Transport SDN

Ping Pan, Ph.D.

March 2013

SDN starts in Data Center Networks

Data Center

SwitchVM

VM

VLAN

VLAN

Data Center

SwitchVM

VM

VLAN

VLAN

WAN Transport

SwitchSwitch

Switch Switch

Switch

Metro

MetroSwitch

Switch

Switch

SDNController

Current Work – SDN Cloud Gateway

Data Center

SwitchVM

VM

VLAN

VLAN

Data Center

SwitchVM

VM

VLAN

VLAN

WAN Transport

SwitchSwitch

Switch Switch

Switch

Metro

MetroSwitch

Switch

Switch

SDNController

Transport SDN is on the Horizon

Data Center

SwitchVM

VM

VLAN

VLAN

Data Center

SwitchVM

VM

VLAN

VLAN

WAN Transport

SwitchSwitch

Switch Switch

Switch

Metro

MetroSwitch

Switch

SwitchSDN

Controller

SDN in Transport Network is NOT about…

OSMINE• A process to ensure compatibility at each vendor equipment level • Cannot keep up with technology advancement• No use in most of the networks

E-NNI• Standardized packet-circuit network interface• Introducing much operational overhead• Zero deployment!

Static Circuit Provisioning

• A traditional practice in circuit networks• Time consuming• Not compatible with IP applications

Transport SDN is about…

Network

Virtualization

Uniformed Interface over all Vendors

Control PlaneOverlay

Operate overMulti-LayerNetworks

Operation Simplicity

For Everyday Users

Here is the framework…

Overlay Network

Bandwidth on Demand

NetPlanning

Virtual Networking

Packet Infrastructure

Transport Infrastructure Wireless Infrastructure

Offer network services through overlay

Interface the network through virtualization

Open Transport Switch (OTS) is a light weight software switch installed on transport switches for network resource virtualization

Through OTS, the SDN Controller can provision, monitor and configure the underlying switches and networks

Support of Network Virtualization

SDN Controller

WDM/ OTN/

Packet

WDM/ OTN/

Packet

OTS OTS

Traffic Traffic

Applications

ESnet & Infinera SDN Demo: background

• Provide services to more than 40 DOE research sites, including the entire National Laboratory system, its supercomputing facilities

• Connect to 140 research and commercial networks, permitting scientists to collaborate with partners around the world

• Carry between 7 to 10 petabytes of data monthly, with traffic an average of 10 times every 4 years

SDN Demo Configuration

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

40G

100G

20G 20G

20G L1 Tunnel

SDN Controller communicating with Open Transport Switch (OTS) via OpenFlow extensions

Bandwidth on Demand application for Big Data transport

3 physical transport path options (with varying latencies)

Topology Monitoring App BW on Demand App

ESnet SDN Controller

Mellanox Mellanox

Path #1

Path #2

Path #3

OTS OTS

ESnet LIMAN Production Network

Brookhaven National LaboratoryTestbed

Setup an Edge-to-Edge Connection from Application

Manage Network Resources from Application

Transport SDN

OPERATION EFFICIENCY

• Optimal edge-to-edge connection setup• Multi-layer (L1/L2/L3) integration• Network planning and automation

NEW NETWORK SERVICES

• There is no end in demand of bandwidth• DC-based enterprise requires more VPN

EXPAND TO NEW3RD PARTY SERVICES

• Interface to virtual networking applications• Support of real-time Big Data services• Creation of virtual service providers