Development of Photonic Layer and its Services in CESNET2 network

Transcription

1 Development of Photonic Layer and its Services in CESNET2 network Josef Vojtěch Optical Networks Department, CESNET a.l.e.

2 Dedication Dr. Stanislav Šíma (* ) Author and promoter of many concepts important for networking: Customer Empowered Networks CEF networks workshop, since 2004 Open DWDM and intensive usage of Alien Waves Single fibre bidirectional transmission, Nothing in Line Photonic services General environment for testing of new technologies and services (testbed, experimental facility) 2

3 Outline Development of CESNET2 photonic infrastructure Increase of fibre utilization Accurate time and frequency infrastructure Self-protection of infrastructure Open Line System - Czech Light SDN concept High speed testing Conclusion 3

4 Photonic Infrastructure 4

5 Photonic Infrastructure Single fibre lines: 22 to 25 % Open Line System Czech Light: 59 to 65 % 5890 km 26% 1510 km 9% 540 km 65% 3840 km Czech Light no DWDM Cisco 5

6 Photonic Infrastructure New PoP CESNET2 in Prague Redundancy Security Increase Placed in DC Tower, České Radiokomunikace 2 pairs of fibre, 11 and 13 km (independent) 6

7 Photonic Infrastructure In critical points CL-VMUX for remote control and monitoring Brno Ostrava, Brno Česke Bude jovice, Praha U stí n.l., Plzen U stí n.l. West circuit WSS based CL-ROADM (1U chassis) 7

8 CBF Triangle AT-CZ-SK ACOnet (AT), CESNET (CZ), SANET (SK), Open Line System Czech Light Prepared for advanced photonic services, backuped capacity at least 8 x 200 Gbit/s Crossborder fibres 519 km a 134 db 8

9 Photonic Infrastructure Special Requirements on Fibre Routes Search for locations with permanent disturbing source of vibration: bridges, metro, rail, aircraft on runway, etc. Location of a one time vibration source - detecting fiber disruption Searching for locations with seismic activity - early detection Utilization: Measuring systems Monitoring of pipelines Telecommunication Navigation systems, etc. 25 Apr deg, epicentre loc. 20 km SW from Vienna 9

10 Utilization Increase 10

11 Time and Frequency Infrastructure Development started in 2011 Interconnection UFE (Institute of Photonics and Electronics) in Prague and BEV (Federal Office of Metrology and Surveying) in Vienna, 550 km, support of Open DWDM CL family CESNET becomes the central point km line Prague-Brno, single medium bidirectional propagation Parallel transmission of time and frequency 2016 ELI (Extreme Light Infrastructure) Upgraded to CLA BiDi (Czech Light Amplifier Bidirectional) - security risks significantly limited (hacker attacks) 11

12 Time and Frequency Infrastructure 12

13 Time and Frequency Infrastructure All fibres shared with data, reserved bandwidth 400/800 GHz Total length 2476 km, deployed 1664 km [1] [1] J. VOJTĚCH et al; Joint accurate time and stable frequency distribution infrastructure sharing fiber footprint with research network, Optical Engineering,56,2,

14 2017 CLONETS started 14

15 Time and Frequency Infrastructure 2017 Agreement with PSNC: CBF to be used for Prague Poznan transmission New bidirectional channel between Brno and Ostrava 240 km Subsequent contractual research in the field of transmission of extremely stable quantities Connection ISI in Brno with INR in Řež and Temelín Power NPP 15

16 Self Protecting Infrastructure J. E. Simsarian and P. J. Winzer, "Shake before break: Per-span fiber sensing with in-line polarization monitoring," 2017 Optical Fiber Communications Conference and Exhibition (OFC), Los Angeles, CA, 2017, pp Metro networks experience 13 cuts annually for every 1000 miles of fiber [1] The most common causes of fiber cuts digging aktivity (58%) [2] CESNET internal statistics last year CESNET experienced 50 outages between and 71 outages from 1 to Number of outages caused by fiber cuts (>10%). [1] W. D. Grover, Mesh-Based Survivable Networks: Options and Strategies for Optical, MPLS, SONET and ATM Networking, PrenticeHall PTR, Upper Saddle River, [2] Orange (France Telecom) in France (January 2010-March 2011). 16

