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61. 发明公开

EP3158694A1 SYSTEMS AND METHODS FOR PERFORMING OPERATIONS ON NETWORKS USING A CONTROLLER 有权转让
标题翻译：系统和方法的操作的实施在网络上使用控制装置
公开(公告)号：EP3158694A1
公开(公告)日：2017-04-26
申请号：EP15747664.9
申请日：2015-07-17
申请人： Big Switch Networks Inc.
发明人： WU, Xin , BAJPAI, Rajneesh , SHERWOOD, Robert, W. , RAMASUBRAMANIAN, Srinivasan , MAIER, Gregor, Mathias , LANE, Richard, Leegan , CHIANG, Kenneth, Hsinchao , YANG, Mei
IPC分类号： H04L12/803 , H04L12/26
摘要： A controller implemented on computing equipment may control switches in a network. The controller may provide flow tables that implement network policies to the switches to control packet forwarding through the network. The controller may provide debug table entries to the switches for use in a debug table that is separate from the flow table. The debug table entries may match incoming network packets and increment corresponding counters on the switches. The controller may retrieve count information from the counters for performing debugging operations on the network. For example, the controller may identify conflicts between fields of a selected flow table entry, determine whether elephant packet flows are present between switches, determine whether desired load balancing is being performed, determine whether a network path has changed, determine whether packet loss has occurred, and/or determine whether network packets are taking undesired paths based on the retrieved count information.
摘要翻译：的控制器实现在计算设备上可控制网络中的交换机。该控制器可以提供流表没有实现网络策略向开关通过网络来控制分组转发。该控制器可以提供调试表条目的开关，用于在调试表使用所做的是从流表分开。调试表条目可以匹配上的开关进入网络分组，并且增量相应的计数器。控制器可检索计数器计数的信息在网络上进行调试操作。对于实施例，控制器可以识别所选择的流表条目的字段之间的冲突，确定性矿无论象分组流是开关之间存在的，确定性的矿井无论期望负载平衡正在执行的，确定性的矿井无论网络路径已改变的，确定性的矿是否发生分组丢失和/或确定性矿无论网络分组正在基于检索到的计数信息不期望的路径。

62. 发明公开

EP3138252A1 METHOD AND SYSTEM FOR PROTOCOL INDEPENDENT MULTICASTING IN MULTICHASSIS LINK AGGREGATION DOMAINS 有权
标题翻译： VERFAHREN UND SYSTEMFÜRPROTOKOLLUNABHÄNGIGESMULTICASTING IN MULTICHESIS-VERBINDUNGSAGGREGATIONSDOMÄNEN
公开(公告)号：EP3138252A1
公开(公告)日：2017-03-08
申请号：EP15724122.5
申请日：2015-04-29
申请人： Arista Networks, Inc.
发明人： DUDA, Kenneth, James
IPC分类号： H04L12/931
CPC分类号： H04L12/185 , H04L12/4645 , H04L45/66 , H04L49/201 , H04L49/25 , H04L49/354 , H04L49/40 , H04L49/70
摘要： A method for processing IP multicast packets in a Multichassis Link Aggregation (MLAG) domain. The method includes processing the IP multicast packet using the bridging functionality and the routing functionality implemented by each of the MLAG peers to process the IP multicast packets.
摘要翻译：一种在多机架链路聚合（MLAG）域中处理IP组播数据包的方法。该方法包括使用桥接功能处理IP组播分组，以及由每个MLAG对等体实现的路由功能来处理IP组播分组。

63. 发明公开

EP3130107A1 APPARATUS AND METHOD FOR LOW LATENCY SWITCHING 有权转让
标题翻译： VORRICHTUNG UND VERFAHREN ZUM SCHALTEN MIT NIEDRIGER LATENZ
公开(公告)号：EP3130107A1
公开(公告)日：2017-02-15
申请号：EP14899656.4
申请日：2014-12-03
申请人： Metamako Technology LP
发明人： SNOWDON, David , THOMAS, Charles , MCDAID, Scott , POWLES, Lindsay
IPC分类号： H04L12/20 , H04L12/801 , H04L12/861 , H04L12/875 , H04L12/701 , H04L12/747 , G06F15/163 , G06F15/17 , G06F13/00
摘要： A method of data switching. Data is received at least one input port of a crosspoint switch. The crosspoint switch configurably casts the data to at least one output port of the crosspoint switch. The or each output port of the crosspoint switch is connected to a respective input of a logic function device such as a FPGA. The logic function device applies a logic function to data received from the or each output port of the crosspoint switch, such as address filtering or multiplexing, and outputs processed data to one or more respective logic function device output interfaces. Also, a method of switching involving circuit switching received data to an output while also copying the data to a higher layer function.
摘要翻译：数据交换方法。数据接收交叉点交换机的至少一个输入端口。交叉点开关可配置地将数据投射到交叉点开关的至少一个输出端口。交叉点开关的每个输出端口连接到诸如FPGA的逻辑功能器件的相应输入端。逻辑功能器件对从交叉点交换机的每个输出端口接收到的数据（例如地址过滤或复用）应用逻辑功能，并将处理的数据输出到一个或多个相应的逻辑功能设备输出接口。此外，涉及电路切换接收数据到输出的切换方法，同时也将数据复制到较高层功能。

