- Written by Kevin Amiraux
- Posted on September 30, 2015
- Updated on March 9, 2023
- 2677 Views
Arista switches provide several mirroring features. Filtered mirroring to CPU adds a special destination to the mirroring features that allows the mirrored traffic to be sent to the switch supervisor. The traffic can then be monitored and analyzed locally without the need of a remote port analyzer. Use case of this feature is for debugging and troubleshooting purposes.
- Written by Mihyar Baroudi
- Posted on December 9, 2015
- Updated on May 29, 2019
- 3877 Views
This article covers two distinct but related features: Filtered Mirroring and Mirroring to GRE Tunnel. Filtered
- Written by Shamit Kapadia
- Posted on September 30, 2015
- Updated on September 30, 2015
- 4284 Views
In an MLAG setup, routing on a switch (MLAG peer) is possible using its own bridge/system MAC, VARP MAC or VRRP MAC.
- Written by Som Neema
- Posted on September 30, 2015
- Updated on September 30, 2015
- 3081 Views
MLAG currently checks for basic MLAG configuration to be consistent (e.g. domain id) before formation with the peer.
- Written by Tarun Soin
- Posted on February 15, 2018
- Updated on July 11, 2019
- 4403 Views
When MLAG peer link goes down, the secondary peer assumes the primary peer is down/dead, and takes over the primary
- Written by Navneet Sinha
- Posted on June 29, 2016
- Updated on November 17, 2016
- 1957 Views
In an MLAG setup, periodic TCP/UDP heartbeats are sent over peer link to ensure IP connectivity between peers. Prior
- Written by Hemanth Murthy
- Posted on February 8, 2017
- Updated on December 17, 2020
- 2937 Views
If an MLAG flaps on one peer, then we may have to remap the MAC addresses learned, such that the reachability is via the
- Written by Lavanya Conjeevaram
- Posted on November 22, 2017
- Updated on September 4, 2019
- 2290 Views
The feature MP BGP Multicast provides a way to populate the MRIB (Multicast Routing Information Base). MRIB is an
- Written by Mayukh Saubhasik
- Posted on May 1, 2015
- Updated on December 22, 2017
- 2146 Views
EOS 4.15.0F adds support for MPLS encapsulation of IP packets in EOS. The functionality is exposed through two
- Written by Max Xiao
- Posted on May 1, 2015
- Updated on February 5, 2022
- 2060 Views
Multiprotocol Label Switching (MPLS) is a networking process that replaces complete network addresses with short
- Written by Anil Joshi
- Posted on June 29, 2016
- Updated on November 3, 2022
- 2643 Views
MPLS-over-GRE encapsulation support in EOS 4.17.0 enables tunneling IPv4 packets over MPLS over GRE tunnels. This feature leverages next-hop group support in EOS. With this feature, IPv4 routes may be resolved via MPLS-over-GRE next-hop group to be able to push one MPLS label and then GRE encapsulate the resulting labelled IPv4 packet before sending out of the egress interface.
- Written by Ajay Chhatwal
- Posted on March 31, 2017
- Updated on August 15, 2017
- 1969 Views
This feature allows the Arista switch to act as the tunnel head for an MPLS tunnel and is exposed through two
- Written by Soumen Biswas
- Posted on April 24, 2015
- Updated on February 5, 2022
- 2826 Views
While migrating from PVST to MSTP, or vice verse, the network engineer may choose not to run MSTP throughout the
- Written by Allen Shih
- Posted on November 22, 2017
- Updated on November 22, 2017
- 2649 Views
Multi hop BFD allows for liveness detection between systems whose path may consist of multiple hops. With an
- Written by Shelly Chang
- Posted on November 22, 2017
- Updated on December 22, 2017
- 2127 Views
Multicast Only Fast Reroute (MoFRR) is a feature based on PIM sparse mode (PIM SM) protocol to minimize packet loss in a
- Written by Karan Jagjitkumar
- Posted on June 29, 2016
- Updated on February 5, 2022
- 2013 Views
LANZ adds support for monitoring congestion on backplane (or fabric) ports on DCS 7304, DCS 7308, DCS 7316, DCS
- Written by Prashant Kumar
- Posted on April 13, 2015
- Updated on February 5, 2022
- 1953 Views
In Tap Aggregation mode, an interface can be configured as tap or tool port. Tap ports are used to 'tap' the traffic and
- Written by Mihyar Baroudi
- Posted on December 8, 2015
- Updated on February 5, 2022
- 1915 Views
The NAT Application Gateway (ALG) feature allows FTP connections between client server to be translated using
- Written by Jikai Yin
- Posted on June 29, 2016
- Updated on June 23, 2022
- 2667 Views
NAT Peer State Synchronization feature provides redundancy and resiliency for Dynamic NAT across a pair of devices in an attempt to mitigate the risk of single NAT device failure. Each switch advertises connection state updates to its peer. State update consists of connection creation, connection state change (TCP mostly) or connection tear down
- Written by Prachi Modi
- Posted on December 11, 2022
- Updated on December 12, 2022
- 449 Views
In the 13.0 release, CloudVision Cognitive Unified Edge (CV-CUE) adds a new report and also includes some enhancements to existing reports.