17 Self Protecting Infrastructure What is it A new service that is rapidly evolving and very desirable. Active monitoring of all vibrations near a fibre cable. How it can be done Heavy equipment digging near a fibre will shake a fibre cable before break it. Mostly based on evaluation of phase/polarization/ backscatter of the light. Why is it important Enabling proactive protection In combination with SDN and NetOS allows to reduce network outage times. Using existing routes, including those with active data traffic. 17

18 Self Protecting Infrastructure DOBI - Grant provided by ministry of interior Comparison of detection methods 18

19 Self Protecting Infrastructure Localisation with uncertainty tens of meters over distance of 70 km Hammer strokes, distance 12 km 19

20 Self Protecting Infrastructure Evaluation of interaction of 100 Gbps DP-QPSK (Coriant Groove) with high-power sensing system (up to +27 dbm), 100 GHz channel spacing [1] P. Munster, J. Radil, J. Vojtech, O. Havlis, T. Horvath, V. Smotlacha, E. Skaljo, "Simultaneous transmission of the highpower phase sensitive OTDR, 100Gbps dual polarisation QPSK, accurate time/frequency, and their mutual interferences", Fiber Optic Sensors and Applications XIV, 27 April 2017 [2] P. Munster, T. Horvath, O. Havlis, J. Vojtech, J. Radil, R. Velc, E. Skaljo, "Simultaneous transmission of standard data, precise time, stable frequency and sensing signals and their possible interaction", Optical Sensors 2017, 16 May

21 Czech Light 21

22 What Czech Light is Switching / Routing Cisco Juniper Alcatel (Nokia) Infinera Czech Light (Open DWDM line system) Fibers 22

23 Czech Light in CESNET2 Complete open line transmission system It uses commercially available transceivers Over 12 years of development Deployed more than 130 devices CL family on the backbone network Better use of fibre capacity (overlap of C + L + BiDi systems) More than 13 patents including CZ, EU, US 23

24 VMUX The terminal device for effective touchless equalization and monitoring of DWDM channels 100/50 GHz grid (40/80 optical channel) CLI, Web GUI for equalization and monitoring DWDM channels NETCONF API under development Deployment Newly on Slovakia and Austria CBF (Cross Board fiber) Brno-Bratislava, Brno-Viden Brno Ostrava, Brno Ceske Budejovice, Praha Usti, Plzen Usti (via Cheb) 24

25 ROADM/WSS Half-degree or multi-degree Flex-grid, Colorless, Directionless Integrated OCM and OSC CLI, Web GUI Multi-degree stackable pizza box under development Effective arrangement of optical components, solution to 1U chassis NETCONF and YANG control 25

26 ROADM/WSS Broadcast&Select 0.5RU per degree Route&Select 1RU per degree (line direction) Broadcat&Select to other degrees from other degrees Route&Select to other degrees from other degrees Broadcast Select WSS Route WSS Select WSS Drop Add Drop Add 26

27 CLA BiDi Developed EDFA Bi-directional amplifier for special applications Transmission of ultra stable quantities (accurate and stable frequency) Currently in service over more than 1100 km of lines Stability 2 ps (TDEV) Allows transmission in one of fiber as well as a pair of fibers 27

28 CLA PM CLA PM (Polarization Maintaining) Transmission of ultra stable quantities (accurate and stable frequency) Cooperation with ISI Measurement shows better system stability Developed in new optical developmental laboratory in Brno 28

29 Support NETCONF/YANG It required remodelling of the internal structure SW NETCONF serves as the primary control API We are going to SDN, we want standard YANG schemes Modernization of infrastructure and SW Netopeer2, libyang, libnetconf2, sysrepo 29

30 Telecom Infra Project: Open Optical Packet Transport CESNET has been advocating this for years Users should understand the DWDM layer Open, software-driven access to L0 Sharing the infrastructure among services data, time and frequency, sensing,.. Leveraging internal expertise to reduce vendor lock-in 30

31 Telecom Infra Project: Highlighting Working Groups Open Optical Packet Packet Transport Optical Line System such as CzechLight any vendor can produce conforming hardware software control over standard APIs Physical Layer Simulation Environment understand how separate DWDM signals are going to interact with each other safety of Alien Waves 31

