- Written by Tula Kraiser
- Posted on June 23, 2021
- Updated on June 23, 2021
- 2878 Views
The 7170 load balancer is a layer 4 load balancer providing high packet processing throughput.
- Written by Tarun Jaswanth LNU
- Posted on August 24, 2020
- Updated on September 21, 2023
- 12252 Views
802.1X is an IEEE standard protocol that prevents unauthorized devices from gaining access to the network.
- Written by Nandan Saha
- Posted on August 24, 2020
- Updated on July 11, 2023
- 4732 Views
The BGP-LS extension allows IGP (OSPF/IS-IS) link state database information to be injected into BGP. This is typically used in deployments where some external component, (like a controller or Path Computation Engine) can do centralized path computations by learning the entire IGP topology through BGP-LS. The controller can then communicate the computed paths based on the BGP-LS updates to the head end device in the network. The mechanism used by the controller to communicate the computed TE paths is outside the scope of this document. Using BGP-LS instead of an IGP peering with the controller to distribute IGP link state information has the following advantages.
- Written by Jason Shamberger
- Posted on April 20, 2020
- Updated on February 11, 2022
- 5256 Views
RPKI provides a mechanism to validate the originating AS of an advertised prefix. EOS support
- Written by Zhuang Liu
- Posted on June 25, 2021
- Updated on June 25, 2021
- 2865 Views
Remove Private AS Ingress is a feature used for removing and replacing private AS numbers from inbound AS paths, so
- Written by Kenneth Cheung
- Posted on June 15, 2021
- Updated on June 15, 2021
- 2823 Views
EOS 4.26.1F release added a platform configuration command to modify the dynamic MAC learning limit threshold on
- Written by Kushagra Mohan
- Posted on June 18, 2021
- Updated on October 18, 2021
- 2836 Views
This feature allows the user to have a custom COS To TC map per subinterfaces. By default,
- Written by Sahil Midha
- Posted on June 14, 2019
- Updated on October 25, 2022
- 3737 Views
This feature can be divided into 3 parts. Enable support for different threshold per Color per TX queue We
- Written by Prashanth Krishnamurthy
- Posted on June 22, 2021
- Updated on June 25, 2021
- 3195 Views
This feature allows configuration of hash seed and hash fields used for LAG and ECMP hash computation. This offers a
- Written by Johnny Chen
- Posted on June 24, 2021
- Updated on August 7, 2023
- 5411 Views
ECMP Hash visibility CLI determines the output interface for an ECMP set based on the flow parameters supplied by the user. Ingress interface, source IP address, destination IP address and IP protocol are the required parameters.
- Written by Andrew Li
- Posted on November 9, 2020
- Updated on December 23, 2021
- 3927 Views
Normally the ingress router in the following diagram has no control over an autonomous system border router’s
- Written by Kallol Mandal
- Posted on June 21, 2021
- Updated on October 26, 2021
- 8084 Views
In the Centralized Anycast Gateway configuration, the Spines are configured with EVPN IRB and are used as the IP
- Written by May Young
- Posted on June 24, 2021
- Updated on June 24, 2021
- 4812 Views
This feature is available when configuring Layer2 EVPN or EVPN IRB. As described in RFC7432 section 15
- Written by Charlotte Fedderly
- Posted on June 22, 2021
- Updated on February 24, 2022
- 3236 Views
Forwarding destination prediction enables visibility into how a packet is forwarded through the switch and allows
- Written by Prajul Sreedharan
- Posted on January 22, 2019
- Updated on November 9, 2022
- 3893 Views
This feature introduces the support for IPv4 ACL configuration under GRE and IPsec tunnel interfaces. The
- Written by Aman Aman-Ul-Haq
- Posted on March 9, 2021
- Updated on July 31, 2023
- 5237 Views
The Segment security feature provides the convenience of applying policies on segments rather than interfaces or subnets. Hosts/networks are classified into segments based on prefixes. Grouping prefixes into segments allows for definition of policies that govern flow of traffic between segments. Policies define inter-segment or intra-segment communication rules, e.g. segment A can communicate with segment B but hosts in segment B can not communicate with each other.
