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公开(公告)号：US20110085545A1
公开(公告)日：2011-04-14
申请号：US12973603
申请日：2010-12-20
IPC分类号： H04L12/56
摘要： Packet switch operating methods and packet switches assign a packet to a virtual interface. The virtual interface is associated with a plurality of tunnels. One of the plurality is designated a primary tunnel configured to accept packets. Other tunnels of the plurality are designated as backup tunnels and are configured to reject packets. The methods and packet switches also determine which of the plurality of tunnels is the primary tunnel and determine a packet switch port associated with the primary tunnel. The methods and packet switches egress the packet via the primary tunnel on the packet switch port associated with the primary tunnel.
摘要翻译： 分组交换机操作方法和分组交换机将分组分配给虚拟接口。 虚拟接口与多个隧道相关联。 多个中的一个被指定为被配置为接受分组的主要隧道。 多个其他隧道被指定为备份隧道，并且被配置为拒绝分组。 方法和分组交换机还确定多个隧道中的哪一个是主隧道，并且确定与主隧道相关联的分组交换机端口。 方法和分组交换机通过与主隧道相关联的分组交换机端口上的主隧道出口数据包。
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公开(公告)号：US07830883B1
公开(公告)日：2010-11-09
申请号：US11612905
申请日：2006-12-19
IPC分类号： H04L12/28
CPC分类号： H04L12/4658 , H04L12/4662 , H04L45/00 , H04L45/50 , H04L49/00
摘要： This invention includes methods and packet switches that modify duplicate packets to have different transport formats. A packet switch receives a plurality of duplicate packets from a switching fabric and modifies two or more of the duplicate packets so that the modified duplicate packets have different transport identifiers. The packet switch then transmits one of the duplicate packets on each of a plurality of ports of the packet switch.
摘要翻译： 本发明包括修改重复分组以具有不同传输格式的方法和分组交换机。 分组交换机从交换结构接收多个重复分组，并修改两个或更多个重复分组，使得修改的重复分组具有不同的传输标识符。 分组交换机然后在分组交换机的多个端口的每个端口上发送一个重复分组。
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公开(公告)号：US07782856B1
公开(公告)日：2010-08-24
申请号：US11548865
申请日：2006-10-12
CPC分类号： H04L12/4645 , H04L45/00 , H04L45/245 , H04L45/26 , H04L45/502
摘要： This document describes tools that forward data packets having tags conforming to different formats. In one embodiment, the tools receive a data packet on each of a plurality of ports, each data packet comprising a tag conforming to a different format. The tools relay the data packets to a port capable of transmitting tags conforming to a plurality of formats. In another embodiment, the tools receive a plurality of data packets on a source port comprising a plurality of logical source ports, each of which is associated with a unique tag. At least one data packet is received on each logical source port. Each data packet includes the tag associated with the logical source port on which the data packet is received. The tools map each data packet to one of a plurality of virtual switches based on the logical source port on which the data packet is received.
摘要翻译： 本文档描述了转发具有符合不同格式的标签的数据包的工具。 在一个实施例中，工具在多个端口中的每一个上接收数据分组，每个数据分组包括符合不同格式的标签。 工具将数据包中继到能够发送符合多种格式的标签的端口。 在另一个实施例中，工具在源端口上接收包括多个逻辑源端口的多个数据分组，每个逻辑源端口与唯一标签相关联。 在每个逻辑源端口上接收至少一个数据包。 每个数据分组包括与其上接收数据分组的逻辑源端口相关联的标签。 该工具基于接收数据分组的逻辑源端口将每个数据分组映射到多个虚拟交换机之一。
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公开(公告)号：US20100098086A1
公开(公告)日：2010-04-22
申请号：US12646877
申请日：2009-12-23
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L2212/00
摘要： This invention includes tools that prevent forwarding of a packet to a control plane of a packet switch. The tools receive a packet comprising indicia suggesting that the packet be forwarded to a control plane of a packet switch. After receiving the packet, the tools may modify the packet to prevent the packet from being forwarded to the control plane, intercept the packet before it is received by the control plane, or otherwise prevent the packet from being forwarded to the control plane. The tools may also forward the packet from a source port of a packet switch to a destination port of the packet switch without forwarding the packet to the control plane of the packet switch.
