- Written by Dileep Ramesh
- Posted on April 29, 2020
- Updated on April 29, 2020
- 2055 Views
The primary challenge with using a switching ASIC as a load balancer has been how to deal with changes in the network
- Written by Kenneth Cheung
- Posted on December 16, 2019
- Updated on December 18, 2020
- 2260 Views
EOS 4.23.1F added basic MLAG support for 7800R3, 7500R3 and 7280R3 platforms. The MLAG features that are currently
- Written by Tarun Jaswanth LNU
- Posted on August 24, 2020
- Updated on March 16, 2023
- 8006 Views
802.1X is an IEEE standard protocol that prevents unauthorized devices from gaining access to the network.
- Written by Michael (Mike) Fink
- Posted on December 22, 2017
- Updated on April 21, 2022
- 8381 Views
Filtered Mirroring allows certain packets to be selected for mirroring, rather than all packets ingressing or egressing a particular port.
- Written by Jonathan Kehler
- Posted on April 15, 2020
- Updated on April 15, 2020
- 2076 Views
Adds the ability to revert to previous behavior where BGP and static routes could resolve over BGP aggregates (when
- Written by Alex Monjushko
- Posted on April 29, 2020
- Updated on April 29, 2020
- 2019 Views
4.24.0F adds Accelerated Software Upgrade (ASU) support to the 7170 series. Accelerated Software Upgrade
- Written by Sulyab Thottungal Valapu
- Posted on April 17, 2020
- Updated on April 17, 2020
- 2424 Views
BFD for static routes enables monitoring of directly connected next hop reachability using a BFD session. This is
- Written by Kenneth Blanc
- Posted on June 6, 2017
- Updated on February 15, 2021
- 2489 Views
BFD Stateful Switchover (SSO) allows for a switchover from an active supervisor to a standby supervisor where BFD
- Written by Josh Pfosi
- Posted on April 20, 2020
- Updated on April 22, 2020
- 2234 Views
This feature implements RFC3107 that allows carrying a label stack with BGP route updates, using multi protocol BGP.
- Written by Yaonan Liang
- Posted on April 20, 2020
- Updated on April 20, 2020
- 1997 Views
This feature limits the maximum number of routes that BGP can advertise to a peer. When the maximum
- Written by Jason Shamberger
- Posted on April 20, 2020
- Updated on February 11, 2022
- 3648 Views
RPKI provides a mechanism to validate the originating AS of an advertised prefix. EOS support
- Written by Joel Katticaran
- Posted on April 15, 2020
- Updated on April 16, 2020
- 2132 Views
This change adds a global toggle to BGP communities that allow for community sharing to be enabled/disabled for all
- Written by Rahul Verma
- Posted on April 15, 2020
- Updated on April 15, 2020
- 2073 Views
Burst size feature works in conjunction with the shape rate feature and allows configuring the amount of data in
- Written by Trevor Mendez
- Posted on April 17, 2020
- Updated on February 5, 2022
- 2531 Views
Segment Routing Traffic Engineering Policy (SR TE) aka SR Policy makes use of Segment Routing (SR) to allow a headend
- Written by Chitra Ramachandran
- Posted on April 15, 2020
- Updated on April 15, 2020
- 1928 Views
Add support for configuring admin distance for OSPFv3 external routes, without this OSPFv3 would always install
- Written by Jonathan Doyle
- Posted on April 23, 2018
- Updated on December 23, 2021
- 1874 Views
By default, counters are polled from hardware every 2 seconds. This enhancement allows this period to be configured,
- Written by Xujia Cao
- Posted on August 16, 2018
- Updated on May 4, 2020
- 2299 Views
DHCP relay agent uses one of the addresses configured on the interface as the source IP when relaying messages to the
- Written by José Rios
- Posted on April 21, 2020
- Updated on April 21, 2020
- 2479 Views
DirectFlow is a feature that allows the user to steer traffic by matching on packet headers and/or metadata using the
- Written by Sridhar Nagarajan
- Posted on April 15, 2020
- Updated on April 15, 2020
- 1936 Views
EOS 4.24.0 adds support for egress IPv6 RACLs without using packet recirculation. So, by default, egress IPv6 ACL
- Written by Ali Jafri
- Posted on April 20, 2020
- Updated on May 15, 2020
- 2379 Views
Security MAC ACLs can be used to permit and/or deny ethernet packets on the egress port by matching on the following
- Written by Aaron Bamberger
- Posted on April 23, 2020
- Updated on August 26, 2022
- 2694 Views
E-Tree is an L2 EVPN service (defined in RFC8317) in which each attachment circuit (AC) is assigned a role of Root or Leaf.
- Written by Wade Carpenter
- Posted on April 24, 2020
- Updated on January 27, 2023
- 5620 Views
EVPN MPLS VPWS (RFC 8214) provides the ability to forward customer traffic to / from a given attachment circuit (AC)
- Written by Alton Lo
- Posted on April 27, 2020
- Updated on April 27, 2020
- 3069 Views
As described in the L3 EVPN VXLAN Configuration Guide, it is common practice to use Layer 3 EVPN to provide multi
- Written by VIKAS NARAYANAPPA
- Posted on April 15, 2020
- Updated on April 15, 2020
- 2115 Views
A pseudowire is usually transported over a single network path in order to preserve the packet ordering of each
- Written by Deepak Sebastian
- Posted on November 12, 2019
- Updated on June 9, 2020
- 2758 Views
This feature adds support for offloading BFD Transmit path to hardware (ASIC) for specific types of BFD sessions.
