Starting from 4.27.2F, IPFIX sampling introduced the capability to report BGP metadata for routes resolving over various tunnel types (ISIS-SR tunnels, NexthopGroups, etc).  For example BGP over ISIS-SR - BGP nexthop reported: 100.0.0.1

This document describes a new feature of Arista Analytics offering the ability to consolidate Netflow V9 and IPFIX records by grouping those sharing similar identifying characteristics within a configurable time window.

NDR switch sensor aka “monitor security awake” feature provides deep network analysis by doing deep packet inspection of some or all packets of traffic that's forwarded by the switch.

Campus hardware flow tracking allows for extensive and fine grained hardware based flow tracking and management

Arista campus switches allow extensive and fine grained hardware based flow tracking and management features. They

Arista campus switches allow extensive and fine grained hardware based flow tracking and management features. They

Sampled flow tracking with IPFIX export is supported on most of the Arista platforms. User configured sampling rate is used for sampling in ingress and/or egress direction on the configured interfaces. An EOS software agent on CPU processes samples received from hardware, samples are used to create flow records that are exported to IPFIX collectors. Refer to Sampled flow tracking TOI for additional details.

Network administrators require access to flow information that passes through various network elements, for the purpose of analyzing and monitoring their networks. This feature provides access to IP flow information by sampling traffic flows in ingress and/or egress directions on the interfaces on which it is configured.