NTT Communications' Perspective on Next GEN Optical Transport Network
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1 OFC2014 Market Watch NTT Communications' Perspective on Next GEN Optical Transport Network Hisayoshi Yoshida NTT Communication Corporation 1
2 Traffic Trend The rapid traffic growth still continues. Especially, Mobile traffic increases more and more according as wireless technology evolution. 140, ,000 Traffic [PB/month] 100,000 80,000 60,000 40,000 20,
3 Demands for Network High Speed, Large Capacity & Quickness, Flexibility Packet Multiplexing Flexible design for service infrastructure Quickness Large Capacity (100G+) Simple Architecture Time to Market End-to-End resource control OAM Suitable domain for Hardware processing Suitable domain for Software processing Next Gen PTN/Optical SDN/NFV 3
4 DWDM Deployment History Today Transmission Capacity Over a Single Fiber [bps] 100T 10T 1T 100G 10G Liner(P to P) 2.4Gx48ch 10Gx80ch 40Gx40ch RZ-DQPSK 2.4Gbps/ch 40Gx40ch OXC DP-QPSK 10Gbps/ch 100Gx80ch 40Gbps/ch 400G? 100Gbps/ch 1T? Mesh Year 4
5 PTN and Optical Networks Edge Edge (1) Network Integration -Service network and Transport network -Wavelength layer and Transmission layer Service Edge Edge Unified Backbone WDM/OXC (2) Packet transferring optimization -Better efficiency by packet multiplex (3) Broad bandwidth -100Gbps (4) Better reliability and operability -Network (Node) integration -3 routes -CDC function (5) Global Seamless -Same architecture in domestic and global 5
6 NTT Com s Domestic Core Network CDC Function OXC (Multi-degree ROADM) Change route of wavelength by Remote operation. Reduction of On-site operation Quick Recovery from Disaster Tr Tr Tr OXC Optical Path Restoration Packet Transport LSP Protection (Hitless protection) Tokyo-Osaka:about 700km SDH Multiplexing Packet Multiplexing Fiber: DSF (ITU-T G. 653) Margin : Maintenance margin: 2.5dB Instantaneous loss variation : 1.0dB etc Laser Security : less than 500mW 6
7 Elemental technologies for 400G 40G 100G 400G Channel Spacing Fix (50GHz) Flex (12.5GHz x N) Flexible Grid Direct Detection Digital Coherent Mod. Format RZ-DQPSK DP-QPSK Single channel DP-QPSK or 16QAM SuperChannel / Pulse Shaping Fiber Cable DSF/SMF Low Loss fiber (SMF/DSF?) 7
8 DSF vs SMF DSF (G.653) Zero Dispersion wavelength: 1.5um Signal Wavelength: L-band Low Chromatic Dispersion Nonlinear Effect (4WM,SPM) Affective Launch Power is limited. (e.g. -1dBm/ch) High Raman gain SMF (G.652) Zero Dispersion wavelength 1.3um Signal Wavelength: C-band High Chromatic Dispersion Nonlinear Effect less-affective High Launch Power Low Raman gain 8
9 Upgrade to 400G/1Tbps (1) PKG Add (Preferable) 100G TRPN Add 400G TRPN Add 1T TRPN MUX/DMUX AMP 100G 400G 1T AMP MUX/DMUX 100G TRPN Add 400G TRPN Add 1T TRPN (2) SLTE Replace 100G SLTE AVOID channel fragmentation 100G Replace 400G / 1T SLTE 400G 1T 9
10 Power Efficiency of Transmission System Power Consumption / 10Gbps Normalized Normalized 2.4Gx48 x 46 10Gx80 x 40Gx40 x Gx80 x 400G 400G? x N? 1T 1T? x M? Power Consumption / Rack Expectation of drastic innovation on cooling technology 10
11 SDN Controller to look after entire NW Cloud/Virtualized DC OpenFlow SW API DC GW DC GW Service NW DC GW SDN Common Platform PTN/ OXC PTN/ OXC PTN/ OXC PTN/ OXC PTN/ OXC Next Gen PTN/Optical Protocol conversion SDN Controller Orchestrate endend resources over multi-layers 11
12 NTT Com s SDN Controller Architecture API NW Application NW APP (intra- DC) NW APP (inter- DC) NW APP (Open Source) NW APP (Third Party) Applications to add functionality API Common Framework Driver (plug-in) SDN Common Framework OFC CLI API Common framework North/South bound APIs Forwarding OpenFlow Switch Abstraction Appliance etc. EMS etc. Optical etc. Standard Interface Applicable device deployment 12
13 Next Gen PTN and SDN - Key for Success Shorten time-to-market No special hardware / Easy to deploy Independent of Vendor s development schedule Service differentiation Programmability / More flexibility Easy to create new service CAPEX / OPEX reduction Simple structure / Commoditized device Centralized & automated operation 13
14 NTT Communications Group contributes to customers' management innovations through Global Total ICT Outsourcing Thank You! 14
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