- Written by Alexandru Suciu
- Posted on January 22, 2019
- Updated on March 4, 2022
- 6631 Views
As of EOS release 4.19.0F, breakout mode is not supported on any ports between 11-26 (inclusive) and ports between 47-62 (inclusive), and these ports can only run at 1x40GbE or 1x100GbE
- Written by Shyam Kota
- Posted on February 14, 2019
- Updated on September 4, 2019
- 8790 Views
This document explains how to configure and deploy Arista MSS with Fortinet FortiGate firewalls (also called
- Written by Todor Nikolov
- Posted on February 27, 2018
- Updated on February 5, 2022
- 1074 Views
Support for asset tagging aids hardware identification by the use of user supplied strings. Fixed
- Written by Pranav Choudhary
- Posted on January 21, 2019
- Updated on June 22, 2021
- 6861 Views
BGP conditional route inject functionality is available with the ribd routing protocol model since EOS 4.21.0F
- Written by Jason Shamberger
- Posted on March 11, 2020
- Updated on April 18, 2024
- 14893 Views
EOS 4.21.3F introduces support for BGP Flowspec, as defined in RFC5575 and RFC7674. The typical use case is to filter or redirect DDoS traffic on edge routers.
- Written by Vivek Subbarao
- Posted on January 18, 2019
- Updated on February 14, 2022
- 8266 Views
This feature adds support for a dynamic configuration model to eliminate the need for the network administrator to
- Written by Gary McCarthy
- Posted on February 8, 2017
- Updated on October 13, 2021
- 7258 Views
The default policy behavior is to permit/accept all routes when a BGP neighbor or peer group is configured with a route
- Written by Saurav Arora
- Posted on January 18, 2019
- Updated on September 3, 2020
- 7063 Views
Neighbor default originate feature is used to advertise a default route to the neighbor (peer or peer group) even when
- Written by Manoj Agiwal
- Posted on September 30, 2015
- Updated on July 12, 2024
- 16531 Views
BGP Non Stop Forwarding (NSF) aims to minimize the traffic loss when the the following scenarios occur:
- Written by Gary McCarthy
- Posted on January 22, 2019
- Updated on February 5, 2022
- 6264 Views
BGP out delay is an existing feature in EOS where an optional delay could be applied prior to advertising a route. The
- Written by Andrew Li
- Posted on January 23, 2019
- Updated on July 19, 2024
- 6985 Views
The BGP Prefix Independent Convergence (PIC) Edge feature refers to fast re convergence of traffic destined for BGP
- Written by Shyam Kota
- Posted on January 21, 2019
- Updated on January 21, 2019
- 5486 Views
4.21.3F introduces support for Bidirectional PIM in the platforms listed below. The TOI for the support in earlier
- Written by Jifei Song
- Posted on January 21, 2019
- Updated on January 23, 2019
- 6302 Views
Starting from EOS 4.21.3F, license for feature BRCM STRATA SCHW TP, which stands for Broadcom Strata Single Chip
- Written by Shyam Kota
- Posted on January 21, 2019
- Updated on January 21, 2019
- 5283 Views
The CLI command “switchport dot1q vlan tag disallowed” disallows all the vlan tagged packets sent on L2
- Written by Alex Volinsky
- Posted on January 17, 2019
- Updated on January 23, 2019
- 5816 Views
DCS 7280SRM 40CX2 is a 1RU fixed system, which has two CFP2 ports (41 and 42), capable of hosting either CFP2 DCO, or
- Written by Dinu Chacko
- Posted on January 18, 2019
- Updated on January 18, 2019
- 6018 Views
If a network uses deep packet inspection for its ECMP, RFC7432 recommends deployments to use a control word in L2 EVPN
- Written by Ismaël Fezzaz
- Posted on January 18, 2019
- Updated on January 21, 2019
- 5763 Views
Log archiving is used to periodically (every minute) copy logs and core files from tmpfs filesystems /var/log and
- Written by Ronish Kalia
- Posted on January 21, 2019
- Updated on January 23, 2019
- 7953 Views
Explicit Congestion Notification (ECN) is an extension to the Internet Protocol and to the Transmission Control
- Written by Shyam Kota
- Posted on February 14, 2019
- Updated on February 14, 2019
- 7565 Views
ContainerTracer provides a composite view of the physical network topology and Kubernetes. Kubernetes and CVX must
- Written by Ronish Kalia
- Posted on January 21, 2019
- Updated on January 21, 2019
- 5362 Views
Headroom buffers are used to store packets when ingress admission control checks fail to store them in both the
- Written by Scott Smith
- Posted on January 22, 2019
- Updated on January 23, 2019
- 5605 Views
This is an addendum to the “IP in IP decapsulation” document.
