User Documentation
White Rabbit Good Practice Guide
A very complete WR good practice guide prepared by Erik Dierikx and Yan Xie in the frame of the TIMEFUNC project (pdf, Word).
White Rabbit Switch. Functional Specification.
This document (preliminary version) describes the functional requirements that the White Rabbit Switch must accomplish.
White Rabbit Specification: Draft for Comments
Description of White Rabbit protocol which extends IEEE1588-2008 standard.
The files with White Rabbit specification have been moved to the project White Rabbit Standardization
- WR Specification - latest version
- older versions of the WR Spec (to show how the WR Spec evolved)
25 March 2012
White Rabbit DEMO (1)
Attached is a movie from Tomek's demo of White Rabbit during presentation at CERN.
Demo highlights that synchronization in WR is completely plug&play.
The movie is available with a bit better quality here: http://www.youtube.com/watch?v=ZZsEr0TTTEk
White Rabbit DEMO (2)
Attached is a movie from Tomek's demo of White Rabbit during presentation at CERN.
Demo demonstrates delay tracking in variable conditions.
Of better quality and in one piece, the movie is available here: http://www.youtube.com/watch?v=ZSRQEExbdq8
Tom's Master thesis
T.Włostowski, Precise time and frequency transfer in a White Rabbit
network, 2011.
M.Sc thesis describing the exact synchronization algorithm used in WR
and the WR Switch.
White Rabbit CERN Control and Timing Network
This documents puts together some preliminary thoughts about White Rabbit's application to control and provide timing for accelerators at CERN (replacing General Machine Timing).
Posters
Posters in conferences, workshops and other meetings.
White Rabbit logo
White Rabbit logo in different formats (including vector graphic) can be found here.
These logos are intellectual property of CERN.
The logo is licensed under "Attribution-ShareAlike 4.0 International (CC
BY-SA 4.0)"
If in doubt, please contact CERN before attempting to use them.
The "*-original" files contain the logo which was drawn by hand and
scanned (authored by Alexandra Lewis).
The "*-vectorized" files contain the logo which was re-drawn from the
original in Corel Draw to provide useful vector graphic (accepted by the
original author).
Corel Draw version of the logo available on request (contact Maciej
Lipinski)
White Rabbit as a fieldbus (presentation)
Presentation and demo done in the context of the CERN Fieldbus Working Group on Thursday 26 January 2012.
WR contribution for ITU-T Q13/15 meeting
Informative contribution prepared for ITU-T Q13/Q15 meeting in Boulder
Figures
Here you can find all the figures used on White Rabbit Project wiki
pages.
The sources of the figures and more figures can be found in the
repository
(here)
Temperature Tests (aka Torture Report)
A small White Rabbit system with two WR SPEC nodes connected to two WR
switches was
built. All WR components were independently exposed to temperatures
ranging between 0 and
50 degrees Celsius to measure the actual synchronization performance.
White Rabbit calibration procedure
This document describes the calibration procedure for White Rabbit devices. The procedure must be performed to ensure the sub-nanosecond accuracy synchronization of the WR network.
White Rabbit Users
This document contains information from Users and applications of White
Rabbit.
The White Rabbit Users
page shows a
large sample of users.
WR Jobs
Job descriptions where White Rabbit is mentioned.
Technical Documentation
FPGA transceivers propagation delay study
A great report by Nikhef's Peter Jansweijer and Henk Peek, with lots of interesting material on Xilinx Gb/s transceivers. See the report stored at its original location: http://www.nikhef.nl/pub/services/biblio/technicalreports/ETR2010-01.pdf
Articles
Papers in conferences, workshops and other meetings.
WR switch technical specification
White Rabbit Node Specifications
Current version of the WR node functional specification
Presentations
Presentations in conferences, workshops and other meetings.
A list of WR-related presentation can be found here.
NOTE: The idea of packet pre-emption mentioned in the presentations WR_Tomek_ICALEPCS2009.pdf and WR_Loschmidt_ISPCS2009.pdf is not retained.
ptp proposal
A proposal for a portable ptp daemon to be used in both WR-PTP and standard PTP
White Rabbit and Robustness: Draft for Comments
This document is a study of reliability and robustness of a White Rabbit network.
Greg's Master thesis
G. Daniluk, White Rabbit PTP Core the sub-nanosecond time
synchronization over Ethernet, 2012.
M.Sc thesis describing the development and implementation of the first
standalone HDL module handling the sub-nanosecond synchronization over a
regular Ethernet - the White Rabbit PTP Core.
.
WR Switch Debugging
SFP data
Technical data about SFPs.
Information linked from the wiki page Which SFP transceiver and fibre
type to use for White
Rabbit
White Rabbit: ultimate limits on phase noise and stability
This article investigates the ultimate limits of
White Rabbit (WR), an high-accuracy time distribution system
based on FPGA.
This is the submitted version of a published paper.
https://ieeexplore.ieee.org/document/8400550
Documentation
FAQ documents
Documents that may be referred to from the FAQ https://www.ohwr.org/project/white-rabbit/wikis/faqwr