A Possible New Dawn for the Future
GÉANT Network Architecture
Tony Breach, NORDUnet A/S
GN3 JRA1 Future Network
Vilnius, Lithuania
31 May - 3 June 2010
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Introduction
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JRA1 T1 Status: Carrier Class
Transport Network Technologies
Layer 2 routing
Ethernet over MPLS
Ethernet
MPLS-TP
PBB-TE
NG-OTN
Control Plane (GMPLS)
Deliverable DJ1.1.1
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CCTNT
Synchronous Ethernet
Carrier Class Transport Network Technologies
Next step:
Further study and testing
- OAM.
- Protection & Restoration.
- Multi-domain implications.
- Cost-effectiveness.
Comprehensive study and
demonstration
NG-IP
NG-OTN
Control Plane (GMPLS)
JRA1 T2 Status: Photonic Switching
& Experimental Photonic Facilities
Next Step
ROADM
Data
Centre
WSS
PIC
100G
Impairment aware Control Plane
Optical Components
Optical amplification
Optical add/drop
Photonic fiber switches
Wavelength channel spectrum
Optical Packet and Burst Switches
Forward Error Correction (FEC)
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All Optical 10+
years if ever!
Data
Centre
Validate results
through practical
tests.
JRA1 T3 Status: Federated Network
Architecture
Base Model – The building blocks
Model A: Simple architecture
End user Service Layer
Model B: Complex architecture
Service A
Federated Network Architecture
Provide by end users
Next step:
Model A & B Prof of Concept
Service Layer
NREN 1
Intra-federated
Intra-federated
Service A
NREN 5
CPE
Operation Layer
Intra-federated
Service A
Federated
Operation
NREN 7
NREN 1
Intra-federated
Tool A
Intra-federated
NREN 6
Intra-federated
Intra-federated
NOC A
X
Operation Center
CPE
X
Infrastructure Layer
X
NREN 4
NE
Network Element
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X
X
X
NREN 5
X
NREN 7
Status: JRA1 T4 - Current and
Potential uses of Virtualisation
JRAs
SAs
NAs
AutoBahn
Phosphorus
Requirement
Analysis
Manticore
AKARI
Implementation
(Integration)
Design and
planning
Federica
4WARD
Proof of Concept and Prototype Integrated virtualisation approach
JRA1
T4
Study and
analysis
Deliverable
DJ1.4.1
GENI
Virtualisation Services and
Framework Study
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NEXT Step
Deliverable
DJ1.4.2
Virtualisation Services and Framework
incl. PoC and Prototype studies
Current Common Network
Technologies
Cost
Power
Technologies of Today
IP
MPLS
Ethernet
SDH
OTN
DWDM
Photonics
SOLUTION - Process traffic at the lowest possible layer
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Current Common Network Architecture
Network Infrastructures
X
X
X
X
X
X
X
X
X
X
Manpower
NMS
“CLI”
IP
Department
Communication
C
A
X
X
IP
X
X
X
X
X
NMS
X
X
X
X
X
X
NMS
“GUI”
PKT/
TDM
Transmission
Department
NMS
“GUI”
WDM
Fragmentet Network Architecture
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Wasting ressources
B
Current Common Multi Domain
Network Architecture
Client I/O Back to Back
Virtual Circuits
X
X
Domain 1
ODF
Domain 2
Passive Local access
Change = Truck roll
Fiber
Patch
RFS = 12 to 16 Weeks
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Optical Transport Network (OTN)
The advantages of OTN
compared to SDH
IP
Ethernet
The next big
thing
SDH
Optical Channel Layer
Optical Multiplex Section Layer
Optical Transmission Section Layer
Physical Medium - Fibre
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OTN
Transparent Client Signals
Better Forward Error
Correction
Better scalability
Increased number of
Tandem Connection
Monitoring points
Next Generation OTN
?
Digital
Ethernet
SDH
Fibre
Channel
PKT
OTN
X
X
 and sub- networking
Analogue
ESCON


Single Converged
Transport System
Coarse granularity
WDM
X

Switching

Grooming
Well-suited to backbone environments
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Multiplexing
Transparent pass through
The New Dawn of Network
Architectures
X
X
X
X
PoP A
X
X
X
PoP B
NMS
X
X
GMPLS
NMS
IP/OTN/WDM
IP/PKT/WDM
IP/PKT off
Loading
Metro/Regional
0 Gbps – 10 Gbps
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Dynamic Adaptive Switching
X
100% Packet
Peering
IPT
Core Backbone
1Gbps – 100Gbps
100% Circuit
The New Dawn of network
architectures - Federation
NREN 1
Federated Network Architecture Example
X
X
OTN Switch
NREN 5
Federated
Operation
CPE
NREN 7
NREN 1
IP (P) Router
NREN 6
X
X
IP Peering
CPE
X
X
NREN 4
X
X
NREN 5
X
NREN 7
IP Transit
 Interconnections provided by individual domains e.g. wavelength or sub waves
 Demarcation Nodes (OTN and IP) provided by Virtual operator
 NOC handled by the Virtual operator
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Summary
OTN for Multi-Domain Interconnection
IP intelligence to the edge
Centralized IP Core
(IP-T and Peering)
IP Off Loading
CCTNT for Metro and
access networks
DWDM Mesh Base Layer
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Use Federation where
it make sense
OTN Based Transport Layer
Vertical Control Plane
Integration
Uniform Network Architecture will not fit all
Thank you
Questions...
Presentation can be found at:
http://tnc2010.terena.org/schedule/presentations/show.php?pres_id=38
Report “The New Dawn of Network Architecture” can be found at:
http://tnc2010.terena.org/schedule/presentations/show.php?pres_id=38
and here:
www.geant.net/Media_Centre/Media_Library/Pages/Deliverables.aspx
JRA1 Deliverables can be found at:
www.geant.net/Media_Centre/Media_Library/Pages/Deliverables.aspx
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