GARR-G: The Italian Universities
and Research Giganet
Mauro Campanella
INFN-GARR
[email protected]
GARR-B
IP
ATM
SDH
DWDM
IP Layer
ATM Layer
SDH Layer
Optical Layer
SDH Hardware
2
ATM Switches
IP Router
DWDM Hardware
M. Campanella - TNC 2001 - Antalya - May 2001
GARR-G Pilot Infrastructure
Netscalibur
Via Caldera 21, Milano
4 ms one way
UNI-Bologna,
Dip. Fisica/CNAF
V.le B.Pichat 6/2
Bologna
4 ms one way
Gb Ethernet
8 ms one way
T.I.
Wind
2.5 Gb/s links
UNI-Roma1
Dip.Fisica/INFN-Roma1
P.le Aldo Moro 2,
Roma
UNI-Fi
Via delle Gore 2
Firenze
Alcatel WDM 1690
Juniper M20
CISCO GSR 12016
RiverStone RS 8600
3
M. Campanella - TNC 2001 - Antalya - May 2001
GARR-G
SDH
ATM
IP
GbE
DWDM
Escon ...
Client Layer
IP, ATM, SDH, GbE, ...
Optical Layer
SDH Hardware
ATM Switches
4
IP Router
Optical Cross Connect
Optical Add and Drop Multiplexer
M. Campanella - TNC 2001 - Antalya - May 2001
Reasons
More capacity (factor of 20), new services
(QoS, IPv6,…), simplification, exploit fibers
Key elements
- GPoPs in users’ or neutral premise
- GPoP central to MANs and Regional
networks, high speed interconnects
- unitary model
- State cofinancing at 50%
- Ready for access to all student population
- Full support to european test activities
- Ready for mediterranean access
- data link agnostic (use of l, SDH, ATM, GbE )
5
M. Campanella - TNC 2001 - Antalya - May 2001
Items to follow closely
Although DWDM Gb speed in the backbone is a reality,
speed in the last mile might be slower:
- north better served than south
- larger cities cabled, not countries
LANs are slow to evolve and only a small percentage is
ready for QoS
Users’ site frequent misconfigurations
DWDM provider infrastructure is new
need to deal with multiple service providers and dark fibers
6
M. Campanella - TNC 2001 - Antalya - May 2001