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1. 发明授权

US07277386B1 Distribution of label switched packets 有权
标题翻译：标签交换包的分发
公开(公告)号：US07277386B1
公开(公告)日：2007-10-02
申请号：US10293785
申请日：2002-11-12
申请人： Dennis C Ferguson , Nischal Sheth , Ken Kuwabara
发明人： Dennis C Ferguson , Nischal Sheth , Ken Kuwabara
IPC分类号： H04J1/16 , H04J3/16 , H04L12/66 , H04L12/56 , H04L12/28
CPC分类号： H04L45/50 , H04L45/04 , H04L45/745
摘要： Techniques are described for distribution of label switched packets, such as multiprotocol label switched (MPLS) packets, across multiple physical data paths. The techniques may, for example, be used to load balance the label switched packets across an aggregated link having two or more logically associated physical interconnects. A network device, for example, includes an interface card to receive packets associated with a common label switched path (LSP), and a control unit to distribute the packets across multiple paths. The network device may include label data that maps ranges of labels, such as MPLS labels, to types of payloads carried by the label switched packets. In accordance with the label data, the control unit extracts flow information from the label switched packets and distributes the label switched packets across the paths based on the flow information. The control unit may generate hash values from the flow information, the labels, or combinations thereof, to control distribution of the label switched packets.
摘要翻译：描述了用于在多个物理数据路径上分发标签交换分组（例如多协议标签交换（MPLS）分组）的技术。例如，这些技术可以用于跨越具有两个或多个逻辑关联的物理互连的聚合链路对标签交换分组进行负载平衡。例如，网络设备包括用于接收与公共标签交换路径（LSP）相关联的分组的接口卡，以及用于跨多个路径分发分组的控制单元。网络设备可以包括将诸如MPLS标签的标签的范围映射到由标签交换分组携带的有效载荷的类型的标签数据。根据标签数据，控制单元从标签交换的分组中提取流信息，并且基于流信息在路径上分发标签交换分组。控制单元可以从流信息，标签或其组合生成哈希值，以控制标签交换分组的分配。

2. 发明申请

US20100284407A1 NEXTHOP TO A FORWARDING TABLE 审中-公开
标题翻译： NEXTHOP到前进表
公开(公告)号：US20100284407A1
公开(公告)日：2010-11-11
申请号：US12842210
申请日：2010-07-23
申请人： Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
发明人： Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
IPC分类号： H04L12/56
CPC分类号： H04L45/742 , H04L45/04 , H04L45/54
摘要： A router receives destination address information for a packet and determines, among entries in a first forwarding table, a closest match for the received destination address information. The router receives a pointer to a second forwarding table in accordance with the closest match determined in the first forwarding table and determines, among entries in the second forwarding table, a closest match for the received destination address information.
摘要翻译：路由器接收分组的目的地地址信息，并且在第一转发表中的条目中确定所接收的目的地地址信息的最接近的匹配。路由器根据在第一转发表中确定的最接近的匹配接收指向第二转发表的指针，并在第二转发表中的条目中确定接收到的目的地地址信息的最接近的匹配。

3. 发明授权

US09106506B2 Filter-based forwarding in a network 有权
标题翻译：网络中基于过滤器的转发
公开(公告)号：US09106506B2
公开(公告)日：2015-08-11
申请号：US12878849
申请日：2010-09-09
申请人： Ken Kuwabara , Steven Lin , Michael Langdon
发明人： Ken Kuwabara , Steven Lin , Michael Langdon
IPC分类号： H04L12/701 , H04L12/723 , H04L12/741 , H04L29/06
CPC分类号： H04L45/00 , H04L45/50 , H04L45/54 , H04L69/22
摘要： A router receives a packet at an ingress interface. The router classifies the received packet based on at least a first field value contained in the header of the packet. According to the classification of the received packet, the router associates one of the plurality of forwarding tables to the packet. The router then performs a lookup operation in the associated forwarding table according to at least a second field value contained in the header of the packet. Based on the lookup operation, the router determines an egress interface and transmits the received packet from the determined egress interface.
摘要翻译：路由器在入口接口接收数据包。所述路由器至少基于所述分组报头中包含的第一字段值对接收到的分组进行分类。根据接收到的分组的分类，路由器将多个转发表中的一个与该分组相关联。然后，路由器根据分组头部中的至少第二字段值在相关联的转发表中执行查找操作。基于查找操作，路由器确定出口接口并从确定的出口接口发送接收的分组。

