[Secdispatch] Recapping Path Validation Work and Side Meeting

["Liuchunchi(Peter)" <[e-mail]>]

Hello SecDispatch,

In the last IETF 118 I shared work on Network Path Validation, which is to verify whether the forwarding path of a packet aligns with the predetermined control plane path. The path can be either an underlay path or a virtual path.

During the dispatch I mentioned there will be a Path Validation Side Meeting during the week, discussing problem statement, goals and interest. Roman invited for follow-up recap for outcomes, and here's a quick summary if you are interested.

Summary:
About 40 participants from 5 operators, 4 vendors and 4 research institutes joined the side meeting, agreeing the problem exists.
The main use cases that participants are interested in are: routing compliance (data transits within a jurisdiction or on top of a leased line only), securing service function chaining.
2 RTG ADs, Andrew and Jim, presented and are approved of the topic. They suggested a BoF.

Outcomes:

2 ADs sponsored the creation of the NASR Mailing List to continue the discussion. NASR stands for Network Attestation for Secure Routing. If you are interested, consider join and hear us out!

Next Steps:
We will be collecting and addressing the past feedbacks from the SM and SecDispatch, and narrow down the concrete scope and goals, for possible chartering.
Design and analysis on Proof-of-Transit mechanisms should be a first next step.

To Subscribe: https://www.ietf.org/mailman/listinfo/nasr
118 Side Meeting Materials: https://github.com/liuchunchi/path_validation_side_meeting_118

Best regards,
Peter (Chunchi) Liu