<?xml version="1.0" encoding="UTF-8"?> <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:sy="http://purl.org/rss/1.0/modules/syndication/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:creativeCommons="http://backend.userland.com/creativeCommonsRssModule"><channel><title>Disruptive Library Technology Jester &#187; internet2</title> <atom:link href="http://dltj.org/tag/internet2/feed/" rel="self" type="application/rss+xml" /><link>http://dltj.org</link> <description>We&#039;re Disrupted, We&#039;re Librarians, and We&#039;re Not Going to Take It Anymore</description> <lastBuildDate>Mon, 06 Feb 2012 20:04:22 +0000</lastBuildDate> <language>en</language> <sy:updatePeriod>hourly</sy:updatePeriod> <sy:updateFrequency>1</sy:updateFrequency> <cloud domain='dltj.org' port='80' path='/?rsscloud=notify' registerProcedure='' protocol='http-post' /> <creativeCommons:license>http://creativecommons.org/licenses/by-nc-sa/3.0/us/</creativeCommons:license> <item><title>Thursday Threads: SOPA, PROTECT-IP, Research Works Act, and Broad E-Textbook Pilot</title><link>http://dltj.org/article/thursday-threads-2012w03/</link> <comments>http://dltj.org/article/thursday-threads-2012w03/#comments</comments> <pubDate>Thu, 19 Jan 2012 11:20:56 +0000</pubDate> <dc:creator>Peter Murray</dc:creator> <category><![CDATA[Thursday Threads]]></category> <category><![CDATA[advocacy]]></category> <category><![CDATA[Association of American Publishers]]></category> <category><![CDATA[H.R.3261 (112th Congress)]]></category> <category><![CDATA[H.R.3699 (112th Congress)]]></category> <category><![CDATA[intellectual property]]></category> <category><![CDATA[internet2]]></category> <category><![CDATA[legislation]]></category> <category><![CDATA[open access]]></category> <category><![CDATA[PROTECT-IP Act]]></category> <category><![CDATA[publishing]]></category> <category><![CDATA[Research Works Act]]></category> <category><![CDATA[rootstrikers]]></category> <category><![CDATA[S.968 (112th Congress)]]></category> <category><![CDATA[Stop Online Piracy Act]]></category><guid isPermaLink="false">http://dltj.org/?p=3594</guid> <description><![CDATA[Receive DLTJ Thursday Threads:by&#160;E-mailby&#160;RSSDelivered by FeedBurner One could say it is an all intellectual property edition of DLTJ Thursday Threads. How could one miss the outpouring of opposition to SOPA/PROTECT-IP? If that was an overwhelming story you might have missed &#8230; <a href="http://dltj.org/article/thursday-threads-2012w03/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description> <content:encoded><![CDATA[<abbr class="unapi-id ignore noPrint" title="http://dltj.org/?p=3594"></abbr><div id="feedburner-thursday-threads-email-2011w27" class="wp-caption alignright noprint noFrontPage" style="width: 230px;;  border: 1px solid #dddddd; background-color: #f3f3f3; padding-top: 4px; margin: 10px; text-align:center; float: right;"><form style="border: 1px solid rgb(204, 204, 204); padding: 3px; margin: 0pt; text-align: center;" action="http://feedburner.google.com/fb/a/mailverify" method="post" target="popupwindow" onsubmit="window.open('http://feedburner.google.com/fb/a/mailverify?uri=thursday-threads', 'popupwindow', 'scrollbars=yes,width=550,height=520');return true"><p>Receive <i><acronym title="Disruptive Library Technology Jester">DLTJ</acronym></i> Thursday Threads:</p><p>by&nbsp;<a href="http://feedburner.google.com/fb/a/mailverify?uri=thursday-threads&amp;loc=en_US" title="D.L.T.J. Thursday Threads Email Subscription">E-mail</a><br /><input style="width: 140px;" name="email" value="Your e-mail address" onfocus="if (this.defaultValue==this.value) this.value = ''" type="text"/><input value="thursday-threads" name="uri" type="hidden"/><input name="loc" value="en_US" type="hidden"/><input value="Subscribe" type="submit"/></p><p>by&nbsp;<a href="http://feeds.dltj.org/thursday-threads/" title="D.L.T.J. Thursday Threads RSS Feed">RSS</a></p><p style="font-size: 80%;">Delivered by <a href="http://feedburner.google.com" target="_blank" title="Google Feedburner Service">FeedBurner</a></p></form></div><p> One could say it is an all intellectual property edition of <i><acronym title="Disruptive Library Technology Jester">DLTJ</acronym> Thursday Threads</i>.  How could one miss the <a href="#p3594-protect-ip">outpouring of opposition to SOPA/PROTECT-IP</a>?  If that was an overwhelming story you might have missed the <a href="#p3594-rwa">introduction of the Research Works Act</a> that could end the open access mandates now at the National Institutes of Health and coming elsewhere.  And because we need some good news, <a href="#p3594-etexts">Internet2 announced a new electronic textbook pilot</a> that could be really interesting.</p><p>Feel free to send this to others you think might be interested in the topics.  If you find these threads interesting and useful, you might want to add the <a title="RSS Feed for DLTJ Thursday Threads" href="http://feeds.dltj.org/thursday-threads/">Thursday Threads RSS Feed</a> to your feed reader or subscribe to e-mail delivery using the form to the right. <em>New this year is that <strong>Pinboard has replaced FriendFeed as my primary aggregation service</strong>.</em> If you would like a more raw and immediate version of these types of stories, watch <a title="Peter Murray | Pinboard" href="http://pinboard.in/u:dltj">my Pinboard bookmarks</a> (or subscribe to <a title="RSS feed for Peter Murray's Pinboard account" href="http://feeds.pinboard.in/rss/u:dltj/">its feed</a> in your feed reader).  Items posted to are also sent out as <a title="Peter Murray's Twitter page" href="https://twitter.com/DataG">tweets</a>; you can <a target="_blank" href="https://twitter.com/intent/user?screen_name=DataG">follow me on <span style="background-image: url(&quot;//si0.twimg.com/images/dev/cms/intents/bird/bird_blue/bird_16_blue.png&quot;); background-repeat: no-repeat; padding-left: 18px;">Twitter</span></a>.  