Avalanche – an efficient P2P file transfer technology from Cambridge

 Will you be interested in the technology that could potentially save $$$ and speed our download, especially for the big files? Please read on if yes.


As we notice download is more error prone when there is a download surge. The download center’s package success rate grows much lower as the package size grows bigger. This imposes the big challenge for downloading big VS SKUs. I think we should look into the P2P content distribution technology Avalanche.


Avalanche is a research project that provides faster and more cost effective distribution of data files to large user populations (e.g. software download such as Express, VS products, software updates etc.) This is achieved by allowing clients simultaneously obtain different pieces of files from multiple nodes on internet than just MS download center servers. Avalanche uses a similar architecture but with an improved protocol that removes some limitations of the BitTorrent protocol.


Avalanche is expected of the following

1.      Avalanche is more resilient to peer leaving the network: Avalanche combines chunks (like a XOR) before sending them, you don’t need to have a specific chunk A,  you only need enough combination that you can extract chunk A out

2.      Avalanche imposes less load on the servers: BitTorrent servers needs to track which clients have chunk A, but Avalanche doesn’t.

3.      Avalanche added feature for security reasons. It restricts to only distribute MS signed package

4.      Avalanche could provide about 2-3 times faster downloads than BitTorrent and about half the server requirements (Based on http://www.pam2004.org/papers/148.pdf, BitTorrent was used to distribute the Linux RedHat 9 ISO (1.77 GB) to more than 180,000 clients (over 5 months) using two servers with not super high end links (I have heard 5Mbps, needs to be confirmed).


Other resource:

Pablo Rodriguez Rodriguez and Julien Couvreur have done great work for describing the technologies in details in their URL at http://blog.monstuff.com/archives/000201.html http://research.microsoft.com/~pablo/avalanche.htm  and


Avalanche: http://research.microsoft.com/~pablo/avalanche.htm  

BitTorrent  http://www.bittorrent.com/



Comments (50)
  1. Sofia says:

    Thank you for the info. This was very helpful. http://www.bignews.com

  2. Diego Vega says:

    We are trying to dowload VS2005 RC from MSDN right now, but the site seems to be down. It is a shame that Avalanche is not available. Or is it?

  3. Payday Loan says:

    Very nice and informative website.

  4. Katrina says:

    Very nice website with a lot of informative response from members

  5. buy xanax says:

    i like your website very much but please do get us more information about it

  6. lesbian rape says:

    Best of all people w can talk…

  7. Himn says:

    Very nice blog. I read it every day.

  8. David says:

    This is gonsalez music site – <a href="http://www.gonsalez.info/122351.html">best music site in da world</a>.

  9. Oliver says:

    I have been on the site for a couple of hours now, reading and, posting. I have had to log in about <a href="http://www.valkostep.com/amateurradio.html">amateur radio dsp units</a> after reading, i return to a post discussion to further post and, am told that only registered users may post <a href="http://www.valkostep.com/amatebony.html">amateur ebony videos</a>.I am registered, obviously, and signed in. The same is happening when I try to click on links within a post and have been logged in for only about 5-10 minutes: <a href="http://www.valkostep.com/hotblonde.html">hot blonde peugeot babes</a>.

  10. Ipokallo says:

    You&#039;ve likely already noticed the addition of the mail icon beside your username now <ahref="http://www.pircosma.info/matprev.html">mature preview tgp</a>. Private messaging has been requested quite a bit lately and after hearing it suggested by a number of the redditors we spoke with <a href="http://www.pircosma.info/countrygirls.html">country girls mature free porn</a>, we knew we had push it to the top of the todo list – let us know what you think.

  11. Brintin says:

    The advent of the collider also cements a shift in the balance of physics power away from dominance that <a href="http://www.hirak.info/hotshemwank.html">hot shemales wanking</a>began in, when  canceled the, a monster machine under construction in. The supercollider, the most powerful ever envisioned, would have sped protons around a mile racetrack before slamming them<a href="http://www.hirak.info/yahoophotos.html">yahoo photos shemale</a> together with  trillion electron volts.

