AGILE OPTICAL NETWORK (AON) CORE NETWORK USE CASES
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2 AGILE OPTICAL NETWORK (AON) CORE NETWORK USE CASES PAOLO FOGLIATA - EMEA IP Transport, Director Optical Networking Dec 3, 2014
3 1830 PSS MARKET MOMENTUM 100G DEPLOYMENTS ACCELERATE 300+/WEEK 400 Manufactured 100/200G units PSS Customers G deployments PSS Customers 100G Customers Multi-Tera OTN Customers in 70+ countries
4 AGENDA 1. BUSINESS-DRIVEN NETWORK DESIGN 2. ARCHITECTURE MODELING 3. CASE RESULTS 4. CONCLUSIONS 4
5 BUSINESS-DRIVEN EVOLUTION TOWARDS THE TARGET NETWORK THE APPROACH Solution Architecture Planning & Design Network Integration Network Transf./Migra tion Operations Continous Service Improvment NETWORK LIFE CYCLE TOP-DOWN If we could start from scratch... and build an ideal network (scalable, lean, dynamic, lowest cost per bit) we would need to know the Transport demand evolution...and design the network to correspond / anticipate that demand". "in looking at available network assets and searching for the way of putting those cost-effectively together, it is a good to know what the ideal network should be to most cost-effectively serve the demand This exercise will reveal the necessary POPs, Nodes/POP, interfaces per Node, Topology, Resilience; discussion on leveraging technology advancements to reach the best blueprint; also evaluate idea of the cost of such a network, and intelligence looking at operational considerations, NOC. BOTTOM-UP what we should strive to arrive to... in a business-gain driven step-wise network consolidation approach, taking into account existing assets 5
6 OPTIMAL NETWORK DESIGN TECHNOLOGY TRADE-OFFS Capacity low high IP Router OTN Switch Ethernet Switch Wavelength Switch high low Cost per bit Wavelength switches provide the highest capacity and the lowest cost per bit. Electrical Switches provide grooming low speed clients into wavelengths. Ethernet Switches provide low cost packet switching but have limited visibility into the service layer. IP routers provide highly intelligent and dynamic services but for a higher cost and lower scale. Higher functionality increases network cost and should be justified by service offering. Optimal network cost is achieved by selecting the appropriate technology for transport and switching of services. Multi-protocol switches with multi layer control plane can lower overall equipment cost and operational expenses unifying the networking OPTIMAL NETWORK DESIGN TRANSPORTS SERVICES AT THE MOST EFFICIENT LAYER 6
7 OPTIMAL NETWORK DESIGN TRAFFIC TRENDS FORECAST: HOW TO GET THEM CORRECTLY? NETWORK FUNCTIONS VIRTUALIZATION (NFV) VIRTUALIZE (SELECTIVELY) AND MOVE TO THE CLOUD Cloud based computing drives traffic and connection complexity in the Data Centre Applications are allocated, run, moved among virtualized computing resources Dedicated hardware Established traffic patterns Standard high volume servers Dynamic Traffic inter-dc Patterns Firewall EPC/PCRF DPI RR Virtual Virtual Appliance Appliance Virtual Virtual Appliance Appliance Virtual Virtual Appliance Appliance Virtual Virtual Appliance Appliance Content Delivery Network Intrusion detector DNS/DHCP Session Border Controller Network controller IMS REQUIREMENTS FOR DESIGN ARE FOR SCALING IN BANDWIDTH WITH FLEXIBILTY IN ACCOMPLISHING CHANGES OF TRAFFIC PATTERNS 7
8 AGENDA 1. BUSINESS-DRIVEN NETWORK DESIGN 2. ARCHITECTURE MODELING 3. CASE RESULTS 4. CONCLUSIONS 8
9 IP OVER OPTICAL NETWORK ARCHITECTURE OPTIONS FIXED MODE OF OPERATION FLEXIBLE MODE OF OPERATION COORDINATED MODE OF OPERATION Static WDM photonics Point-point topology 10G-40G wavelengths (no flexibility to traffic pattern changes) No optical control plane ROADM-based photonics Mesh topology 100G wavelengths Photonic control plane Direct Wavelengths Passing-Through Agile Optimal OTN/ROADM architecture Flexible OTN/Lambda grooming MRN design and control plane Integrated Operational Workflow IP over AON IP and WDM IP over WDM (Agile Optical Network) 9
10 IPoWDM ( WDM SOLUTION ) MODELING REFERENCE IMPLEMENTATION 10G Mux ODU2 B/W out Local OTS (WSS s+oa) 100G OT/Muxp ROADM Shelf+ WDM Common Parts 1G/10G/TDM/ 100G All 100G O-GMPLS 1G/10G/TDM 100G native NETWORK CONFIGURATION NODE ARCHITECTURE NODE CONFIGURATION REQUIREMENT High speed Optical Backbone for forecasted increase in traffic Minimise network cost Improved Reliability THE SOLUTION 1G/10G/TDM multiplex over 100G wavelength All Optical transport of 100G Evolution path to 200G and beyond 100G with SD-FEC needs less regeneration All Traffic multiplexed at 100G =>lower cost per bit than 10G/40G 100G transported transparently =>minimised OEO Photonic optical GMPLS (O-GMPLS) with PRC =>50ms protection / support of multi link failure Colorless-directionless ROADM with local OTS to support O-GMPLS 10
