Hi Mrinmoy, You are correct. There was a recent errata on RFC 8664 regarding this issue - https://www.rfc-editor.org/errata/eid6753
The authors of draft-ietf-pce-segment-routing-ipv6 should also fix this issue in their draft. Thanks for noticing it. Thanks! Dhruv On Fri, Jan 21, 2022 at 4:01 PM Mrinmoy Das <[email protected]> wrote: > Hello Team, > > I have a doubt regarding below section of the above draft: > > 4.3.1 > <https://datatracker.ietf.org/doc/html/draft-ietf-pce-segment-routing-ipv6-11#section-4.3.1>. > SRv6-ERO Subobject > > > NAI Type (NT): Indicates the type and format of the NAI contained in > the object body, if any is present. If the F bit is set to zero (see > below) then the NT field has no meaning and MUST be ignored by the > receiver. This document reuses NT types defined in [RFC8664 > <https://datatracker.ietf.org/doc/html/rfc8664>]: > > It seems above highlighted line indicates that if F bit is set to 0 then > NT field MUST be ignored > > by the receiver, whereas it should be completely opposite as per below > definition of F bit > > from the same draft: > > > F: When this bit is set to 1, the NAI value in the subobject body > is absent. The F bit MUST be set to 1 if NT=0, and otherwise MUST > be set to zero. The S and F bits MUST NOT both be set to 1. > > > So, I think the above highlighted line needs correction. As NT type refers > to RFC8664, I found > > the same mistakes over there as well. > > 4.3.1 <https://datatracker.ietf.org/doc/html/rfc8664#section-4.3.1>. SR-ERO > Subobject > > NAI Type (NT): Indicates the type and format of the NAI contained in > the object body, if any is present. If the F bit is set to zero > (see below), then the NT field has no meaning and MUST be ignored > by the receiver. This document describes the following NT values: > > Please let me know if you think differently. > > > Thanks, > Mrinmoy > _______________________________________________ > Pce mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/pce >
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