- Written by Kaladhar Musunuru
- Posted on September 30, 2015
- Updated on January 20, 2023
- 2013 Views
The nexthop group feature allows users to manually configure a set of tunnels. Nexthop group counters provide the ability to count packets and bytes associated with each tunnel nexthop, irrespective of the number of times it appears in one or more nexthop groups. In other words, if a nexthop group entry shares a tunnel resource with another entry, they will also share the same counter.
- Written by Tom Emmons
- Posted on April 13, 2015
- Updated on May 3, 2015
- 1826 Views
Nexthop selection using GRE key allows for nexthop routing selection based on the GRE key of a GRE encapsulated IP
- Written by Lavanya Conjeevaram
- Posted on June 29, 2016
- Updated on February 7, 2022
- 2980 Views
Nexthop group match in PBR policy enables the user to match incoming packets being routed to a specified nexthop group
- Written by Tula Kraiser
- Posted on April 2, 2015
- Updated on May 1, 2015
- 1910 Views
Vmware NSX Controllers expect Hardware VTEPs to monitor the liveness of the Replication Service Node via BFD. In
- Written by Mihyar Baroudi
- Posted on December 8, 2015
- Updated on February 5, 2022
- 2147 Views
The EOS Event Manager feature provides the ability to specify a condition and an action to be carried out when that
- Written by Aparna Karanjkar
- Posted on December 22, 2017
- Updated on February 6, 2022
- 2005 Views
. These are the release notes and configuration guide for the OpenConfig feature available in the 4.20.1F EOS
- Written by Padmini Misra
- Posted on March 29, 2018
- Updated on August 2, 2022
- 12176 Views
These are the release notes and configuration guide for the OpenConfig feature available in the 4.20.2.1F EOS
- Written by Prateek Nigam
- Posted on April 10, 2015
- Updated on May 1, 2015
- 1859 Views
OpenFlow 1.3 protocol is supported in EOS 4.15.0F on DCS 7050 and DCS 7050X series of switches. The switch and the
- Written by Prateek Nigam
- Posted on May 1, 2015
- Updated on May 1, 2015
- 1793 Views
A new forwarding pipeline is being introduced in EOS 4.15.0F which allows the traffic entering the switch to be
- Written by Prateek Nigam
- Posted on September 30, 2015
- Updated on September 30, 2015
- 1897 Views
Action TTL decrement in an OpenFlow flow. OpenFlow 1.3 Group support on DCS 7010 series. Clearing
- Written by Dhruba Jyoti Pokhrel
- Posted on February 20, 2023
- Updated on February 20, 2023
- 221 Views
With the 14.0 release, you can integrate OpenID Connect with a captive portal for authentication. The OpenID Connect integration functionality is available only for captive portals hosted on the Arista Cloud. It is not available if the captive portal is hosted on third-party servers or on the access point.
- Written by David Blease
- Posted on February 8, 2017
- Updated on May 17, 2018
- 2571 Views
The OSPF Non Stop Forwarding (NSF) feature adds support for Graceful OSPF Restart (IETF RFC 3623) and Graceful OSPFv3
- Written by Mihyar Baroudi
- Posted on December 8, 2015
- Updated on December 21, 2015
- 1925 Views
EOS 4.15.3F adds support for configuring auto cost in OSPFv3 for routed ethernet interfaces and LAG interfaces.
