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C orporate O ptical B ackbone Net works

C orporate O ptical B ackbone Net works. Objectives and Concepts. COBNET's goal is to establish concepts and technologies for the next generation of Corporate Backbone Networks. COBNET is applying evolving optical multichannel technologies. wavelength division multiplexing (WDM)

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C orporate O ptical B ackbone Net works

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  1. Corporate Optical Backbone Networks Objectives and Concepts • COBNET's goal is to establish concepts and technologies for the next generation of Corporate Backbone Networks • COBNET is applying evolvingoptical multichannel technologies • wavelength division multiplexing (WDM) • optical space division multiplexing (SDM) • COBNET is pursueing the concept ofAdd/Drop Rings Concepts

  2. The Customer Premises Network Backbone • builds on Optical SDM Add/Drop Rings for short CPN distances or inside buildings • and on WDM Add/Drop Rings for larger CPN distances or for private MANs Add/Drop Rings

  3. The SDM Ring • combines 12 space channels on a SM fibre ribbon • operates at 1300 nm Add/Drop Rings

  4. The WDM Ring • combines 12 wavelengths on one SM fibre • operates around 1550 nm • with 1.6 nm channel spacing Add/Drop Rings

  5. Norwich Ipswich Cambridge London The Trial Network • A field trial in East England verifies concepts and technologies. • CPN backbones are established at two partner sites. BT Labs GEC Marconi Labs Trial Network

  6. Norwich Ipswich Cambridge BT Labs LEANet GEC Marconi Labs London The Trial Network • Wide-area CPN interconnection is provided across fibres of BT'sLondon East Anglian Network Trial Network

  7. Norwich Ipswich Cambridge BT Labs GEC Marconi Labs London The Trial Network • allowing clear-channel WDM connectivity across 180 km Trial Network

  8. Norwich Ipswich Cambridge BT Labs GEC Marconi Labs London The Trial Network A closer look at the nodes Trial Network

  9. The Trial Nodes • Wavelength or space channels are added/dropped in simple, low-cost Optical Add/Drop Nodes • all other channels are bypassed optically Nodes

  10. The Trial Nodes • Wavelength and/or space channelsare interchanged in a hybrid WDM/SDM Cross-Connect Node Nodes

  11. The Trial Nodes • Alternatively, channels may beswitched to the WDM WAN via aPublic Network Interface Unit Nodes

  12. The Components • WDM Lasers Economy is supported by the development of specific technological components ... Components

  13. The Components • SDM Laser Arrays Components

  14. The Components • Single-channel Receivers Components

  15. The Components • Receiver Arrays Components

  16. The Components • Clear-channel Retiming Chips Components

  17. The Components • Planar WDM (De)Multiplexers Components

  18. The Components • Tunable, planar WDM Add/Drop Muxes Components

  19. Option 2:MonostableThermo-opticalDigital Switch Option 1:Bistable MicromechanicalFibre Switch The Components • Optical Switches and Switch Arraysfor SDM protection switching Components

  20. Norwich CPN CPN MIB MIB Manager Manager SNMP SNMP MIB MIB Agent Agent Node Node Node Node Node Node Ipswich Control Control Node Node Control Control Node Node Cambridge Control Control Control Control Control Control BT Labs GEC Marconi Labs London The Network Management • An SNMP Agent interacts with the individual Node Controllers • Each CPN is managed by a CPN Manager Management

  21. COBNET Manager MIB Norwich CPN CPN MIB MIB Manager Manager SNMP SNMP MIB MIB Agent Agent Node Node Node Node Node Node Ipswich Control Control Node Node Control Control Node Node Cambridge Control Control Control Control Control Control BT Labs GEC Marconi Labs London The Network Management • A single COBNET Manager is reponsible for the entire Corporate Network Management

  22. COBNET Manager MIB Norwich CPN CPN MIB MIB Manager Manager SNMP SNMP MIB MIB Agent Agent Node Node Node Node Node Node Ipswich Control Control Node Node Control Control Node Node Cambridge Control Control Control Control Control Control BT Labs GEC Marconi Labs London The Network Management • Management information is exchanged inside CPNs via tone-modulated subchannels within the optical channels. Management

  23. ATM IP Norwich SDH OTN ATM Ipswich OTN SDH SDH Cambridge BT Labs GEC Marconi Labs London The Application Trial Infrastructure • includes SDH layer equipment, • ATM and IP layer equipment, • proprietary transport layer equipment (Siemens Atea OTN), Applications

  24. MM Server ATM IP PBX MM Terminals Norwich VoD SDH OTN Server ATM Ipswich OTN SDH SDH Cambridge BT Labs GEC Marconi Labs London The Application Trial Infrastructure • allowing Video on Demand and Video Conferencing applications by ACTS project AMUSE, • voice PBX applications, Applications

  25. PCs MM Server ATM IP PBX MM Terminals Norwich VoD SDH OTN Server ATM Ipswich OTN SDH SDH Cambridge BT Labs GEC Marconi Labs London The Application Trial Infrastructure • traditional business applications, • and a high-quality video transmission application. Applications

  26. The Consortium Consortium

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