11 IPoAON ( OTN SOLUTION ) MODELING REFERENCE IMPLEMENTATION 1G/10G/TDM 100G uplink OCS Client Cards OCS Shelf+Common Parts with redundant Matrix ROADM Shelf+ WDM Common Parts 100G All 100G E-GMPLS 1G/10G/TDM 100G native 100G uplink NETWORK CONFIGURATION NODE ARCHITECTURE NODE CONFIGURATION REQUIREMENT High speed Optical Backbone for forecasted increase in traffic Minimise network cost Improved Reliability THE SOLUTION 1G/10G/TDM grooming over 100G uplink All Optical transport of 100G Evolution path to 200G and beyond 100G with SD-FEC needs less regeneration All Traffic groomed at 100G =>lower cost per bit than 10G/40G 100G transported transparently =>minimised OEO 100G uplinks from OTN needs less intra NE OEO Electrical GMPLS with PRC =>50ms protection / support of multi link failure 11
12 AGENDA 1. BUSINESS-DRIVEN NETWORK DESIGN 2. ARCHITECTURE MODELING 3. CASE RESULTS 4. CONCLUSIONS 12
13 TCO EVALUATION POWER AND SPACE VALUES Estimated Power Consumption equipment excluding air conditioning and batteries Estimated Floor requirements (shelves) For this Customer Case, in TCO economical analysis, even if modeled, floor Costs are set to ZERO 13
14 CAPEX EXPENSES Meshed Core network with 18 sites and traffic mix 1G/10G Ethernet (increasing) and SDH (decreasing) 5 years traffic forecast yearly increase 50% of year 1 OTN solution optimal in CAPEX required for running the network evolution, with investments at pacing with traffic grow WDM solution requires in general to anticipate investment in equipment, not fully used for a following period 14
15 TCO EVALUATION NPV RESULTS 15
16 WAVELENGTH FILLING YEAR(1) TRAFFIC LOAD/WAVELENGTH Bars represent filling for A-B wavelength paths in the network Bars represent filling for A-B wavelength paths in the network OTN Solution: avg 60% load, including restoration WDM Solution: 50% load on selected wavelengths 16
17 LINK FILLING (WAVELENGTHS/LINK) INCLUDING TRAFFIC AND RESTORATION In an 88 lambda design, both OTN and WDM solutions are future-proof, leaving >60% free lambdas in worst case in year(1). Nevertheless, if traffic will increase generating new P2P traffic directions among sites not currently logically connected, the WDM solution may exhaust the wavelength resources definitely in a period shorter than the OTN solution. Bars represent wavelength channels allocated/planned for links in the network 17
18 TCO EVALUATION PARAMETERS SENSITIVITY the OTN solution is presenting an optimal mix, with strong dependency on CAPEX - deriving from requirement to support traffic at the time it increases, with OPEX expenses needed to run the network at a relative percentage largely better than in the WDM solution in respect to OTN solution, the WDM solution shows a different mix, exploiting a larger percentage of OPEX the disoptimization deriving from oversized installed wavelength resources not optimally filled and not fully taking advantage of the flexibility of add/drop lower granularity traffic in intermediate sites. 18
19 AGENDA 1. BUSINESS-DRIVEN NETWORK DESIGN 2. ARCHITECTURE MODELING 3. CASE RESULTS 4. CONCLUSIONS 19
20 ARCHITECTURAL OPTIONS: DESIGN FOR FLEX MODULATION AND GRID IMPROVING SPECTRUM AVAILABILITY Near capacity exhaust 100G/ 200G/ 400G/ 1Tb 10G/ 40G Room for growth... 20
21 MULTILAYER OPTIMIZATION CAPEX AND OPEX HIGHLIGHTS HIGHLIGHTS (CAPEX) 100G is needed to face the quick capacity growth of traffic in the network Deployment of an OTN layer dramatically reduces the start-up CAPEX of the 100G solution OTN extends the network lifetime: allowing to minimize the total CAPEX during the network lifetime preventing from the need to deploy new DWDM networks Multi-layer optimization, with optimized forwarding at DWDM layer, enables bandwidth efficiency avoiding useless regenerations and minimizing the OTN matrices size HIGHLIGHTS (OPEX) Operational benefits Postpone deployment of new networks Any-client-to-any-line remote provisioning and reconfigurability Reduced footprint of OTN vs. cascade of muxponders Few client and line card types, against multiple muxponder and transponder types Simplified planning and larger flexibility for new traffic demands Less lambdas in the network Richer resiliency options Fast and bandwidth-efficient ODUk protection and restoration options, as an alternative to, or in combination with, photonic-layer resilience 21
22 AON VALUE IN CORE NETWORK EXECUTIVE SUMMARY Introducing a new product concept built on a next generation optical transport foundation Cloud applications, internet video, and other major drivers are transforming optical networks. Optimal Network design must capitalize on the strengths of each networking layer. Modeling of real network deployments will provide focus in technology selection. Next generation optical transport will center on the following key technologies. - CDC ROADM: colorless-directionless-contentionless optical switching - Multi-protocol Client-Unified Switching: Integrated grooming and filling of each wavelength - MRN control plane: Unified operations, balanced protection, and network optimization Agile optical networking solution from Alcatel-Lucent provides - Scalability: unparalleled network expansion with distributed switching - Versatility: reconfigurable at all levels. Dynamic protection and restoration. - Efficiency: fewer/smaller NEs with improved availability and reduced downtime ALCATEL-LUCENT CONFIDENTIAL SOLELY FOR AUTHORIZED PERSONS HAVING A NEED TO KNOW PROPRIETARY USE PURSUANT TO COMPANY INSTRUCTION
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