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1. 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。

2. 发明授权

US06760776B1 Method and apparatus for processing network frames in a network processor by embedding network control information such as routing and filtering information in each received frame 有权
标题翻译：通过在每个接收到的帧中嵌入诸如路由和过滤信息的网络控制信息来处理网络处理器中的网络帧的方法和装置
公开(公告)号：US06760776B1
公开(公告)日：2004-07-06
申请号：US09546462
申请日：2000-04-10
申请人： Anthony Matteo Gallo , Natarajan Vaidhyanathan , Colin Beaton Verrilli , Gail Irene Woodland
发明人： Anthony Matteo Gallo , Natarajan Vaidhyanathan , Colin Beaton Verrilli , Gail Irene Woodland
IPC分类号： G06F1516
CPC分类号： H04L69/10 , H04L69/32
摘要： A method and apparatus for processing network frames by embedding control information achieves an efficient frame processing system within a network processor (NP). The layer type of the frame can be quickly determined by the layer processing components of picocode running on the NP by examining control information that is written by ingress processing layers to produce a modified frame format. The frames are routed to appropriate layer processors and processing for certain layers may be bypassed if the picocode determines that no processing is required at that layer. The frame may also be discarded completely by any of the layer processors.
摘要翻译：通过嵌入控制信息来处理网络帧的方法和装置在网络处理器（NP）内实现有效的帧处理系统。通过检查由入口处理层写入的控制信息以产生修改的帧格式，可以通过在NP上运行的picocode的层处理组件快速确定帧的层类型。帧被路由到适当的层处理器，并且如果皮卡代码确定在该层不需要处理，则可以绕过某些层的处理。帧也可以被任何层处理器完全丢弃。

3. 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。

4. 发明授权

US06763375B1 Method for defining and controlling the overall behavior of a network processor device 有权
标题翻译：用于定义和控制网络处理器设备的整体行为的方法
公开(公告)号：US06763375B1
公开(公告)日：2004-07-13
申请号：US09547362
申请日：2000-04-11
申请人： Claude Basso , Anthony Matteo Gallo , Marco C. Heddes , Seeta Hariharan , Sridhar Rao , Sonia Kiang Rovner
发明人： Claude Basso , Anthony Matteo Gallo , Marco C. Heddes , Seeta Hariharan , Sridhar Rao , Sonia Kiang Rovner
IPC分类号： G06F1300
CPC分类号： H04L41/0803 , H04L29/06 , H04L69/18
摘要： A system and method for controlling overall behavior of a network processor device implemented in a network processing environment servicing a communications network. The method includes steps of receiving a guided control frame including one or more control functions for configuring various functional devices within the network processor with device control parameter data; a step of forwarding one or more control functions from a received control frame to a functional device within the network processor to be configured; and, executing the control functions as specified in the control frame. A novel control frame data structure and communications infrastructure is implemented whereby any network processor device operating in a distributed network processing environment may be controlled in accordance with executed control functions and device control parameter data.
摘要翻译：一种用于控制在为通信网络服务的网络处理环境中实现的网络处理器设备的整体行为的系统和方法。该方法包括以下步骤：接收包括用于使用设备控制参数数据配置网络处理器内的各种功能设备的一个或多个控制功能的引导控制帧; 将一个或多个控制功能从接收到的控制帧转发到要配置的网络处理器内的功能设备的步骤; 并且执行控制帧中指定的控制功能。实现新颖的控制帧数据结构和通信基础设施，从而可以根据执行的控制功能和设备控制参数数据来控制在分布式网络处理环境中操作的任何网络处理器设备。

5. 发明授权

US06785734B1 System and method for processing control information from a general through a data processor when a control processor of a network processor being congested 失效
标题翻译：当网络处理器的控制处理器拥塞时，用于通过数据处理器处理来自一般的控制信息的系统和方法
公开(公告)号：US06785734B1
公开(公告)日：2004-08-31
申请号：US09546132
申请日：2000-04-10
申请人： Richard John Blasiak , David Wayne Cosby , Anthony Matteo Gallo , Sonia Kiang Rovner
发明人： Richard John Blasiak , David Wayne Cosby , Anthony Matteo Gallo , Sonia Kiang Rovner
IPC分类号： G06F15173
CPC分类号： H04L12/4633 , H04L12/4604
摘要： A method, system, program product, and data structure for processing network communication within a communication network from a general processor to a network processor. An informational frame is encapsulated into a packet for transmission within a communication network from a general processor to a network processor having a data processor and a control processor. If the informational frame is a control frame and the control processor is congested and if the control frame only needs message routing services from the locally connected network processor, the encapsulated packet is designated as a data-type packet so that the data processor processes the control frame. The encapsulated packet is then sent from the general processor to the network processor. The data processor decapsulates the encapsulated packet, parses the control frame and processes the control frame. The data processor directs and executes a control command defined within the control frame to a target control processor of a target network processor designated within the encapsulated packet.
摘要翻译：一种用于处理从通用处理器到网络处理器的通信网络内的网络通信的方法，系统，程序产品和数据结构。信息帧被封装成用于在通信网络内从通用处理器到具有数据处理器和控制处理器的网络处理器的数据包传输。如果信息帧是控制帧，并且控制处理器拥塞，并且如果控制帧仅需要来自本地连接的网络处理器的消息路由服务，则封装的分组被指定为数据类型分组，使得数据处理器处理控制帧。然后将封装的分组从通用处理器发送到网络处理器。数据处理器解封装封装的数据包，解析控制帧并处理控制帧。数据处理器将控制帧内定义的控制命令引导到封装分组内指定的目标网络处理器的目标控制处理器。

