<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Walu,<div><br></div><div>Perhaps the provider in question only has a small handful (10 or so) services that they want to put up on anycast. In such a case, the /24 is usable, but, not fully utilized and the /22 would be simply a waste.</div><div><br></div><div>Having a dozen or so anycast services that each need an address doesn't mean you don't have other things that require unicast addresses. The current policy makes it difficult to deploy both.</div><div><br></div><div>Owen</div><div><br><div><div>On Apr 18, 2012, at 3:32 AM, Walubengo J wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><table cellspacing="0" cellpadding="0" border="0" style="position: static; z-index: auto; "><tbody><tr><td valign="top" style="font: inherit;">McTim, <br><br>I still dont understand the problem...u say current minimum allocation from AfriNIC is a /22 while typically anycast service prodivers want to only use a /24? What is wrong with getting the /22 and using the /24 portion or better still the full /22?<br><br>The other challenge you cite is underutilization - when the service provider attempts to get more space? But then why cant the service provider not utilize the full /22 block for anycast services? Am thinking /22 gives you 2^10 (1,024 hosts) while /24 gives u 2^8 (256 hosts) - am not understanding what would stop the anycast service provider from making full use of the 1,024 hosts.<br><br>plse explain.<br><br>walu.<br><br>--- On <b>Wed, 4/18/12, McTim <i><<a href="mailto:dogwallah@gmail.com">dogwallah@gmail.com</a>></i></b> wrote:<br><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px;
padding-left: 5px;"><br>From: McTim <<a href="mailto:dogwallah@gmail.com">dogwallah@gmail.com</a>><br>Subject: [AfriNIC-rpd] Draft Policy: Anycast Assignments in the AfriNIC region<br>To: "AfriNIC Resource Policy Discussion List" <<a href="mailto:rpd@afrinic.net">rpd@afrinic.net</a>><br>Date: Wednesday, April 18, 2012, 1:52 AM<br><br><div class="plainMail">Dear RPD,<br><br>Below is the proposal on Anycast I submitted to pdwg last week.<br><br>It is somewhat of a "strawman" in that it gives us a starting point<br>for discussion.<br><br>I look forward to your feedback.<br><br>-- <br>Cheers,<br><br>McTim<br>"A name indicates what we seek. An address indicates where it is. A<br>route indicates how we get there." Jon Postel<br><br><br>> ===<br>><br>><br>> Unique identifier: AFPUB-2012-V4-001-DRAFT-01<br>> Draft Policy Name: Anycast Assignments in the AfriNIC region<br>> Authors:<br>> a) Tim McGinnis | <a ymailto="mailto:dogwallah@gmail.com" href="x-msg://2680/mc/compose?to=dogwallah@gmail.com">dogwallah@gmail.com</a> | ISC/PDWG Co-Chair<br>> b) Mark J Elkins | <<a ymailto="mailto:mje@posix.co.za" href="x-msg://2680/mc/compose?to=mje@posix.co.za">mje@posix.co.za</a> | Posix Systems - South Africa<br>> c) Mauritz Lewies | <<a ymailto="mailto:mauritz@three6five.com" href="x-msg://2680/mc/compose?to=mauritz@three6five.com">mauritz@three6five.com</a> | Co-founder at<br>> Three6Five Network Solutions<br>><br>> Submission Date: April 17 2012<br>> Related Policies: None<br>> Obsoletes: None<br>> Amends: AFPUB-2005-v4-001, AFPUB-2006-GEN-001,<br>> AFPUB-2010-v4-005-draft-05<br>><br>><br>><br>> 1. Summary of the Problem Being Addressed by this Policy Proposal<br>><br>> Unless one is in charge of "critical infrastructure" in the AfriNIC<br>> region, an organization cannot get an allocation or assignment<br>> purely for anycast or
GPRS Roaming Exchange (GRX) usage. I<br>> understand there are organizations that would like to use<br>> anycast/GRX for non-critical infrastructure in the region, but<br>> cannot due to policy limitations.<br>><br>> In addition, current anycast practice announces an entire /24.<br>> AfriNIC's current IPv4 policy states that the minimum allocation<br>> size on initial allocation is a /22. To use a /22 for anycast when<br>> you potentially are only using a few addresses in the block is wasteful.<br>><br>> Also, if an organisation uses some of its allocation (or assignment)<br>> for anycast services, it may not be able to justify the use of it's<br>> current allocation/assignment when requesting additional resources.<br>><br>> 2. Summary of How this Proposal Addresses the Problem<br>><br>> This proposal allows the use of one (1) /24 of IPv4 for anycast<br>> services from a PA
allocation or end user assignment. These /24s<br>> will be assumed to be "fully utilised" by AfriNIC staff when<br>> considering utilisation for first allocation or for an additional<br>> allocation or assignment.<br>><br>> 3. Proposal<br>><br>> 3.1 An organization may obtain one (1) /24 IPv4 prefix for anycast<br>> or GRX purposes from an allocation or end-user assignment. These<br>> prefixes must be used for the sole purpose of anycasting web or<br>> authoritative DNS servers as described in BCP126/RFC 4786<br>> (<a href="http://www.ietf.org/rfc/rfc4786.txt" target="_blank">http://www.ietf.org/rfc/rfc4786.txt</a> or for GPRS Roaming Exchange.<br>><br>> These prefixes will count as being fully utilised when an<br>> organization applies for additional resources. The utilization<br>> criteria that apply to all IPv4 initial allocation or assignment<br>> requests shall be waived for anycast
allocation or assignment requests.<br>><br>> 3.2 Blocks used for anycast services cannot be further assigned or<br>> sub-allocated. They shall be tagged with the status attribute in the<br>> AfriNIC DB as "ASSIGNED ANYCAST".<br>><br>><br>> ===<br>_______________________________________________<br>rpd mailing list<br><a ymailto="mailto:rpd@afrinic.net" href="x-msg://2680/mc/compose?to=rpd@afrinic.net">rpd@afrinic.net</a><br><a href="https://lists.afrinic.net/mailman/listinfo.cgi/rpd" target="_blank">https://lists.afrinic.net/mailman/listinfo.cgi/rpd</a><br></div></blockquote></td></tr></tbody></table>_______________________________________________<br>rpd mailing list<br><a href="mailto:rpd@afrinic.net">rpd@afrinic.net</a><br>https://lists.afrinic.net/mailman/listinfo.cgi/rpd<br></blockquote></div><br></div></body></html>