Re: [RTG-DIR] [Lsr] RtgDir review: draft-ietf-ospf-ospfv3-segment-routing-extensions-17.txt

[Erik Auerswald <[e-mail]>]

Hi Peter,

please see inline (I have kept just the relevant part):

On Wed, Nov 14, 2018 at 02:13:37PM +0100, Peter Psenak wrote:
> On 14/11/18 12:49 , Tomonori Takeda wrote:
> > [...]
> > 1) Flooding Scope of SR-Algorithm TLV
> > In Section 4.1, it says:
> > 
> >    "If the SR-Algorithm TLV appears in
> >     multiple OSPFv3 Router Information Opaque LSAs that have different
> >     flooding scopes, the SR-Algorithm TLV in the OSPFv3 Router
> >     Information Opaque LSA with the area-scoped flooding scope MUST be
> >     used."
> > 
> > At the same time, it say:
> > 
> >    "For the purpose of SR-Algorithm TLV advertisement, area-
> >     scoped flooding is REQUIRED."
> > 
> > So, does it mean a) a router MUST use area-scoped flooding for sending,
> > and
> 
> no. It says that that for the purpose of the SR-Algorithm TLV area scope is
> required. That means it cannot be link-scope, but it can be
> autonomous-system scope, because that is also covering the area-scope.

May I suggest to add the words "at least" to make the wording more
explicit?

    "For the purpose of SR-Algorithm TLV advertisement, at least
     area-scoped flooding is REQUIRED."

Thanks,
Erik