摘要翻译： 本发明包括防止分组转发到分组交换机的控制平面的工具。 工具接收包含标记的数据包，表明数据包被转发到数据包交换机的控制平面。 收到数据包后，工具可以修改数据包，防止数据包转发到控制平面，在数据包被控制平面接收之前拦截数据包，否则可以防止数据包转发到控制平面。 这些工具还可以将分组从分组交换机的源端口转发到分组交换机的目的地端口，而不将分组转发到分组交换机的控制平面。
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5.发明授权公开(公告)号：US08886878B1
公开(公告)日：2014-11-11
申请号：US13682937
申请日：2012-11-21
IPC分类号： G06F12/00
CPC分类号： H04L43/0894 , H04L43/0829
摘要： A method, a statistics subsystem, and a system use a combination of commercially available high speed memory and high density low speed memory to mitigate cost, space, control, and power issues associated with storing counters for statistics updates, while meeting the growing width and depth needs of multi-hundred gigabit Carrier Class data network devices. The method, statistics subsystem, and system offer a Counter Management Algorithm (CMA) that relies on rollover bits stored within data of counters. An update to the low speed memory is substantially faster than a rollover time for the counter in the high speed memory thereby allowing statistics to be cached in the high speed memory while updates take place to the low speed memory.
摘要翻译： 一种方法，统计子系统和系统使用市售的高速存储器和高密度低速存储器的组合来减轻与用于统计更新的存储计数器相关联的成本，空间，控制和电力问题，同时满足增长的宽度和 深度需要数百兆千兆载波级数据网络设备。 方法，统计子系统和系统提供了一种依赖于存储在计数器数据中的翻转位的计数器管理算法（CMA）。 低速存储器的更新比高速存储器中的计数器的翻转时间快得多，从而允许将统计信息缓存在高速存储器中，而对低速存储器进行更新。
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公开(公告)号：US08379676B1
公开(公告)日：2013-02-19
申请号：US11421764
申请日：2006-06-01
CPC分类号： H04L12/4666
摘要： This document describes tools useful in relaying a data stream from a data device to a network tunnel, such as by injecting in-band control messages without impacting a data rate. For example, the tools may receive data packets on a first link and then relay the data packets to a data device on a second link. While doing so, the tools may periodically free an amount of link time by reducing the length of the relayed data packets by reducing the length of a header of each data packet. The tools may then consume the freed link time by sending a control message on the second link to the data device.
摘要翻译： 本文档描述了将数据流从数据设备中继到网络隧道有用的工具，例如通过在不影响数据速率的情况下注入带内控制消息。 例如，工具可以在第一链路上接收数据分组，然后将数据分组中继到第二链路上的数据设备。 在这样做时，工具可以通过减少每个数据分组的报头的长度来减少中继的数据分组的长度来周期性地消除链接时间量。 然后，工具可以通过在到数据设备的第二链路上发送控制消息来消耗释放的链接时间。
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公开(公告)号：US07653057B1
公开(公告)日：2010-01-26
申请号：US11565466
申请日：2006-11-30
CPC分类号： H04L47/10 , H04L2212/00
摘要： This invention includes tools that prevent forwarding of a packet to a control plane of a packet switch. The tools receive a packet comprising indicia suggesting that the packet be forwarded to a control plane of a packet switch. After receiving the packet, the tools may modify the packet to prevent the packet from being forwarded to the control plane, intercept the packet before it is received by the control plane, or otherwise prevent the packet from being forwarded to the control plane. The tools may also forward the packet from a source port of a packet switch to a destination port of the packet switch without forwarding the packet to the control plane of the packet switch.
摘要翻译： 本发明包括防止分组转发到分组交换机的控制平面的工具。 工具接收包含标记的数据包，表明数据包被转发到数据包交换机的控制平面。 收到数据包后，工具可以修改数据包，防止数据包转发到控制平面，在数据包被控制平面接收之前拦截数据包，否则可以防止数据包转发到控制平面。 这些工具还可以将分组从分组交换机的源端口转发到分组交换机的目的地端口，而不将分组转发到分组交换机的控制平面。
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公开(公告)号：US08018938B1
公开(公告)日：2011-09-13
申请号：US11612914
申请日：2006-12-19
IPC分类号： H04L12/28
CPC分类号： H04L12/4662 , H04L12/4654 , H04L12/4658 , H04L12/4666 , H04L49/00 , H04L49/3009 , H04L49/505 , H04L49/70
摘要： This invention includes methods and packet switches that translate a packet between a switching format and a transport format. One packet switch receives a packet intended for a destination port of a packet switch from a switching fabric of the packet switch and determines, based on the destination port, a treatment to be applied to the packet. The packet switch then applies the treatment to the packet prior to forwarding the packet to the destination port. The treatment may include adding a transport identifier to the packet.
