Open Transport Switch and Transport SDN

1 | Infinera Confidential & Proprietary

Open Transport Switch and Transport SDNLeigh WadeBusiness Development Director APACJune 6th, 2013www.infinera.com/go/sdn


Packet World

• Connectionless

• Enterprise origins

• Dynamic flows

• Innate control plane (EMS/NMS independent)

• Numerous distributed CP solutions

• Monolithic, closed systems

Transport World

• Connection (circuit) oriented

• Service provider origins

• Static pipes

• EMS/NMS + Cross-connect paradigm

• Nascent CP (GMPLS)

• Open, programmable systems

Some Historical Context

Historically, transport networks have actually been programmable, but via a proprietary NMS.


Rise of the Data Center• Cloud & content networking

• Distributed computing & M2M traffic

Convergence of networking layers• {Packet + OTN + ROADM + WDM} = Dynamic & Agile transport

• Necessity for economical scale & operational simplicity

Evolving cost/bit @ different layers• Transport economics create opportunities for multi-layer optimization

Emergence of (packet) SDN• Virtualization & Unification of entire network

Motivations behind Transport SDNThe Network is Evolving


Rapid & Flexible Bandwidth

• Turn-up bandwidth quickly to support applications

Simplify/Automate Operations

• Multilayer, multivendor & multi-domain orchestration

Improve Resource Utilization

• Coordinate & optimize between layers, select optimal path

Speed New Service Deployment

• Services created faster w/direct API access to transport layer

Extending SDN to Transport

SDN unlocks the value of dynamic transport bandwidth.

Applications

SDN Control Layer

Abstraction

Discover,Monitor,Control

• Multi-layer• Multi-vendor• Multi-domain

Packet flowsOTN circuits

Optical wavelengths

Physical Resources


Promise of Transport SDNMulti-layer, Multi-Domain, Multi-Vendor Abstraction & Automation

Domain 1 Domain 2

WDM

OTN

IP

This is what applications see

Vendor A Vendor B

Vendor X Vendor Y

= SDN Control

A B C D

IHGFE

J K L M

RQPON


SDN control of analog layer is too complex SDN needs a digital abstraction of the transport network Integrated switch fabric + WDM abstracts programmable pool of BW Leverages open & programmable GMPLS intelligence

SDN-Ready Transport NetworkingBandwidth Virtualization for Programmable transport

Bandwidth Virtualization™


FlexCoherent, Instant Bandwidth, Other SW controllable functions

Infinera Solution Vision

Switching

PIC WDM

DNA Management System OTS

GMPLS Control Plane

Digital

Digital

Digital

Bandwidth Virtualization

OpenFlow 1.x + Web 2.0 Protocols


Open Transport Switch is a light weight virtual switch employed in SDN architectures for facilitating resource discovery, monitoring and provisioning of transport flows

OpenFlow for provisioning function, adds other required protocols

Runs on top of programmable packet/optical transport platforms

Key Enabler: Open Transport Switch

SDN Control Layer

WDM/ OTN/

Packet

WDM/ OTN/

Packet

OTS OTS

Ethernet Ethernet

Applications


EthernetSwitch

OTN/MPLS/ DWDM

EthernetSwitch

OTN/MPLS/ DWDM

Ethernet Optical

OTS OTS OTS OTS

SDN Controller

Explicit Path Set Up (provision every node)

Compatible with Existing Control Planes

OpenFlow

Ethernet Ethernet Ethernet

LSR

LSR

LSR

LSRENET

ENET

ENET

ENET

OTS OTSOTS

OTSMPLSEthernet

POTN

POTN

POTN

POTN

OTSOTS

SDN Controller

GMPLS

Implicit Path Set Up(provision edge nodes only,

leverage existing control plane)

OpenFlow


Infinera and ESnet Transport SDN Demo

bnl-tb-wdm-3 bnl-tb-wdm-4

40G

100G

20G 20G

20G L1 Tunnel

SDN Controller communicating with OTS via OpenFlow

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

Topology Monitoring App BW on Demand App

ESnet SDN Controller

Mellanox Mellanox

Path #1

Path #2

Path #3

OTS

ESnet LIMAN Production Network

Brookhaven National LaboratoryTestbed

OTS


Use Case – Optimizing Inter-data Center Networking

Data Center

Routers TransportSwitch

Data Center

Optical TransportNetwork

SDN Orchestration

CentralizedIntelligence &

Control

Dynamic, flexible QoS bandwidth for packet flows

Layer 0/1/2/2.5/3 integration & abstraction

Centralized TE for better performance & utilization

Multi-layer resource optimization


Use Case – Multi-Layer Optimization

$,W

Router

Optics

DigitalSwitching

$$$,kW

Converged Packet/OTN/Optical Layer

IP/MPLS Layer

Next-gen networks will drive need for multi-layer representation, topology computation & provisioning

SDN approach facilitates orchestration across layers & domains

SDN Orchestration

Local IP net

Local Enet


Dynamically configurable L1 virtual networks

Multi-tenancy for P-OTS

Customer managed SDN Controller

Use Case – L1 Virtual NetworkNetwork-as-a-Service (NaaS)

Virtual Network SLice

Customer Virtual-Network Management

20G

SDN NetVisor


Extending SDN to Transport has significant benefits:• Lowers opex via open multi-layer, multi-vendor, multi domain orchestration• Lowers capex by optimizing flows across layers • Speeds service delivery for internal and external customers• Makes transport resources dynamic & visible to applications for new services• Creates the ability to easily slice the network

Transport platforms that can virtualize wavelengths into an abstracted pool of bandwidth are well positioned to adopt T-SDN

GMPLS can play an important role in supporting higher level abstractions of transport networks and for migration to T-SDN

OTS is an open approach & ESnet demo key 1st step towards realizing open, programmable transport networks.

Summary


www.infinera.com/go/sdn

Technology

Open Transport Switch and Transport SDN