- Written by Tula Kraiser
- Posted on June 23, 2021
- Updated on June 23, 2021
- 6469 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 October 17, 2024
- 25409 Views
802.1X is an IEEE standard protocol that prevents unauthorized devices from gaining access to the network.
- Written by Tony Truong
- Posted on March 14, 2024
- Updated on March 14, 2024
- 2807 Views
The 7280CR3-36S series include the ability to toggle ports Ethernet33-36 between pairs of 200G QSFP56 ports and a single 400G QSFP-DD port on the odd Ethernet port, disabling the corresponding even Ethernet port. The supported speed capabilities of QSFP-DD ports vary depending on which hardware port group is selected. This document details how to configure the hardware port groups on QSFP-DD ports.
- Written by Nandan Saha
- Posted on August 24, 2020
- Updated on May 22, 2024
- 11163 Views
The BGP-LS extension allows IGPs (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 19, 2024
- 10566 Views
RPKI provides a mechanism to validate the originating AS of an advertised prefix.
- Written by Zhuang Liu
- Posted on June 25, 2021
- Updated on June 25, 2021
- 6359 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
- 6174 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
- 6785 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
- 8123 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
- 7404 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 May 9, 2024
- 11312 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
- 8107 Views
Normally the ingress router in the following diagram has no control over an autonomous system border router’s
- Written by May Young
- Posted on June 24, 2021
- Updated on June 24, 2021
- 10409 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
- 7360 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 January 11, 2024
- 8297 Views
This feature introduces the support for IPv4 ACL configuration under GRE and IPsec tunnel interfaces. The configured ACL rules are applied to a tunnel terminated GRE packet i.e. any IPv4-over-GRE-over-IPv4 that is decapsulated by the GRE tunnel-interface on which the ACL is applied or a packet terminated on IPsec tunnel
- Written by Aman Aman-Ul-Haq
- Posted on March 9, 2021
- Updated on December 1, 2023
- 10956 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.
- Written by Phil Whineray
- Posted on August 20, 2020
- Updated on October 13, 2021
- 7188 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
- 11972 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
- 9455 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 July 31, 2024
- 6079 Views
This feature enables IPv6 neighbor discovery (ND) proxies for IPv6 subnets on routed ports, L3 subinterfaces, and VLAN interfaces. IPv6 ND Proxy on VLAN interfaces support requires additional TCAM profile configuration. When enabling IPv6 ND proxy, all IPv6 ND Neighbor Solicitation (NS) packets will be trapped to the control plane instead of being forwarded. In response, IPv6 ND Neighbor Advertisement (NA) packets with the corresponding interface router MACs will be sent back.
- Written by Tanushree Bansal
- Posted on June 21, 2021
- Updated on October 27, 2021
- 6371 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
- 6031 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 July 30, 2024
- 13739 Views
Segment Routing provides mechanism to define end-to-end paths within a topology by encoding paths as sequences of sub-paths or instructions. These sub-paths or instructions are referred to as “segments”. IS-IS Segment Routing (henceforth referred to as IS-IS SR) provides means to advertise such segments through IS-IS protocol.
- Written by Ramakrishnan G
- Posted on April 18, 2018
- Updated on June 22, 2022
- 8758 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
- 8285 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 13, 2024
- 14939 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. The L2 Protocol Forwarding feature provides a mechanism to control the behavior of L2 protocol frames received on a port or subinterface.
- Written by Jeff Hornsberger
- Posted on December 16, 2020
- Updated on April 19, 2022
- 8074 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 August 12, 2024
- 8294 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
- 7944 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
- 11682 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 July 17, 2024
- 37493 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
- 8160 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
- 6627 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
- 7222 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
- 7626 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 January 25, 2024
- 7743 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
- 13286 Views
Private VLAN is a feature that segregates a regular VLAN broadcast domain while maintaining all ports in the same IP
- Written by Sujit Kumar Sah
- Posted on June 18, 2021
- Updated on June 21, 2021
- 6004 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 September 25, 2024
- 15791 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
- 6447 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
- 9155 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
- 7350 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 July 19, 2024
- 17117 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
- 5902 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
- 8345 Views
Port wide port security: Port security with address limit on the port configured by the existing shutdown mode port
- Written by Anil Joshi
- Posted on July 9, 2020
- Updated on April 4, 2024
- 6683 Views
This document describes the support of VxLAN Bridging and Routing on the R3 series of DCS 7280, 7500 and 7800 Arista