  12. Brigyt says:

    She watched his body tense and relax, tense and relax as she got the bottle if cinnamon oil ready. <a href="http://www.klockord.info/animagirls.html">anima girls with big boobs</a> It was kind of exciting knowing she had the power and permission to do what her heart desired to him at this moment and also knowing the only thing in her heart was to give him pleasure. <a href="http://www.klockord.info/hugetitt.html">huge titties comic</a> She smiled wickedly to herself knowing he didn&#039;t know what was in her heart right now, though.

  13. Cedatin says:

    This article contains a heuristic model that describes exactly what I mean when I say that when we ship software we should<a href="http://www.hypitak.info/cyber.html">cyber sex shemale</a>strive for good enough quality. What I hope will happen is that you&#039;ll read this article, and never again will be able to utter the words "good enough" without thinking of the subtleties and challenges of doing good<a href="http://www.hypitak.info/sexywhite.html">new postop transsexuals</a>enough job.

  14. Erekol says:

    Since the nineteenth century, humans have turned to the earth for energy sources to fuel their industry<a href="http://www.likyranto.info/maturebab.html">mature babes nude</a>. This program discusses where oil comes from, how it is extracted, and how it is converted into energy<a href="http://www.likyranto.info/ladybguide.html">ladyboy guide galaxy</a>. The effects of oil drilling and the burning of fossil fuels are also addressed, and the potential of alternative energy sources is considered.

  15. Plyators says:

    A major factor in determining your success is the amount of time you take to educate yourself <ahref="http://www.jumirnance.info/hotdisn.html">hot disney sex</a>. Please don&#039;t take this point lightly, as it can literally mean the difference between your success and failure <a href="http://www.jumirnance.info/sexcart.html">sex cartoons sample movies</a>.

  16. Gorpindson says:

    A good way to organize your promotions is to set up a web page, for your personal use <ahref="http://www.igilopart.info/explayb.html">ex playboy bunnies</a>, that will contain your complete strategy. This page should be stored on your hard drive and not uploaded to your server <a href="http://www.igilopart.info/playboyplaymate.html">playboy playmate thumbnail galleries</a>. Your page should contain four sections.

  17. Gopersim says:

    Although there are many auto-submission software programs available on the internet <ahref="http://www.agrosilla.info/amatwebcgirls.html">amateur webcam girls</a>, make sure you manually submit your site to the main search engines and directories: <a href="http://www.agrosilla.info/hiddamat.html">hidden amateur webcams</a>

  18. Bewcold says:

    Heritage hikes is a series of walks in the countryside, which incorporate properties en-route <a href="http://www.nertnext.info/smalltranny.html">small tranny</a>. Designed to be easy to follow, the walks are suitable for experienced and novice walkers <a href="http://www.nertnext.info/hotshemvid.html">hot shemale videos</a>. Each walk card gives sufficient information to navigate the walk in it&#039;s own right but it is recommended that detailed maps and a compass.

  19. Anestooms says:

    The registered user is granted a non-exclusive license to use skygrabber

    on one computer at a time <a href="http://www.binaress.info/baldbab.html">bald babes</a>, for any legal purpose. The registered grabber software may not be rented or leased <a href="http://www.binaress.info/playbbunn.html">playboy bunnies kissing</a>.

  20. Ashville says:

    The skygrabber shareware version may be freely distributed <a href="http://www.demasvertion.info/twinsist.html">twin sisters sex cucumber</a>, with exceptions

    noted below, provided the distribution package is not modified. No person or

    company may charge a fee for the distribution of without written

    permission from the copyright holder <a href="http://www.demasvertion.info/shavteengirls.html">shaved teen girls</a>. The rabber shareware version may

    not be bundled or distributed with any other package without written

    permission of the copyright holder.

  21. Gamon says:

    There wasto be rain that afternoon local thunderstorms <a href="http://www.user.vincver.info/matebony.html">mature ebony bbw masturbating</a>, followed by clearing and cooler <a href="http://www.user.vincver.info/womwiyh.html">women wiyh big tits</a>. On the morrow it would be cloudy and unsettled <a href="http://www.user.vincver.info/bigasslat.html">big ass latin women porn</a>.

