- Written by Prateek Mali
- Posted on August 19, 2020
- Updated on August 31, 2023
- 11732 Views
Access Control Lists (ACL) use packet classification to mark certain packets going through the packet processor pipeline and then take configured action against them. Rules are defined based on various fields of packets and usually TCAM is used to match packets to rules.
- Written by Shelly Chang
- Posted on January 6, 2022
- Updated on January 9, 2023
- 4223 Views
This feature introduces hardware forwarding support of IPv4 multicast traffic over IPv4 GRE tunnel interfaces in Arista Switches.
- Written by James Brinkley
- Posted on April 25, 2022
- Updated on January 5, 2023
- 5196 Views
SWIM (SWI Modularized) is a change to the format of EOS.swi. It is a feature that is mostly internal, but has a few customer visible side-effects one should be mindful of.
- Written by Prasanna Parthasarathy
- Posted on December 23, 2021
- Updated on November 6, 2023
- 6877 Views
SwitchApp is an FPGA based feature available on Arista’s 7130LB-Series and 7132LB-Series platforms. It performs ultra low latency Ethernet packet switching. The port to port latency is a function of the selected SwitchApp profile. Detailed latency measurements are available in the userguide on the Arista Support site.
- Written by Anirudh Ramesh Iyer
- Posted on May 5, 2021
- Updated on September 4, 2023
- 10310 Views
This article describes how to customize TCAM ( Ternary Content Addressable Memory ) lookup for each feature which uses TCAM.
- Written by Isidor Kouvelas
- Posted on February 28, 2022
- Updated on August 25, 2023
- 9122 Views
Virtual Private LAN Service (VPLS) appears in (almost) all respects as an Ethernet type service to customers of a Service Provider (SP). A VPLS glues together several individual LANs across a packet switched network to appear and function as a single bridged LAN.
- Written by Simon Liang
- Posted on September 5, 2021
- Updated on July 11, 2023
- 4442 Views
This document describes the VRF selection policy and VRF fallback feature. A VRF selection policy contains match rules that specify certain criteria (e.g. DSCP, IP protocol) as well as a resulting action to select a VRF in which to do the FIB lookup.