公开(公告)号：US20170302536A1

公开(公告)日：2017-10-19

申请号：US15484274

申请日：2017-04-11

Applicant: Arista Networks, Inc.

Inventor： Robert E. Gilligan ,  Kenneth James Duda

IPC: H04L12/24

CPC classification number: H04L41/069 ,  H04L43/06 ,  H04L43/0817 ,  H04L43/50

Abstract: A method for detecting abnormalities in network element operation. The method includes monitoring at least a portion of the network element for abnormalities and making a determination that an abnormality exists, in response to the monitoring, and based on the determination, tracking the abnormality. An abnormality includes a measured performance that deviates from a nominal performance, but that does not cause erroneous behavior of the network element.

公开(公告)号：US09794141B2

公开(公告)日：2017-10-17

申请号：US13953684

申请日：2013-07-29

Applicant: Arista Networks, Inc.

Inventor： Hugh W. Holbrook ,  Kenneth James Duda ,  Douglas Gourlay ,  Anshul Sadana

IPC: H04L12/26 ,  H04L12/835 ,  H04L12/823 ,  H04L12/801

CPC classification number: G11C5/063 ,  G11C5/02 ,  G11C11/4076 ,  G11C11/4093 ,  H01L25/0657 ,  H01L25/18 ,  H01L27/108 ,  H01L2225/06541 ,  H01L2924/0002 ,  H01L2924/14 ,  H01L2924/19043 ,  H01L2924/3011 ,  H04L43/04 ,  H04L43/062 ,  H04L47/10 ,  H04L47/30 ,  H04L47/32

Abstract: A method and apparatus of a device that determines a cause and effect of congestion in this device is described. In an exemplary embodiment, the device measures a queue group occupancy of a queue group for a port in the device, where the queue group stores a plurality of packets to be communicated through that port. In addition, the device determines if the measurement indicates a potential congestion of the queue group, where the congestion prevents a packet from being communicated within a time period. If potential congestion exists on that queue group, the device further gathers information regarding packets to be transmitted through that port. For example, the device can gather statistics packets that are stored in the queue group and/or new enqueue packets.

公开(公告)号：US09705930B2

公开(公告)日：2017-07-11

申请号：US15155936

申请日：2016-05-16

Applicant: Arista Networks, Inc.

Inventor： Douglas Alan Gourlay ,  Kenneth James Duda

IPC: H04L29/06 ,  H04L12/741 ,  H04L12/931 ,  H04L12/24 ,  H04L12/813 ,  H04L12/927 ,  H04L12/721

CPC classification number: H04L63/20 ,  H04L41/0816 ,  H04L41/0893 ,  H04L45/72 ,  H04L45/74 ,  H04L47/20 ,  H04L47/80 ,  H04L49/354 ,  H04L49/70 ,  H04L63/0876 ,  H04L63/10 ,  H04L63/123

Abstract: A method and system for securing a VXLAN environment, including configuring a default network policy, associated with interfaces of the network device, for dropping all VXLAN frames including a VXLAN attribute; obtaining, by the network device, registered VTEP identifiers; determining, using the registered VTEP identifiers, that an interface of the network device is operatively connected to a registered VTEP associated with a registered VTEP identifier; disassociating the default network policy from the interface based on the determination; receiving, at the interface, a frame; performing a first verification that the frame is a VXLAN frame by examining the frame to determine that the frame includes the VXLAN attribute; performing a second verification to determine that the VXLAN frame includes a registered VTEP identifier; allowing, based on the first verification and the second verification, the network device to process the VXLAN frame; and processing the VXLAN frame.

公开(公告)号：US20170048084A1

公开(公告)日：2017-02-16

申请号：US15335993

申请日：2016-10-27

Applicant: Arista Networks, Inc.

Inventor： Benoit Sigoure ,  Kenneth James Duda

IPC: H04L12/46

CPC classification number: H04L12/4645 ,  H04L12/4633 ,  H04L12/4641 ,  H04L49/354

Abstract: A method for virtual extensible local area network (VXLAN) encapsulation. The method includes receiving a first augmented MAC frame on a first ingress port of a first network device, where the first augmented MAC frame includes a first egress port ID (EPID), a first ingress port ID (IPID), and a first MAC frame. The method further includes identifying a first destination VXLAN tunnel endpoint (VTEP) internet protocol (IP) address based on the first EPID, where the first destination VTEP IP address is associated with a first destination VTEP. The method further includes identifying a source VTEP IP address based on the first IPID, performing VXLAN encapsulation of the first MAC frame to obtain a VXLAN frame, and sending the VXLAN frame to the first destination VTEP via a first egress port of the first network device.

Abstract translation: 一种用于虚拟可扩展局域网（VXLAN）封装的方法。 该方法包括在第一网络设备的第一入口上接收第一增强MAC帧，其中第一增强MAC帧包括第一出口端口ID（EPID），第一入口端口ID（IPID）和第一MAC帧 。 该方法还包括基于第一EPID识别第一目的地VXLAN隧道端点（VTEP）网际协议（IP）地址，其中第一目的地VTEP IP地址与第一目的地VTEP相关联。 该方法还包括基于第一IPID识别源VTEP IP地址，执行第一MAC帧的VXLAN封装以获得VXLAN帧，并且经由第一网络设备的第一出口端口将VXLAN帧发送到第一目的地VTEP 。

公开(公告)号：US09397912B2

公开(公告)日：2016-07-19

申请号：US13960197

申请日：2013-08-06

Applicant: Arista Networks, Inc.

