Arista Networks

About: Arista Networks is a based out in . It is known for research contribution in the topics: Network element & Networking hardware. The organization has 280 authors who have published 289 publications receiving 2497 citations.

System and method of a centralized gateway that coordinates between multiple external controllers without explicit awareness

Abstract: A method and apparatus of a device that restricts data communicated between a plurality of computing management devices and a plurality of computing devices is described. In one embodiment, a gateway receives network connectivity information of a network for a plurality of computing management devices and a plurality of computing devices, where the plurality of computing devices is coupled to the plurality of computing management devices via a plurality of network elements. In addition, the gateway determines a plurality of sub-networks using at least the network connectivity information, wherein for each of the plurality of sub-networks, at least one of the plurality of computing management devices and a subset of the plurality of computing devices is associated with that sub-network. Furthermore, for each of the plurality of sub-networks and for each pair of computing devices in the associated subset of plurality of computing devices, the gateway determines a policy for data being communicated between this pair of computing devices and the gateway configures at least one of the plurality of network elements coupled to this pair of computing devices to allow data communicated between this pair of computing devices using at least the first policy.

Neighbor equivalence groups

Abstract: Techniques for implementing neighbor equivalence groups on a network device are provided, where a neighbor equivalence group is a group of peers of the network device that communicate identical control plane state information for a given network protocol to the network device. In the context of Border Gateway Protocol (BGP), these techniques can include (1) creating, by the network device, a neighbor equivalence group for a set of BGP peers that advertise the same BGP paths to the device, (2) maintaining, by the network device, a single path database for the neighbor equivalence group (rather than one path database for each BGP peer in the group), and (3) immediately processing. by the network device, BGP path update/withdrawal messages received from any of the BGP peers in the group against the single path database, without waiting for the same message to be received from every peer.

Interface for a client of a network device

Abstract: A network device includes an external subscription table, an interpreter, and a state machine. The external subscription table includes a subscription associated with a client. The interpreter is programmed to obtain the subscription; generate an entity, based on the subscription, that produces an output; and notify the client of the output. The state machine is programmed to send the output to the client based on the subscription.

System for network event detection and analysis

Abstract: A method includes receiving a single request to configure a continuous route tracer (CRT) between a first plurality of network devices and a second plurality of network devices and configuring, by a processing device of a control server, the CRT between the first plurality of network devices and the second plurality of network devices. The method further includes receiving a plurality of probe reports corresponding to a plurality of CRT probes sent between the first plurality of network devices and the second plurality of network devices and analyzing the reports to detect one or more anomalies corresponding to a network comprising the first plurality of network devices and the second plurality of network devices. The method further includes providing the one or more anomalies for display.

Time stamp generation

Abstract: Embodiments of the present disclosure include techniques for generating accurate time stamps. In one embodiment, a first timing reference signal corresponding to a first clock domain is combined with a first clock signal corresponding to a second clock domain to produce a second timing reference signal that includes quantization noise. The second timing reference signal is filtered to remove the quantization noise and generate a filtered timing reference signal. The filtered timing reference signal may be sampled in the second clock domain to obtain a time stamp. In one embodiment, a phase locked loop (PLL) is used as the filter. The PLL may generate first and second ramps that correspond to time. One of the ramps may be sampled to obtain a time stamp, for example.