{"id":1039,"date":"2017-05-25T13:31:27","date_gmt":"2017-05-25T20:31:27","guid":{"rendered":"https:\/\/ant.isi.edu\/blog\/?p=1039"},"modified":"2020-10-19T09:39:42","modified_gmt":"2020-10-19T16:39:42","slug":"new-technical-report-verfploeter-broad-and-load-aware-anycast-mapping","status":"publish","type":"post","link":"https:\/\/ant.isi.edu\/blog\/?p=1039","title":{"rendered":"new technical report &#8220;Verfploeter: Broad and Load-Aware Anycast Mapping&#8221;"},"content":{"rendered":"<p>We have released a new technical report \u201c<a href=\"https:\/\/www.isi.edu\/~johnh\/PAPERS\/Vries17a.pdf\">Verfploeter: Broad and Load-Aware Anycast Mapping<\/a>\u201d,by Wouter B. de Vries,&nbsp;Ricardo de O. Schmidt, Wes Haraker, John Heidemann, Pieter-Tjerk de Boer, and Aiko Pras&nbsp;as an ISI technical report ISI-TR-717.<\/p>\n<p><figure id=\"attachment_1042\" aria-describedby=\"caption-attachment-1042\" style=\"width: 300px\" class=\"wp-caption alignright\"><a href=\"https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2017\/05\/Vries17a_icon.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-1042\" src=\"https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2017\/05\/Vries17a_icon-300x129.png\" alt=\"\" width=\"300\" height=\"129\" srcset=\"https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2017\/05\/Vries17a_icon-300x129.png 300w, https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2017\/05\/Vries17a_icon-1024x441.png 1024w, https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2017\/05\/Vries17a_icon-768x331.png 768w, https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2017\/05\/Vries17a_icon-1536x662.png 1536w, https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2017\/05\/Vries17a_icon-2048x882.png 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1042\" class=\"wp-caption-text\">Verfploeter coverage of B-Root. Circle radiuses are how many \/24 blocks in each 2&#215;2 degree region go to B-Root, and colored slices indicate which go to LAX and which to MIA. (Figure 2b from [Vries17a], dataset: SBV-5-15).<\/figcaption><\/figure>From the abstract:<\/p>\n<blockquote><p>IP anycast provides DNS operators and CDNs with automatic fail-over and reduced latency by breaking the Internet into <em>catchments<\/em>, each served by a different anycast site. Unfortunately, <em>understanding<\/em>&nbsp;and <em>predicting<\/em>&nbsp;changes to catchments as sites are added or removed has been challenging. Current tools such as RIPE Atlas or commercial equivalents map from thousands of vantage points (VPs), but their coverage can be inconsistent around the globe. This paper proposes <strong><em>Verfploeter<\/em><\/strong>, a new method that maps anycast catchments using active probing. Verfploeter provides around 3.8M virtual VPs, 430x the 9k physical VPs in RIPE Atlas, providing coverage of the vast majority of networks around the globe. &nbsp;We then add load information from prior service logs to provide calibrated predictions of anycast changes. Verfploeter has been used to evaluate the new anycast for B-Root, and we also report its use of a 9-site anycast testbed. We show that the greater coverage made possible by Verfploeter&#8217;s active probing is necessary to see routing differences in regions that have sparse coverage from RIPE Atlas, like South America and China.<\/p><\/blockquote>\n<p>All datasets used in this paper (but one) are available at <a href=\"https:\/\/ant.isi.edu\/datasets\/anycast\/index.html#verfploeter\">https:\/\/ant.isi.edu\/datasets\/anycast\/index.html#verfploeter<\/a> .<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We have released a new technical report \u201cVerfploeter: Broad and Load-Aware Anycast Mapping\u201d,by Wouter B. de Vries,&nbsp;Ricardo de O. Schmidt, Wes Haraker, John Heidemann, Pieter-Tjerk de Boer, and Aiko Pras&nbsp;as an ISI technical report ISI-TR-717. From the abstract: IP anycast provides DNS operators and CDNs with automatic fail-over and reduced latency by breaking the Internet [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[282,283],"tags":[43,71,63,157,58,67,22,10,161,5,41,142,170,26,57,144],"class_list":["post-1039","post","type-post","status-publish","format-standard","hentry","category-publications","category-technical-report","tag-anycast","tag-datasets","tag-dns","tag-impact","tag-isi","tag-lacrend","tag-measurement-systems","tag-network-datasets","tag-nipet","tag-papers","tag-predict","tag-researchroot","tag-retrofuturebridge","tag-tech-report","tag-usc","tag-utwente"],"_links":{"self":[{"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1039","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1039"}],"version-history":[{"count":4,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1039\/revisions"}],"predecessor-version":[{"id":1595,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1039\/revisions\/1595"}],"wp:attachment":[{"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1039"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1039"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}