Dates: 14-15 October 2025
Format: 1,5 days
Location:
CSUC
Annexus building
C/ Gran Capità, no number
08034 Barcelona
The Annexus building is the basement of A1, but the access is from the Gran Capità street, not from the ground level at A1). Take the metro or the tram, stop at Zona Universitària and it's less than a 10 min walk. The path is totally accessible, including the metro station (there are elevators to the platforms and the street) and the A1 building (street level).
Take the ramps from GRan Capità street. This is the entrance of the building and what you will see from the Gran Capità street once you pass the Nexus I building (the round glass one):
Accommodation
CSUC is not in the city centre, but in Zona Universitària, where many faculties and schools are. Below you can find affordable hotels and residences in the vicinity of CSUC offices. There are also many other hotels in the city. So, if you prefer to stay in the city centre, you can still reach the office with public transportation quite easily. You can use the CSUCAH discount code with Atiram Hotels (8% discount).
This is a list of possible hotels and residences for your stay, sorted by the time you will spend to reach CSUC:
| Hotel | Distance to CSUC | Discount code |
| Hotel Madanis Liceo | 15 min by bus (26 min walk) | |
| Abba Garden | 16 min walk | |
| Arenas Atiram | 18 min walk | CSUCAH |
| Hotel Derby | 20 min by tram | |
| Catalonia Castellnou | 21 min by bus (27 min walk) | |
| Expo Hotel Barcelona | 23 min by metro | |
| Catalonia Barcelona 505 | 24 min by bus | |
| H10 Itaca | 24 min by metro | |
| Tres Torres Atiram | 26 min by bus (34 min walk) | CSUCAH |
| Catalonia Park Putxet | 29 min by bus | |
| Oriente Atiram | 28 min by metro | CSUCAH |
| Meson Castilla Atiram | 32 min by metro | CSUCAH |
| Residences | Distance to CSUC | |
| Barcelona Diagonal | 19 min walk (18 min by bus) | |
| Other student residences | It depends on the residence |
Getting to Barcelona from the airport Barcelona El Prat Josep Tarradellas
We recommend you fly to Barcelona El Prat Josep Tarradellas airport (BCN). Some applications show the airports of Reus and Girona as if they were Barcelona. They are not. They are far away and you can only reach Barcelona by bus from there. So, please, fly to BCN. There are two terminals: T1 and T2. If you need to take a bus, train or metro in the other terminal, there is a free shuttle bus between the two terminals every 5 minutes. Then, from the airport to the city, you can choose:
- Aerobus is a direct bus from the airport (T1/T2) to the city centre (aerobus). It cost 7,45 € per trip (12.85 € if you buy the return ticket).
- You can take bus number 46 from the airport (T1/T2) to Plaça Espanya. It costs 2,65 € per trip and you can buy a single ticket inside the bus (or 1,25 € if you buy a T-casual first). Please, be aware you can not buy a T-casual inside the bus, but you can buy at the metro station and then go to the bus if you want. Also, take into account you can pay in TMB buses directly with your bank card and no physical ticket will be needed in this case.
- Metro line 9 stops directly in Zona Universitària (where CSUC is). You need to pay a special fee to travel from the airport (Airport ticket). It costs 5,70 €.
- There is a train from the airport to Sants Estació and Passeig de Gràcia (only from T2). It costs 5.05 €.
- More information about public transportation from/to the airport here: https://www.ambmobilitat.cat/Principales/Aeropuerto.aspx
- You can take a taxi (there are well-signalled taxi stations there). Expect around 34/40 € from the airport to the city centre.
- Uber, Cabify, Mytaxi and other apps work quite well in Barcelona.
The most efficient way to travel with public transportation in Barcelona is to buy a T-Casual card in any metro machine for 12.55 € (+0,50 € carton rechargeable card), which includes 10 trips with the right to exchange between buses (except Aerobus), metro (except from/to the airport), train Zone 1 and tram during 75 minutes. If you are going to use more than 6 single tickets, is worth buying a T-casual. You can find all the possible tickets here: https://www.tmb.cat/en/barcelona-fares-metro-bus/. You will read you can only use the T-casual with the T-mobilitat and that you need to register, but the truth is that you can buy a carton rechargeable card per 0,50 €. You can also buy an "Hola Barcelona" card for 2 to 5 days, that includes Aureobus.