4. 发明授权

US07813346B1 Filter-based forwarding in a network 有权
标题翻译：网络中基于过滤器的转发
公开(公告)号：US07813346B1
公开(公告)日：2010-10-12
申请号：US09990204
申请日：2001-11-21
申请人： Ken Kuwabara , Steven Lin , Michael Langdon
发明人： Ken Kuwabara , Steven Lin , Michael Langdon
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , H04L45/50 , H04L45/54 , H04L69/22
摘要： A router receives a packet at an ingress interface. The router classifies the received packet based on at least a first field value contained in the header of the packet. According to the classification of the received packet, the router associates one of the plurality of forwarding tables to the packet. The router then performs a lookup operation in the associated forwarding table according to at least a second field value contained in the header of the packet. Based on the lookup operation, the router determines an egress interface and transmits the received packet from the determined egress interface.
摘要翻译：路由器在入口接口接收数据包。所述路由器至少基于所述分组报头中包含的第一字段值对接收到的分组进行分类。根据接收到的分组的分类，路由器将多个转发表中的一个与该分组相关联。然后，路由器根据分组头部中的至少第二字段值在相关联的转发表中执行查找操作。基于查找操作，路由器确定出口接口并从确定的出口接口发送接收的分组。

5. 发明授权

US07787466B1 Nexthop to a forwarding table 有权
标题翻译： Nexthop到转发表
公开(公告)号：US07787466B1
公开(公告)日：2010-08-31
申请号：US11460195
申请日：2006-07-26
申请人： Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
发明人： Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
IPC分类号： H04L12/56
CPC分类号： H04L45/742 , H04L45/04 , H04L45/54
摘要： A router receives destination address information for a packet and determines, among entries in a first forwarding table, a closest match for the received destination address information. The router receives a pointer to a second forwarding table in accordance with the closest match determined in the first forwarding table and determines, among entries in the second forwarding table, a closest match for the received destination address information.
摘要翻译：路由器接收分组的目的地地址信息，并且在第一转发表中的条目中确定所接收的目的地地址信息的最接近的匹配。路由器根据在第一转发表中确定的最接近的匹配接收指向第二转发表的指针，并在第二转发表中的条目中确定接收到的目的地地址信息的最接近的匹配。

6. 发明授权

US07519735B1 Single board routing arrangement 有权
标题翻译：单板布线布置
公开(公告)号：US07519735B1
公开(公告)日：2009-04-14
申请号：US09851363
申请日：2001-05-08
申请人： Hann-Hwan Ju , Ashok Krishnamurthi , Ross Heitkamp , Antony Chatzigianis , Ken Kuwabara
发明人： Hann-Hwan Ju , Ashok Krishnamurthi , Ross Heitkamp , Antony Chatzigianis , Ken Kuwabara
IPC分类号： G06F15/173
CPC分类号： H04L45/00 , H04L45/60
摘要： A network router employs a single board architecture that includes both a forwarding engine and an interface card concentrator. All of the circuits involved in routing are incorporated into a single board, reducing the system cost of the router. A single processor performs various functions in connection with these circuits, such as management of interface cards and the forwarding engine. In addition to lowering the system cost, the compact architecture allows higher density installation of interface cards.
摘要翻译：网络路由器采用包括转发引擎和接口卡集中器的单板架构。路由中涉及的所有电路都并入单板，降低了路由器的系统成本。单个处理器执行与这些电路相关的各种功能，例如接口卡和转发引擎的管理。除了降低系统成本之外，紧凑型架构还允许更高密度地安装接口卡。

7. 发明授权

US07106740B1 Nexthop to a forwarding table 有权
标题翻译： Nexthop到转发表
公开(公告)号：US07106740B1
公开(公告)日：2006-09-12
申请号：US10063216
申请日：2002-03-29
申请人： Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
发明人： Manoj Leelanivas , Ravi Vaidyanathan , Ken Kuwabara , Steven Lin
IPC分类号： H04L12/56
CPC分类号： H04L45/742 , H04L45/04 , H04L45/54
摘要： A router receives destination address information for a packet and determines, among entries in a first forwarding table, a closest match for the received destination address information. The router receives a pointer to a second forwarding table in accordance with the closest match determined in the first forwarding table and determines, among entries in the second forwarding table, a closest match for the received destination address information.
摘要翻译：路由器接收分组的目的地地址信息，并且在第一转发表中的条目中确定所接收的目的地地址信息的最接近的匹配。路由器根据在第一转发表中确定的最接近的匹配接收指向第二转发表的指针，并在第二转发表中的条目中确定接收到的目的地地址信息的最接近的匹配。

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