Comments and tips, as always, are <a href="http://dltj.org/contact">welcome</a>.</p><p><h2 id="p3594-protect-ip">Support for Web Bill Wanes as Protests Spread</h2></p><blockquote><p>When the powerful world of old media mobilized to win passage of an online antipiracy bill, it marshaled the reliable giants of K Street — the United States Chamber of Commerce, the Recording Industry Association of America and, of course, the motion picture lobby, with its new chairman, former Senator Christopher J. Dodd, the Connecticut Democrat and an insider’s insider.</p><p>Yet on Wednesday this formidable old guard was forced to make way for the new as Web powerhouses backed by Internet activists rallied opposition to the legislation through Internet blackouts and cascading criticism, sending an unmistakable message to lawmakers grappling with new media issues: Don’t mess with the Internet.<div style="text-align: right; width: 100%;"><cite>- <a href="http://www.nytimes.com/2012/01/19/technology/web-protests-piracy-bill-and-2-key-senators-change-course.html?_r=2&#038;pagewanted=all" title="Support for Web Bill Wanes as Protests Spread | New York Times">Support for Web Bill Wanes as Protests Spread</a>, By Jonathan Weisman, New York Times</cite></div></blockquote><p>The population of the internet became very familiar with the Stop Online Piracy Act (SOPA) and the PROTECT-IP Act (<abbr title="also known as">a.k.a.</abbr> PIPA) today with major internet services like Wikipedia blocking access to its articles and Google placing a black rectangle over its logo.  Advocacy sites like <a href="http://americancensorship.org/" title="Stop American Censorship &mdash; a campaign from Fight for the Future">americancensorship.org</a> and <a href="http://blacklist.eff.org/" title="Stop the Internet Blacklist Legislation">blacklist.eff.org</a> and <a href="https://www.google.com/landing/takeaction/">www.google.com/landing/takeaction</a> sprang up to prompt U.S. citizens to call their Senators and non-U.S. citizens to petition the U.S. State Department to set in motion opposition to bills that once seemed inevitable.  And all sorts of people took to Twitter to protest the fact that they couldn&#8217;t use Wikipedia to answer their homework.</p><p>It wasn&#8217;t all a one-way street, though.  Former Senator Chris Dodd (and now <abbr title="Motion Picture Association of America">MPAA</abbr> chairperson) <a href="http://mpaa.org/resources/c4c3712a-7b9f-4be8-bd70-25527d5dfad8.pdf" title="Statement by Senator Chris Dodd, Chairman and CEO of the Motion Picture Association of America, Inc. (MPAA) on the so-called 'Blackout Day' protesting anti-piracy legislation [PDF]">denounced</a> the protests as &#8220;an irresponsible response and a disservice to people who rely on [the sites] for information and [who] use their services.&#8221;  House Judiciary Committee Chairperson Lamar Smith <a href="http://judiciary.house.gov/news/01172012.html" title="Stop Online Piracy Act Markup to Resume in February | U.S. House Committee on the Judiciary" class="broken_link" rel="nofollow">announced that his committee will resume consideration of SOPA in February</a>.  And PROTECT-IP Act sponsor Senator Leahy released <a href="http://leahy.senate.gov/press/press_releases/release/?id=FA72C841-0F44-40B8-BD88-B4AD106F82FC" title="The PROTECT IP Act: Targeting Websites DEDICATED To Infringement | Senator Patrick Leahy">a point-by-point rebuttal</a> to some of the claims made by opponents.</p><p>At the end of the day, the protest clearly had an effect on the legislation as co-sponsors dropped their support of PROTECT-IP and others made statements opposing the bill.  As this is being written on the evening of the 18th, the <a href="http://projects.propublica.org/sopa/pipa" title="About PIPA (Preventing Real Online Threats to Economic Creativity and Theft of Intellectual Property Act of 2011) | Who in Congress Supports SOPA and PIPA/PROTECT-IP? | SOPA Opera | ProPublica">ProPublica lists 41 Senators supporting and 19 Senators opposing or &#8220;leaning no&#8221;</a> (<a href="http://www.opencongress.org/wiki/Protect_IP_Act_Senate_whip_count" title="Protect IP Act Senate whip count | OpenCongress wiki">OpenCongress&#8217; whip count lists it as 34 to 35</a> versus last night&#8217;s OpenCongress count of 39 to 16), so it is unclear whether there the 60 votes required to end debate and move for passage of PROTECT-IP in the Senate <a href="http://www.opencongress.org/articles/view/2458-PIPA-first-on-Senate-agenda-on-Jan-24th-2012" title="PIPA first on Senate agenda on Jan. 24th, 2012 | OpenCongress blog">as promised by Senate Majority Leader Harry Reid</a>.</p><p>I&#8217;ve stated <a href="http://dltj.org/tag/sopa">my objections to SOPA</a> and <a href="http://dltj.org/tag/protect-ip" class="broken_link" rel="nofollow">my objections to PROTECT-IP</a>, and <a href="http://dltj.org/article/stop-sopa-and-protect-ip/" title="Stop SOPA and Protect-IP | Disruptive Library Technology Jester">reiterated them today</a> by putting up an anti-SOPA/PROTECT-IP splash page on <i><acronym title="Disruptive Library Technology Jester">DLTJ</acronym></i>.  I also still think there is more to learn a few levels deeper than the anti-SOPA/PROTECT-IP advocacy.  ProPublica has a project called <a href="http://projects.propublica.org/sopa/" title="Who in Congress Supports SOPA and PIPA/PROTECT-IP? | ProPublica">Who in Congress Supports SOPA and PIPA/PROTECT-IP?</a> that offers a variety of ways to categorize supporters and opponents of the legislation including an accounting of campaign donations by industry.  