1. 8th White Rabbit Workshop
International IEEE Symposium on Precision Clock Synchronization for Measurement, Control and Communication
Organizer:
Cesar Prados, GSI
8th White Rabbit Workshop

2. 8th White Rabbit Workshop
Plug Fest
Plug Fest
Cesar Prados, GSI
8th White Rabbit Workshop

3. 8th White Rabbit Workshop
We have learned a lot about.....
Customs
Plug Fest
Our WR gear was stuck in customs
- If you bring it yourself → 24h later you get it.
- If you send it → You don't get it
Cesar Prados, GSI
8th White Rabbit Workshop

4. 8th White Rabbit Workshop
White Rabbit in the Plug Fest and Goals
Plug Fest OK
Correctness of Pdelay sync mechanism in PPSI OK
WR P2P Transparent Clock
with minor issues OK
Performance of new non-WR PPSI servo OK
IPv4
with minor issues OK
PTP Domains ?
WRPTP over SyncE switch
Cesar Prados, GSI
8th White Rabbit Workshop

5. 8th White Rabbit Workshop
Plug Fest Overview
29 Participants, the majority are companies
Plug Fest
Clocks
Grandmasters
GPS
Software Protocol Stacks
IP Cores
Test & Measure equipment
Protocols
Profiles
PTP
Layer 2
IPv4
Layer2
HSR/PRP
Default
Telecom
One Step
Two Step
E2E
P2P
Power
Uni-Multicast
Cesar Prados, GSI
8th White Rabbit Workshop

6. SyncE switch between WR Devices
Plug Fest
Cesar Prados, GSI
8th White Rabbit Workshop

7. PTP Master SFP connected to a WR Slave Port
Plug Fest
Cesar Prados, GSI
8th White Rabbit Workshop

8. 8th White Rabbit Workshop
Best Paper Award:
Conference
“Using a multi-source NTP watchdog to increase the robustness of PTPv2 in Financial Industry networks”
Interesting Papers:
“Precise Clock Parameter Estimation and Ground Truth Capture for Clock Error Measurements using FPGAs”
“Experimental verification of the egress and ingress latency correction in PTP clocks”
“PPSi – A Free Software PTP Implementation”
Cesar Prados, GSI
8th White Rabbit Workshop

9. 8th White Rabbit Workshop
Notes
Best Paper Award:
Al single point of failure in the PTP protocol that affects its robustness, and ongoing regulatory requirements
In finance markets using a multi-source NTP watchdog
Conference
Interesting Papers:
1)propose a mechanism to estimate clock parameters between two clocks using TDC. Simultaneously, we have proposed a ground truth capture methodology for clock error measurements.
2) present a measurement setup that enables the direct measurement of both the ingress and egress latencies of a PTP clock.
Cesar Prados, GSI
8th White Rabbit Workshop