Implementation of a new Optical Platform in X-WiN Peter Kaufmann/DFN TERENA Network Architects Workshop 22. November 2012
Agenda • Reasons & Requirements • Results • Status of Implementation Page 2
Reasons & Requirements (1) Why change? • Capacity: Less than 50% of our lambdas are in use! • Upgrade towards 40/100G only with new h/w • Current equipment is approaching end of life (from 2006) (investments into old h/w not usefull) Most important • Operational inflexibilities very annoying – as lambdas has to be changed – as more native lambda services are provided/added – as transponders are dedicated/configured for each connection Page 3
Reasons & Requirements (2) Add flexibility • Transparent lambdas between any core nodes (no OEO) • Protected lambdas • Easy and quick channel setup – rapid service delivery – flexible use of transponders – ability to reroute lambdas easily in case of serious link problems • Optical switching facilities at fiber junctions • Sub-Lambda switching facilities (OTN) (due to 10/100) Page 4
Reasons & Requirements (3) But also: Increase transport capacity • compensate traffic growth • native 100G/channel capability for our most demanding users Page 5
Reasons & Requirements (4) New optical transmission system • About 80 lambdas • Support for native 10G & 100G services • Transparent lambdas between any core nodes (~1000km reach) • ROADM: directionless & colorless (not fully contentionless, no flexgrid), integrated OTN-Switching Migration philosophy • – On top of current fiber infrastructure (only few add. fibers) – 100G transponders where needed, when needed – Smooth migration, no operational „shut down“ Seite 6
Results • Call for tender (non open, 2 stages): November 2011 – After stage one, reduction to „some serious“ participants • Acceptance of tender: 10. May 2012 • Winner – ECI Telecom, http://www.ecitele.com – Israelien company, founded 1961 – about 2500 employes – New player in „NREN environment“ • Contract & order for migration: 14. May 2012 • Product family „Apollo“ – Optimized Multilayer Transport (OMLT) – integrated DWDM-/Switching-equipment – DFN: OPT9624 at all core nodes (plus OPT9608 for some clients) Seite 7
Results: ECI OPT96xx „Apollo“ 24/48 universal I/O slots Tbit/s Universal Switch: OPT9624/48 for Metro ODU X-connect/Packet Switching Core and Core/Regional/LH Flexible configuration: Photonics, ODU-XC, Packet switching 8 universal I/O slots OPT9608 for Metro Edge Flexible configuration: standalone WDM, 100G MPLS switching capacity 4 universal I/O slots OPT9604 for Metro Edge 50G MPLS switching capacity OPT9603 for Metro access OPT9603 - 2U height with 3 universal slots and In-Line amplifier Artemis: passive cages Artemis Quelle: ECI Telecom Seite 8
Results: Fiber set-up • High Capacity – 88 Lambdas per Fiber – Bandwidth up to 100 Gbit/s per Lambda • Flexible Routing of Connections – Reconfigurable Optical Add-Drop Multiplexer (ROADM) – Colourless/Directionless Add-Drop – Tunable Transponder • Switching Functions – Optional: 1Tbit/s Switching-Fabric per Node – Currently: Usage as ODU Cross-Connect – Future: In addition usage as MPLS- and Ethernet-Switch Seite 9
Capacities in Generations of WiN Bandwidth in Core of WiN (Wissenschaftsnetzes): X-WiN 2012: 8.800 Gbit/s X-WiN 2006: 400 Gbit/s G-WiN 2000: 10 Gbit/s B-WiN 1995: 0,622 Gbit/s Seite 10
Results: Fiber set-up Amplifier • Raman amplifiers compensate excessive attenuation on long spans • New: Mixture of Raman, EDFA • Requires additional maintenance procedures Redundancy • Customer connection: Redundant fiber with two Core Nodes (nearly all customers, 77% had not even 1 second interruption in 2011) • Further extension of redundant fiber connectivity Seite 11
Results: ROADM • High Capacity – 88 Lambdas per Fiber – Bandwidth up to 100 Gbit/s per Lambda • Flexible Routing of Connections – Reconfigurable Optical Add-Drop Multiplexer (ROADM) – Colourless/Directionless Add-Drop – Tunable Transponder • Switching Functions – Optional: 1Tbit/s Switching-Fabric per Node – Currently: Usage as ODU Cross-Connect – Future: In addition usage as MPLS- and Ethernet-Switch Seite 12