On my own Stop-SOPA/PROTECT-IP page, I ask readers to look into Laurence Lessig&#8217;s <a href="http://rootstrikers.org/" title="Rootstrikers homepage">#Rootstrikers movement</a>.  A big part of the disconnect and dysfunctional nature of public office holders is the role that campaign contributions play — or, at best, have the appearance of influence — in the public policy decision making.  So while SOPA/PROTECT-IP opponents may have won the battle, there is much to do to win the war of undue influence that created SOPA and PIPA in the first place.</p><p><h2 id="p3594-rwa">More Legislative Shenanigans: Research Works Act</h2></p><blockquote><p>In case <a href="http://publishing.umich.edu/2011/12/15/sopa-stop-online-piracy-act/" title="What We&#8217;re Reading, SOPA edition">SOPA, the Stop Online Piracy Act,</a> hasn’t given you enough heartburn, here’s another development on the legislative horizon to be concerned about–<a href="http://thomas.loc.gov/cgi-bin/bdquery/z?d112:h.r.3699:" title="Bill Summary &amp; Status  -  112th Congress (2011 - 2012)  - H.R.3699 - THOMAS (Library of Congress)">H.R. 3699, the Research Works Act</a>. The Association of American Publishers has provided a <a href="http://www.publishers.org/press/56/" title="Publishers Applaud “Research Works Act,” Bipartisan Legislation To End Government Mandates on Private-Sector Scholarly Publishing | The Association of American Publishers">summary of what they hope the bill will accomplish</a>, which is a frightening read for those of us committed to the principles of Open Access. It appears that H.R. 3699 would seriously threaten public access to federally funded research and deal a critical blow to the Open Access movement, which has been&nbsp;buoyed by exactly the kind of activity H.R. 3699 seeks to curtail in the AAP’s view, namely public access mandates and the development of repositories for publicly funded research.<div style="text-align: right; width: 100%;"><cite>- <a href="http://publishing.umich.edu/2012/01/05/more-legislative/" title="More Legislative Shenanigans: Research Works Act (H.R. 3699)">More Legislative Shenanigans: Research Works Act (H.R. 3699)</a>, by <a href="http://www.lib.umich.edu/users/mkahn" title="Meredith Kahn homepage | MLibrary">Meredith Kahn</a>, University of Michigan&#8217;s MPublishing blog</cite></div></blockquote><p>Yes, that&#8217;s right &#8212; more intellectual property legislation in front of the U.S. Congress.  This time it is a bill that would protect the business interests of academic publishers by preventing the U.S. government from mandating open access to federally funded research.  An article in The Guardian (U.K.) paper says <a href="http://www.guardian.co.uk/science/2012/jan/16/academic-publishers-enemies-science" title="Academic publishers have become the enemies of science | Dr Mike Taylor | Science | guardian.co.uk">academic publishers have become the enemies of science</a>. The twist here is that one of the sponsors of the Research Works Act is none other that Representative Darrell Issa, one of the leading opponents to SOPA in the House Judiciary Committee.  As you might guess, campaign donations are involved and so there is a <a href="http://rootstrikers.org/mailings/help-us-fight-sopa/" title="Help us fight SOPA v2! | Rootstrikers">call from #Rootstrikers to help fight &#8220;SOPA v2&#8243;</a>.</p><p><h2 id="p3594-etexts">Internet2, McGraw-Hill, Courseload, and Five Universities Implement eText Pilot in Spring 2012</h2></p><blockquote><p>Participating universities in the pilot get McGraw-Hill eTexts, the Courseload reader and annotation platform integrated with their Learning Management System, and can be part of a joint research study of eText use and perceptions. Through the Courseload software, students can print, use social annotation with classmates and instructors, and access their eTexts on any HTML5-capable tablet, smartphone, or computer. Students will receive their eTexts at no cost as the institutions are subsidizing the study, and students who prefer a full hardcopy book may optionally order a print-on-demand version of the eText for a $28 fee. Faculty interest at the pilot institutions has been very strong.<div style="text-align: right; width: 100%;"><cite>- <a href="http://internet2.edu/news/pr/2012.01.18.etext-pilot.html" title="Internet2, McGraw-Hill, Courseload, and Five Universities Implement eText Pilot in Spring 2012 | Internet2 Press Release">Internet2, McGraw-Hill, Courseload, and Five Universities Implement eText Pilot in Spring 2012</a>, Internet2 Press Release</cite></div></blockquote><p>This is good news for students and etextbooks.  It sounds like a good experiment and I&#8217;m eager to see the outcomes of the pilot.  And something that might make next week&#8217;s <i><acronym title="Disruptive Library Technology Jester">DLTJ</acronym> Thursday Threads</i>?  The rumor that <a href="http://www.washingtonpost.com/business/technology/apple-expected-to-delve-into-textbooks/2012/01/18/gIQA52iH9P_story.html" title="Apple expected to delve into textbooks | The Washington Post">Apple is expected to delve into textbooks</a> in an announcement today.