公开(公告)号：US20150023328A1

公开(公告)日：2015-01-22

申请号：US14020936

申请日：2013-09-09

申请人： Pascal Thubert ,  Jean-Philippe Vasseur ,  Patrick Wetterwald

发明人： Pascal Thubert ,  Jean-Philippe Vasseur ,  Patrick Wetterwald

IPC分类号： H04W72/04

CPC分类号： H04W72/0446 ,  H04J3/1694 ,  H04L43/067 ,  H04L43/0876 ,  H04L45/32 ,  H04W40/023

摘要： In one embodiment, a network of nodes is configured to communicate according to a configuration of Available Routing Construct (ARC) chains as well as monitoring communication in the network, and/or selectively controls whether or not provisioned particular links will be used. One embodiment colors nodes of the network (e.g., a wireless deterministic network) along different paths through the network and marks packets with the color of each traversed node to track a path taken by a packet. One embodiment sends a particular packet through the network and marks over which links the packet traverses and aggregates these traversed links of other copies of the particular packet. One embodiment controls whether or not the provisioned time slots are used based on flooding a control packet through the network with enable or disable information for each of these links.

摘要翻译： 在一个实施例中，节点网络被配置为根据可用路由构造（ARC）链的配置进行通信，以及监视网络中的通信，和/或选择性地控制是否使用所提供的特定链路。 一个实施例沿着通过网络的不同路径来颜色网络的节点（例如，无线确定性网络），并且以每个遍历节点的颜色标记分组以跟踪由分组采取的路径。 一个实施例通过网络发送特定数据包，并标记数据包穿过哪个链接并聚合特定数据包的其他副本的这些遍历链接。 一个实施例控制是否基于通过网络淹没控制分组来使用所提供的时隙，而对于这些链路中的每一个，启用或禁用信息。

公开(公告)号：US20150023313A1

公开(公告)日：2015-01-22

申请号：US13954725

申请日：2013-07-30

申请人： Pascal Thubert ,  Jean-Philippe Vasseur ,  Patrick Wetterwald

发明人： Pascal Thubert ,  Jean-Philippe Vasseur ,  Patrick Wetterwald

IPC分类号： H04W72/04

CPC分类号： H04L5/0055 ,  H04L1/00 ,  H04L1/18 ,  H04L1/1854 ,  H04L1/188 ,  H04L1/1893 ,  H04L1/1896 ,  H04L5/00 ,  H04L5/0005 ,  H04L5/0073 ,  H04L2001/125 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/121

摘要： One embodiment allocates and uses exclusive and overlapping transmission units in a network. One embodiment includes sending information, from a first network node in a network, during an exclusive transmission unit, wherein the exclusive transmission unit includes one or more wireless time slot-frequency pairings assigned to the first network node to send info nation without another assigned network transmission unit providing overlapping time slot-frequency interference from another network node communicating in the network. One embodiment includes sending information, from the first network node, during an overlapping transmission unit, wherein the overlapping transmission unit includes one or more wireless time slot-frequency pairings assigned to the first network node to send information, with the overlapping transmission unit overlapping in time slot-frequency with one or more other assigned network transmission units that will cause interference if simultaneously used.

摘要翻译： 一个实施例在网络中分配和使用排他和重叠的传输单元。 一个实施例包括在排他传输单元期间从网络中的第一网络节点发送信息，其中排他传输单元包括分配给第一网络节点的一个或多个无线时隙 - 频率配对以发送信息而没有另一个分配的网络 传输单元提供来自在网络中通信的另一网络节点的重叠时隙频率干扰。 一个实施例包括在重叠传输单元期间从第一网络节点发送信息，其中重叠传输单元包括分配给第一网络节点以发送信息的一个或多个无线时隙 - 频率配对，其中重叠传输单元重叠 时隙频率与一个或多个其他分配的网络传输单元，如果同时使用将导致干扰。

公开(公告)号：US20140351465A1

公开(公告)日：2014-11-27

申请号：US13900681

申请日：2013-05-23

申请人： Norman William Finn ,  Lester C. Ginsberg

发明人： Norman William Finn ,  Lester C. Ginsberg

IPC分类号： G06F13/42

CPC分类号： G06F13/42 ,  H04L45/02

摘要： In one embodiment a limited functionality link state protocol node has one or two interfaces configured to send and receive link state protocol packets. In response to receiving, by the partially-participating link state protocol node on a first interface, a particular link state protocol data unit (LSP): sending the particular LSP from a second interface of the partially-participating link state protocol node without updating the local link state database when the second interface is currently participating in the link state protocol distribution; and sending an acknowledgment of the particular LSP from the first interface when the second interface is not currently participating in the link state protocol distribution.