Results: ROADM ROADM functionality • Colourless: Flexible A/D on any available Lambda • Directionless: Flexible mapping on any required Direction (But still uni-directional use of each part of fiber pair) • Contentionless: Blocking-free switching of same colours, requires add. WSS (Not that important for DFN, partially possible, not 100%) • Flexgrid/Super Channels: Not required for DFN use cases during life time of gear • Each ROADM configuered with at least: 4 degrees + 2 A/D blocks, extension to 9 degrees possible • OTN-Switch complements sub-lambda switching done in routers • Restoration by ROADM: Switch time 1sec Seite 13
ROADM: Optical Architecture Source: ECI Telecom Page 14
ROADM: L1 Service Cards Client: SFP XFP OTN Multi service 10G 16 x SFPs SFP Mapper 2 lines AoC10 STM-1/4/16, OC3/12/48 SFP OTU-2/2e Muxponder or AoC FC1/2/4, GbE, SFP SDI, HD-SDI, DVB-ASI XFP SFP OTU1 Client: Multi service 10G XFP XFP OTN Mapper 10G LAN, 2 lines double TR10_4 STM64/OC192, OTU-2/2e FC8/10, Transponder XFP XFP OTU-2/2e Client: Multi service 40G XFP OTN Mapper 10G LAN, XFP RZ-DQPSK CMB40 QPSK STM64/OC192, XFP Line FC8/10, Muxponder OTU-3e OTU-2/2e XFP OTN Mapper OTU3 Regenerator REG40 QPSK QPSK Line Line OTU-3e OTU-3e OTN Transponder/ Mapper TR100 QPSK QPSK Muxponder 100G Line Line 100GbE OTU 4 Source: ECI Telecom Page 15
ECI: ROADM/Service-Cards North West East Without Fabric: L1 Service Cards Local A/D AoC10: 16*SFP -> 2*XFP-OTU2 TR10_4: 2*XFP -> 2*XFP-OTU2/2e TR100: 1*CFP -> 1*CFP-OTU4 (later) With Fabric: L1 Fabric Cards FIO10_5: 5*XFP -> Fabric FIO100: 1*CFP -> Fabric (later) Fabric FIO10_5: 5*XFP -> Fabric (later) FIOMR_16: 16*SFP -> Fabric Client page 16
Results: Switching • High Capacity – 88 Lambdas per Fiber – Bandwidth up to 100 Gbit/s per Lambda • Flexible Routing of Connections – Reconfigurable Optical Add-Drop Multiplexer (ROADM) – Colourless/Directionless Add-Drop – Tunable Transponder • Switching Functions – Optional: 1Tbit/s Switching-Fabric per Node – Currently: Usage as ODU Cross-Connect – Future: In addition usage as MPLS- and Ethernet-Switch Seite 17
Optical Transport Network (OTN) Source: Alcatel-Lucent Seite 18
OTN-Hierarchy Source: Alcatel-Lucent page 19
Switching: OTN-BB of X-WiN KI E • Operation of 1Tbit/s-Fabric (blue-red) GRE DKR ROS AW I DES – Initially at 14 core nodes HAM EW E – Optimized with current network FFO SLU BRE TUB PEP structure and latency ENS ZEU HAN POT HUB BI E ZI B – If needed: extensible MUE BRA MAG ADH PAD GOE DUI DOR KAS • OTN-Backbone (yellow) DRE LEI FZJ W UP MAR JEN BI R AAC CHE – Start: 2-3 OTU2-Connections per link GI E BON I LM FRA – Future: Extension towards OTU3/4 W UE BAY ERL GSI ESF KAI SAA REG • Access from User/Simple Core HEI FZK STB KEH FHM Node to Fabric STU GAR – All interfaces use OTH-framing BAS – Single or redundant OTU2e-connection to next one/two core nodes with fabric Seite 20
Switching: L1 Fabric Cards SFP 16 x SFPs OTN Low rate client SFP Mapper STM-1/4/16, OC3/12/48 1Tbps FIOMR_16 FC1/2/4 SFP ODU-XC interface GBE, SFP SDI,HD-SDI, DVB-ASI SFP OTU1 XFP Multi service OTN 5 x XFPs XFP Mapper 10G LAN, 1Tbps 10G client line FIO10_5 XFP STM64/OC192, ODU-XC XFP FC8/10, Interface OTU-2/2e XFP OTN Mapper 40G RZ-DQPSK 1Tbps FIO40 QPSK ODU-XC line card Line OTU-3e OTN 100G PM-QPSK Mapper 1Tbps FIO100 QPSK line card ODU-XC Line OTU-4 Source: ECI Telecom Page 21
ECI: ROADM/Fabric-Cards North West East Without Fabric: L1 Service Cards Local A/D AoC10: 16*SFP -> 2*XFP-OTU2 TR10_4: 2*XFP -> 2*XFP-OTU2/2e TR100: 1*CFP -> 1*CFP-OTU4 (later) With Fabric: L1 Fabric Cards FIO10_5: 5*XFP -> Fabric FIO100: 1*CFP -> Fabric (later) Fabric FIOMR_16: 16*SFP -> Fabric FIO10_5: 5*XFP -> Fabric (later) Client page 22
Universal Switch Fabric The fabric can support ODU-XC, MPLS switch or any mix of both (depending on the service cards ODU-XC 10GbE / STM1-64 / (ODU-0-4, Flex) installed in the system). 10G FC10 / OTU-2 OTN OTN STM1 / 4 / 16 / Scalable to 4Tbit and future 40G FC1 / 2 / 4 / GbE OTN OTN 16Tbit switching capacity (in multi-shelf Architecture) 100GbE 100G OTN OTN ODUk and ODU-Flex XC 100GbE 100G Transparency of timing and OH; Packet Packet Each ODUk container carries its 10GbE 10G own timing Packet Packet 1GbE 100G Each line card is configured to Packet Packet work towards the fabric in either Packet OTN mode or data mode Switching Source: ECI Telecom Seite 23
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