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    • 4. 发明申请
    • NETWORK ROUTING SYSTEM FOR ENHANCED EFFICIENCY AND MONITORING CAPABILITY
    • 网络路由系统,提高效率和监控能力
    • US20100135313A1
    • 2010-06-03
    • US12624300
    • 2009-11-23
    • Ian Edward DavisJeffrey A. PrinceRonak Patel
    • Ian Edward DavisJeffrey A. PrinceRonak Patel
    • H04L12/56
    • H04L45/00H04L45/16H04L45/306H04L45/60H04L45/70H04L47/22H04L47/2441H04L47/39H04L49/3009
    • According to an embodiment of the invention, a network device such as a router or switch provides efficient data packet handling capability. The network device includes one or more input ports for receiving data packets to be routed, as well as one or more output ports for transmitting data packets. The network device includes an integrated port controller integrated circuit for routing packets. The integrated circuit includes an interface circuit, a received packets circuit, a buffer manager circuit for receiving data packets from the received packets circuit and transmitting data packets in one or more buffers and reading data packets from the one or more buffers. The integrated circuit also includes a rate shaper counter for storing credit for a traffic class, so that the integrated circuit can support input and/or output rate shaping. The integrated circuit may be associated with an IRAM, a CAM, a parameter memory configured to hold routing and/or switching parameters, which may be implemented as a PRAM, and an aging RAM, which stores aging information. The aging information may be used by a CPU coupled to the integrated circuit via a system interface circuit to remove entries from the CAM and/or the PRAM when an age count exceeds an age limit threshold for the entries.
    • 根据本发明的实施例,诸如路由器或交换机之类的网络设备提供有效的数据分组处理能力。 网络设备包括用于接收要路由的数据分组的一个或多个输入端口以及用于传输数据分组的一个或多个输出端口。 网络设备包括用于路由分组的集成端口控制器集成电路。 集成电路包括接口电路,接收分组电路,用于从接收到的分组电路接收数据分组并在一个或多个缓冲器中发送数据分组并从一个或多个缓冲器读取数据分组的缓冲器管理器电路。 集成电路还包括用于存储业务等级的信用的速率整形计数器,使得集成电路可以支持输入和/或输出速率整形。 集成电路可以与IRAM,CAM,被配置为保存可被实现为PRAM的路由和/或切换参数的参数存储器以及存储老化信息的老化RAM相关联。 老化信息可以由耦合到集成电路的CPU通过系统接口电路使用,以在年龄计数超过条目的年龄限制阈值时从CAM和/或PRAM中移除条目。
    • 7. 发明授权
    • Backplane interface adapter
    • 背板接口适配器
    • US07236490B2
    • 2007-06-26
    • US09855038
    • 2001-05-15
    • Andrew ChangRonak PatelMing G Wong
    • Andrew ChangRonak PatelMing G Wong
    • H04L12/28H04L12/56
    • H04L49/25H04L47/50H04L47/6225H04L49/153H04L49/1538H04L49/30H04L49/3063H04L49/352H04L49/90H04L49/901Y10S370/907
    • A backplane interface adapter for a high-performance network switch. The backplane interface adapter receives narrow input cells carrying packets of data and outputs wide striped cells to a switching fabric. One traffic processing path through the backplane interface adapter includes deserializer receivers, a traffic sorter, wide cell generators, stripe send queues, a backplane transmit arbitrator, and serializer transmitters. Another traffic processing path through the backplane interface adapter includes deserialize receivers, a stripe interface, stripe receive synchronization queues, a controller, wide/narrow cell translator, destination queues, and serializer transmitters. An encoding scheme for packets of data carried in wide striped cells is provided.
    • 用于高性能网络交换机的背板接口适配器。 背板接口适配器接收携带数据包的窄输入单元,并向交换结构输出宽条带单元。 通过背板接口适配器的一个流量处理路径包括解串器接收器,流量分拣机,宽单元发生器,条带发送队列,背板发送仲裁器和串行器发送器。 通过背板接口适配器的另一业务处理路径包括反序列化接收机,条带接口,条带接收同步队列,控制器,宽/窄小区转换器,目的地队列和串行发送器。 提供了一种用于在宽条带单元格中携带的数据分组的编码方案。
    • 8. 发明申请
    • High-performance network switch
    • 高性能网络交换机
    • US20050089049A1
    • 2005-04-28
    • US10736680
    • 2003-12-17
    • Andrew ChangRonak PatelMing Wong
    • Andrew ChangRonak PatelMing Wong
    • H04L12/56H04L12/28
    • H04L49/101H04L49/153H04L49/1538H04L49/3072H04L49/351H04L49/608
    • The present invention provides a high-performance network switch. A digital switch has a plurality of blades coupled to a switching fabric via serial pipes. Serial link technology is used in the switching fabric. Each blade outputs serial data streams with in-band control information in multiple stripes to the switching fabric. The switching fabric includes a plurality of cross points corresponding to the multiple stripes. In one embodiment five stripes and five cross points are used. Each blade has a backplane interface adapter (BIA). One or more integrated bus translators (IBTs) and/or source packet processors are coupled to a BIA. An encoding scheme for packets of data carried in wide striped cells is provided.
    • 本发明提供一种高性能网络交换机。 数字开关具有通过串联管耦合到开关结构的多个叶片。 串行链路技术用于交换结构。 每个刀片将串行数据流以多条带的带内控制信息输出到交换结构。 交换结构包括对应于多个条带的多个交叉点。 在一个实施例中,使用五个条纹和五个交叉点。 每个刀片都有一个背板接口适配器(BIA)。 一个或多个集成总线转换器(IBT)和/或源分组处理器耦合到BIA。 提供了一种用于在宽条带单元格中携带的数据分组的编码方案。