- Written by Rahul Vasist
- Posted on April 20, 2020
- Updated on April 26, 2021
- 2873 Views
EOS 4.24.0 adds support for hardware accelerated sFlow on R3 systems. Without hardware acceleration, all sFlow
- Written by Raghavendra Rao
- Posted on May 14, 2020
- Updated on May 14, 2020
- 2355 Views
The hardware based implementation of the firewall uses a segment security model. In the segment security model,
- Written by Binglai Niu
- Posted on April 24, 2020
- Updated on April 27, 2020
- 2348 Views
On network devices, when a route is programmed, a certain portion of hardware resources is allocated and associated
- Written by Pintu Kumar
- Posted on April 20, 2020
- Updated on April 21, 2020
- 2747 Views
When two sites of a VPN are connected to PE routers from different Autonomous Systems (AS), the PE routers cannot
- Written by Bharath Somayaji
- Posted on November 12, 2019
- Updated on November 12, 2019
- 2717 Views
IP Locking is an EOS feature configured on an Ethernet Layer 2 port. When enabled, it ensures that a port will only
- Written by Chris Roche
- Posted on April 20, 2020
- Updated on April 26, 2021
- 1982 Views
The IS IS maximum LSP size feature provides the ability to configure the maximum LSP size that the IS IS protocol will
- Written by Arpit Bansal
- Posted on September 30, 2015
- Updated on April 22, 2020
- 1911 Views
Level 1 2 routers set attached bit in their Level 1 LSPs to indicate their reachability to the rest of the network. A
- Written by Ajay Chhatwal
- Posted on May 15, 2020
- Updated on November 23, 2022
- 729 Views
L2 protocol packets - LLDP, LACP and STP are trapped to the CPU by default. This feature allows for disabling the per protocol trap on a given set of interfaces.
- Written by Dawon Lee
- Posted on August 17, 2018
- Updated on April 20, 2020
- 2746 Views
Lanz Mirroring feature allows users to automatically mirror traffic queued as a result of congestion to either CPU or
- Written by Xin Guang (Tony) Du
- Posted on August 25, 2016
- Updated on November 23, 2020
- 4269 Views
The LDP pseudowire feature provides support for emulating Ethernet connections over a Multiprotocol Label
- Written by Sean Hope
- Posted on May 8, 2020
- Updated on September 21, 2021
- 2686 Views
MAP T is a double stateless NAT64 translation technology. It allows an internet service provider to share IPv4
- Written by Robert Esposito
- Posted on April 27, 2020
- Updated on October 27, 2022
- 10789 Views
Arista switches provide several mirroring features. Filtered mirroring to CPU adds a special destination to the
- Written by Wendi Liu
- Posted on April 27, 2020
- Updated on April 27, 2020
- 2559 Views
Network address translation (NAT) is a common method used to remap one IP address space into another by modifying the
- Written by Allyn Wade
- Posted on August 27, 2019
- Updated on May 8, 2020
- 3672 Views
Octa is a process which combines OpenConfig and certain TerminAttr functionality, primarily with the intent of
- Written by Kushagra Mohan
- Posted on March 18, 2020
- Updated on June 16, 2022
- 2197 Views
This feature enables per port TC-To-COS mapping, where TC represents Traffic-Class and COS represents Vlan tag PCP bits. While at present there is a global TC-To-COS mapping, we can use the TC-To-COS feature to create custom profiles which can be applied to the required interfaces.
- Written by Aditya Donthi Srinivasa
- Posted on April 17, 2020
- Updated on September 30, 2020
- 2628 Views
Port Security: Protect mode (PortSec Protect) is newly added to the Port Security feature and is designed to restrict
- Written by Shyam Kota
- Posted on April 15, 2020
- Updated on October 11, 2021
- 1915 Views
This priority drop feature provides a way to drop packets according to QOS priority when the device ingress maximum
- Written by Kaladhar Musunuru
- Posted on May 4, 2020
- Updated on August 16, 2021
- 2217 Views
This feature introduces support for ACL configuration on VXLAN decapsulated packets. The configured ACL rules will
- Written by Chitra Ramachandran
- Posted on April 15, 2020
- Updated on September 7, 2020
- 1889 Views
This document describes the feature that allows redistribution of routes from ISIS to OSPFv3 running on a device.
- Written by Deeksha Srivastava
- Posted on April 16, 2020
- Updated on April 22, 2020
- 2345 Views
When there are multiple VRFs on the device and there is a need to share routes between them, typically for shared
- Written by Todor Nikolov
- Posted on April 20, 2020
- Updated on April 20, 2020
- 2795 Views
In addition to aliasing only the first token in a CLI command, EOS now supports full command aliasing using regular
- Written by Phillip Jie
- Posted on April 16, 2020
- Updated on April 16, 2020
- 2018 Views
This article describes the support for specifying User Defined Fields (UDF) in Router ACLs including IPv4 and IPv6
- Written by Manoharan Sundaramoorthy
- Posted on September 4, 2018
- Updated on February 5, 2022
- 5869 Views
Segment Routing Traffic Engineering Policy (SR TE) aka SR Policy makes use of Segment Routing (SR) to allow a headend
- Written by Quentin L'Hours
- Posted on May 14, 2020
- Updated on May 14, 2020
- 2014 Views
Support for negotiating and receiving IPv6 unicast and IPv6 labeled unicast (6PE) updates from a BGP peer.
- Written by Phillip Jie
- Posted on April 16, 2020
- Updated on April 16, 2020
- 1970 Views
This article describes the support for specifying User Defined Fields (UDF) in Sub interface ACLs including IPv4 and