Hi all,


I’ve been going through the FANTEL problem statement and I had a few
questions and thoughts about the security considerations that I wanted to
flag with the group.


I was curious about the trust boundary around subscriptions. Since the
document introduces the idea of recipient nodes “subscribing” to specific
classes of notifications, are there expectations for how implementations
authenticate and authorize subscribers? Could an attacker register for a
large number of subscription categories (or register repeatedly) and
consume resources or gain access to detailed information that might
otherwise not be visible?


I also didn’t see much discussion of authorization for “who is allowed to
send what.” It seems important to ensure that only the correct devices are
permitted to originate certain types of events otherwise a compromised or
misconfigured node might try to influence traffic behaviour outside of its
intended scope. What is the intent for authorization?


Finally, the document acknowledges that FANTEL may expose sensitive
operational data. Could the document include text around confidentiality
expectations? For example, could it discuss scenarios where the
notification payloads must be encrypted?


I am interested in hearing how others are thinking about these aspects. If
any of this is already being addressed in companion drafts, feel free to
point me in that direction.


Thank you,

Dan.

On Fri, Jan 16, 2026 at 6:12 AM Yingzhen Qu via Datatracker <
[email protected]> wrote:

> This message starts a rtgwg WG Call for Adoption of:
> draft-dong-fantel-problem-statement-03
>
> This Working Group Call for Adoption ends on 2026-01-30
>
> Abstract:
>    Modern networks require adaptive traffic manipulation including
>    Traffic Engineering (TE), load balancing, flow control, and
>    protection, to support high-throughput, low-latency, and lossless
>    applications such as Artificial Intelligence (AI) /Machine Learning
>    (ML) training and real-time services.  A good and timely
>    understanding of network operational status, such as congestion and
>    failures, can help to improve network utilization, enable the
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>    to critical events.  This document describes the existing problems
>    and why a new set of fast network notification solutions are needed.
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