Re: [Idr] WGLC on draft-ietf-idr-as-private-reservation-00

[Brian Dickson <[e-mail]>]

The as-dot/bit-boundary style typically uses a lot less space, and there
are several "nice" candidates:

64512.0 = 4227858432 (same start, shifted 16 bits left)
64850.0 = 4250009600 (the 4250000000 and up range is more human-friendly
without eating too much)
65000.0 = 4259840000 (has a bunch of zeros at the end, more
asplain-obvious?)
65280.0 = 4278190080 (currently in the draft)

Of course, it may also be reasonable to set aside a third range:
4000000000 through TBD2 as Reserved (not part of new range, nor part of
Public range, just "off limits", as a kind of DMZ).

That range can be freed up if need be later, e.g. once we have colonized
the galaxy. :-)

Brian

On Mon, Dec 10, 2012 at 4:18 PM, Jeff Wheeler <[e-mail]> wrote:

> On Mon, Dec 10, 2012 at 1:40 PM, Jon Mitchell <[e-mail]>
> wrote:
> > The draft originally was more human/decimal boundary friendly before it
> > was a WG doc.  There has been some on list, some on meeting (Vancouver)
> > and some out of meeting discussions I did before we moved from nice
> > decimal boundary to nice bit or asplain friendly boundary).  Here is one
> > of the emails:
>
> I read the mail thread you linked, but it did not give me any
> understanding why folks prefer a bit-boundary instead of a
> human-readable boundary.  I will ask some more operator colleagues to
> give their opinions.  I am surprised anyone would think bit-boundary
> is the smartest choice if one of the alternatives looks nicer in the
> CLI/NMS.
>
> I understand what you mean if the CLI/NMS allows you to customize and
> create multiple prefixes like PRIVATEn and this might be nice for some
> applications.  However, VPLS has clearly figured this out with label
> blocks.  The applications for making numerous PRIVATEn prefixes within
> a network are likely to have conceptually similar demands, in so far
> as the management of number ranges is concerned.  Even if they aren't,
> though, it seems clear that router software developers have mastery of
> subtraction and addition, along with the bit-wise operators.
> --
> Jeff S Wheeler <[e-mail]>
> Sr Network Operator  /  Innovative Network Concepts
> _______________________________________________
> Idr mailing list
> [e-mail]
> https://www.ietf.org/mailman/listinfo/idr
>