Slides13 - 1 WAN Optical Network Design WAN Optical Network...

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Unformatted text preview: 1 WAN Optical Network Design WAN Optical Network Design Telcom 2110 Network Design David Tipper Graduate Telecommunications and Networking Program University of Pittsburgh Slides 13 WAN typically have a mesh or ring design Many algorithms/optimization formulations/design tools for WAN packet network design WAN Network Design Tend to be imbedded in network technology /data rate layer Different design techniques and metrics at different layers IP MPLS VPN design WDM circuit switched routing and wavelength assignment In general techniques are either Graph theory based Optimization based TELCOM 2110 2 Optimization based Heuristics Considered Routing heuristics for IP layer design Consider Optimization and heuristic techniques for VPN design Examine Optical Layer design 2 Optical Layer Equipment WDM Terminal Wavelength Division Multiplexing Terminal Multiplexes/demultiplexes multiple optical analog signals at different wavelengths/frequencies into a single fiber. OTS Optical Transport System Pair of WDM terminals in a point-to-point configuration. OT Optical Transponder Converts wavelengths between switches or OXCs to specific wavelengths of OTS (regenerates specific digital, optical signal) OADM Optical Add-drop Multiplexer A WDM terminal that can add/drop individual wavelengths from a WDM multiplexed signal TELCOM 2110 4 wavelengths from a WDM multiplexed signal. OXC Optical Cross-Connect Cross-connects wavelengths, either with electrical fabric (does O/E/O conversion) or optical fabric (no electrical conversion). Equipment Across the WAN cust router Access router BB router packet packet OC-3 ADM ADM ADM OC-48 UPSR OC-3 OC-192 ADM ADM ADM OC-12 OC-12 OC-48 BLSR packet packet ADM ADM OXC OT WDM WDM OT OT WDM WDM OT OXC 1 2 multi OC-192 OC-192 multi OTS OTS OXC OC-192 2 1 TELCOM 2110 5 ADM SONET Add/Drop Multiplexer UPSR SONET Uni-directional Path Switched Ring BLSR SONET Bi-directional Line Switched Ring OXC Optical Cross-Connect OTS Optical Transport System OT Optical Transponder cust router Access router BB router OC-3 ADM ADM OC-48 UPSR OC-3 OC-12 OC-12 OC-192 ADM ADM OC-48 BLSR 3 Optical Transport Network (OTN) (ITU-T G.709/Y.1331) Transparent support for different client signals IP ATM ETHERNET STM -N Optical Payload Unit ( OPU k ) IP ATM ETHERNET STM -N Optical Payload Unit ( OPU k ) signals Includes leased lines/wavelengths Easy interconnection of different administrative Optical Transport Unit ( OTUk ) Optical Channel ( OCh ) Optical Multiplex Section ( OMSn ) OTM Physical Optical Data Unit ( ODUk ) Optical Transport Unit ( OTUk ) STM -N GbE- STM -N GbE Optical Channel ( OCh ) Optical Multiplex Section ( OMSn ) OTM Physical Optical Data Unit ( ODUk ) 6 administrative domains Optical Transmission Section ( OTSn ) Optical Transport Module of order n (OTM -n, n 1) Section (OPSn ) OTM -0 OTM -nr, n>1 Optical Transmission Section ( OTSn ) Optical Transport Module of order n...
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This note was uploaded on 09/28/2010 for the course SIS TELCOM 21 taught by Professor D>tipper during the Spring '10 term at Pittsburgh.

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Slides13 - 1 WAN Optical Network Design WAN Optical Network...

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