- Written by Zeqing Xia
- Posted on May 1, 2015
- Updated on May 1, 2015
- 1906 Views
OSPF distribute list is a policy construct to filter out routes received from OSPF LSAs so that they will not be
- Written by Chris Roche
- Posted on February 8, 2017
- Updated on February 8, 2017
- 1858 Views
The OSPF Max LSA Retransmission Threshold feature adds a configurable limit to the number of LSA update
- Written by Mihyar Baroudi
- Posted on December 8, 2015
- Updated on January 24, 2022
- 2142 Views
OSPF Non Stop Forwarding (NSF) adds support for Graceful OSPF Restart, IETF RFC 3623 . With OSPF Graceful Restart
- Written by Anoop Dawani
- Posted on May 1, 2015
- Updated on February 7, 2022
- 1850 Views
This feature adds authentication support for OSPFv3. Unlike OSPFv2, OSPFv3 does not have authentication fields
- Written by Navneet Sinha
- Posted on June 29, 2016
- Updated on June 29, 2016
- 1940 Views
EOS 4.17.0F adds support for BFD in OSPFv3. BFD provides a faster convergence in scaled deployments where using
- Written by Tanushree Bansal
- Posted on November 22, 2017
- Updated on December 22, 2017
- 1826 Views
EOS release 4.20.1F adds OSPFv3 flood pacing support that allows configuring the minimum interval between the
- Written by Rachee Singh
- Posted on September 30, 2015
- Updated on September 30, 2015
- 1811 Views
In previous releases of EOS, Stub area and NSSA area types were supported for OSPFv3, but without support of the "no
- Written by Lavanya Conjeevaram
- Posted on March 31, 2017
- Updated on April 3, 2017
- 2203 Views
Overlay IPv6 routing over VXLAN Tunnel is simply routing IPv6 packets in and out of VXLAN Tunnels, similar to
- Written by Aditi Vaidya
- Posted on August 23, 2019
- Updated on February 4, 2022
- 1976 Views
This document describes a few enhancements done in Wireless Manager (WM) release 8.8 in respect of AP firmware
- Written by Dhruba Jyoti Pokhrel
- Posted on February 20, 2023
- Updated on February 20, 2023
- 190 Views
With the 14.0 release, you can add device passwords and AP-Server Key passphrase as defined in the password policy. The passwords are based on the password policy and password settings that you configure in CV-CUE.
- Written by Mihyar Baroudi
- Posted on December 8, 2015
- Updated on May 29, 2019
- 1908 Views
This feature provides the capability to mirror special L2 control frames, called the Pause or Priority Flow Control
- Written by Anoop Dawani
- Posted on September 30, 2015
- Updated on July 13, 2018
- 2235 Views
Policy Based Routing (PBR) provides the flexibility of routing according to custom defined policies in a way that
- Written by Brandon Edgren
- Posted on May 1, 2015
- Updated on May 1, 2015
- 1843 Views
Prior to EOS 14.15.0F, if a single packet hit both a PBR and an ACL rule, then only the hardware counters corresponding
- Written by Lavanya Conjeevaram
- Posted on June 29, 2016
- Updated on March 29, 2018
- 2429 Views
The per port per VLAN feature allows application of QoS policies for IP, IPv6 and non IP traffic on a per port per VLAN
- Written by Ahirnish Pareek
- Posted on February 8, 2017
- Updated on February 6, 2022
- 1995 Views
DCS 7010T. DCS 7050X. DCS 7250X. DCS 7260X. DCS 7280E, DCS 7280R. DCS 7300X. DCS 7320X. DCS 7500E,
- Written by Lavanya Conjeevaram
- Posted on June 29, 2016
- Updated on June 29, 2016
- 2404 Views
Per VLAN MAC Learning is a feature to enable/disable mac learning per vlan instead of per port. Using this feature with
- Written by Sahil Midha
- Posted on May 1, 2015
- Updated on May 20, 2015
- 1785 Views
Permitting traffic during ACL updates has been available for traffic steering in tap aggregation mode since EOS