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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