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Evolving Multi-layer Network Architecture with SDN Control Soumya Roy Infinera Corporation Soumya Roy, Infinera Corporation 1 | © 2015 Infinera Outline Use Case for Multi-Layer SDN for SP networks Why Multi-layer SDN? What are the L0-L1-L2 components? Deployment scenarios of SDN 2 | © 2015 Infinera Transport SDN use case for R&E Networks Application Multi-Layer SDN controller OpenFlow/ REST API Tier1 site MEF L2 Services Tier2 site 3 | © 2015 Infinera Packet Optical Transport Network Pool of OTN B/W Pay as you grow B/W OTS REST API to manage L2 Services Tier1 site • • • Dynamic activation of services Efficient use of shared resources Lower network TCO LHC Courtesy: GEANT Transport Network-as-a-Service Access via Web-browser Customer X Customer-Y Internet Carrier SDN Controller A REST API Customer-Z L1/L0 NE Customer Console Customer-X B Programmable Packet-Optical Tansport Layer Customer-Z D Customer-Y Customer-X C Network access ports defined per end-customer Policy & SLA management centralized in Carrier SDN controller End-customer driven L1/L2 bandwidth services 4 | © 2015 Infinera Why SDN for Multi-Layer Networking? Bandwidth growth & network costs not aligned • Organic cost reductions alone insufficient for minimizing cost/bit Network layers operating in isolation, not cooperation More cross-layer intelligence needed for optimizing traffic Inter-layer/inter-domain control plane lacking IP/MPLS Network Layer Vendor X Optical Transport Network Layer Vendor W 5 | © 2015 Infinera Vendor Y ? Vendor Z • Simplify & Speed Provisioning • Enable Optimization Evolution Towards Intelligent Transport Expensive Network Intelligence IP/MPLS Routers PacketOptical Transport (P-OTN) Increase Scale, Reduce TCO Intelligent Transport Networking 6 | © 2015 Infinera Scalability Convergence Automation Super-channel Transmission Coherent, Ready for 1TbE Multi-layer Switching OTN, WDM, ROADM, MPLS Open Software Control Programmability Resiliency Intelligent transport networking simplifies total network & enables cost efficiency Multi-layer Automation for Intelligent Transport SDN Multi-Layer Orchestration & Optimization Analytics Provisioning IP/MPLS Layer $$$,k W Router Digital Switching Optics $,W Converged P-OTN Layer 7 | © 2015 Infinera Need for multi-layer representation, topology computation & provisioning SDN approach facilitates orchestration across layers & domains Benefit: Network carries traffic at the most optimal layer SDN as good as the Underlying Data Plane Programmable Packet Optical Transport Networks The ability to control network resources and properties at a distance “No Compromise” for any applications 8 | © 2015 Infinera These characteristics are absent from traditional optical networks Optimized L0-L1 Switching Architecture Service-level digital switching & grooming (Ethernet/SDH/OTN/SAN) Photonic switching of super-channels 9 | © 2015 Infinera Digital Switching Optical Switching ODU0/flex and packet switching granularity Wavelength & super-channel granularity Digital grooming maximizes WDM fill -> CapEx savings Optical express of filled superchannels -> CapEx savings Sub-l switching & service protection -> OpEx savings Reconfigurable super-channel switching -> OpEx Savings Bandwidth Virtualization TM 40GbE service demand 200 Gb/s 65 Gb/s 75 Gb/s 115 Gb/s Total In use 10GbE service demand Foundational Elements • Super-channels • OTN Switching • GMPLS Control Plane Digital OTN abstraction of BW delivers optimal fit for SDN In addition to OTN, SDN-control of ROADMs makes sense But Controlling other analog functions (e.g. power) directly is too complex “Lots of physics is used to enhance transmission performance. SDN controller will not be able to manage this constant evolution” – Vz 10 | © 2015 Infinera SDN control of Instant BandwidthTM Deploy Service-Ready Bandwidth with Super-channels