- Written by Phil Whineray
- Posted on August 20, 2020
- Updated on October 13, 2021
- 3185 Views
In rare circumstances, a Single Event Upset may cause an underflow in the free list of buffers of a switch chip. This can
- Written by Neel Neogi
- Posted on December 30, 2020
- Updated on June 8, 2023
- 5750 Views
The document describes the support for dedicated and group ingress policing on interfaces without using QoS policy-maps to match on the traffic and apply policing.
- Written by Bharath Somayaji
- Posted on November 12, 2019
- Updated on November 12, 2019
- 4244 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 Yongxiang Chen
- Posted on June 21, 2021
- Updated on June 22, 2021
- 2746 Views
This feature enables IPv6 neighbor discovery (ND) proxies for IPv6 subnets on routed ports and L3 subinterfaces.
- Written by Tanushree Bansal
- Posted on June 21, 2021
- Updated on October 27, 2021
- 2911 Views
This feature provides support for multiple IS IS instances in the default VRF. Multiple IS IS instances are only
- Written by Shyam Kota
- Posted on June 21, 2021
- Updated on June 22, 2021
- 2758 Views
Route redistribution is a process that allows a network to use a routing protocol to dynamically route traffic based
- Written by Navneet Sinha
- Posted on June 29, 2016
- Updated on January 11, 2023
- 6712 Views
IS IS SR feature provides knobs to configure various types of segments which are distributed as part of IS IS LSPs (Link
- Written by Ramakrishnan G
- Posted on April 18, 2018
- Updated on June 22, 2022
- 4437 Views
The L2EVPN MPLS feature is available when configuring BGP in the multi agent routing protocol model.
- Written by Adam Morrison
- Posted on January 3, 2022
- Updated on January 3, 2022
- 3158 Views
As of EOS 4.22.0F, EVPN all active multihoming is supported as a standardized redundancy solution. For effective
- Written by Prakrati Vidyarthi
- Posted on August 16, 2018
- Updated on September 8, 2023
- 7343 Views
Normally, a switch traps L2 protocol frames to the CPU. However, certain use-cases may require these frames to be forwarded or dropped. And in cases where the L2 protocol frames are forwarded (eg: Pseudowire), we may require the frames to be trapped to the CPU or dropped.
- Written by Jeff Hornsberger
- Posted on December 16, 2020
- Updated on April 19, 2022
- 3750 Views
LSPs formed by LDP normally follow IGP routing. The LDP speaker selects the downstream LSR for a particular prefix as
- Written by Tarun Jaswanth LNU
- Posted on June 14, 2021
- Updated on January 20, 2023
- 3305 Views
Media Access Control Security (MACsec) is an industry standard encryption mechanism that protects all traffic
- Written by Ioana Costea
- Posted on June 15, 2021
- Updated on June 21, 2021
- 3754 Views
Starting with the 4.26.1F release, EOS supports active mixed speed members in a port channel, allowing different
- Written by Binoshmon T B
- Posted on July 22, 2020
- Updated on June 27, 2022
- 6047 Views
The TCP MSS clamping feature involves clamping the maximum segment size (MSS) in the TCP header of TCP SYN packets if it exceeds the configured MSS ceiling limit for the interface. Clamping MSS value helps in avoiding IP fragmentation in tunnel scenarios by ensuring that MSS is small enough to accommodate the extra overhead of GRE and tunnel outer IP headers.
