- Written by Dileep Ramesh
- Posted on April 29, 2020
- Updated on April 29, 2020
- 6655 Views
The primary challenge with using a switching ASIC as a load balancer has been how to deal with changes in the network
- Written by Kenneth Cheung
- Posted on December 16, 2019
- Updated on July 21, 2023
- 7408 Views
EOS 4.23.1F added basic MLAG support for 7800R3, 7500R3 and 7280R3 platforms. The MLAG features that are currently
- Written by Tarun Jaswanth LNU
- Posted on August 24, 2020
- Updated on October 17, 2024
- 26540 Views
802.1X is an IEEE standard protocol that prevents unauthorized devices from gaining access to the network.
- Written by Michael (Mike) Fink
- Posted on December 22, 2017
- Updated on December 2, 2024
- 14337 Views
Filtered Mirroring allows certain packets to be selected for mirroring, rather than all packets ingressing or egressing a particular port.
- Written by Jonathan Kehler
- Posted on April 15, 2020
- Updated on April 15, 2020
- 7094 Views
Adds the ability to revert to previous behavior where BGP and static routes could resolve over BGP aggregates (when
- Written by Alex Monjushko
- Posted on April 29, 2020
- Updated on April 29, 2020
- 7197 Views
4.24.0F adds Accelerated Software Upgrade (ASU) support to the 7170 series. Accelerated Software Upgrade
- Written by Sulyab Thottungal Valapu
- Posted on April 17, 2020
- Updated on April 17, 2020
- 7427 Views
BFD for static routes enables monitoring of directly connected next hop reachability using a BFD session. This is
- Written by Kenneth Blanc
- Posted on June 6, 2017
- Updated on May 15, 2024
- 8760 Views
BFD Stateful Switchover (SSO) allows for a switchover from an active supervisor to a standby supervisor where BFD
- Written by Jason Shamberger
- Posted on March 11, 2020
- Updated on November 14, 2024
- 16384 Views
EOS 4.21.3F introduces support for BGP Flowspec, as defined in RFC5575 and RFC7674. The typical use case is to filter or redirect DDoS traffic on edge routers.
- Written by Josh Pfosi
- Posted on April 20, 2020
- Updated on April 22, 2020
- 6519 Views
This feature implements RFC3107 that allows carrying a label stack with BGP route updates, using multi protocol BGP.
- Written by Yaonan Liang
- Posted on April 20, 2020
- Updated on April 20, 2020
- 6388 Views
This feature limits the maximum number of routes that BGP can advertise to a peer. When the maximum
- Written by Jason Shamberger
- Posted on April 20, 2020
- Updated on February 19, 2024
- 11011 Views
RPKI provides a mechanism to validate the originating AS of an advertised prefix.
- Written by Joel Katticaran
- Posted on April 15, 2020
- Updated on April 16, 2020
- 12722 Views
This change adds a global toggle to BGP communities that allow for community sharing to be enabled/disabled for all
- Written by Rahul Verma
- Posted on April 15, 2020
- Updated on April 15, 2020
- 6701 Views
Burst size feature works in conjunction with the shape rate feature and allows configuring the amount of data in
- Written by Trevor Mendez
- Posted on April 17, 2020
- Updated on February 5, 2022
- 7585 Views
Segment Routing Traffic Engineering Policy (SR TE) aka SR Policy makes use of Segment Routing (SR) to allow a headend
- Written by Chitra Ramachandran
- Posted on April 15, 2020
- Updated on April 15, 2020
- 7009 Views
Add support for configuring admin distance for OSPFv3 external routes, without this OSPFv3 would always install
- Written by Jonathan Doyle
- Posted on April 23, 2018
- Updated on December 23, 2021
- 6509 Views
By default, counters are polled from hardware every 2 seconds. This enhancement allows this period to be configured,
- Written by Xujia Cao
- Posted on August 16, 2018
- Updated on May 4, 2020
- 7317 Views
DHCP relay agent uses one of the addresses configured on the interface as the source IP when relaying messages to the
- Written by José Rios
- Posted on April 21, 2020