Inventor： Tal Rusak ,  Kenneth James Duda

IPC: H04L12/26 ,  H04L12/939

CPC classification number: H04L43/10 ,  H04L43/0811 ,  H04L43/12 ,  H04L49/555

Abstract: A method for active network fabric management. The method includes receiving a probe packet by a termination beacon, where the probe packet is associated with a stream, the stream is identified using an origin beacon identification (ID) for an origin beacon, a stream source IP address, a stream destination IP address, an L2 origin interface, and a TTL value or an IP Hop value. The method further includes generating, after receiving the probe packet and after the expiration of a probe rate request (PRR) refresh timer, a rate control packet (RCP) by the termination beacon where the RCP includes a PRR for the stream, and sending the RCP to the origin beacon using an origin beacon IP address, where the origin beacon IP address is different than the stream source IP address.

Abstract translation: 一种主动网络结构管理的方法。 该方法包括通过终端信标接收探测分组，其中探测分组与流相关联，使用原始信标的源信标标识（ID），流源IP地址，流目的IP地址 ，L2起始接口，TTL值或IP Hop值。 该方法还包括在接收到探测分组之后并且在探测速率请求（PRR）刷新定时器期满之后）生成通过终止信标的速率控制分组（RCP），其中RCP包括用于流的PRR，并且发送 RCP使用原始信标IP地址到源信标，其中原始信标IP地址不同于流源IP地址。

公开(公告)号：US12267244B2

公开(公告)日：2025-04-01

申请号：US17385516

申请日：2021-07-26

Applicant: Arista Networks, Inc.

Inventor： Kenneth James Duda

IPC: H04L47/17 ,  H04L45/00 ,  H04L47/2441 ,  H04L47/50 ,  H04L101/622

Abstract: In general, the invention relates to a method for programming a network device to perform routing of data packets between and/or within networks. More specifically, the method provides a more efficient process for updating the forwarding equivalence class (FEC) table with minimal impacting of the mappings in the forward information base (FIB) of the network device.

公开(公告)号：US11895154B2

公开(公告)日：2024-02-06

申请号：US17371891

申请日：2021-07-09

Applicant: Arista Networks, Inc.

Inventor： Douglas Alan Gourlay ,  Kenneth James Duda

IPC: H04L9/40 ,  H04L45/00 ,  H04L49/00 ,  H04L41/0816 ,  H04L47/80 ,  H04L41/0893 ,  H04L47/20 ,  H04L45/74 ,  H04L49/354

CPC classification number: H04L63/20 ,  H04L41/0816 ,  H04L41/0893 ,  H04L45/72 ,  H04L45/74 ,  H04L47/20 ,  H04L47/80 ,  H04L49/354 ,  H04L49/70 ,  H04L63/0876 ,  H04L63/10 ,  H04L63/123

Abstract: A method and system for maintaining persistent network policies for a virtual machine (VM) that includes determining a name of the VM executing on a first host connected to a first network device; binding the name of the VM to a network policy for the VM on the first network device; acquiring from VM management software, using the name of the VM, a universally unique identifier (UUID) of the VM; associating the UUID to the network policy on the first network device; applying the network policy for the VM on the first network device; subscribing to receive notifications from the VM management software of changes to the configuration of the VM corresponding to the UUID; receiving notification from the VM management software of a configuration change made to the VM corresponding to the UUID; and updating the network policy of the VM to reflect the configuration change of the VM.

公开(公告)号：US11736500B2

公开(公告)日：2023-08-22

申请号：US16991787

申请日：2020-08-12

Applicant: Arista Networks, Inc.

Inventor： Kenneth James Duda

IPC: H04L9/40 ,  H04L43/0817 ,  H04L45/02

CPC classification number: H04L63/1416 ,  H04L43/0817 ,  H04L45/02 ,  H04L63/145

Abstract: A network manager manages a network topology. The network manager includes storage for storing a signature of a network device of the network topology. The network manager also includes a device state manager that obtains a signature of a device that participates in the network topology, the signature indicating that the device is operating in an undesired manner; makes a determination, based on signature, that the device should be in a quarantined state; in response to making the determination: generates a quarantine state update that indicates that the device is in the quarantined state; and sends, by the network manager, the quarantine state update to the device. The quarantine state update does not indicate how the quarantined state is implemented.

公开(公告)号：US20230018873A1

公开(公告)日：2023-01-19

申请号：US17874222

申请日：2022-07-26

Applicant: Arista Networks, Inc.

Inventor： Kenneth James Duda ,  Venkata Ramchandra Murthy Jonnalagadda

IPC: H04L12/46

Abstract: A method for processing network traffic data units (NTDUs). The method includes receiving, by a wireless access point (WAP), a NTDU from a client device. The method further includes identifying a virtual tunnel upon which to transmit the NTDU, where the virtual tunnel is associated with a network device and transmitting, via the virtual tunnel, the NTDU to the network device.

公开(公告)号：US10904035B2

公开(公告)日：2021-01-26

申请号：US16430393

申请日：2019-06-03

Applicant: Arista Networks, Inc.

Inventor： Kenneth James Duda ,  Venkata Ramchandra Murthy Jonnalagadda

IPC: H04L12/46

Abstract: A method for processing network traffic data units (NTDUs). The method includes receiving, by a wireless access point (WAP), a NTDU from a client device. The method further includes identifying a virtual tunnel upon which to transmit the NTDU, where the virtual tunnel is associated with a network device and transmitting, via the virtual tunnel, the NTDU to the network device.