- Written by Jeffrey Nelson
- Posted on June 21, 2021
- Updated on February 2, 2023
- 22966 Views
This feature provides the ability to interconnect EVPN VXLAN domains. Domains may or may not be within the same data
- Written by Ryan Halbrook
- Posted on June 28, 2021
- Updated on June 28, 2021
- 3617 Views
Multipath color is a new multicast multipath mode for controlling PIM RPF selection. In the default multipath
- Written by Nikhil Satish Pai
- Posted on June 23, 2021
- Updated on June 23, 2021
- 2862 Views
In an OSPFv3 Area Border Router (ABR), area filters may be used to prevent specific prefixes from being announced by an
- Written by Shyam Kota
- Posted on June 21, 2021
- Updated on December 15, 2021
- 3225 Views
The per port scheduler compensation feature is used to make adjustments to the packet size seen by the scheduler for
- Written by Utkarsha Verma
- Posted on June 15, 2021
- Updated on June 21, 2021
- 3357 Views
Starting from 4.26.10F release, for LACP and static port channels, EOS will support minimum speed configuration,
- Written by Tom Meng
- Posted on June 21, 2021
- Updated on August 3, 2023
- 3346 Views
Power over Ethernet (PoE) is a way of delivering power and data over the same Ethernet wires. There have been multiple IEEE standards for PoE over the years:
- Written by Rohit Maurya
- Posted on June 21, 2021
- Updated on July 13, 2022
- 6243 Views
Private VLAN is a feature that segregates a regular VLAN broadcast domain while maintaining all ports in the same IP
- Written by Sharad Birmiwal
- Posted on November 4, 2020
- Updated on February 11, 2022
- 9108 Views
Routing control functions (RCF) is a new language that can be used to express BGP route filtering and attribute
- Written by Sujit Kumar Sah
- Posted on June 18, 2021
- Updated on June 21, 2021
- 2652 Views
This feature provides the ability to classify and display misbehaving routes into the following : 1) Routes which are
- Written by Paul Miiller
- Posted on June 14, 2021
- Updated on October 11, 2021
- 6301 Views
The send support bundle feature adds a new CLI command which creates a ZIP file containing a useful set of logs and
- Written by VIKAS NARAYANAPPA
- Posted on June 15, 2021
- Updated on July 14, 2021
- 2969 Views
A pseudowire is usually transported over a single network path in order to preserve the packet ordering of each
- Written by Shyam Kota
- Posted on February 23, 2021
- Updated on July 12, 2023
- 4551 Views
This feature terminates GRE packets on a TapAgg switch by stripping the GRE header and then letting the decapped packets go through the normal TapAgg path. With this feature, we can use an L3 GRE tunnel to transit tapped traffic to the TapAgg switch over an L3 network. That would widely extend the available use cases for TapAgg.
- Written by Robert Spark
- Posted on June 21, 2021
- Updated on September 8, 2023
- 3350 Views
This feature adds support for viewing the Digital Optical Monitoring (DOM) parameters for the optics that support enhanced diagnostics from the CLI. The show commands described later in this document can be used to view the instantaneous values for various modulation parameters like Signal-To-Noise Ratio, Residual Inter Symbol Interference, PAM4 Level Transition Parameters, etc. that such optics support.
- Written by Anirudh Ramesh Iyer
- Posted on May 5, 2021
- Updated on September 4, 2023
- 8937 Views
This article describes how to customize TCAM ( Ternary Content Addressable Memory ) lookup for each feature which uses TCAM.
- Written by Przemyslaw Jacak
- Posted on January 3, 2022
- Updated on January 3, 2022
- 2625 Views
This document describes LLDP’s VLAN Name TLV. It is defined in IEEE 802.1q standard (802.1Q D.2.3) and contains a
- Written by Yuyang Chen
- Posted on June 15, 2021
- Updated on June 21, 2021
- 3789 Views
Port wide port security: Port security with address limit on the port configured by the existing shutdown mode port
- Written by Rahul Kumar Singh
- Posted on June 28, 2021
- Updated on June 28, 2021
- 4144 Views
This article is intended to discuss how to configure the Voice VLAN (phone VLAN) on an Arista switch.
- Written by Anil Joshi
- Posted on July 9, 2020
- Updated on February 2, 2022
- 3280 Views
This document describes the support of VxLAN Bridging and Routing on the R3 series of DCS 7280, 7500 and 7800 Arista