The Internet の仕組み ~ISPの作り方~

Slide 1

Slide 1 text

The Internet ͷ࢓૊Έ ~ISPͷͭ͘Γ͔ͨ~ ͘͞ΒΠϯλʔωοτגࣜձࣾ ߐ૲ཅଠ Home NOC Operators’ Group (AS59105) @chibiegg ୈ48ճ ৘ใՊֶएखͷձ 2015-09-20

Slide 2

Slide 2 text

ͨ͜·͝!DIJCJFHH ܦྺ  େࡕେֶ޻ֶ෦ଔ޻ֶݚڀՊதୀ  ͘͞ΒΠϯλʔωοτ  ݸਓࣄۀओ  ɹɾిࢠճ࿏ͷઃܭɾϑΝʔϜ΢ΤΞͷ։ൃ  ɹɾۀ຿γεςϜͷ։ൃ 8FCϝΠϯ   ɹɾاۀͷΠϯϑϥߏங    ͦͷଞ  ϩϘΧοϓδϡχΞɾ/),େֶϩϘίϯ  /8c%#c4$ εϖγϟϦετ ฽هࡾڃ  4&$$0/$5'౳.S5BLFEB  ޷͖ͳϝʔΧʔ͸:".")" +VOJQFS $JTDP  4PGUXBSF%FTJHOɾ݄߸ ͓ͱͳϥζύΠϦϨʔ

Slide 3

Slide 3 text

ͨ͜·͝!DIJCJFHH ͘͞ΒΠϯλʔωοτ  ϓϥοτϑΥʔϜࣄۀ෦αʔϏε։ൃνʔϜ    "1*c%#c੍ޚγεςϜ ୲౰  ιϑτ΢ΤΞΤϯδχΞ  1ZUIPO%KBOHPେ޷͖ )PNF/0$0QFSBUPST`(SPVQ "4   ؂ࢹγεςϜɾ؅ཧγεςϜ։ൃ  ͘͞ΒͱͷτϥϯδοτͷίϯϑΟάͱ͔΋  +1/*$্ӡӦҕһܦཧ୲౰

Slide 4

Slide 4 text

஫ҙࣄ߲ • ৬ۀωοτϫʔΫΤϯδχΞͰ͸͋Γ·ͤΜ • ݫີͰ͸͋Γ·ͤΜ • AS59105Ҏ֎ͷ૊৫΍ߏ੒͸ΠϝʔδͰ͢

Slide 5

Slide 5 text

Πϯλʔωοτͬͯͳʹʁ • ՈిྔൢళͰചͬͯΔ΍ͭʁ  ˠ ਃ͠ࠐΈ͸͢Δ͚Ͳɺ࣋ͬͯ͸ؼΒͳ͍ • NTTͷϑϨοπͷ͜ͱʁ  ˠ ϑϨοπޫ͚ͩΛܖ໿ͯ͠΋  ɹ ɹɹɹɹɹΠϯλʔωοτ͸࢖͑ͳ͍ ϞϊͰ͸ͳ͍ʁ

Slide 6

Slide 6 text

The Internet • IPωοτϫʔΫΛ࣋ͭ૊৫ͷू߹ମ • ੈքதͱͭͳ͕Δͱ͍͏͜ͱ͸ੈքͰҰͭ • ઀ଓͨ࣌͠఺Ͱࣗ਎΋The InternetͷҰ෦

Slide 7

Slide 7 text

The Internet Tier 1 Tier 2 ɾɾɾ ɾɾɾ Tier 3 ͍Ζ͍Ζলུ

Slide 8

Slide 8 text

ϐΞϦϯάͱτϥϯδοτ • τϥϯδοτ (ϑϧϧʔτΛఏڙ͢Δ)  ɹ্Լؔ܎/جຊతʹྉۚΛ෷͏ • ϐΞϦϯά (͓ޓ͍ͷܦ࿏͚ͩަ׵͢Δ)  ɹ࣮අͷΈͷ৔߹͕ଟ͍

Slide 9

Slide 9 text

The Internet Tier 1 Tier 2 ɾɾɾ ɾɾɾ Tier 3 ϐΞϦϯά ͋͘·Ͱ΋ΠϝʔδͰࣄ࣮ͱ͸ҟͳΓ·͢

Slide 10

Slide 10 text

http://www.slideshare.net/yuyarin/ss-39061287

Slide 11

Slide 11 text

ISP͸Կͯ͠Δͷʁ • ଞͷISPͱ஥ྑ͘͢Δ͜ͱ (େࣄ) • ͞Βʹͦͷ্ͰαʔϏεΛఏڙ͢Δ͜ͱ The Internet΁ͷ઀ଓੑΛఏڙ͢Δ͜ͱ

Slide 12

Slide 12 text

ීஈͷۀ຿ • αʔϏεͷ։ൃ͸͢Δ͚Ͳɺ  ɹɹɹɹɹɹɹɹɹ઀ଓੑʹؔͯ͠͸͓·͔ͤ • ࢭΊΔ͜ͱ͸ڐ͞Εͳ͍ͷͰɺ  ɹɹɹɹɹɹɹɹɹ௅ઓతͳ࣮ݧ͕Ͱ͖ͳ͍ • ϥϘͰ͸࣮ݧͰ͖Δ͚ͲɺτϥϑΟοΫ͸ྲྀΕͳ͍ • ISPΛҰ͔Β࡞Δ͜ͱ͸ීஈͰ͖ͳ͍

