G-WiN - the future Gbit/s Infrastructure for the German Scientific Community

1
G-WiN - the future Gbit/s Infrastructure for the
German Scientific Community

• Gertraud Hoffmann, DFN-GS
• URAN Workshop Kiev
• 29.09.-3.10.1999

2
Contents

• Current Network B-WiN
• Reasons for a new Gbit/s-Network
• Traffic Analysis
• Technology
• The Procurement
• Future G-WiN-Services
• G-WiN Characteristics

3
(No Transcript)
4
Breitband-Wissenschaftsnetz
(B-WiN)
34 Mbit/s
155 Mbit/s
5
Reasons for a New Gbit/s-Network

• Growing quantitative demands
• national connectivity
• traditional applications
• new applications
• distribution of intl. Traffic
• Growing qualitative demands
• flexible bandwidth assignment
• CoS / QoS Requirements
• Changes on the bandwidth market

6
(No Transcript)
7
Traffic Analysis (1)
8
Traffic Analysis (2)

• Growing traditional traffic (factor 2.2 pa)
• Multimedia factor 3-5 on monthly averages
• consequence 1 number of high-speed accesses will
  grow over the years (technical perspective)
• consequence 2 backbone has to be dimensioned
  according to the needs with only financial
  restrictions

9
G-WiN Technology (1)

• SDH /WDM platform for IP traffic
• Point-to-Point service (flexible bandwidth
  provision)
• 60 34 Mbit/s point-to-point available and
  switchable at any time
• ATM Service (flexible bandwidth and QoS
  provision)
• within backbone flexible shifts of bandwidth
  according to changing user demands

10
Technology (2)
G-WiN Backbone
Customer Router / ATM Switch
Backbone Node (29)
11
Future G-WiN-Services

• Services Capacity (in Mbit/s)
• Internet 0.128, 2, 34, 155, 622, 2400
• Point-to-Point 2, 34
• ATM 2, 34
• CoS / QoS
• urgent need for a lot of applications
• needs definition and organisational concepts for
  implementation

12
The Procurement

• European Tendering for
• winner
• backbone Deutsche Telekom
• access lines miscellaneous
• router CISCO
• transatlantic connectivity still open

13
G-WiN Characteristics (1) Demand Forecast of
access ports
14
G-WiN Characteristics (2)Throughput main traffic
hour
15
G-WiN Characteristics (3) Number of Backbone
Interfaces
16
G-WiN Characteristics (4)Cost Diagram
17
G-WiN Characteristics (5)

• appropriate platform for traffic growth and for
  new user applications
• Implementation of latest available technology
  (SDH / WDM, later end-to-end WDM)
• appropriate cost/bandwidth curve on the ntl.
  scale, later (hopefully) Europe and US
• available Q1 2000