For single tickets (2,65 €): You can pay in TMB buses (reb buses, most of them) directly with your bank card and no physical ticket will be needed in this case. When you get on the bus through the first door, you will find a reader in front of the cab. It is the contactless bank card reader that allows you to buy and validate the single bus ticket in a single step, just by approaching the card. In some metro accesses, there is also a special validation machine that allows you to buy and validate a single ticket with a bank card. If this is not the case, you can use the machines to buy your ticket.
Practicalities
- The currency is the Euro (€).
- You can pay with credit card almost everywhere, including taxis.
- Power plugs are Type F ( CEE 7/4 and CEE 7/7 standards). The standard voltage is 230 V at a frequency of 50 Hz.
- Passport needed for countries out of Schengen area.
- We do not recommend to fly to Reus or Girona, as these two airports are far away from Barcelona.
- There is roaming available from most EC countries.
REGISTRATION LINK HERE
(both on-site and online participation is possible)
For any questions, please email nadelina.sandu@geant.org.
AGENDA (Times in CEST)
2nd14th of
AprilOctober
09: |
15 - |
09: |
30 |
| Arrival |
9: |
30 - |
09: |
45 | Welcome - |
Eduard Gil, Managing Director, CSUC | |
| Session 1 - Network Operations - Chair |
14:15 - 14:45
Network Security Scanning at CESNET - Jaroslav Svoboda, CESNET
Presentation
14:45 - 15:15
Flow analysis and monitoring detection - Carl Holt and Filip Cerny, Progress
Carl and his colleagues Filip and Ed have been working with GÉANT's SOC for over 10 years assisting with flow analysis and monitoring with tools such as flowmon. Carl will deliver a talk about the challenges they have overcome and how collaboration has delivered new tooling and expansion of existing tools.Presentation
Flash talks:
- CESNET NOC - Petr Hanousek, CESNET
Presentation - Unsampled Netflow generation at SWITCH - Alexander Gall, SWITCH
Presentation
Improving identification of R&E network traffic - Tim Chown, Jisc
The scientific network tags (Scitags) project is developing software tools to allow better identification of the owner (community) and purpose (activity) of science traffic by NRENs, other network operators and research communities. Scitags supports marking on a per-packet basis using the IPv6 flow label or per flow using parallel UDP “firefly” packets. The approach is already in use in CERN’s Worldwide Large Hadron Collider Computing Grid (WLCG) infrastructure, but is extensible to other projects and (non-science) communities.Presentation
Presentation
Experiences in DDoS events - Wim Biemolt, SURF
End of Day 1
Address: Lidická 337/30, 150 00 Praha 5-Smíchov, Czechia
| Mick O'Donovan | |
| 09:45 - 10:15 | The EuroHPC Network from the operations point of view, Keith Slater, GÉANT Now that the EuroHPC tender has been awarded, collaboration between GÉANT and the NRENs is crucial. Together, we are responsible for delivering, monitoring, and managing the EuroHPC network. Our operational focus is on ensuring seamless performance, including comprehensive incident management and reporting, to provide reliable access to this critical infrastructure for Europe’s scientific community. |
| 10:15 -10:45 | Maat, Tomasz Szewczyk, PCSS Maat is a Source of Truth application that ensures efficient management of infrastructure information in network service orchestration and automation systems. The approach used allows for easy definition of advanced resources and services and the creation of relationships between them. The application offers secure REST API, a nice UI, authentication and authorization features using the well-known open-source Identity and Access Management software Keycloak. |
| 10:45 - 11:15 | Coffee break |
| Session 2 - Communication Tools and Resilience - Chair: Ivana Golub | |
| 11:15 - 11:45 | Flash talks
|
| 11:45 - 12:45 | Exercise: Do we only rely on US Cloud tools or do we have a European alternative?, Jonny Lundin, SUNET |
| 12:45 - 13:45 | Lunch |
| Session 3 - Resilience Continuation and the NOC - Chair: Jože Hanc | |
| 13:45 - 14:00 | Recap from session 2 exercise, Jonny Lundin, SUNET |
| 14:00 - 14:30 | Flash talks - Configuration Management |
| 14:30 - 15:00 | Coffee break |
| Session 4 - Network Visualization and Data Sharing - Chair: Ivana Golub | |
| 15:00 - 15:45 | Flash talks
|
| 15:45 - 16:30 | Discussion: How much data would you like to see and share?, Ivana Golub, PCSS Research and education institutions participate in many multi-domain project that require a resilient end-to-end network. But, what happens when there is a problem and we can not see the whole path? Are we willing to share our data? And, if so, up to how many data would we share? Following the example from Metranova, we will see the possibilities we have, examples, etc. |
End of Day 1 | |