- Written by Peter Rufer
- Posted on January 18, 2019
- Updated on January 18, 2019
- 5720 Views
This feature sets the default administrative status of physical Ethernet interfaces to
- Written by Kiranmayi Kasarapu
- Posted on February 8, 2017
- Updated on April 18, 2018
- 7793 Views
DirectFlow runs alongside the existing layer 2/3 forwarding plane, enabling a network architecture that
- Written by Emil Maric
- Posted on January 18, 2019
- Updated on January 23, 2019
- 6182 Views
On Algomatch platforms, expansions and encoding transformations on IP prefixes are performed before attempting to
- Written by Johnny Chen
- Posted on January 21, 2019
- Updated on January 21, 2019
- 5656 Views
This feature tracks the number of IPv4 unicast, IPv6 unicast and IPv4 multicast packets routed by each physical port.
- Written by Prasoon Saurav
- Posted on January 22, 2019
- Updated on January 22, 2019
- 5602 Views
The feature is close to Assured Forwarding Per Hop Behavior where the classification of the incoming packets is based
- Written by Michelle Wang
- Posted on January 18, 2019
- Updated on February 5, 2022
- 6260 Views
SWI Image Verification is a feature that allows one to determine if their SWI image has been tampered with. It verifies
- Written by Jeff Wen
- Posted on January 21, 2019
- Updated on November 30, 2023
- 9165 Views
In the traditional data center design, inter-subnet forwarding is provided by a centralized router, where traffic traverses across the network to a centralized routing node and back again to its final destination. In a large multi-tenant data center environment this operational model can lead to inefficient use of bandwidth and sub-optimal forwarding.
- Written by Alton Lo
- Posted on January 23, 2019
- Updated on January 23, 2019
- 13999 Views
“MLAG Domain Shared Router MAC” is a new mechanism to introduce a new router MAC to be used for MLAG TOR
- Written by Madhu Sudan
- Posted on February 14, 2019
- Updated on July 12, 2023
- 6687 Views
Many Layer 2 VXLAN deployments span more than one physical data center (DC) location. Typically, each DC has several
- Written by Gaofeng Yue
- Posted on January 23, 2019
- Updated on January 23, 2019
- 8014 Views
FIB compression allows us to program routes into the hardware more efficiently. Routes are programmed in the route
- Written by Jeff Chan
- Posted on January 18, 2019
- Updated on January 23, 2019
- 7070 Views
Until now, all PTP packets received on Arista switches with PTP boundary mode enabled will automatically be sent to
- Written by Ketan Kotak
- Posted on January 17, 2019
- Updated on September 5, 2019
- 6524 Views
All modern high density electronic circuit chips are susceptible to naturally occurring phenomenon called single
- Written by Ketan Kotak
- Posted on January 17, 2019
- Updated on August 28, 2019
- 6862 Views
Some of Arista’s products may use one or more FPGAs for certain tasks pertaining to controlling one or more of the
- Written by Prajul Sreedharan
- Posted on January 22, 2019
- Updated on January 11, 2024
- 7898 Views
This feature introduces the support for IPv4 ACL configuration under GRE and IPsec tunnel interfaces. The configured ACL rules are applied to a tunnel terminated GRE packet i.e. any IPv4-over-GRE-over-IPv4 that is decapsulated by the GRE tunnel-interface on which the ACL is applied or a packet terminated on IPsec tunnel
- Written by Jonathan Kehler
- Posted on January 22, 2019