- Updated on April 21, 2020
- 8483 Views
DirectFlow is a feature that allows the user to steer traffic by matching on packet headers and/or metadata using the
- Written by Sridhar Nagarajan
- Posted on April 15, 2020
- Updated on November 4, 2024
- 6794 Views
EOS 4.24.0 adds support for egress IPv6 RACLs without using packet recirculation. So, by default, egress IPv6 ACL
- Written by Ali Jafri
- Posted on April 20, 2020
- Updated on May 15, 2020
- 7082 Views
Security MAC ACLs can be used to permit and/or deny ethernet packets on the egress port by matching on the following
- Written by Aaron Bamberger
- Posted on April 23, 2020
- Updated on November 7, 2024
- 10278 Views
E-Tree is an L2 EVPN service (defined in RFC8317) in which each attachment circuit (AC) is assigned the role of Root or Leaf. Once roles are assigned, the following forwarding rules are enforced:
- Written by Wade Carpenter
- Posted on April 24, 2020
- Updated on July 15, 2024
- 16444 Views
EVPN MPLS VPWS (RFC 8214) provides the ability to forward customer traffic to / from a given attachment circuit (AC) without any MAC lookup / learning. The basic advantage of VPWS over an L2 EVPN is the reduced control plane signalling due to not exchanging MAC address information. In contrast to LDP pseudowires, EVPN MPLS VPWS uses BGP for signalling. Port based and VLAN based services are supported.
- Written by Alton Lo
- Posted on April 27, 2020
- Updated on July 14, 2023
- 8547 Views
As described in the L3 EVPN VXLAN Configuration Guide, it is common practice to use Layer 3 EVPN to provide multi
- Written by VIKAS NARAYANAPPA
- Posted on April 15, 2020
- Updated on April 15, 2020
- 6699 Views
A pseudowire is usually transported over a single network path in order to preserve the packet ordering of each
- Written by Deepak Sebastian
- Posted on November 12, 2019
- Updated on May 7, 2024
- 10019 Views
This feature adds support for offloading BFD Transmit path to hardware (ASIC) for specific types of BFD sessions. This will improve accuracy of transmit timer implementations for BFD (especially with fast timers like 50 ms) and relieve pressure on the main CPU in scenarios of scale.
- Written by Rahul Vasist
- Posted on April 20, 2020
- Updated on January 29, 2024
- 9558 Views
EOS-4.24.0 adds support for hardware-accelerated sFlow on R3 systems. Without hardware acceleration, all sFlow processing is done in software, which means performance is heavily dependent on the capabilities of the host CPU. Aggressive sampling rates also decrease the amount of processing time available for other EOS applications.
- Written by Raghavendra Rao
- Posted on May 14, 2020
- Updated on May 14, 2020
- 7907 Views
The hardware based implementation of the firewall uses a segment security model. In the segment security model,
- Written by Binglai Niu
- Posted on April 24, 2020
- Updated on July 9, 2024
- 8213 Views
On network devices, when a route is programmed, a certain portion of hardware resources is allocated and associated
- Written by Pintu Kumar
- Posted on April 20, 2020
- Updated on April 21, 2020
- 7801 Views
When two sites of a VPN are connected to PE routers from different Autonomous Systems (AS), the PE routers cannot
- Written by Chris Roche
- Posted on April 20, 2020
- Updated on April 26, 2021
- 7208 Views
The IS IS maximum LSP size feature provides the ability to configure the maximum LSP size that the IS IS protocol will
- Written by Arpit Bansal
- Posted on September 30, 2015
- Updated on April 22, 2020
- 6793 Views
Level 1 2 routers set attached bit in their Level 1 LSPs to indicate their reachability to the rest of the network. A
- Written by Ajay Chhatwal
- Posted on May 15, 2020
- Updated on November 7, 2024
- 7889 Views
L2 protocol packets - LLDP, LACP and STP are trapped to the CPU by default. This feature allows for disabling the per protocol trap on a given set of interfaces.
