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TCP Offload through Connection Handoffを読んだ
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Yuuki Tsubouchi (yuuk1)
November 01, 2012
Research
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2.2k
TCP Offload through Connection Handoffを読んだ
論文紹介スライド
Yuuki Tsubouchi (yuuk1)
November 01, 2012
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Transcript
5$10GqPBEUISPVHI $POOFDUJPO)BOEPGG )ZPOHZPVC,JNBOE4DPUU3JYOFS3JDF6OJWFSTJUZ *O1SPDFFEJOHTPG&VSP4ZT JEZ@VVLJ!Z@VVLJ
*OUSPEVDUJPO ‣ 5$1ॲཧʹ͓͍ͯɼϝϞϦΞΫηε͕ϘτϧωοΫ ‣ ύέοτ͋ͨΓͷॲཧʹཁ͢Δ໋ྩͷ͕ϝϞϦΞΫηε ‣ ;FSP$PQZ*0νΣοΫαϜܭࢉͷΦϑϩʔυͷΑ͏ͳٕज़Ͱɹɹɹɹɹ zύέοτσʔλzʹର͢ΔϝϞϦΞΫηε͑ΒΕΔ ‣ ;FSP$PQZ*0Χʔωϧۭ͔ؒΒϢʔβۭؒʹσʔλίϐʔΛݮͯ͠ޮԽ
‣ ݱࡏͰɼzίωΫγϣϯσʔλߏମzͷΞΫηε͕ϘτϧωοΫ ‣ ίωΫγϣϯ૿ՃʹΑΓσʔλߏମ͕$16ΩϟογϡʹͷΒͳ͘ͳΔ ‣ /*$ͷΦϑϩʔυʹΑΓϝϞϦΞΫηεݮΒͤΔ ‣ ͔͠͠ɼίωΫγϣϯ͕૿Ճ͢Δͱ/*$ͷϝϞϦʹͷΒͳ͘ͳΔ
*OUSPEVDUJPO ‣ 5$1ίωΫγϣϯϋϯυΦϑ ‣ /*$ʹશͯͷίωΫγϣϯΛΦϑϩʔυͤͣʹɼҰ෦ͷίωΫγϣ ϯΛΦϑϩʔυ͢Δ ‣ 04͍ͭͰΦϑϩʔυͨ͠ίωΫγϣϯΛऔΓͤΔͨΊɼ/*$ ͱ$16ؒͷλεΫΛશʹίϯτϩʔϧͰ͖Δɽ ‣
/*$Ϧιʔε͕গͳ͘ͳͬͨΒίωΫγϣϯΛ04ʹฦͤΔ ‣ /*$௨ৗ*1ϔομΛॲཧ͢Δ͕ɼϋϯυΦϑΛ͏ͱɼ͢Ͱʹ֬ ཱ͞ΕͨίωΫγϣϯਖ਼͍͠ϙʔτͱϧʔςΟϯάใΛͭͨ Ίɼ/*$ϧʔςΟϯά͠ͳͯ͘Α͍
