- Written by Shyam Kota
- Posted on April 18, 2018
- Updated on October 24, 2018
- 6332 Views
Instead of statically assigning access VLAN on the authenticator port, it's sometimes desirable to offload the work
- Written by Shyam Kota
- Posted on April 18, 2018
- Updated on October 24, 2018
- 6239 Views
MAC Based Authentication is a facility which allows a set of MAC addresses to be programmed into the RADIUS server.
- Written by Yugant Rana
- Posted on April 23, 2018
- Updated on May 14, 2018
- 5835 Views
This feature allows the DHCP relay agent to insert or modify Converged Cable Access Platform (CCAP) Core IPv6
- Written by Shyam Kota
- Posted on April 23, 2018
- Updated on May 14, 2018
- 5647 Views
EOS's architecture is built around the notion of agents. While the CLI show commands offer great insights into the
- Written by Vasanth Sabavat
- Posted on April 23, 2018
- Updated on May 14, 2018
- 5901 Views
Community Instances offer a method of selecting BGP routes based on count of communities in the communities path
- Written by Josh Pfosi
- Posted on April 18, 2018
- Updated on May 13, 2018
- 6731 Views
This feature adds support for BGP peering over IPv6 link local addresses. As defined in RFC 4007, IPv6 addresses have
- Written by Shyam Kota
- Posted on April 23, 2018
- Updated on February 4, 2022
- 6092 Views
This feature will provide a common encryption key to be used across all protocols to encrypt the neighbor password
- Written by Jonathan Doyle
- Posted on April 23, 2018
- Updated on December 23, 2021
- 6108 Views
By default, counters are polled from hardware every 2 seconds. This enhancement allows this period to be configured,
- Written by Tom Meng
- Posted on April 23, 2018
- Updated on May 14, 2018
- 5963 Views
Starting from EOS 4.20.5F, power supply low input voltage warning can be configured via a CLI command. Prior to the
- Written by Bharath Somayaji
- Posted on April 23, 2018
- Updated on March 30, 2023
- 11968 Views
In VXLAN EVPN deployments, a distributed anycast address is often used as the gateway address for end devices connected to the Vxlan Tunnel End Points (VTEPs). Similarly, in MLAG configurations in a VXLAN environment, ip address virtual could be used on both MLAG peers.
- Written by José Rios
- Posted on April 18, 2018
- Updated on February 6, 2022
- 7617 Views
DirectFlow is a feature that allows the user to steer traffic by matching on packet headers and/or metadata using the
- Written by Sharad Birmiwal
- Posted on May 17, 2018
- Updated on May 17, 2018
- 6121 Views
EOS 4.20.5F introduces support for disabling local interface, when a fault is signaled by the remote peer. The
- Written by Baptiste Covolato
- Posted on April 23, 2018
- Updated on May 14, 2018
- 5977 Views
This feature allows the possibility to enable/disable the hardware watchdog. By default the hardware watchdog is
- Written by Stefan Rebaud
- Posted on May 17, 2018
- Updated on August 20, 2024
- 10128 Views
EOS-4.20.5 adds support for hardware-accelerated sFlow on compatible R2 platforms.
- Written by Kaladhar Musunuru
- Posted on April 18, 2018
- Updated on May 13, 2018
- 5861 Views
This feature provides support for per interface ingress packet and byte counters for both IPv4 and IPv6.
- Written by Shyam Kota
- Posted on April 23, 2018
- Updated on April 23, 2018
- 5700 Views
The route map feature 'invert result' has been added to the 'match community' and 'match extcommunity' statements
- Written by Kartic Bhargav
- Posted on April 23, 2018
- Updated on May 15, 2018
- 6819 Views
Similar to L4 ports, ACL rules can be configured to filter ingress packets based on their IP length (present in the IPv4
- Written by Steve Ulrich
- Posted on April 23, 2018
- Updated on June 29, 2023
- 6458 Views
IS-IS Counters feature adds support to monitor per interface count of received, transmitted and dropped IS-IS PDUs at the Rib/ISIS agent level. The counters start getting incremented once IS-IS is enabled on an interface and persist until IS-IS is disabled on it or the Rib/Isis agent restart.
- Written by Robert Oliveira
- Posted on April 18, 2018
- Updated on May 13, 2018
- 5890 Views
The partial SPF computation avoids a full shortest path computation to achieve quicker convergence and save CPU load
- Written by Przemyslaw Jacak
- Posted on April 18, 2018
- Updated on April 18, 2018
- 5882 Views
This document describes two features that allow dynamic metric change for IS IS based on interface speed.
- Written by Pintu Kumar
- Posted on April 23, 2018
- Updated on February 24, 2023
- 7689 Views
Traffic Engineering (TE) provides a mechanism to network administrators to control the path that a data packet takes, bypassing the standard routing model which uses routes along the shortest path. Traffic engineered paths are generally computed on the head-end routers of the topology based on various constraints (e.g. minimum bandwidth, affinity) configured for those paths and attributes (e.g available bandwidth, color) received from devices in the network topology.
- Written by Ramakrishnan G
- Posted on April 18, 2018
- Updated on June 22, 2022
- 8709 Views
The L2EVPN MPLS feature is available when configuring BGP in the multi agent routing protocol model.
- Written by Vijay Mahadevan
- Posted on April 18, 2018
- Updated on December 8, 2020
- 11657 Views
The L2EVPN MPLS feature is available when configuring BGP in the multi agent routing protocol model. Ethernet VPN
- Written by Nathan Wolfe
- Posted on April 23, 2018
- Updated on May 14, 2018
- 6375 Views
Introduced in EOS 4.20.5, LAG hashing key shift controls how many bits we shift the LAG load balance key.