6. 发明授权

US06771652B1 Method and system for controlling transmission of packets in computer networks 有权
标题翻译：控制计算机网络中数据包传输的方法和系统
公开(公告)号：US06771652B1
公开(公告)日：2004-08-03
申请号：US09448380
申请日：1999-11-23
申请人： Metin Aydemir , Brian Mitchell Bass , Clark Debs Jeffries , Sonia Kiang Rovner , Michael Steven Siegel , Anthony Matteo Gallo
发明人： Metin Aydemir , Brian Mitchell Bass , Clark Debs Jeffries , Sonia Kiang Rovner , Michael Steven Siegel , Anthony Matteo Gallo
IPC分类号： H04L1256
CPC分类号： H04L47/10 , H04L47/29 , H04L47/30
摘要： A method and system for controlling a flow of a plurality of packets in a computer network is disclosed. The computer network includes a queue. The method and system include determining a queue level for the queue and determining an offered rate of the plurality of packets to the queue. The method and system also include controlling a transmission fraction of the plurality of packets to the queue, based on the queue level, the offered rate and a previous value of the transmission fraction so that the transmission fraction and the queue level are critically damped if the queue level is between at least a first queue level and a second queue level.
摘要翻译：公开了一种用于控制计算机网络中的多个分组的流的方法和系统。计算机网络包括队列。该方法和系统包括确定队列的队列级别并确定多个分组到队列的提供速率。该方法和系统还包括基于队列级别，所提供的速率和传输级数的先前值来控制多个分组到队列的传输分数，使得如果传输分数和队列级别被严格衰减，则队列级别在至少第一队列级别和第二队列级别之间。

7. 发明授权

US06829651B1 Local MAC address learning in layer 2 frame forwarding 有权
标题翻译：本地MAC地址学习在第二层帧转发
公开(公告)号：US06829651B1
公开(公告)日：2004-12-07
申请号：US09547369
申请日：2000-04-11
申请人： Brian Mitchell Bass , Teresa Lynn Davis , Anthony Matteo Gallo , Michael Steven Siegel , Fabrice Jean Verplanken , Gail Irene Woodland
发明人： Brian Mitchell Bass , Teresa Lynn Davis , Anthony Matteo Gallo , Michael Steven Siegel , Fabrice Jean Verplanken , Gail Irene Woodland
IPC分类号： G06F1300
CPC分类号： H04L61/00 , H04L29/12009
摘要： Method and apparatus for receiving a data frame on a received port of a network switch. The data frame includes a source media access control (MAC) address for the first device, and a destination MAC address for a second device connected to another port of the network. The data frame is forwarded to a target port which is connected to the second device. The MAC address is learned locally at the target port which facilities communications for frames which later enter the target port and contain addresses previously learned from a received frame.
摘要翻译：用于在网络交换机的接收端口上接收数据帧的方法和装置。数据帧包括用于第一设备的源媒体访问控制（MAC）地址和连接到网络的另一端口的第二设备的目的地MAC地址。数据帧被转发到连接到第二设备的目标端口。 MAC地址在目标端口本地学习，为进一步进入目标端口并包含从接收帧先前学习的地址的帧进行通信。

8. 发明授权

US06981027B1 Method and system for memory management in a network processing system 失效
标题翻译：网络处理系统中内存管理的方法和系统
公开(公告)号：US06981027B1
公开(公告)日：2005-12-27
申请号：US09546653
申请日：2000-04-10
申请人： Anthony Matteo Gallo , Seeta Hariharan , Marco C. Heddes , Sridhar Rao , Colin Beaton Verrilli , Gail Irene Woodland
发明人： Anthony Matteo Gallo , Seeta Hariharan , Marco C. Heddes , Sridhar Rao , Colin Beaton Verrilli , Gail Irene Woodland
IPC分类号： G06F15/167 , G06F9/44 , G06F12/00 , G06F12/02 , G06F12/06 , G06F13/14 , H04L12/24 , H04L12/44 , H04L12/46 , H04L12/56 , H04L29/06
CPC分类号： H04L49/35 , H04L49/3009 , H04L49/90 , Y10S707/99953 , Y10S707/99956
摘要： A method and system for memory management in a network processing system provides for allocation of physical memory areas within network processors coupled to a control point processor by a bus. The allocation scheme provides a memory management layer without requiring a complete operating system interface and supports asynchronous completion of the allocation requests. Multicast allocation is supported allowing an allocation to be simultaneously requested on multiple network processors. The allocation mechanism returns a token, which may then be used to access the memory location via a protocol over the bus, and a single token may refer to an allocation made on several network processors where the actual physical addresses and memory configurations are different.
摘要翻译：用于网络处理系统中的存储器管理的方法和系统提供通过总线分配耦合到控制点处理器的网络处理器内的物理存储器区域。分配方案提供了一个内存管理层，而不需要完整的操作系统接口，并支持异步完成分配请求。支持组播分配，允许在多个网络处理器上同时请求分配。分配机制返回令牌，然后可以通过总线通过协议来访问存储器位置，并且单个令牌可以指在实际物理地址和存储器配置不同的多个网络处理器上进行的分配。