| 17:00 - 20:00 | Social activity: Cosmocaixa Science Museum |
| 20:00 | Group dinner: La Tagliatella |
15th of October
| 09:00 - 09:15 | Welcomes |
| Session |
|---|
| 5 - Network Automation and Orchestration, and Flow Monitoring - Chair: |
|---|
| Jonny Lundin |
|---|
9:15 - |
9:45 |
Presentation
Inside BSC's network: Connectivity and Marenostrum5, Maria Manco, BSC The network architecture of the Barcelona Supercomputing Center (BSC) must be robust, reliable, and secure, ensuring strong external connectivity and a well-defined security perimeter with advanced firewall protection. This infrastructure supports MareNostrum5, one of Europe’s leading supercomputers, which relies on a high-performance Ethernet network and a low-latency InfiniBand fabric to deliver the scalability and efficiency required for cutting-edge research. |
| 9 |
| :45 - 10: |
Crisis Management Exercise 2026 - Joze Hanc (ARNES) and Charlie van Genuchten (SURF)
The talk will give some details about the exercise that will take place in March 2026, where NRENs will be able to really test their crisis procedures in their own organisations, plus how they work together with NRENs in that crisis. The session will be also an way to get input from SIG-NOC on both the kind of scenario and the communication lines the exercise should try to trigger.Presentation
| 15 | Discussion: Flow Monitoring Tools, What do we use?, Joze Hanc, ARNES Following the discussions in the mailing list, this open debate will focus on the tools we use to visualise raw flows from the network. From open-source to commercial tools, there are dozens of tools out there. What are they pros and they cons? What are we missing? |
| 10:15 - 10:45 | WorkFlow Orchestrator in 2025, Mick O'Donovan, HEANET At the recent community hub sessions at TNC25 it was suggested to have a discussion on WFO and its use within the NREN community. Mick will present some updates on its use in HEAnet 2 years on from starting to use it as well as some updates from the inaugural Workflow Orchestrator Developer Days meet up in GÉANT's offices in Amsterdam in September. |
Flash Talks:
Presentation
Presentation
Mobile App Network trAffic Nutrition fActs (MANANA) - Giuseppe Aceto, UNINA
End-users of mobile applications hardly know which enterprises and countries are involved in their online activities, and the implied rights and risks. Researchers and regulators need actual usage data to verify data sovereignty compliance. MANANA aims at providing the former with understandable characterisations of infrastructure usage, and the latter with a monitoring system of actual mobile apps usage. The user will be enabled to choose among similar apps and report her data exposure (providing visibility to authorities). The app and the collection server will be released as open-source. MANANA is a project from the Università degli Studi di Napoli Federico II, funded by GÉANT's Innovation Programme.Presentation
| 10:45 - 11:15 | Coffee break |
| Session |
| 6 - More AI for Network Operations, Configuration Management and the NOC - Chair: |
| Maria Isabel Gandía |
| 11:15 - |
| 11: |
Open discussion - NOC on Cloud (Using M365 from an operational point of view) - Jonny Lundin, SUNET
What are the challenges of using the cloud for the NOCs? How far have we gone for network monitoring? What happens when the cloud does not work? These and other questions will be the seed for an open discussion with the aim to share information, ideas and expectations around the "NOCs on cloud".
GEANT's operational Experiences Using GAP (Automation system) to deploy services and new router platforms - Will Barber, GÉANT
This talk will give details on GEANT's experiences using GAP to migrate platforms and deploy services, including problems we faced, screen shots of the tool and how it will be used to push base config and update base config and add/delete services. The presentation| 45 | Reimagining Network Operations: Unified IP-Optical Automation with AIOps, Bruno de Troch, Nokia The growing complexity of IP and optical infrastructures requires a new operational paradigm. This session explores the evolution toward autonomous networks, enabled by Artificial Intelligence for Network Operations (AIOps) and advanced automation. AI-driven capabilities are transforming network operations, making processes more efficient, predictive, and resilient. A key focus is the convergence of IP and optical domains, where unified monitoring and joint operation drive higher efficiency and innovation. Breaking down silos between layers unlocks end-to-end visibility and streamlined management. The result is a strategic shift toward networks that are more intelligent, adaptive, and ready for the future. |
| 11:45 - 12:45 | Flash talks |
Presentation
| 12:45 - 13:00 | Meeting Evaluation and future topics, volunteers for next host |
| 13:00 - 14: |
| 00 |
| Lunch |