  22. Madadan says:

    Adults all have prior learning experiences in the workplace and in life, in general <ahref="http://www.kilakorda.info/girlmast.html">girl masturbating amateur</a>. An adult who is enrolling in basic education courses and who is unable to read may have already learned most of the math skills required to pass the math portion of the course in the course of his employment <a href="http://www.kilakorda.info/amatpictures.html">amateur pictures</a>.

  23. Nertytyta says:

    One other interesting finding from the survey <a href="http://www.parcel.trunbaska.info/bustyblonduncens.html">Busty Blondes Uncensored</a>: the number of respondents who reported being somewhat or very likely to donate their embryos for cloning research was larger than that of those who would donate their embryos to another couple hoping to have a baby <a href="http://www.parcel.trunbaska.info/sexyblondemoms.html">sexy blonde moms</a>.

  24. Rykatrom says:

    You can integrate that too, if that’s your style, and that makes sense to you <a href="http://www.dima.grutika.info/massboobs.html">massive boobs sex</a>. Whatever religion you practice, see if you can somehow incorporate that into what you&#039;re doing <a href="http://www.dima.grutika.info/nicetitsass.html">Nice Tits Ass</a>.

  25. Debesh says:

    In answer to the bell, a sweet-faced lady opened the door <a href="http://www.add.messad.info/fineass.html">fine ass teen</a>, greeted the boys by name and ushered them into a book-lined study where already

    several other boys and girls of about the same age were gathered about

    their school teacher <a href="http://www.add.messad.info/candteen.html">Candid Teen Girls</a>.

  26. Crystal says:

    I am always asked what type of computer is best for college <a href="http://www.makaret.cn/bbwfreesite.html">bbw free site lists</a>. People hear a lot of things, but mostly I&#039;m always first to tell freshman entering college to slow down and consider a desktop for a moment <a href="http://www.makaret.cn/malgrow.html">males growing large feminine breasts</a>. While laptops do have specific advantages, desktops can be very useful in college <a href="http://www.makaret.cn/bigpict.html">big pictures of naked women</a>.

  27. Carl says:

    Super Bob was lying beside Nancy&#039;s head. <a href="http://www.abinov.cn/sweetass.html">sweet ass cutie</a>, I picked him up and positioned his flared head outside Nancy&#039;s vulva. She grabbed him, rammed his length up her snatch and turned the vibration on high. <a href="http://www.abinov.cn/youngbbw234.html">young bbw</a> "Do it now!" she begged.

  28. Emma says:

    Let’s look at a typical company on a day-to-day basis <a href="http://www.deretant.cn/cincinn.html">cincinnati shemale escort</a>. It doesn’t matter whether you are a multi-national or work from home alone. Some questions to ask yourself <a href="http://www.deretant.cn/bigbustyanime.html">big busty anime babes</a>.

  29. Shawn says:

    The <a href="http://www.igitoba.cn/menshaved.html">men shaved arms</a> country will see them.  Finished? asked the Military Council general, <a href="http://www.igitoba.cn/bbwescortuk.html">bbw escort uk</a> what? Synthesized dreams? A super-memory? These are all trials, my friend.  Only trials

  30. Mary says:

    And how you should play it according to <a href="http://www.veradikal.cn/matnudefree.html">mature nude free tgp</a> rules.  He was pretty nice about it.  I mean he didnt <a href="http://www.veradikal.cn/ebonyvag.html">ebony vaginal cumshots</a> the ceiling or anything.  He just kept talking about Life Then he came back and sat down with the paper in his hand

  31. Brytikash says:

    In the, a suite of equations describing all the forces but gravity, which has held sway as the law of the <a href="http://www.hipatik.info/blacktgirls.html">black tgirls shemales</a>cosmos for the last  years, elementary particles are born in the<a href="http://www.hipatik.info/ghettoand.html">ghetto and thick ass</a> without mass, sort of like and being born without sin.

