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Santa Clara, CA, United States

Arista Networks is a computer networking company headquartered in Santa Clara, California, USA. The company designs and sells multilayer network switches to deliver software-defined networking solutions for large datacenter, cloud computing, high-performance computing and high-frequency trading environments. Arista's products include an array of 10/40/100 Gigabit Ethernet low-latency cut-through switches, including the 7124SX, which remained the fastest switch using SFP+ optics through September 2012, with its sub-500ns latency, as well as the 7500 series, Arista’s award-winning modular 10G/40G/100Gbit/s switch. Arista's own Linux-based network operating system, EOS , runs on all Arista products. Wikipedia.

Arista Networks | Date: 2015-08-18

A method and apparatus of a device that updates a software image for a network element is described. In an exemplary embodiment, a device receives a signal to update the network element with the new software image, where the network element includes a plurality of hardware forwarding engines and a control plane. The device further boots the control plane with the new software image, where the booting is accomplished without restarting the control plane. In one embodiment, the device boots the control plane by chain booting from a current software image to the new software image. The device additionally restarts and reconfigures the plurality of hardware forwarding engines. In a further embodiment, the device additionally prefills one or more queues in the hardware forwarding engines with keep-alive messages. These keep-alive messages are transmitted during the time that the control plane is being restarted. In a further embodiment, the hardware forwarding engines are reconfigured without restarting them.

A method for determining that a defect applies to a network device that includes receiving, at a monitoring module, network device information from the network device. The network device information includes state information for the network device and does not include hardware and software version information. The method includes storing, in a network device database, the network device information from the network device and receiving, at the monitoring module, defect information about a defect. The defect information includes network device criteria specifying what state information is required for a network device to be affected by the defect. The method includes storing the defect information in a defect database, determining that the defect applies to the network device based on analyzing the network device information and the defect information from their respective databases, and, based on the determination, informing a defect alert recipient that the defect applies to the network device.

Arista Networks | Date: 2014-08-12

A method and system for tracking and managing network flows including receiving a first flow counter value for a flow of first flows and determining that the flow is an elephant flow. The method further includes obtaining flow egress port information by determining an egress port on a switch for each of the first flows, obtaining port congestion information for the switch, where the port congestion information includes port congestion data for each egress port, and selecting, based on the port congestion information and the flow egress port information, a new egress port for the flow, and sending a request to update a switch chip on the switch, where the request specifies that subsequently received packets for the flow are to be forwarded out of the new egress port.

Arista Networks | Date: 2014-03-26

A method and system for enforcing network topology. The method includes receiving, at a first port on a first switch, a second role associated with a second switch, where the second switch is connected to the first switch using the first port, and where the first switch is associated with a first role. The method further includes making a first determination, using the first role, the second role, and a network topology policy, that the first switch should not be connected to the second switch. Sending, in response to the first determination, a first alert to an alert recipient, where the first alert specifies that the first switch is improperly connected to the second switch.

Arista Networks | Date: 2015-01-09

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.

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