64. 发明公开

EP2802109A1 System and method of a shared memory hash table with notifications 有权
标题翻译：系统与Verfahrenfüreine gemeinsam genutzte Speicher-Hash-Tabelle mit Benachrichtigungen
公开(公告)号：EP2802109A1
公开(公告)日：2014-11-12
申请号：EP14167803.7
申请日：2014-05-09
申请人： Arista Networks, Inc.
发明人： Holbrook, Hugh W. , Ritchie, Duncan Stuart , Sapa, Sebastian , Capper, Simon Francis
IPC分类号： H04L12/743 , G06F17/30
CPC分类号： G06F3/0604 , G06F3/0614 , G06F3/0638 , G06F3/0653 , G06F3/0655 , G06F3/067 , G06F3/0673 , G06F17/30348 , H04L45/7453
摘要： A method and apparatus of a device that includes a shared memory hash table that notifies one or more readers of changes to the shared memory hash table is described. In an exemplary embodiment, a device modifies a value in the shared memory hash table, where the value has a corresponding key. The device further stores a notification in a notification queue that indicates the value has changed. In addition, the device invalidates a previous entry in the notification queue that indicates the value has been modified. The device signals to the reader that a notification is ready to be processed.
摘要翻译：描述了一种包括共享存储器散列表的装置的方法和装置，该共享存储器散列表向一个或多个读取器通知对共享存储器散列表的改变。在示例性实施例中，设备修改共享存储器散列表中的值，其中该值具有对应的密钥。设备还将通知存储在指示值已更改的通知队列中。此外，设备使通知队列中的先前条目无效，表示该值已被修改。该设备向读写器发信号通知已准备好处理。

65. 发明公开

EP2801914A1 System and method for broadcasting data to multiple hardware forwarding engines 有权
标题翻译：系统和Verfahren zurÜbertragungvon Daten一个mehrere五金 - Weiterleitungsmodule
公开(公告)号：EP2801914A1
公开(公告)日：2014-11-12
申请号：EP14167802.9
申请日：2014-05-09
申请人： Arista Networks, Inc.
发明人： Holbrook, Hugh W. , Sellappa, Sriram , Nuckolls, Neal Thomas
IPC分类号： G06F13/28 , G06F12/10 , H04L12/723 , H04L12/931
摘要： A method and apparatus of a device that broadcasts data to multiple hardware forwarding engines is described. In an exemplary embodiment, a central processing unit of the device receives the data to broadcast to the plurality of hardware forwarding engines. The device further writes the data to a broadcast log. In addition, the device transmits a signal to one or more co-processors that the data is available to be read, wherein each of the plurality of hardware forwarding corresponds to one of the one or more co-processors. Each of these co-processors reads the data in the broadcast log by receiving the signal that the data is ready to be read from the broadcast log. In addition, each co-processor determines a broadcast log entry for the data for that co-processor. Each co-processor further reads the data from the broadcast log entry via a direct memory access in memory that stores the broadcast log and the plurality of hardware forwarding engines use the data to process network traffic.
摘要翻译：描述了向多个硬件转发引擎广播数据的设备的方法和装置。在示例性实施例中，设备的中央处理单元接收数据以广播到多个硬件转发引擎。设备还将数据写入广播日志。另外，设备向一个或多个协处理器发送数据可用于读取的信号，其中多个硬件转发中的每一个对应于一个或多个协处理器中的一个。这些协处理器中的每一个通过接收从准备从广播日志读取的数据的信号来读取广播日志中的数据。另外，每个协处理器确定用于该协处理器的数据的广播日志条目。每个协处理器通过存储广播日志的存储器中的直接存储器访问进一步从广播日志条目读取数据，并且多个硬件转发引擎使用数据来处理网络流量。

