[icnrg] IRSG review of draft-irtf-icnrg-pathsteering

["Brian Trammell (IETF)" <[e-mail]>]

Greetings,

I’ve reviewed draft-irtf-icnrg-pathsteering for the IRSG.

IMO this document is ready for an IRSG ballot, with nits.

It describes a fairly straightforward way to add path awareness to (path-symmetric) CCNx (as an example of ICN approaches). It has somewhat less stringent security properties than other approaches in the path-aware networking space (e.g. SCION), but this seems perfectly reasonable in the ICN space. 

This document could be seen as “glue” between ICNRG and PANRG (note: I’m saying this with my PANRG chair hat off). At the risk of making an obligatory “you didn’t cite the reviewer” comment, which you can feel free to ignore, the document clearly answers the second and third questions (path discovery and selection, here called “steering”) posed by RFC 9217 (“Current Open Questions in Path-Aware Networking”) in an ICN context. I find it interesting that no mention was made of the first question (i.e., which properties of a path would a consumer use to make a decision about which paths to use?), aside from a mention in the abstract of potential uses. Given that the document essentially shows how to implement an externally specified design within CCNx, this is possibly reasonable, but might be worth addressing.

I have one editorial nit:

typo “in roder that the forwarders use that path” -> “in order”

Thanks, cheers,

Brian