Next Generation IP over WDM Network Architectures Geoff Bennett Director of Product Marketing, Infinera
Acknowledgements Curtis Villamizar Drew Perkins Serge Melle Infinera Confidential and Proprietary 2
Agenda Where did we begin? Defining the problems Solving the problems: Lower CapEx Lower OpEx Faster service delivery Examples Infinera Confidential and Proprietary 3
Where did we begin? Voice Data Video Internet ADM ADM ADM ADM Fiber Infinera Confidential and Proprietary 4
Three fundamental changes IP (private) and Internet Transmission moves to WDM all-optical WDM IP Convergence WDM Massive Increase WDM In Demand Fiber Infinera Confidential and Proprietary 5
Implications for IP and Optical Compatibility System vendors move to all optical architectures WDM and IP moved further apart than ever before Sell off component divisions Optical systems vendors Component company Component company Component company Infinera Confidential and Proprietary 6
Defining The Problems Need to drive out CapEx Simplify layers? Remove equipment? Need to drive out OpEx IP and optical have different skill sets Must reduce the operational burden as new service demands escalate? Improve service delivery time Why do I have to wait between 6 and 20 weeks just to get a transponder card? Too many different transponder types!!! Infinera Confidential and Proprietary 7
Lowering CapEx Infinera Confidential and Proprietary 8
Cost Issues in IPoWDM Networks 1. High cost of IP router ports Infinera Confidential and Proprietary 9
Industry Data Points Relative cost per Gb/s 100% Significant difference between IP and transport equipment 80% costs 60% Up to 5x differential between 40% router & transport DWDM optics 20% Opportunity for greatest CapEx savings: 0% 640G Core Router (no line 800G DWDM Terminal (no Cap or reduce router scaling interface cards) transponder) Cap or reduce number of router 120% ports required Drive functionality into the 100% DWDM transport layer 80% Focus should be on minimizing 60% total network cost 40% optimizing between IP and 20% transport layers 0% 40G SR POS (router) 40G POS DWDM (router) 10G SR POS (router) 10G DWDM Transponder (<500km) 10G DWDM Transponder (1500km) Infinera Confidential and Proprietary 10
Cost Issues in IPoWDM Networks 1. High cost of IP router ports 2. High cost of IP router ports Infinera Confidential and Proprietary 11
Network Cost vs. Interface Type ost/traffic Volume IP Network C 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 10GbE OC-768 POS OC-192 POS Mixed OC-192/768 POS 20% 18% 16% 14% 12% 10% 8% 6% 4% 2% 0% IP Traffic Volume (Tb/s) High cost of Layer 3 POS router ports Historically lower cost points for Ethernet interfaces & switches Cost savings from use of converged Layer 2/3 switches ( Ethernet router ) Infinera Confidential and Proprietary 12
Cost Issues in IPoWDM Networks 1. High cost of IP router ports 2. High cost of IP router ports 3. High cost of IP router ports Infinera Confidential and Proprietary 13
IP Network Architecture Present Mode of Operation IP core links (router trunks) primarily connected between adjacent router-adjacent router IP core links carried over dedicated wavelengths on WDM network Little/no router bypass (and thus little pass-through traffic in WDM layer) End-end IP demands pass through multiple router hops Consume routing capacity for pass-through demands Increasing inefficiency & cost as traffic volume scales Infinera Confidential and Proprietary 14
IP Network Architecture Future Mode of Operation Service demand As IP traffic volume grows. Minimize end-end IP demands transiting through intermediate router hops Increase number of direct router-to-router t t core links (router trunks) Router bypass for end-end demands between nodes Traffic offloaded from three pairs of router ports Infinera Confidential and Proprietary 15
Network Cost vs. IP Bypass (10GbE) 100% 95% 90% 85% 80% 75% Relative IP Network Costs (10GbE Ports) 0.298Tb/s 0.849Tb/s 2.384Tb/s 6.75Tb/s 19.072Tb/s 38.145Tb/s Relative WDM Network Costs (10GbE Ports) 100% 0.298Tb/s 0.849Tb/s 95% 2.384Tb/s 6.75Tb/s 90% 19.072Tb/s 38.145Tb/s 70% 0 10 20 30 40 50 60 70 80 85% 0 10 20 30 40 50 60 70 80 Number of IP Bypass Links Number of IP Bypass Links Source: Network Cost Savings from Router Bypass in IP over WDM Core Networks Serge Melle, Drew Perkins and Curtis Villamizar http://www.infinera.com/technology/techpapers.html Infinera Confidential and Proprietary 16
Lowering OpEx Infinera Confidential and Proprietary 17
Re-unite IP and Optical Make optical more compatible with IP Optical Network Staff Network Staff IP Network Staff Infinera Confidential and Proprietary 18
Re-unite IP and Optical: How? Put digital back into the optical network Hide the physics from the network designer Remove the cumulative problems of optics Loss, Chromatic dispersion, PMD, Amp balancing Put back point and click provisioning Put back digital PM and OAM Enable GMPLS to reach its full potential Without the crippling cost of external cross-connects Infinera Confidential and Proprietary 19
Faster Service Delivery Infinera Confidential and Proprietary 20
It takes a long time to roll out a major optical transmission network or does it? Infinera Confidential and Proprietary 21
Forecasting capacity growth is one of the biggest problems for the network designer It takes my optical supplier X months to deliver transponders My traffic forecasts have to be absolutely accurate! With dozens of different transponders and muxponders, how can I keep stocks? Infinera Confidential and Proprietary 22
Just-In-TAM These companies can offer the fastest turn-up of high- speed bandwidth in the industry 1. Your Infinera network offers 100G capacity with each DLM. 2. Customer order comes in. Pre-provision and test if desired. 3. Order two Tributary Adapter Modules, one for each end point. 4. TAMs arrive within 10 days of order. 5. Install TAMs, activate, and test. 6. Connect to customer. Start billing! Service Order: 10G wave Infinera Confidential and Proprietary 23
Proving the concept 10G in 10 days Level3: Interoute XO: 10GbE LAN PHY We've pretty 10G much in 10 built Days a national network 10G in 10 Days in eight weeks since signing the contract, and we can increase capacity pretty much at the touch of a button. It has taken the guesswork out of the optical network. We often get last-minute demand from the sales teams, and you need a technology partner that Cox: can help meet that Carphone demand. Warehouse: Owned -backbone Paul Jackson, Head of Owned Transmission backbone Infinera Confidential and Proprietary 24
Solving The Problems Driving out CapEx Optimize router ports vs traffic demand Result: cost-optimize overall network Need to drive out OpEx Make optical more compatible with IP Put the digital back into the optical network: Digital design, digital service provisioning, digital performance monitoring Improve service delivery time Rapid network deployment Tolerant to unforecast service demands d Infinera Confidential and Proprietary 25
Thank You Geoff Bennett gbennett@infinera.com Infinera Confidential and Proprietary 26