- Written by Shyam Kota
- Posted on 4月 18, 2018
- Updated on 10月 24, 2018
- 8655 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 4月 18, 2018
- Updated on 10月 24, 2018
- 8549 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 4月 23, 2018
- Updated on 5月 14, 2018
- 8078 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 4月 23, 2018
- Updated on 5月 14, 2018
- 7869 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 4月 23, 2018
- Updated on 5月 14, 2018
- 8112 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 4月 18, 2018
- Updated on 5月 13, 2018
- 9119 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 4月 23, 2018
- Updated on 2月 4, 2022
- 8418 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 4月 23, 2018
- Updated on 12月 23, 2021
- 8376 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 4月 23, 2018
- Updated on 5月 14, 2018
- 8225 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 4月 23, 2018
- Updated on 3月 30, 2023
- 15460 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 4月 18, 2018
- Updated on 2月 6, 2022
- 10215 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 5月 17, 2018
- Updated on 5月 17, 2018
- 8397 Views
EOS 4.20.5F introduces support for disabling local interface, when a fault is signaled by the remote peer. The
- Written by May Young
- Posted on 6月 24, 2021
- Updated on 5月 19, 2025
- 13735 Views
This feature is available when configuring Layer2 EVPN or EVPN IRB. As described in RFC7432 section 15
- Written by Baptiste Covolato
- Posted on 4月 23, 2018
- Updated on 5月 14, 2018
- 8250 Views
This feature allows the possibility to enable/disable the hardware watchdog. By default the hardware watchdog is
- Written by Stefan Rebaud
- Posted on 5月 17, 2018
- Updated on 8月 20, 2024
- 12911 Views
EOS-4.20.5 adds support for hardware-accelerated sFlow on compatible R2 platforms.
- Written by Kaladhar Musunuru
- Posted on 4月 18, 2018
- Updated on 5月 13, 2018
- 8115 Views
This feature provides support for per interface ingress packet and byte counters for both IPv4 and IPv6.
- Written by Shyam Kota
- Posted on 4月 23, 2018
- Updated on 4月 23, 2018
- 7931 Views
The route map feature 'invert result' has been added to the 'match community' and 'match extcommunity' statements
- Written by Kartic Bhargav
- Posted on 4月 23, 2018
- Updated on 5月 15, 2018
- 9175 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 4月 23, 2018
- Updated on 6月 29, 2023
- 8749 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 4月 18, 2018
- Updated on 5月 13, 2018
- 8167 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 4月 18, 2018
- Updated on 4月 18, 2018
- 8287 Views
This document describes two features that allow dynamic metric change for IS IS based on interface speed.
- Written by Arpit Bansal
- Posted on 4月 23, 2018
- Updated on 11月 7, 2024
- 10454 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. IS-IS Traffic Engineering (IS-IS TE) feature extends IS-IS protocol in EOS to carry TE attributes as part of its Link State Protocol Data Units (LSPs). Note that IS-IS in EOS only acts as a carrier for TE attributes and it is not used by any processing (e.g. SPF).
- Written by Ramakrishnan G
- Posted on 4月 18, 2018
- Updated on 6月 22, 2022
- 11354 Views
The L2EVPN MPLS feature is available when configuring BGP in the multi agent routing protocol model.
- Written by Vijay Mahadevan
- Posted on 4月 18, 2018
- Updated on 12月 8, 2020
- 14731 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 4月 23, 2018
- Updated on 5月 14, 2018
- 8686 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 4月 23, 2018
- Updated on 5月 14, 2018
- 8702 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 4月 18, 2018
- Updated on 7月 21, 2023
- 9201 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 9月 30, 2015
- Updated on 1月 2, 2025
- 15901 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 4月 18, 2018
- Updated on 5月 13, 2018
- 8773 Views
The management tech support policy provides the capability to efficiently manage the output of "show tech support"
- Written by Prakhar Rastogi
- Posted on 4月 23, 2018
- Updated on 5月 5, 2025
- 10412 Views
MLAG Smart System Upgrade (SSU) provides the ability to upgrade the EOS image of an MLAG switch with minimal traffic disruption.
- Written by Wendi Liu
- Posted on 4月 23, 2018
- Updated on 12月 17, 2020
- 9290 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 4月 23, 2018
- Updated on 5月 8, 2019
- 17358 Views
This document provides an Arista specific solution to deliver multicast traffic in a Vxlan environment where L2
- Written by Mihyar Baroudi
- Posted on 4月 23, 2018
- Updated on 4月 25, 2018
- 8913 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 4月 23, 2018
- Updated on 4月 23, 2018
- 8124 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 4月 23, 2018
- Updated on 5月 14, 2018
- 8448 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 4月 23, 2018
- Updated on 4月 23, 2018
- 7434 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 4月 23, 2018
- Updated on 5月 20, 2025
- 7278 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 4月 23, 2018
- Updated on 2月 5, 2022
- 9429 Views
Prior to this feature, Strata platforms (Please see Platform compatibility) used to support only destinationMac
- Written by Neeraj Joseph
- Posted on 4月 23, 2018
- Updated on 10月 17, 2024
- 10557 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 4月 18, 2018
- Updated on 5月 13, 2018
- 7546 Views
The "Ping and Traceroute Source Configuration" feature provides the ability to configure a source interface for the
- Written by Utkarsha Verma
- Posted on 4月 18, 2018
- Updated on 2月 26, 2020
- 7590 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 4月 23, 2018
- Updated on 12月 7, 2022
- 8850 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 4月 23, 2018
- Updated on 5月 14, 2018
- 7267 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 4月 23, 2018
- Updated on 6月 24, 2018
- 8848 Views
This TOI describes the features details and any caveats of Stateful Switchover (SSO) support for Sand modular
- Written by Michael Sparacio
- Posted on 4月 23, 2018
- Updated on 4月 23, 2018
- 9961 Views
This feature adds the ability to filter out Syslog messages based on POSIX extended regular expressions. Messages
- Written by James Shephard
- Posted on 4月 23, 2018
- Updated on 4月 6, 2022
- 8136 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 4月 23, 2018
- Updated on 5月 16, 2018
- 8123 Views
This article describes user defined TCAM (Ternary Content Addressable Memory) profiles usage in Tap Aggregation.
- Written by Lavanya Conjeevaram
- Posted on 7月 25, 2018
- Updated on 7月 25, 2018
- 8016 Views
Media Access Control Security (MACsec) is an industry standard security technology that provides secure
- Written by Bhagatram Janarthanan
- Posted on 4月 23, 2018
- Updated on 2月 5, 2022
- 7299 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 4月 23, 2018
- Updated on 5月 14, 2018
- 7492 Views
This feature reduces switch downtime during an upgrade. In lieu with Arista ASU2, Vxlan ASU2 guarantees Vxlan flows