- Updated on October 19, 2021
- 6300 Views
This feature introduces the ability to match on 1) any BGP aggregate contributor or 2) a specific BGP aggregate’s
- Written by Adam Calabrigo
- Posted on January 18, 2019
- Updated on January 18, 2019
- 5552 Views
This feature enhances the feature limitation checking when performing Smart System Upgrade (SSU) and enables
- Written by Abhirami Shankar
- Posted on January 21, 2019
- Updated on February 5, 2022
- 13583 Views
This feature allows inter VRF route leaking locally from one VRF into another on the same device. Inter VRF routes can
- Written by Sriram Sellappa
- Posted on January 23, 2019
- Updated on April 21, 2021
- 7275 Views
IPv4 routes of certain prefix lengths can be optimized for enhanced route scale. The feature is described here. This
- Written by Saurav Sarkar
- Posted on January 23, 2019
- Updated on January 23, 2019
- 7015 Views
IPv4 routes of certain prefix lengths can be optimized for enhanced route scale on 7500R, 7280R, 7500R2 and 7280R2
- Written by Vivek Ilangovan
- Posted on January 18, 2019
- Updated on July 20, 2023
- 6172 Views
This feature implements RFC 5310 that allows IS-IS PDUs to be authenticated using following secure hash algorithms (SHA): SHA-1, SHA-224, SHA-256, SHA-384 and SHA-512. The feature is supported in both default and non-default vrf. Unlike the existing authentication scheme based on MD5 and ClearText, with this feature two IS-IS nodes can be configured with different SHA algorithm and secret-key and can still exchange IS-IS PDUs.
- Written by Arnab Das
- Posted on January 22, 2019
- Updated on January 27, 2023
- 6066 Views
EOS version 4.21.3F provides additional clear commands extending what is already available in EOS as described by the below TOI
- Written by Nikhil Goyal
- Posted on November 22, 2017
- Updated on December 23, 2021
- 6262 Views
IS IS Graceful Restart adds support for Restart Signaling for IS IS, IETF RFC 5306. When IS IS is used
- Written by Nikhil Goyal
- Posted on January 21, 2019
- Updated on January 21, 2019
- 5774 Views
This feature provides streaming of the IS IS Link State Database via TerminAttr. The IS IS LSDB is exported to Smash at
- Written by Kaverappa O. T.
- Posted on January 21, 2019
- Updated on January 23, 2019
- 5146 Views
The IS IS minimum remaining lifetime feature ensures that no matter what value of Remaining Lifetime is received, a
- Written by Shyam Kota
- Posted on January 22, 2019
- Updated on January 22, 2019
- 5301 Views
This feature introduces a configurable LSP refresh interval for originating ISIS LSPs. The default
- Written by Shyam Kota
- Posted on January 21, 2019
- Updated on January 21, 2019
- 5269 Views
Sub interface counters provide ability to count packets and bytes incoming and outgoing on L3 sub interfaces. This
- Written by Manuel Mendez
- Posted on September 30, 2019
- Updated on December 16, 2020
- 7698 Views
Subinterfaces divide a single ethernet or port channel interface into multiple logical L3 interfaces based on the
- Written by Shyam Kota
- Posted on January 21, 2019
- Updated on May 7, 2020
- 6788 Views
This feature enables MACsec service for non MACsec capable front panel ports. MACsec over front panel port is
- Written by Coy Humphrey
- Posted on January 21, 2019
- Updated on February 5, 2022
- 6148 Views
Explicit Congestion Notification (ECN) is an IP and TCP extension that facilitates end to end network congestion