66. 发明公开

EP4414867A1 ROUTING POLICIES WITH ROUTING CONTROL FUNCTIONS (RCFS) HAVING HELPER FUNCTION SUPPORT AND STORAGE FOR ROUTE ATTRIBUTES 审中-公开
公开(公告)号：EP4414867A1
公开(公告)日：2024-08-14
申请号：EP24157073.8
申请日：2024-02-12
申请人： Arista Networks, Inc.
发明人： Cronin, David , Vafai, Keon M , Birmiwal, Sharad
IPC分类号： G06F21/10 , H04L41/08
CPC分类号： G06F21/62
摘要： A routing control function (RCF) program tool includes syntax for invoking helper functions to facilitate manipulating route attributes in a routing policy. Helper functions include functions to manipulate the autonomous system (AS) path attribute. Storage strategies for storing the AS path are based on whether the AS path is in a read-only access mode in the routing policy or the AS path is in a read-write access mode. The AS path is stored in a space-efficient representation when the path is being accessed for reading. For read-write access, the AS path is stored in an access-efficient representation.

67. 发明公开

EP4412172A1 PLACEMENT OF HOSTS BASED ON AUTHENTICATION SERVER STATUS 审中-公开
公开(公告)号：EP4412172A1
公开(公告)日：2024-08-07
申请号：EP24154654.8
申请日：2024-01-30
申请人： Arista Networks, Inc.
发明人： KARKI, Siddarth , CHENG, Wenyi , SINGHVI, Manish , RAJOGOPAL, Ganesan
IPC分类号： H04L43/10 , H04L9/40
CPC分类号： H04L63/0892 , H04L63/08 , H04L43/10 , H04L43/0811 , H04L41/0645
摘要： Systems and methods for the tracking and use of the status of authentication servers by a network device are disclosed. Embodiments as disclosed may maintain a responsiveness status reflecting the responsiveness of each authentication server in a network at a network device utilized as an authenticator. When a request for authentication is received from a host at the network device the status of each of the plurality of the authentication servers can be checked. Only those authentication servers indicated as responsive may be utilized to attempt authentication. If the status of all authentication servers indicates that all the authentication servers are in an unresponsive state, an unresponsive action can be taken based without actually attempting to authenticate the host using those authentication servers

68. 发明公开

EP4404521A1 DETECTING CONFIGURATION COLLISIONS BETWEEN MULTIPLE CONFIGURATION CLIENTS 审中-公开
公开(公告)号：EP4404521A1
公开(公告)日：2024-07-24
申请号：EP24152821.5
申请日：2024-01-19
申请人： Arista Networks, Inc.
发明人： Chertov, Roman Olegovich , Sapa, Sebastian , Neilson, Christopher Elisha , Ripault, Francois Guy Maurice , Fhlannchadha, Ronan Mac
IPC分类号： H04L41/0853 , H04L41/0859 , H04L41/0869 , H04L41/044
CPC分类号： H04L41/044 , H04L41/0869 , H04L41/0856 , H04L41/0859
摘要： Methods and apparatus for enabling detection of configuration changes in a network device. One method uses a configuration counter in a system database of the network device. In response to an atomic submission of CLI commands to a configuration agent and the storing of the corresponding configuration in a system database, the configuration counter is incremented. An OpenConfig module maintains an expected value of the configuration counter and, upon completion of its own command submissions, compares the expected value to the value in the configuration counter. If the two values do not match, it indicates that the configuration counter in the system database has been incremented as a result of a configuration change from a source other than the OpenConfig module. A configuration client can then be notified of the configuration change so that it can revert the configuration to a desired configuration.

69. 发明公开

EP4402880A1 HOST ROUTING WITH VIRTUAL MACHINE MOBILITY 审中-公开
公开(公告)号：EP4402880A1
公开(公告)日：2024-07-24
申请号：EP22812857.5
申请日：2022-10-13
申请人： Arista Networks, Inc.
发明人： LO, Alton , MCCLOGHRIE, Ian , BHATIA, Navdeep
IPC分类号： H04L45/00 , H04L45/76
CPC分类号： H04L45/66 , H04L45/76

70. 发明授权

EP3857841B1 METHOD AND NETWORK ELEMENT FOR PROPAGATING NETWORK TRAFFIC FLOWS BETWEEN END POINTS BASED ON SERVICE AND PRIORITY POLICIES 有权
公开(公告)号：EP3857841B1
公开(公告)日：2024-06-05
申请号：EP19769951.5
申请日：2019-08-30
IPC分类号： H04L12/46 , H04L45/00 , H04L9/40
CPC分类号： H04L63/0272 , H04L63/1458 , H04L12/4633 , H04L45/66 , H04L45/74591

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