Transport SDN: The What, How and the Future!

Transcription

1 Transport SDN: The What, How and the Future! Inder Monga Chief Technologist & Area Lead, ESnet ONF Research Associate Transport SDN Panel

2 Agenda Topics What is transport SDN? Use-cases Transport SDN demonstration Architecture and Standards

3 What is Transport SDN? Control of Optical Transport networks using OpenFlow Network elements expose the switching, cross-connect and flow aggregation capability L0 and L1 switching and cross-connects Hybrid packet-optical switching and aggregation Panel discussion today will expose multiple facets of this new direction

4 Transport SDN Block Architecture Applications Northbound Interface Northbound Interface Network Control Layer SDN Controller Network Virtualization SDN Controller SDN Client OFw and Ofc OFw and Ofc Topology, control & statistics Network Infrastructure Layer OFw: OpenFlow Wire OFc: OpenFlow Config

5 Agenda Topics What is transport SDN? Use-cases Transport SDN demonstration Architecture and Standards

6 R&E network design trends driven by Big-data Flows Buying Circuit Services Lease Dark Fiber Multiple 10G (Multiple) 100G IP Dialtone Steer Big Data flows Regional Footprint Global, Federated Multi-domain

7 drives new network architectures (1) [Dynamic] Optical Bypass Separation of large flows, from L2/MPLS circuits to L1 circuits Traditionally has been very complicated, vendor dependent and notinteroperable ARCHSTONE project DOE

8 drives new network architectures (2) Packet-Optical Integration driving layer collapse Packet switching marries Optical transport nodes thanks to merchant silicon LH Optics marries core routers thanks to coherent technology and optical integration

9 drives new network architectures (3) No uniform way to manage or create multi-vendor, multi-layer networks or multi-domain optical bypass Packet and Optical devices managed in totally different ways Multi-vendor networks are islands No global topological visibility GMPLS and vendor-specific hacks needed in current approach

10 ESnet Transport SDN Demo BW on Demand App Topology Monitoring App OSCARS ESnet SDN Controller 20G L1 Tunnel ESnet LIMAN Production Network Path #1 20G 20G OTS Path #2 Brookhaven National Laboratory Testbed OTS 40G Mellanox bnl-tb-wdm-3 100G bnl-tb-wdm-4 Mellanox Path #3 SDN Controller communicating with OTS via OpenFlow extensions Bandwidth on Demand application for Big Data RDMA transport 3 physical transport path options (with varying latencies) Implicit & explicit provisioning of 10GbE/40GbE services demonstrated

11 Community has taken it on to build Standards Open Network Foundation has formalized a Open Transport Working Group Participation from many transport, optical and router vendors OIF has formed a Carrier SDN group To discuss carrier requirements for SDN Other conversations and standards body co-ordination in place

12 Why Transport SDN? Automation Centralized management applications aka OSCARS Scaling End-to-end service delivery Works for IP and non-ip protocols Virtualization Multi-layer abstracted to a single end-to-end connection 12/18/12 Inder Monga, OTS Demo 12