49/208 , H04L49/3063
摘要： A network device for processing packets includes an ingress module for performing switching functions on an incoming packet, a memory management unit for storing packets and performing resource checks on each packet and an egress module for performing packet modification and transmitting a modified packet to an appropriate egress port. The egress module is configured to send an unmodified version of the incoming packet to an ingress mirrored-to-port when an ingress port, upon which the incoming packet is received, is configured to mirror packets received by the ingress port.
摘要翻译： 一种用于处理分组的网络设备包括用于对输入分组执行切换功能的入口模块，用于存储分组并在每个分组上执行资源检查的存储器管理单元和用于执行分组修改的出口模块，以及将修改的分组发送到适当出口 港口。 出口模块配置为将入局报文的未修改版本发送到入口镜像到端口，当接收到入方向的报文的入口端口被配置为镜像入端口接收到的报文。
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公开(公告)号：US20090213868A1
公开(公告)日：2009-08-27
申请号：US12201931
申请日：2008-08-29
申请人： Rupa Budhia , Venkateshwar Buduma , Puneet Agarwal
发明人： Rupa Budhia , Venkateshwar Buduma , Puneet Agarwal
IPC分类号： H04L12/56
CPC分类号： H04L49/3009 , H04L49/109
摘要： An apparatus may include a port interface that is arranged and configured to receive a packet from an ingress port, a traffic management module being operatively coupled to the port interface and that is arranged and configured to manage routing of the packet to a destination, and a packet processing engine that is arranged and configured to perform packet processing on the packet and to associate a tag with the packet, where the tag includes a packet processing source field, a destination field, and a fabric source field.
摘要翻译： 设备可以包括端口接口，其被布置和配置为从入口端口接收分组，业务管理模块可操作地耦合到端口接口，并且被配置和配置为管理分组到目的地的路由，以及 分组处理引擎，其被配置和配置为对分组执行分组处理，并且将标签与分组相关联，其中标签包括分组处理源字段，目的地字段和结构源字段。
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