Dynamically control OTN services via Bandwidth virtualization Dynamically activate additional line side BW via Instant Bandwidth 100G activated 100G available; software-defined activation 100G client 10G client traffic traffic 2.5G client traffic DTN-X 100G Era: 500G Pool Nx100G Enabled Per Line Module 11 | © 2015 Infinera Enabling Efficiency & Flexibility through L0, L1 & L2 Integration Router Data Center ETH INTF Transport based Aggregation VSI PW ‘Q’ ‘Q’ AC AC VSI VSI PW PW ‘Q’ ‘Q’ ‘Q’ AC VSI PW ETH INTF ‘Q’ ‘Q’ ‘Q’ ‘Q’ ‘Q’ TC TC TC TC TC 12 | © 2015 Infinera Network Efficiency Gains PVW 1 Superchannel PVW n Superchannel TC TC TC TC TC Sub-l Digital func. l Optical func. Flow Mapping & Packet QoS Packet classification, processing, scheduling, shaping 2 3 Grooming, Switching, WDM switching, Shared Mesh Protection restoration Optical transport network AC Dynamically Resizable ODUflex Scheduler 1 1 Class/Flow-based CoS Scheduler n Packet-Aware Optical Transport Real-world Deployment 13 | © 2015 Infinera Virtualization of the Optical Layer with OTS DC replication App Pacnet Enabled Network (PEN) OSS/BSS PEN SDN Control Layer Self Service Portal • • • • • Programmable Web 2.0 APIs End points Bandwidth Duration Latency Etc. Customer Console APIs Open Transport Switch software (OTS) Singapore Data Center DTN-X Pan-Asia Network 14 | © 2015 Infinera Customer App Key Benefits Hong Kong Data Center Tokyo Data Center • Understands daily data replication required • Monitors spot pricing • Determines optimal time to initiate connection • End user gets best pricing, pays only for BW needed • Pacnet optimal resource utilization & sticky customer service Pacnet Deployment Use Case Pacnet deployment of first widely commercially available Network Virtualization of the Optical Layer using Infinera Open Transport Switch (OTS) Extends PEN Ethernet NaaS to new SDNcontrolled dynamic optical layer increasing NaaS to Nx10G & Nx100G levels 15 | © 2015 Infinera Telefónica Multi-Layer SDN Architecture PoC Network as a Service (NaaS) Polic y Agen t ALTO Server ABNO Controller VNT M L3 PCE L1 PCE Topology Module Provisioning Manager Application: Dynamic MPLS tunnel service creation in multi-layer, multivendor environment. OAM Handler Multi-layer PCE-based controller: Point and click IP/MPLS services w/automatic router & transport layer provisioned automatically I2RS Clien t Multi-Layer SDN Control Layer MX-240-2 10G MX-240-1 10G Multiple south-bound protocols • • • • • REST/JSON OpenFlow Netconf/YANG PCEP BGP-LS MX-240-3 OTS Open Transport Switch (OTS) 10G 10G 100G DTN2 OTS 100G 10G 10G OTS Digital Switching 100G DTN1 16 | © 2015 Infinera Bandwidth Virtualization DTN3 DWDM Super-Channels Intelligent Transport Abstraction Multi-layer orchestration with OSCARS-TE Configuratio n Manager ESNet Circuits Reservation System (OSCARS) Topology Exchange Multi-Layer Topology App Multi-Layer Path Engine Multi-Layer Provisioning OSCARSTE Multi-Layer SDN Management Modules SDN Controller Traffic Optimization Engine Floodlight OpenFlow 1.0 Site A Site B Packet Network REST/JSON B A A, B, C – Packet Switches OTS OTS C OTS Y X, Y, Z – Optical Transport 17 | © 2015 Infinera X Z Optical Transport Network Hot Interconnect 2014 Summary Intelligent Transport drives new approach to scaling networks • Service-ready capacity, BW delivery @ Internet speed • Converged Digital (packet, OTN) and ROADM operations Multi-Layer SDN has significant benefits • • • • Streamline multi-layer, multi-domain operation Rapid application development through standard APIs New dynamic “on-demand” services (eg, NaaS, BoD) Global view creates opportunity for total network optimization Carriers seeking evolutionary, open approach • Leverage existing robust optical transport control plane functions • Open SDN control layer, flexible integration options 18 | © 2015 Infinera Thank You 19 | © 2015 Infinera