</p>]]></content:encoded> <wfw:commentRss>http://dltj.org/article/thursday-threads-2012w03/feed/</wfw:commentRss> <slash:comments>4</slash:comments> </item> <item><title>Bandwidth of Large Airplanes</title><link>http://dltj.org/article/bandwidth-of-large-airplanes/</link> <comments>http://dltj.org/article/bandwidth-of-large-airplanes/#comments</comments> <pubDate>Wed, 09 Jun 2010 01:40:55 +0000</pubDate> <dc:creator>Peter Murray</dc:creator> <category><![CDATA[Raw Technology]]></category> <category><![CDATA[internet2]]></category> <category><![CDATA[networking]]></category><guid isPermaLink="false">http://dltj.org/?p=1600</guid> <description><![CDATA[Back in the early days of this blog, I had a post on Buzzwords Galore and Bandwidth that May Rival Your Station Wagon. The topic was a &#8220;hybrid optical and packet network&#8221; being deployed by Internet2 in 2006, and in &#8230; <a href="http://dltj.org/article/bandwidth-of-large-airplanes/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description> <content:encoded><![CDATA[<abbr class="unapi-id ignore noPrint" title="http://dltj.org/?p=1600"></abbr><p>Back in the early days of this blog, I had a post on <a href="http://dltj.org/article/internet2-hopi-network/" title="DLTJ Blog Post: Buzzwords Galore and Bandwidth that May Rival Your Station Wagon">Buzzwords Galore and Bandwidth that May Rival Your Station Wagon</a>.  The topic was a &#8220;hybrid optical and packet network&#8221; being deployed by Internet2 in 2006, and in the tail end of the post text I explained the reference to the station wagon part of the post title:<br /><blockquote> When you think you have a really zippy network connection, someone will (should?) bring up an <a href="http://www.bpfh.net/sysadmin/never-underestimate-bandwidth.html" title="Never underestimate the bandwidth....">old internet adage</a> which says “Never underestimate the bandwidth of a station wagon full of tapes.”</p></blockquote><p> In the post comments, Walt Crawford asked &#8220;How about a 747 full of BluRay discs?&#8221;  I must have been bored, because <a href="http://dltj.org/article/internet2-hopi-network/#comment-2142">I calculated that bandwidth as 37Tb/s</a>, and I even showed my work.  Last week an internet citizen going by the name &#8220;Steveo&#8221; <a href="http://dltj.org/article/internet2-hopi-network/#comment-72083">updated the table</a> for an <a href="http://www.aerospace-technology.com/projects/airbus_a380/" title="Airbus A380-800F Wide-Bodied Freighter">Airbus A38-800F</a>.  He (or she) and I arrived at different numbers (Steveo seems to have mistaken cubic feet for cubic meters in the calculation and didn&#8217;t update the maximum airspeed figure), so perhaps it is time to revisit this topic.  (And while we&#8217;re at it, we&#8217;ll throw in numbers for Boeing&#8217;s latest freighter aircraft: the 747-8F.)</p><table><thead><tr><th></th><th valign="bottom"><a href="http://www.boeing.com/commercial/747family/freighter/index.html" title="Boeing 747-400 Freighter Family">Boeing 747-400F</a></th><th valign="bottom"><a href="http://www.boeing.com/commercial/747family/747-8_facts.html" title="Boeing 747-8 Intercontinental and 747-8 Freighter">Boeing 747-8, Freighter</a></th><th valign="bottom"><a href="http://www.airbus.com/en/aircraftfamilies/a380/a380f/home/" title="Airbus A380F">Airbus A380-800F</a> (proposed)</th></tr></thead><tbody><tr class="odd"><td>Cargo capacity of aircraft, in cargo configuration, in cubic meters</td><td align="right"><a href="http://www.boeing.com/commercial/747family/pf/pf_400f_prod.html" title="Boeing Commercial Airplanes -- 747 Freighter Technical Characteristics"><span class="sourceLink">Source</span></a><sup><a href="http://dltj.org/article/bandwidth-of-large-airplanes/#footnote_0_1600" id="identifier_0_1600" class="footnote-link footnote-identifier-link" title="The original posting listed 159 as the capacity using a source that is no longer on the web.  According to the Boeing site, 159 is the capacity of the lower deck, which doesn&amp;#8217;t include the 605 cubic meters of capacity on the main deck.  Go figure.">1</a></sup> &nbsp;&nbsp;764</td><td align="right"><a href="http://www.boeing.com/commercial/747family/747-8_fact_sheet.html" title="Boeing 747-8 Fact Sheet"><span class="sourceLink">Source</span></a>&nbsp;&nbsp;857.7</td><td align="right"><a href="http://www.aerospace-technology.com/projects/airbus_a380/" title="Airbus A380-800F Wide-Bodied Freighter"><span class="sourceLink">Source</span></a>&nbsp;&nbsp;1,134</td></tr><tr><td>Volume of a carton of 200 slim jewel cases (53cm by 26cm by 15.5cm), <a href="http://www.wolframalpha.com/input/?i=cubic+meter+volume+of+a+cube+53+cm+by+26+cm+by+15.5+cm" title="cubic meter volume of a cube 53 cm by 26 cm by 15.5 cm - Wolfram|Alpha">in cubic meters</a>&nbsp;&nbsp;<a href="http://yfdvd.en.alibaba.com/product/50050678/50231342/CD_Cases/5_2mm_Slim_CD_Case.html" title="Detailed info for 5.2mm Slim CD Jewel Case,CD holder,5.2mm Slim CD Jewel Case,YF-E24D on Alibaba.com"><span class="sourceLink">Source</span></a></td><td align="center" colspan="3">&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;0.021359&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;</td></tr><tr class="odd"><td>Number of cartons of slim jewel cases per aircraft</td><td align="right">35,769</td><td align="right">40,156</td><td align="right">53,092</td></tr><tr><td>Number of slim jewel cases, each with one Blu-ray DVD, per aircraft</td><td align="right">7,153,800</td><td align="right">8,031,200</td><td align="right">10,618,400</td></tr><tr class="odd"><td>Data capacity of one Blu-ray DVD, dual layer, in Gigabytes&nbsp;&nbsp;<a href="http://www.blu-ray.com/faq/#bluray_capacity_data" title="Blu-ray FAQ"><span class="sourceLink">Source</span></a></td><td align="center" colspan="3">&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;50&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;</td></tr><tr><td>Same, in Gigabits (8 bits per byte)</td><td align="center" colspan="3">&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;400&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;-&nbsp;</td></tr><tr class="odd"><td>Data capacity of one aircraft, in the cargo configuration, filled with dual-layer Blu-ray DVDs in slim jewel cases, in gigabits</td><td align="right">2,851,520,000</td><td align="right">3,212,480,000</td><td align="right">4,247,360,000</td></tr><tr><td>Maximum