*OUSPEVDUJPO ‣ 5$1ίωΫγϣϯϋϯυΦϑطଘͷఏҊͰ͋Γɼɹɹɹɹɹɹɹɹɹ ຊจͰ5$1ίωΫγϣϯϋϯυΦϑͷઃܭͱ࣮ΛఏҊ͢Δ ‣ ಠࣗͷมߋΛՃ͑ͨ'SFF#4%ͱɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹ ɹ ɹ ϓϩάϥϚϒϧͳΪΨϏοτΠʔαωοτίϯτϩʔϥʹΑΓ࣮ ‣
࣮ݧͷ݁Ռɼ֤ύέοτॲཧʹཁ͢Δ$16αΠΫϧΛݮͨ͠ ‣ ໋ͳίωΫγϣϯʹ͔͔ΘΒͣɼ41&$XFCΣϒαʔόͷɹ εϧʔϓοτ্͕ ‣ 04ͷมߋιέοτҎԼͷωοτϫʔΫελοΫʹݶఆ͞Ε͍ͯΔ ‣ ଞͷ#4%ܥ04Ͱ͜ͷϋϯυΦϑΠϯλϑΣʔεΛ༻͢Δͷ༰қ
/FUXPSL4UBDL1FSGPSNBODF ‣ 5$1ෳࡶͳϓϩτίϧͰ͋Γɼඞཁͳ$16αΠΫϧ͕େ͖͍ ‣ (I[$16ɼ,#-ΩϟογϡͰ#Λ.CTͰૹ৴ ‣ 5$1ϝϞϦΞΫηε໋ྩ͕ଟ͍ʢʣ ‣ ίωΫγϣϯ͕ଟ͍ͱ͖ʢ%ͱ&ʣʹ4UBMMTʢͪ࣌ؒʣ͕ଟ͍ ‣
5$1"$$&-&3"5*0/ ‣ طଘख๏Ͱ͋Δϑϧ5$1Φϑϩʔυͷ ‣ ܭࢉࢿݯ ‣ (CTͰϑϧʹ௨৴͢ΔͱඵؒͰ(ݸͷ໋ྩ ‣ ϓϩάϥϚϒϧͳϓϩηοαͰͳ͘ઐ༻ͷϋʔυΣΞ͕ඞཁ ‣
ίετ͕͔͔Δ͚ͩͰͳ͘ɼγεςϜͷॊೈੑଛͳ͏ ‣ ϝϞϦ༰ྔ ‣ /*$ͷϝϞϦओهԱΑΓߴ͕ͩ༰ྔ͕খ͍͞ ‣ ಉ͡ίετͰ༰ྔΛେ͖͘͢ΔͱʹͳΓɼΦϑϩʔυ͢Δҙຯ͕ͳ͍ ‣ ιϑτΣΞΞʔΩςΫνϟͷෳࡶ͞ ‣ ϙʔτ൪߸ͷׂΓৼΓͱ*1ϧʔςΟϯά୯ҰͷΠϯλϑΣʔε͚ͩͰܾΊΒΕͳ͍ ‣ ෳͷΠϯλϑΣʔεΛ·͍ͨͩάϩʔόϧͳઃܭ͕ඞཁ
$POOFDUJPO)BOEPGG ‣ ίωΫγϣϯϋϯυΦϑͷϓϩηε ‣ 04͕ίωΫγϣϯΛཱ֬͢Δ ‣ 04͕ओهԱ͔Β/*$ͱίωΫγϣϯͷঢ়ଶΛసૹ͢Δ ‣ 04ͦͷίωΫγϣϯʹର͢Δ5$1ॲཧΛҰ࣌ఀࢭ͢Δ ‣
Φϑϩʔυޙʹ04ΞϓϦέʔγϣϯ͔Β/*$ͷϦΫΤετΛதܧ͢Δ ‣ 04͕ίωΫγϣϯΛཱ֬͢ΔͨΊɼ04ϙʔτ൪߸ͷ֬อҎ্ͷ੍ޚ ΛͯͨΓɼϧʔςΟϯάͷܾఆ͕Ͱ͖Δ
"SDIJUFDUVSF ‣ /*$&UIFSOFUʹՃ͑ͯιέοτ5$1*1ΛؚΉ ‣ -PPLVQͰड͚औͬͨύέοτʹରԠ͢ΔίωΫγϣϯ͕͋Δ͔Ͳ ͏͔ΛνΣοΫ ‣ ͋Ε/*$্Ͱͯ͢ॲཧ͞ΕΔ ͳ͚Εͦͷ࣌Ͱ04ʹ͞ΕΔ ‣
#ZQBTT04ͷιέοτͱ/*$ͷ ιέοτΛհ͢Δ ‣ -PPLVQ͕ͳ͚Ε/*$্ͷ5$1 ͰνΣοΫ͢ΔͨΊඇޮ