摘要翻译： 在一个实施例中，有限功能链路状态协议节点具有被配置为发送和接收链路状态协议分组的一个或两个接口。 响应于通过第一接口上的部分参与链路状态协议节点接收特定链路状态协议数据单元（LSP）：从部分参与链路状态协议节点的第二接口发送特定LSP而不更新 本地链路状态数据库当第二个接口当前正在参与链路状态协议分配; 以及当所述第二接口当前未参与所述链路状态协议分发时，从所述第一接口发送所述特定LSP的确认。

公开(公告)号：US20140313891A1

公开(公告)日：2014-10-23

申请号：US14319811

申请日：2014-06-30

申请人： Nicholas Read Leavy ,  James William Heary

发明人： Nicholas Read Leavy ,  James William Heary

IPC分类号： H04L12/801 ,  H04L12/26

CPC分类号： H04L47/29 ,  H04L43/0876 ,  H04L43/16 ,  H04L47/10 ,  H04L47/22 ,  H04L47/32 ,  H04L63/1416 ,  H04L63/1458

摘要： One embodiment includes a firewall, intrusion prevention, or other device that automatically and dynamically adjusts packets subjected to certain rate limiting based on the reputation level associated with these packets (e.g., based on the reputation score of the source of a packet). In response to measured traffic, one embodiment automatically adjusts the range of reputation scores determining which packets are subjected to this rate limiting (e.g., which packets are possibly dropped), such as, but not limited to increase or decrease the measured traffic. For example, packet traffic with a worse reputation can be singled out for this rate limiting during a period of increased traffic, and then when the measured traffic subsides, the range of reputation scores can be correspondingly changed to allow more measured traffic.

摘要翻译： 一个实施例包括防火墙，入侵防御或其他设备，其基于与这些分组相关联的信誉级别（例如，基于分组的源的信誉分数）来自动和动态地调整受到一定速率限制的分组。 响应于测量的业务量，一个实施例自动调整确定哪个分组经受该速率限制（例如，哪些分组可能被丢弃）的信誉分数的范围，例如但不限于增加或减少所测量的业务量。 例如，在流量增加期间，可以选择具有较差信誉的分组流量进行该速率限制，然后当所测量的业务量消失时，可以相应地改变信誉分数的范围以允许更多的测量流量。

公开(公告)号：US20130176845A1

公开(公告)日：2013-07-11

申请号：US13347653

申请日：2012-01-10

申请人： Stefan Olofsson ,  Pradosh Mohapatra ,  Pranav Piyushbhai Mehta ,  Arjun Sreekantaiah

发明人： Stefan Olofsson ,  Pradosh Mohapatra ,  Pranav Piyushbhai Mehta ,  Arjun Sreekantaiah

IPC分类号： H04L12/26

CPC分类号： H04L45/22 ,  H04L45/02 ,  H04L45/04 ,  H04L45/28 ,  H04L45/70

摘要： In one embodiment, a packet switching device determines backup forwarding paths based on route distinguisher correlation values. A route distinguisher correlation value is some value associated with multiple routes, which allows a packet switching device to consider routes associated with a same route distinguisher correlation value, but having different route distinguishers and a same prefix to be considered as going to a same destination. Examples of route distinguisher correlation value used in one embodiment include, but are not limited to: scalar values, a route distinguisher of a different route, a virtual private network associated with a different route; a route target associated with the a different route; or a Border Gateway Protocol (BGP) Next-hop address associated with a different route.

