LHCOPN-LHCONE meeting #55 - Karlsruhe DE

7 Oct 2025, 13:00 → 9 Oct 2025, 14:00 Europe/Berlin

Edoardo Martelli (CERN)

The meeting will be in person, with the possibility to join remotely.

Venue: KIT

LHC[OPN/ONE] and SIG-NGN meeting will be at KIT-"Campus North" (KIT-CN), building 449, room 140.

 

Travel Information

 

By Plane

The closest international airports are Frankfurt, Stuttgart or Karlsruhe/Baden-Baden (Baden-Airpark). Further details can be found at: https://www.kit.edu/kit/english/arrival_plane.php .

By Train and Public Transportation

The Deutsche Bahn timetable provides detailed information on connections.

 

KIT-CN is located north of Karlsruhe. Public transport is possible. You take S1 or S11 direction Hochstetten (or Linkenheim-Hochstetten) and exit Eggenstein-Leopoldshafen, Frankfurter Straße (appr. 30 min ride). From there you take bus no 195 towards Blankenloch and exit KIT Campus North, Suedtor. At the reception there you obtain you entry pass.

All departure times can be found at Karlsruhe public transportation system. Reliable information about public transport in Karlsruhe is also available on Google Maps.

However, bus-transport from the City Center to KIT-CN will be organized. 

Bus departure at Karlsruhe Leonardo hotel parking lot:

	Leonardo Hotel departure
O7.10.	11:00
08.10.	07:30
09.10.	08:00
09.10.	12:00
10.10	07:30

--

We strongly recommend all participants look for accommodation through the usual providers such as Booking.com.

A list of hotels can also be found on the following website: https://www.karlsruhe-erleben.de/en/uebernachten

Please book your hotel quite soon, since during the week in October is a big exhibition at Karlsruhe and hotels are filling up fast. 
Here is a list of hotels:

Novotel : -->150 to 190 Euro/night

Leonardo: --> 125,-- to 195,-- Euro/night

Motel ONE: --> 125,-- to 170,-- Euro/night

Ibis: 110,-- to 155,-- Euro/night

Premier Inn Karlsruhe City Am Wasserturm Hotel ca. 200.-- Euro/night

Schlosshotel: 150,-- to 200,-- Euro/night

Avisa: 100,-- Euro/night

 

All these hotels are rather close to each other, so there is no problem to meet after the programm.

 

Tuesday 7 October

13:00 → 13:10 Welcome and Introduction

13:10 → 13:30 KTT/SCC centre welcome

Speaker: Achim Streit (KIT - Karlsruhe Institute of Technology (DE))

13:30 → 14:30 LHCOPN

13:30 LHCOPN update

Speaker: Edoardo Martelli (CERN)

13:45 Remaining IPv4 traffic analysis

Speaker: Dale Carder

14:05 Porposal for an IPv6 only LHCOPN

Speaker: David Kelsey (Science and Technology Facilities Council STFC (GB))

14:30 → 15:00 Coffee break

15:00 → 17:00 LHCONE updates

15:00 LHCONE L3VPN update

15:20 Monitoring update

15:40 NL-T1 and SURF update

Speaker: Arno Bakker

16:00 DE-KIT network update

Speaker: Aurelie Reymund

16:20 ESnet update and US mini-challanges results

Speaker: Mrs Kate Robinson (ESnet)

16:40 LHCONE unrouteable packets

Speaker: Bruno Heinrich Hoeft

19:00 → 21:00 Social Dinner

Time and location: 19:00 at Lehners Wirtshaus Karlsruhe,
Karlstraße 21a, 76133 Karlsruhe
URL: https://karlsruhe.lehners-wirtshaus.de/
Google-map: https://maps.app.goo.gl/akpZAABjYbqena8G6

Wednesday 8 October

09:00 → 09:30 LHCONE updates

09:00 Report from ATCF9

09:30 → 12:00 LHCONE development

09:30 LHCONE AUP review

Speakers: Bruno Heinrich Hoeft, Dale Carder

twiki: LHCONE AUP

10:10 Host Tuning Campaign for HL-LHC

Speaker: Eli Dart

10:30 Coffee break

11:00 Update of LHCONE BGP communities to support 32bit ASNs

These communities need to be updated:
https://twiki.cern.ch/twiki/bin/view/LHCONE/LhcOneVRF#BGP_communities

Speaker: Dale Carder

11:20 Performant Perimeter Security for HL-LHC

Speaker: Eli Dart

11:40 MultiONE update

Speaker: Edoardo Martelli (CERN)

Twiki: community definitions

12:00 → 13:30 Lunch

13:30 → 14:00 LHCONE development

14:00 → 16:40 Network Research Technologies working group

14:00 Network Research Technology WG update

14:30 How to implement ATLAS caches in LHCONE?

remote speaker, keep it at 14:30 UTC+2

Speaker: Ilija Vukotic (University of Chicago (US))

15:00 Coffee break

16:40 → 17:00 Next meeting - Wrap up

Thursday 9 October

09:30 → 12:00 Visits of KIT's laboratories and projects

12:00 → 13:00 Lunch break

13:00 → 14:00 GEANT SIG-NGN + SIG-AI meeting

The GEANT SIG Next Generation Network face-to-face meeting is co-hosted with the LHCONE meeting and takes place at KIT on Thursday afternoon and Friday morning
https://wiki.geant.org/display/SIGNGN/16th+SIG-NGN+Meeting%2C+in+collaboration+with+SIG-AI