Introducing ultra-precise time for server-hosted applications
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The document introduces OSA SoftSync, a software client designed to provide ultra-precise timing for server-hosted applications, addressing critical infrastructure needs in finance, telecommunications, and other sectors. It highlights the limitations of legacy NTP protocols and proposes the use of PTP for sub-microsecond accuracy in timing synchronization. Additionally, it outlines the technical specifications, deployment models, and management options of the SoftSync solution.
Introducing ultra-precise time for server-hosted applications
- 1. Introducing ultra-precise time for server-hosted applications May 2022 OSA SoftSyncTM – a robust, precise and easily deployable software client
- 2. © 2022 ADVA. All rights reserved. 2 Critical infrastructure needs precise timing for rapid failure localization and efficient operation of distributed control processes Our industry requires better timing Replication of data in globally dispersed data centers and synchronization of distributed processes requires tight timing Precise timing is essential for highly efficient radio access network and accurate localization in mobile networks Both transactional service in finance and security applications depend on trustworthy and precise time Technical innovation and new regulations call for precise synchronization
- 3. © 2022 ADVA. All rights reserved. 3 Use case – finance: the problem Legacy NTP is not accurate enough Algorithmic trading LAN Trader Trade execution Market data Finance venue NTP server Public network Financial markets need to accurately timestamp transaction records • Legacy Network Time Protocol (NTP) typically achieves 1-10ms accuracy • Now µs accuracy is required by governmental bodies such as RTS25/MiFID II (EU) or FINRA rules (US) • Reporting granularity is moving to ns resolution, more stringent accuracy requirements will follow Typical timing architecture
- 4. © 2022 ADVA. All rights reserved. 4 Time protocols NTP client: What’s the time? Client/server protocols NTP versus PTP: NTP – Network Time Protocol PTP – Precision Time Protocol NTP server: It’s 10:34 PTP clock Reference clock For high-precision timing, NTP needs to be replaced by PTP • PTP features physical timestamping on interface, advanced algorithms, on-path support • Application-specific PTP profiles define implementation and performance • PTP achieves 100ns accuracy with HW implementation and a few µs with SW
- 5. © 2022 ADVA. All rights reserved. 5 Use case – finance: the solution PTP achieves sub-µs timing accuracy NTP server NTP client NTP over packet network PTP software clock NTP client NTP PTP PTP grandmaster synchronized from GNSS PTP over packet network NTP to PTP migration NTP/PTP gateway Improving timing with PTP delivery and NTP/PTP client or PTP software clock • Legacy packet networks can be used for PTP delivery • Enterprise appliances frequently support NTP • Solution: • Colocated NTP/PTP gateway • PTP software clock • Alternatively: colocated HW clock Migrating from NTP to PTP
- 6. © 2022 ADVA. All rights reserved. 6 OSA SoftSyncTM makes the difference Universal solution for seamless transition towards PTP architecture PTP packets • Software PTP client running on host machine, connecting to one/several PTP time servers • Extracting precise time from the best PTP source with the best master clock algorithm (BMCA) • Synchronizing system clock through operating system APIs • Builds on Oscilloquartz clock recovery algorithms and robust SyncjackTM assurance features • IEEE 1588-compliant for seamless integration with any PTP solution PTP client improves synchronization quality of non-PTP-aware appliances Interface Processor (CPU) Software app 1 SoftSync Operating system Software app 2 Internal clock
- 7. © 2022 ADVA. All rights reserved. 7 Solution overview Precise timing for efficient operations ePRTC with central PTP grandmaster and cesium atomic clock Packet network Wireless Finance IoT Utilities PTP packets Ensemble Sync Director OSA SoftSyncTM Improving timing accuracy by upgrading existing IT and packet networks • SoftSyncTM slave clock on customer premises • Central GM with GNSS and atomic clock • Featuring SyncjackTM for sync assurance • Open to 3PP or homogeneous OSA • Optional: edge GM for improved accuracy and reliability End-to-end managed synchronization solutions
- 8. © 2022 ADVA. All rights reserved. 8 Deployment models Universal applicability NIC-based hardware timestamping is recommended for higher accuracy Software appliance Interface Processor (CPU) Software app 1 SoftSync Operating system NIC-assisted appliance Interface (NIC HW TS) Processor (CPU) SoftSync Operating system Higher accuracy by HW- timestamping on network interface device (NID) Universal applicability with any interface Software app 2 Software app 1 Software app 2
- 9. © 2022 ADVA. All rights reserved. 9 OSA SoftSyncTM specifications • Software PTP client/slave for highly precise timing • PTP slave clock with enterprise and PTP default profiles (IPv4 & IPv6) • PTP master (G.8265.1) clock for accuracy testing • BMCA between up to four remote masters • Proven synchronization assurance solution • Most cost-efficient route to precise timing • Supported by 86 hosts running Linux (tested with Linux Centos and RedHat Enterprise OS) • Support for HW and SW timestamping: • Automatic detection of available timestamping technique • HW timestamping for variety of NICs (tested with the NICs based on Intel x722, Intel i350 and Intel 82599ES Ethernet controllers) • Expected time recovery accuracy in the tens of ns with HW timestamping (depending on NIC’s oscillator, timestamping accuracy and network PTP awareness), typically better than 10us with SW timestamping • Web GUI (HTTP/HTTPS) , CLI and SNMPv2/v3 management interfaces • System infrastructure including users' management, alarms, logging • Support for gNMI-based telemetry
- 10. © 2022 ADVA. All rights reserved. 10 User interfaces and management options Telemetry streaming, e.g., Grafana dashboard Modern and user-friendly web GUI Unique synchronization network management with Ensemble Sync Director Multiple management and control options for ease of use and simple operations Planned for Q4.2022
- 11. © 2022 ADVA. All rights reserved. 11 SoftSyncTM interoperable with Oscilloquartz GM portfolio Ensemble Sync Director OSA 5422 OSA 541x OSA 3350 optical Cs ePRC+ OSA 5430 NG GM/SSU OSA 5420/21 OSA 5412 3230B Cs magnetic PRC/ePRC accessSyncTM edgeSyncTM edgeSync+TM coreSyncTM OSA 5401 OSA 5405-I/O/MB/P SFP SyncPlugTM OSA 5440 NG GM/SSU coreSyncTM Device/network monitor Front/backhaul Core network O-RAN/edge DC TV studio Defense comms Aviation radars Data center Financial trading 911 center Smart power grids OSA SoftSyncTM Linux OSAinsideTM * SyncModuleTM M2 OSA 5400
- 12. © 2022 ADVA. All rights reserved. 12 Summary OSA SoftSyncTM – timing precision at the click of a button • Software PTP client for highly precise timing • Widely applicable as a slave clock • Fully interoperable with OSA PTP grandmaster portfolio • Proven synchronization technology • Multiple management options Values and benefit
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