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    Network switch having port blocking capability
    1.
    发明授权
    Network switch having port blocking capability 有权
    网络交换机具有端口阻塞能力

    公开(公告)号：US07227862B2

    公开(公告)日：2007-06-05

    申请号：US09953881

    申请日：2001-09-18

    申请人： Mohan Kalkunte ,  Shekhar Ambe ,  Sam Sampath

    发明人： Mohan Kalkunte ,  Shekhar Ambe ,  Sam Sampath

    IPC分类号： H04L12/28

    CPC分类号： H04L49/3009 ,  H04L49/351 ,  H04L49/354 ,  H04L49/357

    摘要： A switch is configured to block packets from being transmitted through designated ports. The switch has port bitmap generator configured to obtain a port bitmap and a table is configured to store a block mask indicating which port the packet should not be transmitted. A block mask lookup is configured to determine the block mask for the packet from the table, and a transmit port bitmap generator is configured to determine which ports the packet should be transmitted using the port bitmap and the block mask.

    摘要翻译： 交换机被配置为阻止通过指定端口传输数据包。 交换机具有端口位图生成器，其被配置为获得端口位图，并且表被配置为存储指示哪个端口不应该发送该分组的块掩码。 块掩模查找被配置为确定来自表的分组的块掩码，并且发送端口位图生成器被配置为使用端口位图和块掩码来确定应该发送数据包的哪些端口。

    Network switch having port blocking capability
    2.
    发明授权
    Network switch having port blocking capability 有权
    网络交换机具有端口阻塞能力

    公开(公告)号：US07856015B2

    公开(公告)日：2010-12-21

    申请号：US11790906

    申请日：2007-04-27

    申请人： Mohan Kalkunte ,  Shekhar Ambe ,  Sam Sampath

    发明人： Mohan Kalkunte ,  Shekhar Ambe ,  Sam Sampath

    IPC分类号： H04L12/28

    CPC分类号： H04L49/3009 ,  H04L49/351 ,  H04L49/354 ,  H04L49/357

    摘要： A switch is configured to block packets from being transmitted through designated ports. The switch has port bitmap generator configured to obtain a port bitmap and a table is configured to store a block mask indicating which port the packet should not be transmitted. A block mask lookup is configured to determine the block mask for the packet from the table, and a transmit port bitmap generator is configured to determine which ports the packet should be transmitted using the port bitmap and the block mask.

    摘要翻译： 交换机被配置为阻止通过指定端口传输数据包。 交换机具有端口位图生成器，其被配置为获得端口位图，并且表被配置为存储指示哪个端口不应该发送该分组的块掩码。 块掩模查找被配置为确定来自表的分组的块掩码，并且发送端口位图生成器被配置为使用端口位图和块掩码来确定应该发送数据包的哪些端口。

    Switch assembly having multiple blades in a chassis
    5.
    发明授权
    Switch assembly having multiple blades in a chassis 有权
    开关组件在机箱中具有多个刀片

    公开(公告)号：US07466704B2

    公开(公告)日：2008-12-16

    申请号：US09956020

    申请日：2001-09-20

    申请人： Mohan Kalkunte ,  Shekhar Ambe

    发明人： Mohan Kalkunte ,  Shekhar Ambe

    IPC分类号： H04L12/56 ,  H04L12/28 ,  H04J3/24

    CPC分类号： H04L43/00 ,  H04L43/12 ,  H04L49/3018 ,  H04L49/351 ,  H04L49/354

    摘要： A switch assembly having multiple blades in a chassis and a method of using that assembly to switch data is disclosed. A network switch assembly for network communications includes at least one fabric blade and a plurality of port blades. The at least one fabric blade has at least one switch having a plurality of data port interfaces, supporting a plurality of fabric data ports transmitting and receiving data, and a CPU interface, where CPU interface is configured to communicate with a CPU. The at least one fabric blade also has a CPU subsystem communicating with the CPU interface. Each of said plurality of port blades has at least one switch having a plurality of data port interfaces, supporting a plurality of port data ports transmitting and receiving data. The plurality of port data ports communicate with the plurality of fabric data ports along multiple paths such that data received by the port data ports is switched to a destination port of the network switch assembly along a specified path of the multiple paths based on a portion of the received data. In particular, the invention relates to configurations having five and nine blades to provide the requisite switching capacity.

    摘要翻译： 公开了一种在底盘中具有多个叶片的开关组件以及使用该组件切换数据的方法。 用于网络通信的网络交换机组件包括至少一个结构刀片和多个端口刀片。 至少一个织物刀片具有至少一个开关，其具有多个数据端口接口，支持多个结构数据端口发送和接收数据;以及CPU接口，其中CPU接口被配置为与CPU通信。 至少一个织物刀片还具有与CPU接口通信的CPU子系统。 所述多个端口刀片中的每一个具有至少一个具有多个数据端口接口的开关，支持多个端口数据端口发送和接收数据。 多个端口数据端口沿着多个路径与多个结构数据端口进行通信，使得由端口数据端口接收的数据沿着多个路径的指定路径被切换到网络交换机组件的目的地端口 收到的数据。 特别地，本发明涉及具有五个和九个刀片以提供必要的切换能力的配置。

