- Written by Yin Chen
- Posted on May 9, 2022
- Updated on June 2, 2022
- 1426 Views
Precision Time Protocol (PTP) management messages are general messages sent to PTP-enabled switches on the data plane. On Arista switches, its behavior depends on the configured PTP mode.
- Written by Jeff Chan
- Posted on January 18, 2019
- Updated on January 23, 2019
- 2272 Views
Until now, all PTP packets received on Arista switches with PTP boundary mode enabled will automatically be sent to
- Written by Sourabh Bollapragada
- Posted on January 3, 2023
- Updated on January 20, 2023
- 72 Views
PTP 1-step Boundary Clock (or 1-step BC) is similar to 2-step BC in function, but doesn’t send the PTP followup message. The timestamp present in the PTP followup message’s preciseOriginTimestamp field is sent in the PTP sync message’s originTimestamp field along with a non-zero correctionField.
- Written by Ryan Lui
- Posted on October 20, 2021
- Updated on October 20, 2021
- 1843 Views
This brief TOI describes a small update made to Arista’s implementation of the Best Master Clock Algorithm (BMCA),
- Written by Shyam Kota
- Posted on August 16, 2018
- Updated on October 1, 2018
- 2016 Views
This feature allows users to view most recent history of offset from master, mean path delay and skew values via CLI
- Written by Shifeng Jin
- Posted on December 7, 2020
- Updated on December 9, 2020
- 1927 Views
Since the introduction of PTP Monitoring feature[1], PTP is capable of recording recent metrics for offset from
- Written by Simon Eteen
- Posted on May 9, 2022
- Updated on May 11, 2022
- 1432 Views
The `ptp forward-v1` command configures the switch to forward Precision Time Protocol version 1 packets as regular multicast traffic. By default, when PTP is enabled and PTPv1 packets are received on the PTP enabled interfaces, these packets are trapped by the CPU, logged and discarded.
- Written by Yin Chen
- Posted on December 17, 2021
- Updated on May 5, 2022
- 1710 Views
This article describes the usage of the ptp free-running source clock command, which selects a time source used by a switch running the Precision Time Protocol (PTP) while it is in a free-running state.
- Written by Zhen Xue
- Posted on September 2, 2021
- Updated on January 17, 2022
- 2527 Views
From the Precision Time Protocol (PTP) perspective, Multi Chassis Link Aggregation (MLAG) peers are two physical
- Written by Charlotte Fedderly
- Posted on June 20, 2022
- Updated on June 29, 2022
- 929 Views
Synchronous Ethernet (SyncE) provides support for frequency synchronization over Ethernet between devices traceable to an external frequency reference, like a primary reference clock, as specified in ITU G.8261.
- Written by Harold Fong
- Posted on August 30, 2019
- Updated on September 5, 2019
- 3762 Views
This feature makes the PTP agent aware of VLANs, running with a single Best Master Clock Algorithm (BMCA). It allows