- Written by Kaladhar Musunuru
- Posted on May 4, 2020
- Updated on August 16, 2024
- 4380 Views
Ethernet VPN (EVPN) is an extension of the BGP protocol introducing a new address family: L2VPN (address family number 25) / EVPN (subsequent address family number 70). It is used to exchange overlay MAC and IP address reachability information between BGP peers using type-2 routes, but additionally, EVPN supports the exchange of layer 3 IPv4 and IPv6 overlay routes through the extensions described in (type 5 EVPN routes).
- Written by Dawon Lee
- Posted on August 17, 2018
- Updated on July 5, 2024
- 8714 Views
Lanz Mirroring feature allows users to automatically mirror traffic queued as a result of congestion to either CPU or a different interface.
- Written by Xin Guang (Tony) Du
- Posted on August 25, 2016
- Updated on November 23, 2020
- 10615 Views
The LDP pseudowire feature provides support for emulating Ethernet connections over a Multiprotocol Label
- Written by Sean Hope
- Posted on May 8, 2020
- Updated on September 21, 2021
- 8638 Views
MAP T is a double stateless NAT64 translation technology. It allows an internet service provider to share IPv4
- Written by Wendi Liu
- Posted on April 27, 2020
- Updated on April 27, 2020
- 7610 Views
Network address translation (NAT) is a common method used to remap one IP address space into another by modifying the
- Written by Allyn Wade
- Posted on August 27, 2019
- Updated on May 8, 2020
- 9854 Views
Octa is a process which combines OpenConfig and certain TerminAttr functionality, primarily with the intent of
- Written by Kushagra Mohan
- Posted on March 18, 2020
- Updated on July 19, 2024
- 8505 Views
This feature enables per port TC-To-COS mapping, where TC represents Traffic-Class and COS represents Vlan tag PCP bits. While at present there is a global TC-To-COS mapping, we can use the TC-To-COS feature to create custom profiles which can be applied to the required interfaces.
- Written by Aditya Donthi Srinivasa
- Posted on April 17, 2020
- Updated on September 30, 2020
- 8299 Views
Port Security: Protect mode (PortSec Protect) is newly added to the Port Security feature and is designed to restrict
- Written by Shyam Kota
- Posted on April 15, 2020
- Updated on June 1, 2023
- 7169 Views
This priority drop feature provides a way to drop packets according to QOS priority when the device ingress maximum packet rate is oversubscribed.
- Written by Kaladhar Musunuru
- Posted on May 4, 2020
- Updated on July 14, 2023
- 7293 Views
This feature introduces support for ACL configuration on VXLAN decapsulated packets. The configured ACL rules will
- Written by Chitra Ramachandran
- Posted on April 15, 2020
- Updated on September 7, 2020
- 6793 Views
This document describes the feature that allows redistribution of routes from ISIS to OSPFv3 running on a device.
- Written by Deeksha Srivastava
- Posted on April 16, 2020
- Updated on April 22, 2020
- 8712 Views
When there are multiple VRFs on the device and there is a need to share routes between them, typically for shared
- Written by Todor Nikolov
- Posted on April 20, 2020
- Updated on April 20, 2020
- 8423 Views
In addition to aliasing only the first token in a CLI command, EOS now supports full command aliasing using regular
- Written by Phillip Jie
- Posted on April 16, 2020
- Updated on April 16, 2020
- 7033 Views
This article describes the support for specifying User Defined Fields (UDF) in Router ACLs including IPv4 and IPv6
- Written by Manoharan Sundaramoorthy
- Posted on September 4, 2018
- Updated on February 5, 2022
- 13497 Views
Segment Routing Traffic Engineering Policy (SR TE) aka SR Policy makes use of Segment Routing (SR) to allow a headend
- Written by Quentin L'Hours
- Posted on May 14, 2020
- Updated on May 14, 2020
- 7032 Views
Support for negotiating and receiving IPv6 unicast and IPv6 labeled unicast (6PE) updates from a BGP peer.
- Written by Phillip Jie
- Posted on April 16, 2020
- Updated on April 16, 2020
- 6355 Views
This article describes the support for specifying User Defined Fields (UDF) in Sub interface ACLs including IPv4 and