Arista Networks, Inc.

Sahil Midha

Padmanabh Ratnakar

Vijay Rangarajan

Petr Budnik

Abdul Haseeb Jehangir

Piyush Lodhi

Rohit Shukla

Systems and methods in which a network switch detects a dropped packet and automatically generates a report with information on the dropped packet. Additionally, a visibility packet that includes the dropped packet and one or more additional headers is generated. The headers are used to route the visibility packet to the pipeline of the network switch that originally processed the dropped packet. The headers also include a visibility indicator that causes the pipeline to store visibility data. As the visibility packet is processed by the pipeline, information (visibility data) generated during the processing of the packet is stored in a visibility memory. The visibility data is retrieved from the visibility memory and added to the generated report prior to transmitting the report to an external collector for analysis of the packet drop.

Utilization of visibility feature to obtain and incorporate drop reasons into mirror on drop reports

This disclosure presents several embodiments of a device configured to perform inband telemetry tracking. The device is configured to store a flow table that tracks metrics of a detected packet flow that passes through the device. More specifically, the flow table tracks several telemetry metrics, each telemetry metric being specific to a tracking time period, and tracking statics based only on packets of the packet flow that were received during that specific time period. At an end of an export time period (which is longer than a tracking time period), the device transmits all stored telemetry metrics from the flow table to a collector.

Interval flow-based inband telemetry

Methods and systems are described for inband telemetry. The system receives a plurality of packets, each packet comprising a portion with INT data. The system identifies a packet flow from a source device to a destination device in the plurality of packets and calculates a telemetry metric based on INT data of a plurality of packets of the packet flow. Then the system forwards the calculated telemetry metric to an INT collector.

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Karnataka, India

Sahil Midha