摘要翻译： 在一个实施例中，分组交换设备基于路由识别器相关值来确定备份转发路径。 路由识别器相关值是与多个路由相关联的一些值，允许分组交换设备考虑与相同路由识别器相关值相关联的路由，但是具有不同的路由标识符和相同前缀被考虑进入相同目的地。 一个实施例中使用的路由识别器相关值的示例包括但不限于：标量值，不同路由的路由标识符，与不同路由相关联的虚拟专用网; 与不同路线相关联的路线目标; 或与不同路由相关联的边界网关协议（BGP）下一跳地址。

公开(公告)号：US20130142036A1

公开(公告)日：2013-06-06

申请号：US13310748

申请日：2011-12-03

申请人： Shamit Dipak Kapadia ,  Zhifang Zeng

发明人： Shamit Dipak Kapadia ,  Zhifang Zeng

IPC分类号： G06F11/00

CPC分类号： H04L49/552 ,  H04L1/08 ,  H04L45/22 ,  H04L45/245 ,  H04L45/28 ,  H04L49/30 ,  H04L69/14 ,  H04L69/40 ,  Y02D50/30

摘要： In one embodiment, a packet switching device sends packets to be sent from a single link of a bundled link interface to multiple egress network processing units (on a same or different line cards). A single one of these multiple egress network processing units is configured to be in the active mode sending particular sets of packets. The other egress network processing units are configured for these particular sets of packets to be in the non-active mode, and hence, will correspondingly drop these particular sets of packets. In case of failure, an egress network processing unit can quickly (e.g., changing a flag) be changed to the active mode to quickly reduce or eliminate loss of packets.

摘要翻译： 在一个实施例中，分组交换设备将要从捆绑链路接口的单个​​链路发送的分组发送到多个出口网络处理单元（在相同或不同的线路卡上）。 这些多个出口网络处理单元中的单个一个被配置为处于主动模式，发送特定的分组集合。 其他出口网络处理单元被配置为这些特定的分组集合处于非活动模式，并且因此将相应地丢弃这些特定的分组集合。 在发生故障的情况下，出口网络处理单元可以快速（例如，改变标志）被改变到活动模式，以快速减少或消除分组丢失。

公开(公告)号：US20130089097A1

公开(公告)日：2013-04-11

申请号：US13253674

申请日：2011-10-05

申请人： Clarence Filsfils ,  Stefano Benedetto Previdi ,  Ian Michael Charles Shand ,  John H. W. Bettink

发明人： Clarence Filsfils ,  Stefano Benedetto Previdi ,  Ian Michael Charles Shand ,  John H. W. Bettink

IPC分类号： H04L12/56

CPC分类号： H04L45/741 ,  H04L45/04

摘要： In one embodiment, a packet switching device is configured to convert an Internet Protocol Version 6 (IPv6) destination address, of a received particular IPv6 packet, to a second, shorter destination address. This second destination address is then used to determine forwarding information for the received IPv6 packet, which is forwarded accordingly. In one embodiment, this second address is a 32-bit address, and in particular, an Internet Protocol Version 4 (IPv4) address. Thus, one embodiment can use the IPv4 forwarding infrastructure of a packet switching device for determining how to forward IPv6 packets. In a network according to one embodiment, packets are encapsulated in an IPv6 packet using an IPv6 destination address (that can be converted to an IPv4 address) of an egress edge packet switching device. Thus, core packet switching devices can forward IPv6 packets using IPv4 lookup operations.

摘要翻译： 在一个实施例中，分组交换设备被配置为将接收到的特定IPv6分组的因特网协议版本6（IPv6）目的地地址转换为第二较短的目的地地址。 然后，该第二目的地地址用于确定所接收的IPv6分组的转发信息，所述转发信息被相应地转发。 在一个实施例中，该第二地址是32位地址，特别是因特网协议版本4（IPv4）地址。 因此，一个实施例可以使用分组交换设备的IPv4转发基础设施来确定如何转发IPv6分组。 在根据一个实施例的网络中，使用出口边缘分组交换设备的IPv6目的地址（可以转换为IPv4地址）将分组封装在IPv6分组中。 因此，核心分组交换设备可以使用IPv4查找操作转发IPv6分组。

公开(公告)号：US20120063450A1

公开(公告)日：2012-03-15

申请号：US12883080

申请日：2010-09-15

申请人： Carlos M. Pignataro ,  Stewart Frederick Bryant ,  Jim Guichard ,  David Delano Ward

发明人： Carlos M. Pignataro ,  Stewart Frederick Bryant ,  Jim Guichard ,  David Delano Ward

IPC分类号： H04L12/56

CPC分类号： H04L45/68

摘要： Data path processing information is included in the pseudowire layer of pseudowire packets in order to provide information for use in the data path processing of data (e.g., a packet), typically, but not always, included in the payload of the pseudowire packet itself. The pseudowire packet typically includes in corresponding fields: a pseudowire label for identifying a pseudowire type; a pseudowire control word; and payload data. The pseudowire type identifies the structure of the pseudowire control word field and the payload field, including the location of data path meta data, such as in the pseudowire control word field or payload field. This data path meta data identifies one or more attributes for use in processing the payload data.