cruising speed of aircraft, in knots</td><td align="right"><a href="http://www.airliners.net/aircraft-data/stats.main?id=100" title="Boeing 747-400 | Airliners.net"><span class="sourceLink">Source</span></a>&nbsp;&nbsp;507</td><td align="right"><a href="http://www.boeing.com/commercial/747family/747-8_fact_sheet.html" rel="nofollow" title="Boeing 747-8 Fact Sheet"><span class="sourceLink">Source</span></a><sup><a href="http://dltj.org/article/bandwidth-of-large-airplanes/#footnote_1_1600" id="identifier_1_1600" class="footnote-link footnote-identifier-link" title="Converted from Mach to knots via Google.">2</a></sup>&nbsp;&nbsp;559</td><td align="right"><a href="http://www.aerospace-technology.com/projects/airbus_a380/specs.html" rel="nofollow" title="Specifications: Airbus A380-800F Wide-Bodied Freighter" class="broken_link"><span class="sourceLink">Source</span></a><sup><a href="http://dltj.org/article/bandwidth-of-large-airplanes/#footnote_2_1600" id="identifier_2_1600" class="footnote-link footnote-identifier-link" title="&amp;#8220;Maximum Level Speed&amp;#8221; from specs converted from mach to knots via Google.">3</a></sup>&nbsp;&nbsp;589</td></tr><tr class="odd"><td>Flight time between New York’s JFK airport and Los Angeles’ LAX airport at maximum cruising, in seconds<sup><a href="http://dltj.org/article/bandwidth-of-large-airplanes/#footnote_3_1600" id="identifier_3_1600" class="footnote-link footnote-identifier-link" title="&amp;#8220;Includes 15 minute bias&amp;#8221;">4</a></sup></td><td align="right"><a href="http://www.airrouting.com/content/TimeDistanceForm.aspx?__EVENTTARGET=&amp;__EVENTARGUMENT=&amp;__VIEWSTATE=%2FwEPDwUKMTc5NDA3Mzg0NWRkiNLSAWDfhkw1vjYUq4%2Bf5%2FFERGA%3D&amp;__EVENTVALIDATION=%2FwEWBgLmhKjYAgKw5o7sCQKl0K2%2FDQLk4daGDgLY7aXMBALc09TDBfiq%2FElvteLG94cR98Y8oxeXwGWX&amp;ctl00%24ContentPlaceHolder1%24txtDepartureICAO=JFK&amp;ctl00%24ContentPlaceHolder1%24txtArrivalICAO=LAX&amp;ctl00%24ContentPlaceHolder1%24txtAirSpeed=507&amp;ctl00%24ContentPlaceHolder1%24BtnSubmit=Submit" title="Time and Distance Calculator Results: JFK to LAX at 507 knots"><span class="sourceLink">Source</span></a>&nbsp;&nbsp;16,200</td><td align="right"><a href="http://www.airrouting.com/content/TimeDistanceForm.aspx?__EVENTTARGET=&amp;__EVENTARGUMENT=&amp;__VIEWSTATE=%2FwEPDwUKMTc5NDA3Mzg0NWRkiNLSAWDfhkw1vjYUq4%2Bf5%2FFERGA%3D&amp;__EVENTVALIDATION=%2FwEWBgLmhKjYAgKw5o7sCQKl0K2%2FDQLk4daGDgLY7aXMBALc09TDBfiq%2FElvteLG94cR98Y8oxeXwGWX&amp;ctl00%24ContentPlaceHolder1%24txtDepartureICAO=JFK&amp;ctl00%24ContentPlaceHolder1%24txtArrivalICAO=LAX&amp;ctl00%24ContentPlaceHolder1%24txtAirSpeed=559&amp;ctl00%24ContentPlaceHolder1%24BtnSubmit=Submit" title="Time and Distance Calculator Results: JFK to LAX at 559 knots"><span class="sourceLink">Source</span></a>&nbsp;&nbsp;14,760</td><td align="right"><a href="http://www.airrouting.com/content/TimeDistanceForm.aspx?__EVENTTARGET=&amp;__EVENTARGUMENT=&amp;__VIEWSTATE=%2FwEPDwUKMTc5NDA3Mzg0NWRkiNLSAWDfhkw1vjYUq4%2Bf5%2FFERGA%3D&amp;__EVENTVALIDATION=%2FwEWBgLmhKjYAgKw5o7sCQKl0K2%2FDQLk4daGDgLY7aXMBALc09TDBfiq%2FElvteLG94cR98Y8oxeXwGWX&amp;ctl00%24ContentPlaceHolder1%24txtDepartureICAO=JFK&amp;ctl00%24ContentPlaceHolder1%24txtArrivalICAO=LAX&amp;ctl00%24ContentPlaceHolder1%24txtAirSpeed=589&amp;ctl00%24ContentPlaceHolder1%24BtnSubmit=Submit" title="Time and Distance Calculator Results: JFK to LAX at 589 knots"><span class="sourceLink">Source</span></a>&nbsp;&nbsp;14,040</td></tr><tr><td>Bandwidth of cargo aircraft filled to capacity with Blu-ray discs in slim jewel cases traveling at maximum rated cruising speed between John F Kennedy Intl airport and Los Angeles Intl airport, in gigabits per second</td><td align="right"><strong>176,637</strong></td><td align="right"><strong>217,648</strong></td><td align="right"><strong>302,519</strong></td></tr></tbody></table><p><div id="attachment_1628" class="wp-caption alignright" style="width: 160px;  border: 1px solid #dddddd; background-color: #f3f3f3; padding-top: 4px; margin: 10px; text-align:center; float: right;"><a href="http://www.boeing.com/commercial/747family/freighter/freighter4.html" title="Boeing: Commercial Airplanes - 747-400 Freighters"><img src="http://cdn.dltj.org/wp-content/uploads/2010/06/400f_k61246_n-150x150.jpg" alt="Picture of the Main Cargo Deck of a Boeing 747-400F" title="Main Cargo Deck of a Boeing 747-400F" width="150" height="150" class="size-thumbnail wp-image-1628" /></a><p style=' padding: 0 4px 5px; margin: 0;'  class="wp-caption-text">Boeing 747-400F Main Cargo Deck. How many rectangular boxes can we fit in a round space?</p></div>As with the first post, this of course assumes a negligible time to load and unload said Boeing 747-400, no airport congestion, a frictionless plane and a perfect spherical earth, along with several other typical <a href="http://www.halexandria.org/dward125.htm" title="Physics &#038;039;Assumptions&#038;039;">assumptions from the world of physics</a>.  It also assumes that your can fit rectangular-shaped cartons in a cargo space that is clearly curved while still maximizing space.  Check my math and let me know if I made a mistake.</p><p>Now, by contrast, the latest notice I could find of high-speed data transfer over a network was a mention in December last year.  In a press release from Caltech with the title &#8220;<a href="http://media.caltech.edu/press_releases/13309" title="High Energy Physicists Set New Record for Network Data Transfer -  Caltech">High Energy Physicists Set New Record for Network Data Transfer</a>&#8221; is this paragraph:<br /><blockquote>The focus of the exhibit was the [High Energy Physics] team&#8217;s record-breaking demonstration of storage-to-storage data transfer over wide area networks from two racks of servers and a network switch-router on the exhibit floor [of SuperComputing 2009 in Portland, Oregon]. The high-energy physics team&#8217;s demonstration, &#8220;Moving Towards Terabit/Sec Transfers of Scientific Datasets: The LHC Challenge,&#8221; achieved a bidirectional peak throughput of 119 gigabits per second (Gbps) and a data flow of more than 110 Gbps that could be sustained indefinitely among clusters of servers on the show floor and at Caltech, Michigan, San Diego, Florida, Fermilab, Brookhaven, CERN, Brazil, Korea, and Estonia.