- Written by Nathan Wolfe
- Posted on April 23, 2018
- Updated on May 14, 2018
- 6360 Views
Introduced in EOS 4.20.5F, LAG ingress interface hashing controls whether the ingress interface is used in the LAG
- Written by Trevor Yu
- Posted on April 18, 2018
- Updated on July 21, 2023
- 6824 Views
LANZ adds support for configuring global thresholds for Ethernet ports on DCS 7020, DCS 7050TX, DCS 7050X2, DCS
- Written by Peter Lam
- Posted on September 30, 2015
- Updated on December 11, 2023
- 10388 Views
Leaf Smart System Upgrade (SSU) provides the ability to upgrade the EOS image with minimal traffic disruption.Note: It is possible that SSU shutdown and bootup are not supported in the same image. If a product has shutdown support in image A and bootup support in a later image B, then SSU upgrade cannot be performed from image A to any images earlier than image B, including image A itself. However, upgrading from image A to image B onwards is allowed.
- Written by Chris Roche
- Posted on April 18, 2018
- Updated on May 13, 2018
- 6407 Views
The management tech support policy provides the capability to efficiently manage the output of "show tech support"
- Written by Wendi Liu
- Posted on April 23, 2018
- Updated on December 17, 2020
- 6834 Views
As of release 4.20.5F, this feature is now available on 7160 series switches. Here is a link to earlier
- Written by Saravanan Balasubramanian
- Posted on April 23, 2018
- Updated on May 8, 2019
- 14398 Views
This document provides an Arista specific solution to deliver multicast traffic in a Vxlan environment where L2
- Written by Mihyar Baroudi
- Posted on April 23, 2018
- Updated on April 25, 2018
- 6383 Views
The EOS Event Handler feature provides the ability to specify a condition and an action to be carried out when that
- Written by Nathan Kitchen
- Posted on April 23, 2018
- Updated on April 23, 2018
- 5852 Views
The SNMP notifications (Trap and Inform messages) that were most recently sent are recorded in a log, as described by
- Written by Padmini Misra
- Posted on April 23, 2018
- Updated on May 14, 2018
- 6147 Views
These are the release notes and configuration guide for the OpenConfig feature available in the 4.20.5F EOS release.
- Written by Andrew Li
- Posted on April 23, 2018
- Updated on April 23, 2018
- 5320 Views
One of the steps in the BGP best path selection algorithm compares the IGP cost of the BGP next hop, preferring the path
- Written by Jeff Hornsberger
- Posted on April 23, 2018
- Updated on May 15, 2018
- 5171 Views
This release adds support for mapping 802.1Q tags to VNIs on a per port basis through OVSDB when using the Hardware
- Written by Sindhuja Sampath
- Posted on April 23, 2018
- Updated on February 5, 2022
- 6997 Views
Prior to this feature, Strata platforms (Please see Platform compatibility) used to support only destinationMac
- Written by Neeraj Joseph
- Posted on April 23, 2018
- Updated on October 17, 2024
- 7781 Views
The PHY test pattern CLI can be used to check the quality of the physical layer for an Ethernet interface. This is done by
- Written by Chris Roche
- Posted on April 18, 2018
- Updated on May 13, 2018
- 5445 Views
The "Ping and Traceroute Source Configuration" feature provides the ability to configure a source interface for the
- Written by Utkarsha Verma
- Posted on April 18, 2018
- Updated on February 26, 2020
- 5440 Views
Prior to EOS 4.20.5, port channel min links feature evaluated minimum links in the following scenarios:
- Written by Josh Pfosi
- Posted on April 23, 2018
- Updated on December 7, 2022
- 6467 Views
This feature adds support for "sequential" processing of route-map 'set ext/community' clauses. This feature is enabled via a configuration knob and there is no change in behavior without enabling this knob. The default route-map processing behavior can be summarized as "add then delete".
- Written by Satish Somanchi
- Posted on April 23, 2018
- Updated on May 14, 2018
- 5155 Views
This feature allows for setting BGP path attribute Multi Exit Discriminator for IGP routes advertised by BGP. This
- Written by Anil Joshi
- Posted on April 23, 2018
- Updated on June 24, 2018
- 6588 Views
This TOI describes the features details and any caveats of Stateful Switchover (SSO) support for Sand modular
- Written by Michael Sparacio
- Posted on April 23, 2018
- Updated on April 23, 2018
- 7324 Views
This feature adds the ability to filter out Syslog messages based on POSIX extended regular expressions. Messages
- Written by James Shephard
- Posted on April 23, 2018
- Updated on April 6, 2022
- 5872 Views
Identity tagging is an existing Tap Aggregation feature that allows a 802.1Q header to be added to packets sent by tool ports with a configurable identity value.
- Written by Roee Bar
- Posted on April 23, 2018
- Updated on May 16, 2018
- 5946 Views
This article describes user defined TCAM (Ternary Content Addressable Memory) profiles usage in Tap Aggregation.
- Written by Lavanya Conjeevaram
- Posted on July 25, 2018
- Updated on July 25, 2018
- 5800 Views
Media Access Control Security (MACsec) is an industry standard security technology that provides secure
- Written by Bhagatram Janarthanan
- Posted on April 23, 2018
- Updated on February 5, 2022
- 5232 Views
VLAN mapping feature provides the ability to map an arbitrary VLAN tag to a particular bridging VLAN on the switch.
- Written by Stephen Liang
- Posted on April 23, 2018
- Updated on May 14, 2018
- 5361 Views
This feature reduces switch downtime during an upgrade. In lieu with Arista ASU2, Vxlan ASU2 guarantees Vxlan flows
- Written by Abhijith Narayan
- Posted on April 24, 2018
- Updated on April 26, 2018
- 5291 Views
This feature makes sure that on a supervisor switchover, VxLAN bridging forwarding state is not affected. In line