9. 发明授权

US06738376B1 Method and system for managing multicast traffic 失效
标题翻译：管理组播流量的方法和系统
公开(公告)号：US06738376B1
公开(公告)日：2004-05-18
申请号：US09543676
申请日：2000-04-07
申请人： Richard John Blasiak , Gregory Scott Burgin , Anthony Matteo Gallo , Colin Beaton Verrilli , Gail Irene Woodland
发明人： Richard John Blasiak , Gregory Scott Burgin , Anthony Matteo Gallo , Colin Beaton Verrilli , Gail Irene Woodland
IPC分类号： H04L1228
CPC分类号： H04L45/00 , H04L12/185 , H04L12/1854 , H04L12/1886 , H04L45/16
摘要： A system for controlling multicast traffic in a multiprocessing system is disclosed. The multiprocessing system includes a general-purpose processor, a plurality of network processors and a switch fabric. The system comprises a multicast identifier (MID) manager to manage a distributed database of MIDs. The distributed database includes at least one compound MID. The at least one compound MID structure further comprises a plurality of MIDs representing at least two multicast groups. The system also includes a MID processor which traverses the at least one compound MID and resolves it into its associated simple MIDs. Accordingly, the present invention provides for a system and method for efficiently controlling multicast transmissions when different types of multicast groups are to receive the multicast transmissions. In this system and method a new type of multicast identifier (MID) is provided, a compound MID. The compound MID is a single MID but references multiple MIDs. The system includes a MID manager which manages a distributed database of MIDS. Finally, the system and method includes at least one MID processor which accesses the appropriate compound MIDs and resolves them into the simple member MIDs to allow a router to provide the information to an appropriate bridge.
摘要翻译：公开了一种用于在多处理系统中控制多播流量的系统。多处理系统包括通用处理器，多个网络处理器和交换结构。该系统包括用于管理MID的分布式数据库的多播标识符（MID）管理器。分布式数据库包括至少一个复合MID。所述至少一个复合MID结构还包括表示至少两个多播组的多个MID。该系统还包括一个MID处理器，它遍历至少一个复合MID并将其解析成其相关联的简单MID。因此，本发明提供了一种用于当不同类型的多播组要接收多播传输时有效地控制多播传输的系统和方法。在该系统和方法中，提供了一种新型的组播标识符（MID），即复合MID。复合MID是单个MID，但是引用了多个MID。该系统包括管理MIDS的分布式数据库的MID管理器。最后，该系统和方法包括至少一个MID处理器，其访问适当的复合MID并将其解析成简单成员MID，以允许路由器将信息提供给适当的桥。

10. 发明授权

US06658481B1 Router uses a single hierarchy independent routing table that includes a flag to look-up a series of next hop routers for routing packets 有权
标题翻译：路由器使用单独的层次结构独立路由表，其中包含一个标志来查找一系列下一跳路由器用于路由数据包
公开(公告)号：US06658481B1
公开(公告)日：2003-12-02
申请号：US09544312
申请日：2000-04-06
申请人： Claude Basso , Anthony Matteo Gallo , Natarajan Vaidhyanathan
发明人： Claude Basso , Anthony Matteo Gallo , Natarajan Vaidhyanathan
IPC分类号： G06F15173
CPC分类号： H04L45/52 , H04L45/00 , H04L45/20 , H04L45/54
摘要： In a network processor-based device, there is provided a single routing table for network routers and an efficient routing algorithm implemented by the routing device. The routing table includes packet forwarding information including a subnet address associated with a destination address location, an ISO layer three (3) network protocol address, e.g., IP address, of a router interface that can route packets to the subnet address, and an identifier indicating whether that router is an exit BGP router that may or may not be directly attached to the packet forwarding router. A table look-up mechanism is provided to determine next hop information and determine associated BGP status of the next hop. At such time it is determined that a router is not a BGP router (i.e., is directly attached to the forwarding router), the packet will be transmitted to that router.
摘要翻译：在基于网络处理器的设备中，提供了用于网络路由器的单个路由表和由路由设备实现的有效路由算法。路由表包括分组转发信息，包括与目的地地址相关联的子网地址，可以将分组路由到子网地址的路由器接口的ISO层三（3）网络协议地址，例如IP地址，以及标识符指示该路由器是否可以或可能不直接附加到分组转发路由器的退出BGP路由器。提供表查找机制以确定下一跳信息并确定下一跳的相关BGP状态。在此时确定路由器不是BGP路由器（即，直接连接到转发路由器），该分组将被发送到该路由器。

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