Session Date/Time: 18 Mar 2025 10:00

panrg

Summary

This PanRG meeting at IETF 122 in Bangkok covered updates on the SCION deployment and draft status, a presentation on quick network awareness technology, and a presentation on a deadline-aware multipath transport protocol (DMTP). The meeting also included a brief discussion about a potential collaboration with the Quantum Internet Research Group (QIRG).

Key Discussion Points

SCION Deployment and Draft Updates (Niccolo):
- SCION is seeing success in finance and critical infrastructure ecosystems.
- The core SCION drafts are under ISE review, and feedback has been received, particularly on the control plane.
- Researchers are exploring deploying SCION closer to applications and investigating post-quantum cryptography for SCION.
Quick Network Awareness Technology (Gauching):
- Presented a draft introducing path awareness into the transport or application layer via the quick egg mechanism.
- The draft proposes a new quick frame format to carry network status information, such as available bandwidth and path delay.
- Discussion highlighted the similarities and differences with the Scone Working Group's work and the importance of defining specific use cases and semantics for the feedback.
Deadline-Aware Multipath Transport Protocol (DMTP) (Tony John):
- Presented DMTP, a protocol designed to meet strict latency requirements for real-time applications using SCION's path awareness.
- DMTP uses optimal path selection, smart retransmission, and adaptive forward error correction.
- Experiments showed DMTP maintaining consistent performance even at high loss rates compared to MPTCP and multipath quick.
- Ongoing work includes standardization through a draft for quick multipath DMTP.
- MP Quick group providing feedback to ensure collaboration on multipath solutions

Decisions and Action Items

SCION Draft Reviews: Interested individuals with long flights are encouraged to review the SCION drafts and provide feedback, potentially by pinging the ISE beforehand.
DMTP POC Release: The DMTP developers are encouraged to share their proof-of-concept code with the PANRG mailing list for experimentation and interoperability testing.
QIRG Collaboration: Chairs to coordinate discussions between PanRG, Datnet, and QIRG regarding potential areas of collaboration and knowledge sharing.
DMTP & MP Quick Interaction: Encourage DMTP team to continue collaboration with MP Quick to integrate solutions. Also encourage DMTP Team to bring fairness considerations to the CCRG.

Next Steps

Niccolo to provide the ISE with updates on any incoming reviews of the SCION drafts.
Gauching to focus on defining specific use cases and semantics for the quick network awareness technology based on community feedback.
Tony John to continue revising the DMTP draft, incorporating feedback from the quick working group and progressing towards a prototype implementation.
Chairs to facilitate discussions on DMTP's fairness considerations within the CCRG.
Chairs to entangle the mailing lists of PANRG, Datnet, and QIRG to start the collaboration discussion.