摘要翻译： 本发明包括在切换格式和传输格式之间转换分组的方法和分组交换机。 一个分组交换机从分组交换机的交换结构接收到用于分组交换机的目的地端口的分组，并且基于目的端口确定要应用于分组的处理。 然后，分组交换机在将分组转发到目的端口之前将处理应用于分组。 该处理可以包括向分组添加传输标识符。
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9.发明授权Virtual switching using a provisional identifier to conceal a user identifier 有权虚拟交换使用临时标识符来隐藏用户标识符公开(公告)号：US07961728B2
公开(公告)日：2011-06-14
申请号：US12646682
申请日：2009-12-23
CPC分类号： H04L12/465 , H04L12/4666 , H04L49/3009 , H04L49/505 , H04L49/70
摘要： This document describes tools useful in relaying a data stream from a data device to a network tunnel, such as by enabling virtual switching using a provisional identifier to conceal a user identifier. These tools, for example, may use an inexpensive switch module to create virtual switch instances. To do so, the tools may assign data packets to a virtual switch instance by mapping the data packets to a particular provisional identifier and then modifying the data packets to include the provisional identifier. The switch module may then forward the data packets based on the provisional identifier rather than on the user identifier. The tools may remove the provisional identifier before forwarding the data packets to a destination.
摘要翻译： 本文档描述了将数据流从数据设备中继到网络隧道有用的工具，例如通过启用使用临时标识符进行虚拟交换来隐藏用户标识符。 例如，这些工具可以使用廉价的交换机模块来创建虚拟交换机实例。 为此，工具可以通过将数据分组映射到特定的临时标识符然后修改数据分组以包括临时标识符来将数据分组分配给虚拟交换机实例。 然后，交换机模块可以基于临时标识符而不是用户标识符来转发数据分组。 这些工具可以在将数据包转发到目的地之前删除临时标识符。
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公开(公告)号：US07948874B2
公开(公告)日：2011-05-24
申请号：US11753461
申请日：2007-05-24
IPC分类号： H04L12/26
CPC分类号： H04L45/28 , H04L45/22 , H04L45/50 , H04L49/351 , H04L49/354 , H04L49/357 , H04L49/552 , H04L49/70
摘要： Packet switch operating methods and packet switches provision a plurality of tunnels on a packet switch by associating each of the plurality of tunnels with a packet switch port and by configuring the packet switch to modify packets relayed by the tunnel to include a transport identifier associated with the tunnel. The tunnels of the plurality relay packets when permitted by a tunnel index. The plurality of tunnels and the tunnel index are associated with a virtual interface. The methods and packet switches also permit a first tunnel of the plurality of tunnels to relay packets by configuring the tunnel index to indicate the first tunnel. The tunnel index indicates only one tunnel. The methods and packet switches also enable a second tunnel of the plurality of tunnels to relay packets by configuring the tunnel index to indicate the second tunnel, thereby preventing the first tunnel from relaying packets.
摘要翻译： 分组交换机操作方法和分组交换机通过将多个隧道中的每一个与分组交换机端口相关联并且通过配置分组交换机来修改由隧道中继的分组，以包括与该交换机相关联的传输标识符来在分组交换机上提供多个隧道 隧道。 当隧道索引允许时，多个中继分组的隧道。 多个隧道和隧道索引与虚拟接口相关联。 方法和分组交换机还允许多个隧道的第一隧道通过配置隧道索引来中继分组，以指示第一隧道。 隧道索引仅显示一条隧道。 所述方法和分组交换机还使得所述多个隧道中的第二隧道能够通过配置所述隧道索引来指示所述第二隧道来中继分组，从而防止所述第一隧道中继分组。
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