    Frame forwarding in a switch fabric
    7.
    发明授权
    Frame forwarding in a switch fabric 有权
    交换结构中的帧转发

    公开(公告)号：US07315552B2

    公开(公告)日：2008-01-01

    申请号：US10430424

    申请日：2003-05-07

    申请人： Mohan Kalkunte ,  Shekhar Ambe ,  Srinivas Sampath

    发明人： Mohan Kalkunte ,  Shekhar Ambe ,  Srinivas Sampath

    IPC分类号： H04L12/54

    CPC分类号： H04L12/5601 ,  H04L45/00 ,  H04L45/54 ,  H04L45/742 ,  H04L49/203 ,  H04L49/309 ,  H04L2012/5651

    摘要： A method of forwarding data in a network switch fabric is disclosed. An incoming data packet is received at a first port of the fabric and a first packet portion, less than a full packet length, is read to determine particular packet information including an opcode value. The opcode value allows the fabric to determine the packet type, such a a whether the packet is a broadcast packet, a unicast packet, a multicast packet, etc. Based on the opcode value read, a particular forwarding table of a plurality forwarding tables is read and an egress port bitmap is determined based on entries read from the particular forwarding table. The incoming data packet is then forwarded based on the egress port bitmap. In addition, the architecture of the switch fabric is also disclosed.

    摘要翻译： 公开了一种在网络交换结构中转发数据的方法。 在结构的第一端口处接收输入数据分组，并且读取小于全分组长度的第一分组部分以确定包括操作码值的特定分组信息。 操作码值允许结构确定分组类型，例如分组是广播分组，单播分组，组播分组等。基于读取的操作码值，读取多个转发表的特定转发表 并且基于从特定转发表读取的条目来确定出口端口位图。 然后根据出口端口位图转发输入数据包。 此外，还公开了交换结构的架构。

    Apparatus and method for enabling voice over IP support for a network switch
    9.
    发明授权
    Apparatus and method for enabling voice over IP support for a network switch 有权
    一种网络交换机支持语音IP支持的装置和方法

    公开(公告)号：US07082133B1

    公开(公告)日：2006-07-25

    申请号：US09654587

    申请日：2000-09-01

    申请人： Kar-Wing Edward Lor ,  Mohan Kalkunte ,  Shekhar Ambe

    发明人： Kar-Wing Edward Lor ,  Mohan Kalkunte ,  Shekhar Ambe

    IPC分类号： H04L12/28

    CPC分类号： H04L47/10 ,  H04L12/5601 ,  H04L12/6402 ,  H04L12/6418 ,  H04L29/06027 ,  H04L47/13 ,  H04L47/2408 ,  H04L47/2433 ,  H04L47/2441 ,  H04L47/2458 ,  H04L47/32 ,  H04L49/109 ,  H04L49/206 ,  H04L49/3072 ,  H04L49/351 ,  H04L49/352 ,  H04L65/103 ,  H04L65/104 ,  H04L65/605 ,  H04L65/80 ,  H04L2012/6408 ,  H04L2012/6464 ,  H04L2012/6472 ,  H04L2012/6481

    摘要： An apparatus and method for switching VOIP packets in a data network, wherein the method includes the steps of receiving a first packet in a network switch and determining if the first packet is a VOIP packet. Further, method includes determining a dynamically negotiated VOIP port for a VOIP session from at least one of the first packet and a second packet received in the network switch, if the first packet is determined to be the VOIP packet. Finally, the method includes the steps of classifying all subsequent VOIP packets corresponding to the dynamically negotiated VOIP port in accordance with predetermined parameters. The apparatus includes a network switch having at least one data port interface controller supporting a plurality of data ports for transmitting and receiving data, and a fast filtering processor in communication with the at least one data port interface. At least one filtering table in communication with the fast filtering processor is provided, wherein the fast filtering processor is configured to snoop packets being transmitted through the network switch to trap a VOIP call setup message, and thereafter, determine a dynamically negotiated VOIP port so that all subsequent VOIP packets can be filtered and assigned an appropriate priority.

    摘要翻译： 一种用于在数据网络中切换VOIP分组的装置和方法，其中所述方法包括以下步骤：在网络交换机中接收第一分组，并确定所述第一分组是否为VOIP分组。 此外，方法包括：如果第一分组被确定为VOIP分组，则从第一分组和网络交换机中接收的第二分组中的至少一个确定VOIP会话的动态协商VOIP端口。 最后，该方法包括根据预定参数对与动态协商的VOIP端口对应的所有后续VOIP分组进行分类的步骤。 该装置包括具有支持用于发送和接收数据的多个数据端口的至少一个数据端口接口控制器的网络交换机，以及与该至少一个数据端口接口通信的快速过滤处理器。 提供与快速过滤处理器通信的至少一个过滤表，其中快速过滤处理器被配置为窥探通过网络交换机发送的数据包以捕获VOIP呼叫建立消息，此后，确定动态协商的VOIP端口，使得 所有后续VOIP数据包可以被过滤并分配适当的优先级。