</p></blockquote><p>So, 110 Gbps from a network and 217,648 Gbps from a Boeing 747-8 Freighter.  (We&#8217;re not counting yet the capacity of the theoretical Airbus A380-800F.) Only three orders of magnitude before the proverbial station wagon full of tapes is put to rest.</p><p><h2>Updates</h2><br /><em>10-Jun-2010</em>. If you have read this far, be sure to check out <a href="http://walt.lishost.org/2010/06/bandwidth-of-large-airplanes-take-2/" title="Bandwidth of Large Airplanes, Take 2 from Walt at Random">&#8220;Bandwidth of Large Airplanes, Take 2&#8243;</a> by Walt Crawford.  He takes on the points of 100-disc spindles, 2TB hard drives, and whether weight is a limiting factor in this scheme.  Thanks, Walt!</p><h2>Footnotes</h2><ol class="footnotes"><li id="footnote_0_1600" class="footnote">The original posting listed 159 as the capacity using a source that is no longer on the web.  According to the <a href="http://www.boeing.com/commercial/747family/pf/pf_400f_prod.html" title="Boeing Commercial Airplanes -- 747 Freighter Technical Characteristics">Boeing site</a>, 159 is the capacity of the lower deck, which doesn&#8217;t include the 605 cubic meters of capacity on the main deck.  Go figure.</li><li id="footnote_1_1600" class="footnote"><a href="http://www.google.com/search?q=Mach+0.845+in+knots" title="Mach 0.845 in knots - Google Search">Converted from Mach to knots via Google</a>.</li><li id="footnote_2_1600" class="footnote">&#8220;Maximum Level Speed&#8221; from specs <a href="http://www.google.com/search?q=Mach+0.89+in+knots" title="Mach 0.89 in knots - Google Search">converted from mach to knots via Google</a>.</li><li id="footnote_3_1600" class="footnote">&#8220;Includes 15 minute bias&#8221;</li></ol>]]></content:encoded> <wfw:commentRss>http://dltj.org/article/bandwidth-of-large-airplanes/feed/</wfw:commentRss> <slash:comments>13</slash:comments> </item> <item><title>Access Management and Provisioning Technology</title><link>http://dltj.org/article/access-management-and-provisioning-technology/</link> <comments>http://dltj.org/article/access-management-and-provisioning-technology/#comments</comments> <pubDate>Tue, 18 Jul 2006 19:21:41 +0000</pubDate> <dc:creator>Peter Murray</dc:creator> <category><![CDATA[Fedora]]></category> <category><![CDATA[Library SOA]]></category> <category><![CDATA[Raw Technology]]></category> <category><![CDATA[acegi]]></category> <category><![CDATA[grouper]]></category> <category><![CDATA[internet2]]></category> <category><![CDATA[library service-oriented architecture]]></category> <category><![CDATA[nmi-edit]]></category> <category><![CDATA[provisioning]]></category> <category><![CDATA[Shibboleth]]></category> <category><![CDATA[signet]]></category> <category><![CDATA[spring framework]]></category> <category><![CDATA[xacml]]></category><guid isPermaLink="false">http://dltj.org/2006/07/access-management-and-provisioning-technology/</guid> <description><![CDATA[Building on the shoulders of others &#8212; isn&#8217;t that how that quote goes? There has been a stack of printouts on my desk for a while now for various access management and service provisioning technologies. Rather than keep the paper, &#8230; <a href="http://dltj.org/article/access-management-and-provisioning-technology/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description> <content:encoded><![CDATA[<abbr class="unapi-id ignore noPrint" title="http://dltj.org/2006/07/access-management-and-provisioning-technology/"></abbr><p>Building on the shoulders of others &#8212; isn&#8217;t that how that quote goes?  There has been a stack of printouts on my desk for a while now for various access management and service provisioning technologies.  Rather than keep the paper, I&#8217;m putting the list here so I know how to get back to them if/when I need to.  (Of course, along the way if you&#8217;d like to comment on them or suggest others to look at, please feel free to do so in the comments.)  Note, too, that by listing them here I&#8217;m not proposing, or even sure if, all of these pieces come together to a coherent structure.</p><p><h2>Grouper &#8212; Internet2 Middleware</h2><br />&#8220;<a href="http://middleware.internet2.edu/dir/groups/grouper/" title="Grouper --- Internet2 Middleware">Grouper</a> is an open source toolkit for managing groups. It is designed to function as the core element of a common infrastructure for managing group information across integrated applications and repositories. Grouper combines multiple sources of group information, both automated and manual, in managing memberships and other group information in a Group Registry, a central information asset complementary to a site&#8217;s Person Registry.  Grouper manages two primary types of objects: groups and namespaces. Groups are created and named within a namespace. Group management authority can be limited &#8221;</p><p>Now at version 0.9, Grouper is part of a suite of tools from the <a href="http://www.nsf-middleware.org/" title="http://www.nsf-middleware.org/">NSF Middleware Initiative (NMI)</a> that supports &#8220;development, testing, and dissemination of architectures, software, and practices in the areas of identity and access management.