1. Networking Issues David Salmon UKERNA/GNT D.Salmon@ukerna.ac.uk

2. 7 February 2003NeSC visit2 AbMan ClydeNetEastMAN UHI YHMAN NORMAN Thames Valley South Wales SWERN LeNSE Kentish MAN LMN EMMAN EastNET LINX GEANT & USA NNW N.I. MAN MidMAN C&NL MAN North Wales SuperJANET4 architecture GlasgowEdinburgh Warrington Leeds Reading London Bristol Portsmouth

3. 7 February 2003NeSC visit3 Implementation backbone linking C-PoPs access links to regional networks (MANs)

4. 7 February 2003NeSC visit4 C-PoPs and BARs SDH ADM MAN Cisco 12008 or 12016 SDH ADM Backbone Access Link Cisco 12016 C-PoPBAR

5. 7 February 2003NeSC visit5 WarringtonLeeds London Reading SJ4 Development Network 2.5 Gbps Manchester (DL) RAL UCL MB-NG ULCC

6. 7 February 2003NeSC visit6 Bandwidth in the backbone requirements for 2003-2005? discussions within JCN 155 Mbps 2.5 Gbps 10 + (10) Gbps 1999 200120022003

7. 7 February 2003NeSC visit7 JANET’s External connections Global access 2 (3) * 2.5Gbps UK based transit to Global Internet – commodity traffic Bandwidth to Europe GÉANT — 2.5 Gbps Transatlantic bandwidth Recent history of Telco failures… Dedicated circuit gone now have transit via GÉANT

8. 7 February 2003NeSC visit8 JANET’s External connections

9. 7 February 2003NeSC visit9 GEANT Abilene national backbone regional network University LAN Dept. individual user NATIONAL REGION INSTITUTION Bandwidth delivery chain

10. 7 February 2003NeSC visit10 High bandwidth connections BAR C-PoP MAN Research Group charging: marginal costs (HE & Research only) E.g. Edinburgh & Glasgow connection for ScotGRID

11. 7 February 2003NeSC visit11 Intended for Industrial project partners UKERNA paper approved by JCN Policy for connection charges JANET connection costs Infrastructure – full cost Telecom link: installation & rental Routers/Switches & interfaces Access to JANET Contribution to JANET infrastructure ‘List’ prices up to 34Mb/s E-Science project connection costs

12. 7 February 2003NeSC visit12 C-PoP Options BAR MAN Research Group Pilot at Reading C-PoP Develop procedures & cost model Other selected C-PoPs later – (Leeds…) Backbone Router C-PoP Switch UKERNA Content Host 3 rd Party Equipment C-PoP

13. 7 February 2003NeSC visit13 Issues to think about Project requirements nature of traffic – volume, rate, real-time ? Implications for department/university LANs involve local support staff Regional connection: RN or direct ? discuss requirements with local RN operator Dedicated connection to industrial partners OK for collaborative work under JANET AUP Need for access to development network ? Funding sources for above

14. 7 February 2003NeSC visit14 GNT Applications Questionnaire Assess e-Science applications Network Requirements Network Impact Main points Application architecture Identify & Characterise the most-significant traffic-flows Scalability – more users, more sites… Process GNT & GSC Member/s visit projects Assist project to answer points above

15. 7 February 2003NeSC visit15 JANET Multicast Multicast to all RNs UKERNA Project plan Regional Networks survey Equipment & Topology 60-70% of RNs now “Multicast capable” i.e. – could deliver to sites if they request it Encouraging the rest to follow suit Documentation JANET Multicast Guide Operational Monitoring Beacons Eventual incorporation into production SLAs