32 High speed systems testing 100G started in 2011/2012, results presented at TERENA Rather complex ALU 1830PSS, Cisco MSTP, Czech Light Open DWDM system. Filtration tests very important today in 2017 because of high speed channels over legacy 50/100 GHz muxes! All optical reach verifications. Other tests to verify sensitivity, nonlinear thresholds... Why all these experiments? Datasheets should be enough. Not really, some results not clear or available like interaction of 10G and coherent signals. And this is very important for new photonic applications. 32

33 High speed systems testing Results of testing crucial for new photonic applications like accurate time transfer (ATT) and ultra stable frequency transfer (USFT), also sensing - Fibre as a Sensor (FaaS). So those tests and experiments started already in 2012 helped us successful participation in 2015 (DOBI) and CLONETS (2017). Such results are very important for CESNET, of course situation in every NREN is different. But such experiments/testing are really important for real networking scenarios, not just experiments for experiments. 33

34 High speed systems testing Filtration tests this figure from 2012 and 100Gb/s but also valid for 150G and 200G speeds. The spectrum has the same bandwidth. Nothing from the past is lost:-) Linear effects like chromatic dispersion can be compensated by electronics linear math) but no nonlinearities! 34

35 High speed systems testing 2015: 2x200G ALU 200G ECI over 2000km (for 20 years of CESNET celebration:-). Not easy even this configuration was 1 lambda only. Fibre Bragg gratings were deployed, tested and tuned. 35

36 High speed systems testing 2016: 400G (DP-64QAM) Nokia. 64QAM sensitive to noise and nonlinearities. Reach limited. 2016/17: 200G Coriant bidirectional 200G coherent over single fibre : 200G open Voyager box planned for autumn/winter. 2017: 400G Ciena as part of GN4 testing. Interesting 1RU box with true 400G modulation. Next step 600G. Perhaps in terabit rather difficult (or just expensive) 1 terabit still distant...or not? Any real experience? 36

37 High speed systems testing Interesting and useful results participation in new fresh projects. Support for new applications no more lost warranty from some vendors. Data transmission is just normal standard. Not enough anymore. Fibre as a sensor is serious nowadays (CESNET results will be presented at NGON US, San Francisco, 2017). Europe is no longer at the forefront prime example can be quantum technologies, e.g. cryptography. 37

38 Conclusion For NRENs it is very important to gain and maintain access to all layers of their network Fibre layer it is generally accepted fact Transmission Danger of (single) vendor lock in Open Line Systems New aplications T/F Quantum optics Sensing projects. 38

39 Acknowledgement Lada Altmannová, Michal Altmann, Ondřej Havliš, Michal Hažlinský, Tomáš Horváth, Jan Kundrát, Martin Míchal, Jan Nejman, Petr Münster, Jan Radil, Pavel Škoda, Martin Šlapák, Radek Velc, Rudolf Vohnout Jan Gruntorád, Vladimír Smotlacha, Jakub Mer, Václav Novák, Karel Slavíček Ondřej Číp, Šimon Řeřucha, Jan Hrabina, Martin Čížek, Miloslav Filka 39

40 Thank You for Kind Attention! Questions? 40

41 Stable Optical Frequency and Precise Time Transfer over 406 km - Study Allow long-term measurement of the stability and shape deviation of the containment buildings MWe of total installed capacity two PWR reactors, each protected by the containment building Precise measuring methods based on Fibre Bragg Gratings strain gauges

42 Stable Optical Frequency and Precise Time Transfer over 406 km - Study

43 Stable Optical Frequency and Precise Time Transfer over 406 km - Study Terminal 1 ILA 1 ROADM 1 WSS 1 Terminal 1 Terminal 2 Terminal 2 degree 2 degree 3

44 Joint Bidirectional Amplified Time+Frequency Transfer Operational since 2014, 800 GHz in green 306 km ~ 85.1 db one way Contains 26 db span

45 Joint Amplified Time+Frequency Transfer Credit: Cizek16

46 Comparison of Passive and Amplified TDEV < 20 ps Transmissions Single path passive 78 km link Single path bidirectional amplified 306 km link