- Written by Jacob Sword
- Posted on February 16, 2022
- Updated on March 7, 2024
- 9317 Views
Multiple dynamic counter features may be enabled simultaneously, primarily configured using the [no] hardware counter feature [feature] CLI commands. Compatibility of these features has been enhanced to allow for greater flexibility in simultaneously enabled counter features. Changes in counter feature compatibility across EOS releases is detailed below.
- Written by Vamsi Anne
- Posted on December 29, 2021
- Updated on May 7, 2024
- 10159 Views
As Ethernet technologies made their way into the Metropolitan Area Networks (MAN) and the Wide Area Networks (WAN), from the conventional enterprise level usage, they are now widely being used by service providers to provide end-to-end connectivity to customers. Such service provider networks are typically spread across large geographical areas. Additionally, the service providers themselves may be relying on certain internet backbone providers, referred to as “operators”, to provide connectivity in case the geographical area to be covered is too huge. This mode of operation makes the task of Operations, Administration and Maintenance (OAM) of such networks to be far more challenging, and the ability of service providers to respond to such network faults swiftly directly impacts their competitiveness.
- Written by Arpit Bansal
- Posted on January 6, 2023
- Updated on January 6, 2023
- 5220 Views
For MPLS forwarded traffic the tunnel destination needs to know the address-family of the payload IP/IPv6 packet to correctly parse the header. On some platforms this address-family is deduced from the address family of the Bottom of stack( BOS ) MPLS label seen by the router or by relying on the Ether Type in the Ethernet header.
- Written by Prajul Sreedharan
- Posted on January 22, 2019
- Updated on November 7, 2024
- 8439 Views
This feature introduces the support for IPv4 ACL configuration under GRE and IPsec tunnel interfaces and IPv6 ACL configuration under GRE tunnel interfaces. The configured ACL rules are applied to a tunnel terminated GRE packet i.e. any IPv4/v6-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 i.e, IPv4-over-ESP-over-encrypted-IPv4 packet that is decapsulated and decrypted by the IPsec tunnel interface on which the ACL is applied.
- Written by Jyothish Kunkumath
- Posted on January 6, 2022
- Updated on April 29, 2024
- 11036 Views
IPSec tunnel mode support allows the customer to encrypt traffic transiting between two tunnel endpoints.
- Written by John Clarke
- Posted on December 20, 2021
- Updated on October 9, 2024
- 11053 Views
Arista's 7130 Connect Series of Layer 1+ switches are powerful network devices designed for ultra low latency and offer a wealth of integrated management features and functionalities.
- Written by David Mirabito
- Posted on December 30, 2021
- Updated on October 17, 2024
- 14959 Views
MetaWatch is an FPGA-based feature available for Arista 7130 Series platforms. It provides precise timestamping of packets, aggregation and deep buffering for Ethernet links. Timestamp information and other metadata such as device and port identifiers are appended to the end of the packet as a trailer.
- Written by Josh Pfosi
- Posted on June 11, 2019
- Updated on November 11, 2024
- 11881 Views
This feature adds support for CPU traffic policy capable of matching and acting on IP traffic which would otherwise
- Written by Prasanna Parthasarathy
- Posted on December 23, 2021
- Updated on October 28, 2024
- 12595 Views
SwitchApp is an FPGA-based feature available on Arista’s 7130LB-Series and 7132LB-Series platforms. It performs ultra low latency Ethernet packet switching. Its packet switching feature set, port count, and port to port latency are a function of the selected SwitchApp profile. Detailed latency measurements are available in the userguide on the Arista Support site.
- Written by Shyam Kota
- Posted on June 13, 2019
- Updated on April 6, 2022
- 5905 Views
This feature introduces the possibility of creating Tap Aggregation PMF profiles consisting of 80 bit keys, to make a more efficient use of TCAM resources. Previously, we could only have key sizes of 160 or 320 bits.
- Written by Charlotte Fedderly
- Posted on January 21, 2019
- Updated on April 6, 2022
- 6420 Views
This article describes the TAP Aggregation 802.1Q (VLAN) tag stripping feature. This feature allows up to two of the outermost incoming 802.1Q tags to be stripped, and can be configured on a traffic steering policy or a tool port.
- Written by James Shephard
- Posted on April 23, 2018
- Updated on April 6, 2022
- 6022 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 Kevin Amiraux
- Posted on March 31, 2017
- Updated on February 20, 2023
- 8638 Views
This document describes the truncation capability for Tap Aggregation, which allows tapped traffic to be truncated to a smaller size before being transmitted.