The document discusses the importance of precise and assured timing in enterprise networks, emphasizing its role in transportation, finance, and synchronization of various systems. It highlights recent challenges to GPS and the necessity for resilient timing solutions, including the integration of optical network-delivered timing and local systems to support GNSS. Additionally, it outlines regulatory considerations and technological advancements influencing the future of timing services in financial and enterprise ecosystems.

1. Precise and assured timing for enterprise networks
Jeremy Thomas, senior business development manager, Oscilloquartz, ADVA
November 8 - ITSF

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ADVA Oscilloquartz
ADVA Optical Networking and transport / Oscilloquartz E2E time and sync

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. . Impact on timing / PNT in the last 6 weeks
What happened to GPS in Denver? - GPS
World : GPS World 09/21/2022
Ukraine updates: US warns Russia over satellites threats – DW – 10/27/2022
US warns Russia over satellites
threats
Counter-threat came after
Konstantin Vorontsov said
Western commercial
satellites could become
legitimate targets
Danish waters – four
vessels jammed, PNT
systems “went black”
20km radius from
warships
Air Traffic Control issued a
notice advising pilots of
problems with GPS reception
spanning about 8,000 square
miles in the Denver area
“Incident lasted for
33.5 hours”
Mike Roskind (DHS)
Russian warships played kispus with Danish pilots - TV 2 – 10/07/2022

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Globally available, free to access, accurate and traceable
Obstructed sky view, lightning strike,
multipath
Interference from high-power RF
transmitters, e.g., TV, cellular, radar
Ionospheric disturbances and solar activity
Jamming attack: overpowering weak GNSS
signal
Spoofing attack: fake GNSS signal
Challenges with satellite-delivered timing

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Precise and assured timing is fundamental
Detecting and accurately
localizing failures;
synchronizing control
Position
Navigation
Timing
Tracking goods and
navigation of vehicles on
ground, water or in the air
Transportation
Precise timing of radio
access networks
Fixed/mobile networks
Utilities
Financial & enterprise
Synchronizing data backup
and distributed
compute processes
Regulation and HFT

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Regulation and innovation driving more precise and resilient timing
Financial enterprise ecosystem
Regulators
Regulation
Jan 2018
Resiliency
Next: MIFID 2.5 > 3? – Trading
fairness, data transparency,
increased local/centralised DB
Next: Europe/UK moves on aPNT
EC & UK Gov & IEEE P1952
e.g., European Radio Navigation Plan revision
Next: DC growth > cloud
adoption, movement and
innovation
e.g., 10G > 25G PTP next years
Next: MICA > ESMA
(Markets in crypto assets)
Traditional finance > DeFi
MIFID 1
5-year enforcement
USA
PNT Exec Order 13905 Feb 2020
Next: additional
regional requirements

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Synchronization in finance – past
Historically moderate timing requirements
Internet-hosted
NTP server
NTP
Local clock is sourcing local
appliances with NTP,
Exchanges / COLO 1PPS,
Communication network
Financial venues Communication network
GPS

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Synchronization in finance – past > present
Higher timing accuracy, traceability, cloud migration
PTP
Complementing NTP/PPS
with PTP and GNSS-
delivered timing
Communication network
Financial venues Communication network Data centers
Hosted finance applications
need precise timing; PTP and
GNSS-delivered timing
GNSS
Time-related regulation
Metro and regional DC DR
colo interconnects

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Synchronization in finance – present > future
Optical network delivered timing providing resilience
Progression to both internal and external time as a service (TaaS)
PTP
Backing-up GNSS, local GMs
with network delivered
timing. Increasing PTP and
WR
DWDM, optical network
and/or national timing
infrastructure
Financial venues Communication network Data centers
Resilient TaaS
Backing-up GNSS with
POP GMs, key ePRTC / Cs
clocks
Time-delivery optical timing
channel, core and boundary
clocks
Multiband GNSS
Resilient TaaS

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Evolution of assured timing / aPNT
• Augmentation of apace,
local and TaaS timing
• Generational evolving
regulation and standards
• HFT and colos retain core
house operations
Financial venues Communication network Data centers
• Backing-up GNSS with
both POP and network
delivered timing
• Time ownership and
utilization
• Build out of established
”as a Service” models to
incorporate timing
• Expansion of telco and ISP
end users and services
• Scalable resilient core,
access and edge / DWDM
networks
• Enhanced GNSS and clock
central monitoring inc. ML
and AI use
• Cybersecurity - public and
private TaaS

11. Thank you
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