1. an overlay network with added resources
NORDUnet
LHCONE
an overlay network with added resources
NTW2013

2. LHC data storage and computation. Tier-0 Cern
Tier-1 11 sites around the world, uses LHCOPN
Tier sites
mostly universities and other scientific institutes. Using their normal upstream and FW
Large data stream flows between Tier-1 and Tier-2 sites aswell as between Tier-2 sites.
Large and small sites. cpu and storage
Lack Network capacity

3. Internet2 NORDUnet NREN NREN Esnet Geant NREN NREN FW University
Institution
University
Institution FW
University
Institution
Problem
Tier-2 inside the university
Share FW with poor capacity
Standard uplink
Bursty traffic on the transatlantic links.
University
Institution
Tier-2
Tier-2

4. LHCONE Internet2 NORDUnet NREN NREN Esnet Geant NREN NREN FW
University
Institution
University
Institution FW
University
Institution
LHC Open Network Environment
Create a network only for LHC site.
Removing FW as LHC traffic would pass the firewall anyway
Builds on trust
Only prefixes used for LHC are allowed
Dedicate link to the tier-2 site or via the normal uplink
Layer 2 misttake
University
Institution
Tier-2
Tier-2

5. LHCONE Internet2 NORDUnet NREN NREN Esnet Geant NREN NREN FW
University
Institution
University
Institution FW
University
Institution
A few of the Tier-2/1 site asked for dedicated capacity between US and Europe
Implemented as a layer 3 vpn in each domain, using the normal backbone capacity.
Normal BGP between domains. Dedicated or shared links.
University
Institution
Tier-2
Tier-2

6. 249 routes 48 AS Gets a bit complicated when you show all the links.
Pic: Mian Usman

7. NDGF traffik to LHCONE

8. The end