Optical Edge / Access Networks for GENI

Lokesh Mandvekarlsm5@cse.buffalo.edu

Dr. Chunming Qiao (PI)qiao@computer.org

Department of Computer Science and EngineeringUniversity at Buffalo (SUNY)

AGENDAOBJECTIVES

PASSIVE OPTICAL NETWORKS

ADVANTAGES OF PON / GENI CONTRIBUTION

EXISTING FACILITIES

PROJECT MAPS

DELIVERABLES

INTEGRATED OPTICAL/WIRELESS ACCESS

ACKNOWLEDGMENT

OBJECTIVES

Building a campus / metro wide optical access network using PON technologies

GENI compatible hardware and software (programmability, virtualization support, scalability, etc.)

Interface with a GENI control framework

VLAN connections to Internet2 / NLR via NYSERNet

PASSIVE OPTICAL NETWORKSA PON consists of a single shared optical fiber providing access to multiple subscribers via optical splitters

Typically, a tree architecture with 1 OLT(Optical Line Termination) serving multiple ONUs(Optical Networking Unit)

No active components in the network except at the endpoints

ADVANTAGES OF PON & GENI CONTRIBUTION

High speed access, low bit error ratio, low cost, low maintenance

End-to-end protocol and coding format transparency

Better virtualization support at the physical layer (with WDM / OFDMA)

EXISTING FACILITIESBasic infrastructure already in place – UB owns an extensive fiber network laid over Buffalo area

ONUs to be setup at research centers requiring high bandwidth connectivity and heavy computation

Fibers in Black Property of

University at Buffalo

UB North Campus

UB South Campus

UB Downtown Campus

DELIVERABLES Initially, a whitepaper describing

• Software and hardware architecture of the PON testbed

• Requirements and feasibility

• Expected functionality, time and cost

• GENI users and applications

INTEGRATED FIBER/WIRELESS ACCESS

Future plans to integrate optical and wireless access to facilitate advanced wireless experiments related to

• WiMAX or other AP/BS technologies

• Wireless Mesh Networks

• Disruptive 4G cellular with distributed MIMO

High Level Functional ArchitectureHigh Level Functional Architecture

Programmable Router

AN-4

Edge Node

Passive Coupler

20-100Km

GENI backbone Interface

Optical OFDM over WDM

AN-3

AN-2

AN-1Slice A (e.g., EPON)

Distributed MIMO

Opt-in User Groups

Servers

Internet

Remote access

OLT: Optical Line Terminal WLT: Wireless Line TerminalNC&M: Network Control & Management AN-n: Access Node nBS: Base Station

WiMAX BS1

WiMAX BS2

Switch

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eGENI NC&M

GENI backbone

ACKNOWLEDGMENTWe acknowledge the support fromWe acknowledge the support from

• NEC Labs of America

• UB CIT

• and others who have provided useful discussions

THANK YOU