Hi Everyone,<div>So, Joe - did you want to change it so that /28 and shorter prefix lengths should be swipped, and that the /29s are trivial? What is it you'd like us to look at?</div><div>Thanks,</div><div>Stacy Taylor
</div><div><br><br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Ray Plzak</b> <<a href="mailto:plzak@arin.net">plzak@arin.net</a>><br>Date: Jan 8, 2008 3:31 AM
<br>Subject: Re: [arin-discuss] /29 limit for ARIN SWIP whois<br>To: "<a href="mailto:arin-discuss@arin.net">arin-discuss@arin.net</a>" <<a href="mailto:arin-discuss@arin.net">arin-discuss@arin.net</a>><br>
<br><br>This discussion needs to move to the ppml as it concerns a policy and its merits and rationale.<br><font color="#888888"><br>Ray<br></font><div class="Ih2E3d"><br>> -----Original Message-----<br>> From: <a href="mailto:arin-discuss-bounces@arin.net">
arin-discuss-bounces@arin.net</a> [mailto:<a href="mailto:arin-discuss-">arin-discuss-</a><br></div><div class="Ih2E3d">> <a href="mailto:bounces@arin.net">bounces@arin.net</a>] On Behalf Of Leo Bicknell<br>> Sent: Monday, January 07, 2008 10:14 PM
<br>> To: <a href="mailto:arin-discuss@arin.net">arin-discuss@arin.net</a><br></div><div><div></div><div class="Wj3C7c">> Subject: Re: [arin-discuss] /29 limit for ARIN SWIP whois<br>><br>> In a message written on Sun, Jan 06, 2008 at 10:23:23AM -0500, Joe
<br>> Maimon wrote:<br>> > Is there any overriding reason to limit ARIN swip to /29 or bigger?<br>><br>> I will point out (in IPv4):<br>><br>> /32 assignment (e.g. dial up, DSL, etc) is by definition 100% utilized.
<br>><br>> In terms of subnets, which only make sense if you have two more more<br>> devices (router + one or more hosts):<br>><br>> /31 subnet by definition is 100% used.<br>> /30 subnet by definition is 100% used (router, host, network,
<br>> broadcast).<br>> /29 subnet is at minimum 50% used (router, host, network, broadcast).<br>> If we further assume this was done because a /30 was not large<br>> enough (e.g. people are doing the right thing) there must be at
<br>> least 5/8's, or 62.5% in use. Also, while the standard may be 80%<br>> utilization, which would require 7 of the 8 IP's to be in use;<br>> that leaves an interesting corner case where 5/8 and 6/8 can't
<br>> fit in a /30, but don't meet 80%. Thus it makes sense to count<br>> 5/8 and 6/8 as fully utilized, making it all but impossible to<br>> have an underutilized /29.<br>><br>> Now, one of ARIN's primary uses for the data is to insure assignments
<br>> were made in accordance with ARIN's rules when someone requests more<br>> space. There's no reason to review a /30, /31, or 32, as there's no<br>> chance those assignments were under-utilized.<br>
><br>> --<br>> Leo Bicknell - <a href="mailto:bicknell@ufp.org">bicknell@ufp.org</a> - CCIE 3440<br>> PGP keys at <a href="http://www.ufp.org/~bicknell/" target="_blank">http://www.ufp.org/~bicknell/
</a> Read TMBG List -<br>> <a href="mailto:tmbg-list-request@tmbg.org">tmbg-list-request@tmbg.org</a>, <a href="http://www.tmbg.org" target="_blank">www.tmbg.org</a><br></div></div><div><div></div><div class="Wj3C7c">_______________________________________________
<br>ARIN-Discuss<br>You are receiving this message because you are subscribed to the ARIN<br>Discussion Mailing List (<a href="mailto:ARIN-discuss@arin.net">ARIN-discuss@arin.net</a>).<br>Unsubscribe or manage your mailing list subscription at:
<br><a href="http://lists.arin.net/mailman/listinfo/arin-discuss" target="_blank">http://lists.arin.net/mailman/listinfo/arin-discuss</a><br>Please contact the ARIN Member Services Help Desk at <a href="mailto:info@arin.net">
info@arin.net</a><br>if you experience any issues.<br></div></div></div><br><br clear="all"><br>-- <br>:):)<br>/S
</div>