On Tue, Mar 19, 2013 at 7:01 AM, Wendy Roome <[email protected]>wrote:
> Whoops -- I meant [9.1.2] should say that an ALTO server must provide > 'numerical' OR 'ordinal' mode, not that a server must support both! > I agree. 9.1.2 should be brought in sync with the requirement we stated in 5.1.2 which states: An ALTO Server MUST support at least one of 'numerical' and 'ordinal' costs. Actually, in 9.1.2 how about we simply state: This resource MUST be provided for at least the 'routingcost' Cost Type. [ For the moment I'm assuming that we keep the 'routingcost' Cost Type ] > Related question: Do we really need to require that all ALTO servers > support a Cost Type named 'routingcost'? Suppose I have an ALTO server that > provides a custom Cost Type to a select group of authorized clients. None > of those clients need 'routingcost'. Why must my server support a Cost Type > that no client will ever use? So I'd be happy to drop that requirement > altogether. > > Aside: My design philosophy is Libertarian, so I tend to challenge "MUST" > requirements. I think they should exist only if they are absolutely > necessary for interoperability. > > - Wendy Roome > > From: "Y. Richard Yang" <[email protected]> > Date: Mon, March 18, 2013 15:12 > Subject: Re: [alto] minor inconsistency in draft 14 > > Hi Wendy, > > So you think each implementation MUST provide both numerical and ordinal > modes for the 'routingcost' metric. I believe that this is true for all > existing implementations, and hence a useful requirement. > > If no objection from others, we should add this to ensure interop. > > Thanks! > > Richard > > On Mon, Mar 18, 2013 at 10:38 AM, Wendy Roome > <[email protected]>wrote: > >> We've worked hard to allow ALTO servers to use ordinal mode instead of >> numerical mode. However, Section "9.1.2 Cost Maps" (first paragraph, last >> sentence) says: >> >> This resource MUST be provided for at least the >> 'routingcost' Cost Type and 'numerical' Cost Mode. >> >> >> I think that should read >> >> ... Cost Type and either 'numerical' or 'ordinal' Cost Mode. >> >> - Wendy Roome >> >> >> _______________________________________________ >> alto mailing list >> [email protected] >> https://www.ietf.org/mailman/listinfo/alto >> > > > _______________________________________________ > alto mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/alto > >
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