Re: [Idr] WGLC for draft-ietf-idr-rfc5575bis-04

Job Snijders <job@ntt.net> Mon, 16 October 2017 17:49 UTC

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Date: Mon, 16 Oct 2017 19:49:54 +0200
From: Job Snijders <job@ntt.net>
To: Christoph Loibl <c@tix.at>
Cc: draft-ietf-idr-rfc5575bis@ietf.org, idr@ietf.org
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References: <00A83D9A-C00E-4A91-8007-421067DCE879@juniper.net> <20171014153402.GY19142@Vurt.local> <55EAFCD6-4783-4DDD-B1B9-30AF18FD2342@tix.at> <20171016120520.GM19142@Vurt.local> <5B6788C8-6E39-4CF0-880A-2D35DCCEEB82@tix.at> <20171016163046.mxgeamcgdx6xhzoh@hanna.meerval.net> <20171016170701.zya6xoa5tsbwohw6@hanna.meerval.net> <2BC99F74-930C-4826-A1C0-9F1C520B9A8A@tix.at>
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Subject: Re: [Idr] WGLC for draft-ietf-idr-rfc5575bis-04
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On Mon, Oct 16, 2017 at 05:30:51PM +0000, Christoph Loibl wrote:
> > On 16 Oct 2017, at 19:07, Job Snijders <job@ntt.net>; wrote:
> > 
> > On Mon, Oct 16, 2017 at 04:30:46PM +0000, Job Snijders wrote:
> >> OLD: For IP prefix values (IP destination and source prefix) precedence
> >>     is given to the lowest IP value of the common prefix length; if the
> >>     common prefix is equal, then the most specific prefix has
> >>     precedence
> >> 
> >> PERHAPS:
> >>    For IP prefix values (destination or source) the common high-order
> >>    bits are compared. The number of common bits to compare is the
> >>    lowest prefix-length of the two prefixes. If the high-order bits are
> >>    equal, the prefix with the longer prefix-length has higher
> >>    precedence. If the common high-order bits are different, the prefix
> >>    with the lowest numeric value takes higher precedence.
> > 
> > Still feels wonky, maybe this:
> > 
> > PERHAPS:
> >    For IP prefix values (destination or source) the common high-order
> >    bits are compared. The number of common bits to compare is the
> >    lowest prefix-length value of the two prefixes. If the high-order
> >    bits are equal, the prefix with the longer prefix-length has higher
> >    precedence. If the common high-order bits are different, the prefix
> >    with the set of bits that represent the lowest numeric value takes
> >    higher precedence.
> > 
> 
> PERHAPS: For IP prefix values (IP destination or source prefix): If
> the prefixes are overlapping, the one with the longer prefix-length
> has higher precedence. If they are not overlapping the one with the
> lowest IP value has higher precedence.

Works for me!

Kind regards,

Job