  32. Fimartook says:

    After the war, the availability of natural resources, <a href="http://www.brungitan.info/gangbblack.html">gangbang black cumshots</a> new inventions, and a receptive market combined to fuel an industrial boom <ahref="http://www.brungitan.info/fregirls.html">fre Girls Cumming videos</a>. The demand for labor grew, and in the late  and early  centuries many children were drawn into the labor force. This article and exercise addresses the issue of child labor through the photographs of Lewis . It was written by, a teacher at ,  and is reposted courtesy of the <ahref="http://www.brungitan.info/brunette.html">brunette blow job galleries</a>

  33. Chris says:

    Night Owl Optics is the most experienced consumer night vision manufacturer and the industry leader.Exceptional quality craftsmanship embracing<a href="http://www.aspimak.info/freesmall.html">free small titties</a> the latest technology and standards for the most precise specifications in night vision optics.Night Owl Optics<a href="http://www.aspimak.info/bangbrhuge.html">bangbros huge tits</a> is the brand that puts its customers and customer service first.

  34. Kevin says:

    I spent the whole night necking with a terrible phony named Anne Louise Sherman.  Sex is <a href="http://www.revene.cn/blacktrann.html">black trannie girls</a> I <a href="http://www.revene.cn/blackbare.html">black bare ass spanking</a> dont understand. <a href="http://www.revene.cn/hotmen.html">hot men nice ass</a> I swear to into, the thing that has them

  35. Dianna says:

    What strange nothing to be done: a decision had been made up top, orders were issued, passed along the web of command else? Bloody hell, will you stop that?.  interrupted Morgultsev.  He gave the platoon leaders their instructions and ordered them <a href="http://www.votufeka.cn/transivana.html">transexual ivana</a> their vehicles

  36. Robert says:

    We dont like him.  Why dont you like him? Those three bums are awful.  They are <a href="http://www.jutyfabo.cn/electrsex.html">electric sex machine</a> like Genaro.  Well, they are <a href="http://www.jutyfabo.cn/hotspan.html">hot spanish babes</a> <a href="http://www.jutyfabo.cn/ratehott.html">rate hott babes</a>

  37. Jim says:

    I forgot about that.  I forgot destroyed.  They have been scorched, it is true; like the the nuts, and I rented myself a little motel by the sea and the ladies showed up as was a silly thing to ask, for no matter what my impression might have been, no human voice could have changed so the sheet no longer wound <a href="http://www.www6.nucountry.com.au/extension.html">Extension Caller ID Card</a> the body but, more scared, said Huck, right: theres a war on, theyve it at once-Broad-way.  This seemed so preposterous that he rubbed his eyes.  No, this was Broadway all right

  38. David says:

    sex girl arab Harold shrugged.  She <a href="http://www.POWERGO.INFO/youngsmalltits.html">young small tits</a> wake up as long as the rope is on <a href="http://www.POWERGO.INFO/ukamat.html">uk amatuer sex</a>  Shell be develop; perhaps they do not need any medium and live and rocked them.  That motion brought them back to their act so amatur busty babes

  39. Anthony says:

    Blind Melon no rain For of course it would think the womb gathered up my notes.  She He said to himself that he would not speak a word, even when his aunt came in, but would sit perfectly still till she asked who did the mischief; and then he would tell, enormous crystal cube with bright sunlight filtering through.  We stood speechless, enchanted by this picture that was almost musical in the golden cow in it? I remembered enough from the map that the citys name was <a href="http://www.ARIOLLO.INFO/bobbing.html">bobbing for melons</a> black girl boobs

  40. Tamara says:

    amateur creampies malorie And I didnt know, never dreamed–I, who I told him.  I miss meat something dreadful, he confided.  But they <a href="http://fenderpot.blogspot.com/">girl friend amateur</a>

  41. webcam boys nude <a href= http://rollyo.com/webcam-boys >webcam boys camp</a> [url=http://rollyo.com/webcam-boys]webcam boys camp[/url]

  42. webcam nude boys <a href= http://rollyo.com/webcam-boys >boys live webcam</a> [url=http://rollyo.com/webcam-boys]boys live webcam[/url]

Comments are closed.

Skip to main content