&#8221;</p><p><h2>Signet &#8211; Internet2 Middleware</h2><br />&#8220;Core middleware services such as identity management, directory, and authentication provide a foundation for secure, manageable applications throughout an institution. Even with this foundation, as systems and applications proliferate it becomes more and more difficult to manage user access consistently and cost-effectively. [The <a href="http://middleware.internet2.edu/signet/" title="Signet - Internet2 Middleware">Signet] privilege management service</a> is a relatively new component of campus middleware that addresses this problem by providing centralized management of user privileges across a range of applications.  The benefits of this service include:  a standard user interface for privilege administrators; consistent, simplified policy definition, via roles and integration with core campus organizational data; improved visibility, understandability, and auditability of privilege information; and standard interfaces to other infrastructure services and to application systems to support integration.&#8221;</p><p>Now at version 1.01, released 29-Mar-2006.  Could this kind of provisioning service be used to generate XACML files to drive FEDORA?</p><p><h2>OASIS eXtensible Access Control Markup Language (XACML)</h2><br />&#8220;<a href="http://www.oasis-open.org/committees/xacml/" title="http://www.oasis-open.org/committees/xacml/">XACML</a> is expected to address fine grained control of authorized activities, the effect of characteristics of the access requestor, the protocol over which the request is made, authorization based on classes of activities, and content introspection (i.e. authorization based on both the requestor and potentially attribute values within the target where the values of the attributes may not be known to the policy writer). XACML is also expected to suggest a policy authorization model to guide implementers of the authorization mechanism.&#8221;</p><p><a href="http://sunxacml.sourceforge.net/" title="Sun&#039;s XACML Implementation">Sun&#8217;s XACML Implementation</a> (available at Sourceforge) is the access management engine embedded into the FEDORA repository.</p><p><h2>Acegi Security System for Spring</h2><br />&#8220;<a href="http://www.acegisecurity.org/" title="http://www.acegisecurity.org/" class="broken_link" rel="nofollow">Acegi Security</a> is a powerful, flexible security solution for enterprise software, with a particular emphasis on applications that use <a href="http://www.springframework.org/" title="Springframework.org">Spring</a>. Using Acegi Security provides your applications with comprehensive authentication, authorization, instance-based access control, channel security and human user detection capabilities.&#8221;</p><p>Release 1.0.0 came out in May 2006 after nearly two years of development.</p>]]></content:encoded> <wfw:commentRss>http://dltj.org/article/access-management-and-provisioning-technology/feed/</wfw:commentRss> <slash:comments>1</slash:comments> </item> <item><title>Buzzwords Galore and Bandwidth that May Rival Your Stationwagon</title><link>http://dltj.org/article/internet2-hopi-network/</link> <comments>http://dltj.org/article/internet2-hopi-network/#comments</comments> <pubDate>Mon, 17 Jul 2006 19:17:39 +0000</pubDate> <dc:creator>Peter Murray</dc:creator> <category><![CDATA[Raw Technology]]></category> <category><![CDATA[internet2]]></category> <category><![CDATA[optical network]]></category> <category><![CDATA[wdm]]></category><guid isPermaLink="false">http://dltj.org/2006/07/internet2-hopi-network/</guid> <description><![CDATA[At the recent LITA Top Technology Trends gathering, Clifford Lynch spoke of an advanced network emerging from Internet2 that is built as a hybrid between optical-switched and packet-switched networks. Today&#8217;s Internet2 Newsletter has a description of the activities, excerpted belowInternet2 &#8230; <a href="http://dltj.org/article/internet2-hopi-network/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description> <content:encoded><![CDATA[<abbr class="unapi-id ignore noPrint" title="http://dltj.org/2006/07/internet2-hopi-network/"></abbr><p>At the recent <a href="http://litablog.org/2006/06/25/the-annual-top-10-trends-extravaganza/" title="LITA Blog  &amp;raquo; Blog Archive   &amp;raquo; The Annual Top 10 Trends Extravaganza">LITA Top Technology Trends</a> gathering, <a href="http://dltj.org/2006/06/lita-top-tech-trends/#nid81^">Clifford Lynch spoke of an advanced network emerging from Internet2</a> that is built as a hybrid between optical-switched and packet-switched networks. <a href="http://members.internet2.edu/newsletter.cfm?date=2006-07-01#637" title="Internet2 Newsletter: July 2006">Today&#8217;s Internet2 Newsletter</a> has a description of the activities, excerpted below</p><blockquote><p><h2>Internet2 and Level 3 to Deploy Next Generation Nationwide Research Network</h2></p><p><i>The new Internet2 Network, a dynamic, innovative and cost-effective hybrid optical and packet network, will provide next-generation production services as well as a platform for the  development of new networking ideas and techniques.</i><br /><a href="http://networks.internet2.edu" title="Internet2 Networks Home Page">http://networks.internet2.edu</a></p><div style="margin-left: 3em;">Internet2  has entered into a partnership with <a href="http://www.level3.com/" title="Level 3 Communications, Inc.">Level 3 Communications</a>, a leading  national telecommunications carrier, to  provide the U.S. research and education community with a dynamic, innovative and cost-effective hybrid optical and packet network. An  extension of the Internet2 cutting-edge tradition, the new network is designed  to provide next-generation production services as well as a platform for the  development of new networking ideas and techniques. Internet2  is committed to ensuring community involvement in the development,  implementation, and operations of the new network.