2. NNW Manchester St Pancras EastNet Cambridge EastNet Cambridge Warrington C-PoP 10G ULCC Amsterdam 10G Chicago 10G Leeds C-PoP Leeds C-PoP EastMAN Edinburgh Glasgow C-PoP NIMAN Belfast C&NLMAN Lancaster CLRC-RAL Reading C-PoP ClydeNET Glasgow Edinburgh C-PoP Edinburgh C-PoP YHMAN Leeds UKLight Phases 1 & 2, 3 MidMAN Birmingham To CERN To FNAL

3. Based upon 10 Gbit/s core Presents Ethernet at exit points: - Many 100 Mbit/s for long periods times - Few 1 Gbit/s for long periods -in practice pseudo-persistent for now -Cross bridges when (if) we come to them - If needed, and for shorter periods, access to full 10 Gbit/s possible

4. HEP Connectivity Requests

5. Service Challenge Connection Requests

6. ESLEA Collaboration Connection Requests

7. Other Connection Requests

8. HEP Provision Tier1 Tier0 Today: 2 x 1 Gbit/s in place for RAL CERN Switched through Amsterdam 500(290) Mbit/s RAL Lancaster 1-Jan 2006 6 x 1 Gbit/s Feb 2007 Requested 10 Gbit/s

9. HEP Provision Fermilab UCL 1 Gbit/s for foreseeable future

10. HEP Provision Tier1 Tier2 and Tier2 to elsewhere Today we have said to UKERNA: ~ 1 Gbit/s between WITHIN a Tier-2 (i.e. between Tier-2 Institutes) ~ 1 Gbit/s aggregate from EACH Tier2 to Tier1 (note: this means 4 Gbit/s into RAL !!!) Next (up to 2007): Consolidate existing differentiated Tier2 estimations by Roget Jones & Barney Garret to revisit existing papers Visit Tier2 sites Visit experiment reps Default is that Tier2 uses production network for now until ~2007 If clear case for dedicated connections for a Tier2 before end 2006 then we WILL ask for it. BUT to do this is will be essential that someone at Tier2 GUARANTEES to use the connection we cannot ask and not use. We cannot do this just based upon generalities Post 2007 – see next slide

11. SuperJANET5 and Geant-2 Geant-2 Already committed to provided dedicated capacity across GN2 NRENS will be offered a 10+10 Service (10 IP + 10 GE) They plan to do this for Tier1 to CERN SuperJANET5: Will be fully live by end 2006 Will incorporate pervasive dedicated circuits Who pays ? work ongoing ? Messages for UK sites: Dedicated circuits can be provided If your site thinks it needs one we should ask for it – but only if you know you will use it We must present authoritative documents to UKERNA in advance of SJ5 as and when we know what we need.