摘要翻译： 数据路径处理信息被包括在伪线分组的伪线层中，以便提供用于在伪线分组本身的有效载荷中通常但并不总是包括在数据（例如，分组）的数据路径处理中的信息。 伪线分组通常包括在相应的字段中：用于识别伪线类型的伪线标签; 伪线控制字; 和有效载荷数据。 伪线类型识别伪线控制字字段和有效载荷字段的结构，包括数据路径元数据的位置，例如在伪线控制字字段或有效载荷字段中。 该数据路径元数据标识用于处理有效载荷数据的一个或多个属性。

公开(公告)号：US20110206047A1

公开(公告)日：2011-08-25

申请号：US12754609

申请日：2010-04-06

申请人： Siva Prasad Donthamsetty ,  Kulkarni Hrishikesh Vishwas ,  Lilian Sylvia Fernandes ,  Michael R. Smith ,  Srinath Mohanraj

发明人： Siva Prasad Donthamsetty ,  Kulkarni Hrishikesh Vishwas ,  Lilian Sylvia Fernandes ,  Michael R. Smith ,  Srinath Mohanraj

IPC分类号： H04L12/56

CPC分类号： H04L12/4641 ,  H04L29/12028 ,  H04L61/103

摘要： In providing seamless migration of virtual or physical devices among networks of a virtual local area network (VLAN) such as one spanning multiple data centers, a same virtual anycast Medium Access Control (VMAC) is used for reaching default gateways in virtual and/or physical devices. Each network is typically configured such that source MAC learning for the VMAC should happen only for packets coming from the local default gateway. In this manner, when a device is migrated between networks of the VLAN, the same IP address and corresponding MAC address (typically still residing in the MAC cache of the migrated device) can be used to reach the local default gateway.

摘要翻译： 为了在诸如跨越多个数据中心的虚拟局域网（VLAN）的网络之间提供虚拟或物理设备的无缝迁移，使用相同的虚拟任播媒体访问控制（VMAC）来达到虚拟和/或物理中的默认网关 设备。 每个网络通常被配置为使得用于VMAC的源MAC学习应仅发生在来自本地默认网关的分组。 以这种方式，当在VLAN的网络之间迁移设备时，可以使用相同的IP地址和相应的MAC地址（通常仍然驻留在迁移的设备的MAC缓存中）到达本地默认网关。

公开(公告)号：US20110158253A1

公开(公告)日：2011-06-30

申请号：US12647426

申请日：2009-12-25

申请人： Nandita Dukkipati ,  Sangtae Ha ,  Vijaynarayanan Subramanian ,  Flavio Giovanni Bonomi

发明人： Nandita Dukkipati ,  Sangtae Ha ,  Vijaynarayanan Subramanian ,  Flavio Giovanni Bonomi

IPC分类号： H04J3/22

CPC分类号： H04L47/283 ,  H04L1/0002 ,  H04L1/1809 ,  H04L1/1825 ,  H04L1/187 ,  H04L1/205 ,  H04L47/193 ,  H04L47/27 ,  H04L69/16 ,  H04L69/163 ,  Y02D50/10

摘要： In response to a detected loss of previously transmitted information by an apparatus communicating with a remote device (e.g., using TCP), the rate of transmission of information is increased by the apparatus in response to attributing the detected loss of previously transmitted information as not being caused by congestion. This attribution of the packet loss is typically determined based on roundtrip delays between sent information and received corresponding acknowledgments, which may be used directly or indirectly, such as by estimating network queuing delays based on the measured roundtrip delays.

摘要翻译： 响应于通过与远程设备通信的设备（例如，使用TCP）检测到的先前发送的信息的丢失，响应于检测到的先前发送的信息的丢失归因于信息的传输速率不是 造成拥堵。 分组丢失的归属通常基于所发送的信息和接收到的相应确认之间的往返延迟来确定，这可以直接或间接地使用，例如通过基于所测量的往返延迟来估计网络排队延迟。