$POOFDUJPO%BUB4USVDUVSF ‣ ϋϯυΦϑͷͨΊͷίωΫγϣϯσʔλߏ ‣ ϋϯυΦϑͰɼ04ͱ/*$ͷ྆ํ͕5$1ॲཧ͢Δ͜ͱ͕͋ΔͨΊɼ5$1ॲཧ ʹඞཁͳσʔλʢ4PDLFUɼ4PDLFU#V⒎FSʣΛ྆ํͰͭ ‣ /*$ʹϙΠϯλΛஔ͘ͱ;FSP$PQZ*0͕ɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹ ༰қʹͳΔͨΊɼ/*$ͷ4PDLFU#V⒎FSɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹ ʹϝϞϦΞυϨεͱσʔλΛஔ͖ɺɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹ
ɹ ɹ ɹ ඞཁͳͱ͖ʹϗετ͔ΒϑΣον͢Δ ‣ /*$ͷϝϞϦۭ͖༰ྔ͕খ͍͞ͱ͖/*$ɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹ ͷ4PDLFU#V⒎FSʹԿஔ͔ͳ͍
&YQFSJNFOUBM.FUIPE ‣ ڥ ‣ ϗετɿ"UIMPO91 ()[ɼ,#-DBDIFɼ%3".(# ‣ ϓϩάϥϚϒϧ/*$ɿίΞɼ.)[ɼ.#43". ‣ ϋϯυΦϑΠϯλϑΣʔευϥΠόͰ࣮
‣ /*$্ͷ5$1*1࣮'SFF#4%ϕʔε ‣ ϗετͷ5$1*1࣮ͷมߋϋϯυΦϑΠϯλϑΣʔεͷݺͼग़͠෦ͷΈ ‣ /*$ͷίΞͷ͏ͪยํϓϩϑΝΠϧͷΈߦ͏ ‣ ࠷େͷ5$1εϧʔϓοτ.CT͕ͩɼ/*$ΛίΞ͑.CT
&YQFSJNFOUBM3FTVMUT $ZDMFT ‣ #ͷσʔλΛίωΫγϣϯΛมԽͤ͞ͳ͕Βଌఆ ‣ /*$ʹΦϑϩʔυ͢Δ͜ͱʹΑΓੑೳ্ʢ੨ʣ ‣ ϋϯυΦϑ࣌ʢʣΦϑϩʔυແ͠ʢʣΑΓੑೳ্ ‣ -Ωϟογϡώοτʹ͍ͭͯಉ༷
ͷ ‣ /*$ʹͯ͢Φϑϩʔυ͢Δͱ͖ ϝϞϦʹΒͳͯ͘ੑೳམͪΔͷͰʣ Cycles Per Packet
$PODMVTJPO ‣ 5$1ॲཧͰϝϞϦੑೳ͕ϘτϧωοΫ ‣ /*$ͷϝϞϦߴͳͨΊɼ/*$ͷΦϑϩʔσΟϯάʹΑΓɼϝϞϦ ʹର͢ΔෛՙΛ؇ ‣ /*$ͷϦιʔεݶΒΕ͍ͯΔͷͰͯ͢ͷίωΫγϣϯΛΦϑϩʔυ ͢Δͱ͔͑ͬͯύϑΥʔϚϯε͕Լ ‣
ίωΫγϣϯϋϯυΦϑʹΑΓɼ04͕ඞཁͳͱ͖ʹίωΫγϣϯΛ /*$ʹͨ͠ΓɼऔΓͨ͠Γ͢Δ͜ͱͰϦιʔεͷόϥϯεΛ੍ޚ ‣ ࣮ݧͷ݁ՌɼϓϩτλΠϓ൛$16αΠΫϧΛݮ ‣ γϛϡϨʔγϣϯ൛ݮ
Yet Another Handoff