• Corpus ID: 54113364

THE WHITE RABBIT PROJECT

@inproceedings{Serrano2009THEWR,
  title={THE WHITE RABBIT PROJECT},
  author={J. Serrano and Tibor Fleck and Pablo Alvarez and Ralph C. B{\"a}r and Mathias Kreider and J. Lewis and Patrick Loschmidt and Stefan Rauch and Emilio G. Cota and T. Wlostowski and Pedro Moreira and Georg Gaderer and Cesar Prados and Joze Dedic and Matthieu Cattin},
  year={2009}
}
Reliable, fast and deterministic transmission of control information in a network is a need for many distributed systems. One example is timing systems, where a reference frequency is used to accurately schedule time-critical messages. The White Rabbit (WR) project is a multi-laboratory and multi-company effort to bring together the best of the data transfer and timing worlds in a completely open design. It takes advantage of the latest developments for improving timing over Ethernet, such as… 

Figures from this paper

Managing your Timing System as a Standard Ethernet Network

The configuration, monitoring and diagnostics of a WR network using standard tools is described and many examples of the benefits brought about by this strategy are shown.

Ultra-accurate Ethernet time-transfer with programmable carrier-frequency based on White Rabbit solution

The Ethernet physical layer is modified to develop a fully programmable Ethernet reference carrier frequency and the influence of the frequency range and how it affects the clock synchronization accuracy results are evaluated, obtaining the jitter results for the WR-core under different system frequencies.

Trigger and RF Distribution Using White Rabbit

A fixed-latency trigger distribution system for the study of instabilities in the LHC, and current efforts for distributing multiple RF signals over a WR network, using a Distributed DDS (Direct Digital Synthesis) paradigm.

THE NEW WHITE RABBIT BASED TIMING SYSTEM FOR THE FAIR FACILITY

A new timestamp and event distribution system for the upcoming FAIR facility is being developed at GSI based on White Rabbit, which is a fully deterministic Ethernet-based network for clock and time distribution.

White rabbit: a PTP application for robust sub-nanosecond synchronization

The White Rabbit extension to PTP (WRPTP) is introduced and measured results of WRPTP performance demonstrate sub-nanosecond accuracy over a 5km fiber optic link with a precision below 10ps and a reduced PTP-message exchange rate.

RELIABILITY IN A WHITE RABBIT NETWORK

White Rabbit (WR) is a time-deterministic, low-latency Ethernet-based network which enables transparent, subns accuracy timing distribution. It is being developed to replace the General Machine

FAIR TIMING MASTER

Technical details on the expected timing scenario, macro internals and discussion on possible future development are covered, covering the future of GSI/FAIR.

RELIABILITY IN AWHITE RABBIT NETWORK

White Rabbit (WR) is a time-deterministic, low-latency Ethernet-based network which enables transparent, subns accuracy timing distribution. It is being developed to replace the General Machine

White-rabbit-enabled data acquisition system

It is shown that it is possible to tag the acquired data in a deterministic manner similarly to what is done in a local DAQ, which can be the first step towards a multi-device, remotely operated synchronized data acquisition system for the aforementioned fields of application.

WHITERABBIT - A NOVEL, HIGH PRECISION TIMING SYSTEM

The WhiteRabbit timing network is a deterministic field bus, based on synchronous GBit Ethernet and the Precision Time Protocol (PTP). The WR protocol was designed to provide precise timing and event
...

References

SHOWING 1-4 OF 4 REFERENCES

White rabbit: Sub-nanosecond timing distribution over ethernet

The presented design aims for a general purpose, fieldbus like transmission system, which provides deterministic data and timing to approximately 1000 timing stations, which takes advantage of the latest developments on synchronous Ethernet and IEEE 1588 to enable the distribution of accurate timing information to the nodes saving noticeable amounts of bandwidth.

White rabbit: a PTP application for robust sub-nanosecond synchronization

The White Rabbit extension to PTP (WRPTP) is introduced and measured results of WRPTP performance demonstrate sub-nanosecond accuracy over a 5km fiber optic link with a precision below 10ps and a reduced PTP-message exchange rate.

Picosecond Time Difference Measurement System

Recently a t ime d i f fe rence measurement system was developed i n the Frequency & Time Standards Section o f the Nat ional Bureau o f Standards and independently a t the Nat ional Research Council

Properties of Signal Sources and Measurement Methods