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1. 发明申请

US20070258446A1 Support of a large number of VLANs in a bridged network 有权
标题翻译：支持桥接网络中的大量VLAN
公开(公告)号：US20070258446A1
公开(公告)日：2007-11-08
申请号：US11416988
申请日：2006-05-02
申请人： Michael Smith , Gyaneshwar Saharia , Gaetano Borgione , Atul Rawat
发明人： Michael Smith , Gyaneshwar Saharia , Gaetano Borgione , Atul Rawat
IPC分类号： H04L12/56
CPC分类号： H04L12/4641 , H04L45/50
摘要： Disclosed are, inter alia, methods, apparatus, data structures, computer-readable media, mechanisms, and means for supporting a large number of virtual local area networks (VLANS) in a bridged network. Packets are received that include 802.1Q Virtual Local Area Network (VLAN) identifiers (VIDs). However, rather than accessing the VLAN forwarding information directly based on the VID as conventionally performed, the VLAN forwarding information to use for a particular packet is determined based on an interface (e.g., virtual or physical interface, port, MPLS label, GRE tunnel or other abstraction of the interface). In other words, the interface associated with the packet identifies a context for determining the VLAN forwarding information based on the VID included in the packet. Therefore, network bridging devices can support more VLANs than that imposed by the 4096 possible values of a VID.
摘要翻译：公开了尤其是用于支持桥接网络中的大量虚拟局域网（VLAN）的方法，装置，数据结构，计算机可读介质，机制和装置。收到包含802.1Q虚拟局域网（VLAN）标识符（VID）的数据包。但是，根据传统的VID直接访问VLAN转发信息，而不是根据接口（例如，虚拟或物理接口，端口，MPLS标签，GRE隧道或者接口）来确定用于特定数据包的VLAN转发信息，接口的其他抽象）。换句话说，与分组相关联的接口基于分组中包括的VID来标识用于确定VLAN转发信息的上下文。因此，网络桥接设备可以支持比VID的4096个可能值所施加的更多的VLAN。

2. 发明授权

US07292569B1 Distributed router forwarding architecture employing global translation indices 有权
标题翻译：使用全球翻译指数的分布式路由器转发架构
公开(公告)号：US07292569B1
公开(公告)日：2007-11-06
申请号：US10375786
申请日：2003-02-26
申请人： Michael Smith , Faisal Mushtaq , Gyaneshwar Saharia , Shreeram Bhide , Hemant Hebbar , Nelson D'Souza , Karthikeyan Gurusamy
发明人： Michael Smith , Faisal Mushtaq , Gyaneshwar Saharia , Shreeram Bhide , Hemant Hebbar , Nelson D'Souza , Karthikeyan Gurusamy
IPC分类号： H04L12/50
CPC分类号： H04L45/7457 , H04L45/745 , H04L49/3009
摘要： An efficient distributed architecture for forwarding packets. The packet to be forwarded arrives in an ingress port, is processed by an ingress forwarding engine, transferred to an egress forwarding engine, and then transmitted via an egress port. An address-based lookup at the ingress forwarding engine identifies the correct egress forwarding engine and also identifies a translation index specifying the forwarding equivalence class (e.g., combination of address prefix and mask) of the packet. The egress forwarding engine then uses the translation index as a memory pointer to recover adjacency information with which to rewrite the packet header. The egress forwarding engine may maintain its adjacency information entirely locally without the need to share the information or propagate updates to ingress forwarding engines. This approach results in a scalable and highly efficient packet forwarding architecture.
摘要翻译：一种用于转发数据包的高效分布式架构。要转发的分组到达入口端口，由入口转发引擎处理，传送到出口转发引擎，然后经由出口端口发送。在入口转发引擎处的基于地址的查找标识正确的出口转发引擎，并且还识别指定分组的转发等价类（例如，地址前缀和掩码的组合）的转换索引。然后，出口转发引擎使用转换索引作为存储器指针来恢复用于重写分组报头的邻接信息。出口转发引擎可以完全在本地保持其邻接信息，而不需要共享信息或传播更新到入口转发引擎。这种方法导致可扩展和高效的分组转发架构。

3. 发明申请

US20070002862A1 Generating and merging lookup results to apply multiple features 有权
标题翻译：生成和合并查找结果以应用多个功能
公开(公告)号：US20070002862A1
公开(公告)日：2007-01-04
申请号：US11497171
申请日：2006-08-01
申请人： Bhushan Kanekar , Venkateshwar Pullela , Dileep Devireddy , Gyaneshwar Saharia , Dipankar Bhattacharya , Qizhong Chen
发明人： Bhushan Kanekar , Venkateshwar Pullela , Dileep Devireddy , Gyaneshwar Saharia , Dipankar Bhattacharya , Qizhong Chen
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , G06F17/30982 , H04L45/54 , H04L45/7453 , H04L47/2441
摘要： Methods, apparatus, and other mechanisms are disclosed for merging lookup results, such as from one or more associative memory banks and/or memory devices. In one exemplary implementation, multiple associative memories or associative memory banks are configured to substantially simultaneously generate a plurality of lookup results based on a lookup value. Multiple memories are each configured to generate a corresponding result based on the lookup result generated by its corresponding associative memory or associative memory bank. A combiner is configured to receive and merge these corresponding results generated substantially simultaneously in order to identify the merged lookup result.
摘要翻译：公开了用于合并诸如来自一个或多个关联存储体和/或存储器装置的查找结果的方法，装置和其它机制。在一个示例性实现中，多个关联存储器或关联存储器组被配置为基于查找值基本上同时生成多个查找结果。多个存储器被配置为基于由其相应的关联存储器或关联存储体生成的查找结果来产生相应的结果。组合器被配置为接收并合并基本同时生成的这些对应结果，以便识别合并的查找结果。

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