Green Path Connectionin Multi-Layer Transport

Network

2011.7.20Eunyoung Cho*, Sunme Kim, Wonkyung Lee,

Hoyoung Song, Jehoon Yoo, Taewhan Yoo, Jonghyun Lee

Optical Internet DepartmentETRI, KOREA

ICWES15 ETRI

2/10

Contents

Packet-Optical Integrated Network Transport Switch

GMPLS-based Multi-Layer Path Computation

Architecture for Green Path Computation– Network Planning Tool (NPT)

– Network Management System (NMS)

– Multi-Layer Resource Information

– Path Computation Engine (PCE)

– Virtual Network Topology Manager (VNTM)

– Management Plane and Control Plane Components

– Multi-Layer Aggregation Path Inference Engine (MAGPIE)

POINTS Testbed

ConclusionICWES15

ICWES15 3/10

Packet-Optical Integrated Network Transport Switch

Multi-Layer Integrated Switching Technology including IP Flow, L2 Label, L1 VC, L0 Lambda– cut-through path consistent with the existing backbone routing

– L0/L1/L2/L3 Integrated and Dynamic Provision though MONCP (Multi-Layer Optical Network Control Platform)

– Integration with Premium IP Service and VPN

– Reduce Opex/Capex through Simplified Aggregation

– Highly reliable and guaranteed Path

Multi-Layer Integrated Switching Technology including IP Flow, L2 Label, L1 VC, L0 Lambda– cut-through path consistent with the existing backbone routing

– L0/L1/L2/L3 Integrated and Dynamic Provision though MONCP (Multi-Layer Optical Network Control Platform)

– Integration with Premium IP Service and VPN

– Reduce Opex/Capex through Simplified Aggregation

– Highly reliable and guaranteed Path

IP/MPLS

PSTN

High speed Internet

VOD

Live IP-TV

VoIP

VPN

FTTH

Business

ResidentialVoice

Live IPTV

WiBro SDH/OTH

Storage L.L/VPN

OLT

Mobile

Best Effort

POINTSRT

DWDM

POINTSEdge

POINTSCore

Service platform

3G CoreNetwork

IP flow-awarePacket Transport

Native POTSFunctionality Cut-through PathCut-through Path

Unified Multi-LayerControl & Management

Core NetworkCore NetworkMetro NetworkMetro NetworkAccess NetworkAccess Network

Multi-LayerOptical NetworkControl Platform (MONCP)

- Resource Management (Optical/Packet)

- One Click Provisioning- GMPLS Interworking

Voice

Video P2P

HTTP

PTL 1 Flow(s)

OTH

WD

M

w/

RO

AD

M

PTL 2

PTL 3

4/10

OTL/PTLPOINTS 4

#3

LMP

RSVP-TE

OSPF-TE

OTL/PTLPOINTS 2

#2

LMP

RSVP-TE

OSPF-TE

OTL/PTLPOINTS 1

#1

LMP

RSVP-TE

OSPF-TE

OTL/PTLPOINTS 3

#4

LMP

RSVP-TE

OSPF-TE

PATH

RESV

PATH

RESV

Link StateAdvertisement

Link StateAdvertisement

NeighborDiscovery

NeighborDiscovery

OTL Working/Protection PathIngress node: 1, Egress node: 3

Link StateAdvertisement

Link StateAdvertisement

PTL Working/Protection PathIngress node: 1, Egress node:3

NeighborDiscoveryNeighbor

Discovery

LSDB

LSDBLSDBLSDB

OTL/PTL Resource Reservation Signaling

OSPF Routing DB

setup

OTL/PTL Link ResourceLMP Neighbor setup

PCEreq/rsp

GMPLS-based Multi-Layer Path ComputationGMPLS: Generalized Multi-Protocol Label Switching RSVP-TE: Resource Reservation Protocol-Traffic Engineering, IETF RFC 3477OSPF-TE: Open Shortest Path First-Traffic Engineering, IETF RFC 3630LMP: Link Management Protocol, IETF RFC 4204

ICWES15

5/10

Multi-Layer Path Computation Parameters

Multi-Layer Protocol Path Computation Parameters

GMPLS based Packet/Optical

Transport Layer 

- Bandwidth

- Affinities, Link, Node inclusion/exclusion

- Shared Risk Link Group inclusion/exclusion

- Maximum e2e IGP metric

- Maximum hop count

- Maximum e2e TE metric

- Degree of paths disjointness

- Energy Efficiency and port/slot/shelf locality

- Switching/Encoding type

- Link protection type

ICWES15

6/10

MAGPIE: Multi-Layer Aggregation Path Inference Engine

PCE

POINTSPOINTS

NMS: Network Management System NPT: Network Planning ToolPCE: Path Computation Element VNTM: Virtual Network Topology ManagerPTL: Packet Transport Layer, OTL: Optical Transport LayerTE: Traffic Engineering, SLA: Service Level Agreement, LSDB: Link State Database MAGPIE: Multi-Layer Aggregation Path Inference EnginePOINTS: Packet-Optical Integrated Transport Switch

Control Plane

RSVP-TE

OSPF-TE

LMP

ManagementPlane

PTLData Plane

OTLData Plane

VNTMPCENMS

NPT Discovered Topology,Multi-Layer LSDB,

TE constraints, SLA

MAGPIE

ICWES15

* Solutions- Power consumption in ports/line cards/chassis in IP/Packet/Optical layer- ASIC- Smart cooling technology- Center office Restructuring - Ring vs. Mesh topology- High bandwidth utilization in ASON- Forwarding engine >> switching fabric, control plane S/W

* Related work - EER algorithm and its performance- Energy per bit (BW, loss, etc)- Tolly Group Report- Fuzzy Controlled RWA - Power saving network:

dynamic link/port-based power on/off

7/10

Path Correspondence in Multi-Layer Network

ICWES15

8/10

POINTS Testbed

ICWES15

9/10

Automatic Label Switched Path Setup

Path

Resv

Path

Resv Path

Resv

AutomaticSwitched

Path Setup

Analyzer

Analyzer

ICWES15

10/10

Conclusion

Architectural Components of Multi-Layer Network

Flexible Components for Green Path Computation

PCE Integration in PBB-TE/MPLS-TP/ROADM Transport Technology Network

World Leading Prototype of Packet/Optical Integrated Network Transport System

5 seconds Soft-Permanent/Permanent Connection Services in Transport Network through GMPLS-based Control Plane and Management Plane Functions (days hours)

Future Work: Deployment in KOREN from Aug. 2011,

Interoperability Test,

Yeosu Expo by co-working company ICWES15