</p><p>The  new <a href="http://networks.internet2.edu/" title="Internet2 Networks Home Page">Internet2 Network</a> will be deployed nationally over 13,000 miles of  dedicated fiber, providing complete community control of the optical  layer and highly granular lightpath services that can be provisioned  dynamically. It  will provide short-term and long-term waves, as well as on-demand or advanced  reservation &#8220;lightpath&#8221; scheduling. The IP network, corresponding to the  current <a href="http://abilene.internet2.edu/" title="http://abilene.internet2.edu/">Abilene</a> footprint, will be built on the optical network. A basic connectivity package for direct connectors is expected to include two 10 Gbps  waves, one for IP and one for point-to-point optical services.</p><p><i>Optical  (Layer 1) network characteristics:</i></p><ul><li>Initial deployment &#8211; 10 x 10 Gbps  wavelengths along network footprint</li><li>Maximum capacity &#8211; 80 x 10 Gbps  wavelengths</li><li>Scalability &#8211; potential migration to  40 Gbps and 100 Gbps capabilities</li><li>Flexibility &#8211; support for sub-wavelength (e.g., 1 GigE) dynamic provisioning across every  wave on the network backbone.</li></ul><p>The Level 3 carrier agreement provides reliability and unprecedented community control over the networking infrastructure, without taking on the risks of equipment sparing and obsolescence as well as the burden of substantial operational responsibilities.  Level 3 will be responsible for meeting a Service Level Agreement (SLA).  The buildout of the network will happen over several months, with a target completion in the fall of 2007. The transition to the new network will not disrupt existing connectivity and services.</p></div></blockquote><p>The <a href="http://networks.internet2.edu/" title="Internet2 Networks Home Page">Internet2 Networks page</a> has a description that is a little bit more approachable:</p><blockquote><p>Internet2 and Level 3 Communications, Inc. will develop and deploy a new nationwide network and new services to enhance and support the advanced needs of the academic and research community. This new network initially will offer Internet2 members 100 gigabits per second (Gbps) of capacity, more than 10 times that of the <a href="http://abilene.internet2.edu/" title="http://abilene.internet2.edu/">current Internet2 backbone network</a>, and will be designed to easily scale to add capacity as Internet2 members requirements evolve over time. Based on input and feedback from the research and education community, including experience gained with the <a href="http://networks.internet2.edu/hopi/" title="The HOPI Home Page">Hybrid Optical and Packet Infrastructure</a> (HOPI) project, the network will be designed to support a full range of production IP services as well as new on-demand, dedicated optical wavelength services to support the most demanding network applications and experimentation.</p></blockquote><p>Okay, maybe that description isn&#8217;t all that more approachable either.  The thing is this:  the research and development community are pushing the raw networking capabilities farther and farther.  &#8220;Optical wavelength services&#8221; may not mean much to you &#8212; perhaps about as much as the intricate chemical dance that turns petroleum into gasoline, plastics, chapstick and bubble gum <sup><a href="http://dltj.org/article/internet2-hopi-network/#footnote_0_88" id="identifier_0_88" class="footnote-link footnote-identifier-link" title="Butyl Rubber is in Bubble Gum and you need petroleum to make butyl rubber.  gack">1</a></sup> &#8212; but the comparison is not too much of a stretch.  They&#8217;ve figured out how to <a href="http://en.wikipedia.org/wiki/Wavelength-division_multiplexing" title="Wavelength-division multiplexing - Wikipedia, the free encyclopedia">send multiple frequencies of light down the same piece of fibre-optic cable</a>, effectively multiplying its capacity.  The neat thing about the Internet2 work is that, should you need it, it sounds like you&#8217;ll be able to sign up for a point-to-point lightwave frequency to do with what you need.  (You&#8217;ll probably need a pretty good reason, of course.)</p><p>Oh, and the stationwagon comment?  When you think you have a really zippy network connection, someone will (should?) bring up an <a href="http://www.bpfh.net/sysadmin/never-underestimate-bandwidth.html" title="Never underestimate the bandwidth....">old internet adage</a> which says &#8220;Never underestimate the bandwidth of a station wagon full of tapes.&#8221;  (This, of course, shouldn&#8217;t be confused with the term &#8220;<a href="http://www.faqs.org/docs/jargon/S/sneakernet.html" title="http://www.faqs.org/docs/jargon/S/sneakernet.html">sneakernet</a>&#8221; &#8212; the bandwidth speed and capacity at which you could walk your flash drive over to your colleague rather than trying to e-mail, FTP, torrent, webify, or send via carrier pigeon that document that the two of you have been working on.)</p><h2>Footnotes</h2><ol class="footnotes"><li id="footnote_0_88" class="footnote"><a href="http://www.cheminst.ca/ncw/articles/1994_butylrubber_e.html" title="National Chemistry Week - Articles - Butyl Rubber And Bubble Gum">Butyl Rubber is in Bubble Gum</a> and <a href="http://www.allsealsinc.com/butyl.htm" title="Welcome to All Seals Inc.">you need petroleum to make butyl rubber</a>. <i>gack</i></li></ol>]]></content:encoded> <wfw:commentRss>http://dltj.org/article/internet2-hopi-network/feed/</wfw:commentRss> <slash:comments>21</slash:comments> </item> </channel> </rss>
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