Slide 13

Slide 13 text

࣮ՈαʔόϧʔϜ ΍ͬͺΓ઀ଓੑʹؔͯ͠͸ISPґଘ…

Slide 14

Slide 14 text

Home NOC Operators’ Group • ࡞Βͳ͍ͱΘ͔Βͳ͍͜ͱ΋͋Δ͸ͣ • ଞͷASͱަྲྀͰ͖Δ • Ұ౓͸ASӡ༻͍ͨ͠ΑͶʁ • The Internetʹͭͳ͕ΔॠؒͬͯυΩυΩ͢Δʂ ࣮༻ʹ଱͑͏ΔASΛઃܭɺߏங͠ɺ೔ʑӡ༻͢Δ  ΈΜͳͰ৮ͬͯɺָ͠Έͳ͕Βษڧ͢Δ

Slide 15

Slide 15 text

ISPʹඞཁͳϞϊ • IPΞυϨε • AS൪߸ • ػࡐ  ɹϧʔλɾճઢɾ৔ॴ • AS59105ɹ • 103.48.31.0/24 • 2001:df2:c00::/48 2015೥1݄  JPNICΑΓׂ౰

Slide 16

Slide 16 text

AS59105 ػثߏ੒ Ϙʔμʔ+ίΞ αʔϏεऩ༰ ސ٬౳ NOC NOC ଞAS ଞAS ※ϘʔμʔͱίΞ͸෼͚Δͷ͕Ұൠత

Slide 17

Slide 17 text

AS59105 ڌ఺ߏ੒

Slide 18

Slide 18 text

ϧʔςΟϯάςʔϒϧ 2ASͱͭͳ͍ͩΒ… σϑΥϧτήʔτ΢ΤΠ͕2ͭͰ… AS಺ͷܦ࿏͕͍͔ͭ͋͘Δ͔Β…  10ܦ࿏͙Β͍͔ͳʁ

Slide 19

Slide 19 text

ϧʔςΟϯάςʔϒϧ 563237ܦ࿏ʂ ※ ੢৽॓DCίΞϧʔλ 2015-09-19 17:22:00 ࣌఺ ख࡞ۀͰܦ࿏ొ࿥Ͱ͖Δ͸ͣͳ͍ʂ

Slide 20

Slide 20 text

ϧʔςΟϯάϓϩτίϧ ࣗ෼͕஌ͬͯΔܦ࿏Λަ׵͠  ࣗಈͰϧʔςΟϯάςʔϒϧΛ࡞Δ

Slide 21

Slide 21 text

ϧʔςΟϯάϓϩτίϧ BGP  ASؒ (ͲͷϘʔμʔϧʔλ͔Βग़Δ͔)  OSPF  AS಺ (Ϙʔμʔϧʔλ·ͰͲ͏΍ͬͯߦ͔͘)

Slide 22

Slide 22 text

ϧʔςΟϯάઃܭ͕ॏཁ ίετ  τϥϯδοτΛආ͚ΔɾఆֹΛ௒͑ͳ͍Α͏ʹ ᫔᫓  ڧ͍ASͱͷճઢ͹͔Γʹ৐ͤͳ͍Α͏ʹ ੓࣏తཧ༝  ௨ͨ͘͠ͳ͍ASͱ͔ɾࠃՈؒͷ໰୊ͱ͔

Slide 23

Slide 23 text

BGP Local Preference  ࣗ෼Ͱ͚ͭΔɾߴ͍΋ͷ༏ઌ AS Path  ్தͲͷASΛ௨Δ͔ɾ୹͍΋ͷ༏ઌ MED  ૬ख͕͚ͭͯૹΔɾখ͍͞΋ͷ༏ઌ 173.194.117.0/24 *[BGP/170] 3d 22:38:49, MED 1000, localpref 310, from 103.48.31.2 AS path: 17686 15169 I, validation-state: unverified > to 103.48.31.121 via ge-0/0/3.102 [BGP/170] 1w3d 07:21:18, MED 1000, localpref 200 AS path: 9370 15169 I, validation-state: unverified > to 210.188.225.233 via ge-0/0/0.0 ༏ઌ౓ߴ

Slide 24

Slide 24 text

Local Preference • ϐΞϦϯάΛ༏ઌ • ΞΫςΟϒελϯόΠ • ·ͩ༨༟ͷ͋ΔτϥϯδοτΛ༏ઌ ྫ 59105ࣗ਎ͷܦ࿏ 350 ւ֎ͷϓϥΠϕʔτPeer 310 ࠃ಺ͷϓϥΠϕʔτPeer 300 ࠃ಺͔ΒͷTransit 200

Slide 25

Slide 25 text

AS Path • ࣗ਎ͷAS൪߸Λͨ͘͞Μ͚ͭΔ (AS Prepend)  ɹ→Ͱ͖Δ͚ͩ࢖ΘΕͳ͍Α͏ʹͳΔ AS path: 59105 9370 15169 AS path: 59105 59105 59105 59105 9370 15169 AS15169ѼͷτϥϑΟοΫΛ͏ͪʹ౤͛ʹ͘͘ͳΔ

Slide 26

Slide 26 text

Multi Exit Discriminator • ASͱASͷؒʹෳ਺ͷ઀ଓ͕͋Δͱ͖ʹར༻ • ܦ࿏޿ࠂ͢Δଆ͕ܾΊΔ AS59105 AS9370 100→ ←200 200→ ←100 ઀ଓ఺͕1ͭͩͱҙຯͳ͍Α̇

Slide 27

Slide 27 text

BGP Local Preference  ࣗ෼Ͱ͚ͭΔɾߴ͍΋ͷ༏ઌ AS Path  ్தͲͷASΛ௨Δ͔ɾ୹͍΋ͷ༏ઌ MED  ૬ख͕͚ͭͯૹΔɾখ͍͞΋ͷ༏ઌ ༏ઌ౓ߴ ओʹ͜ͷࡾͭΛ͔ͭͬͯτϥϑΟοΫͷྲྀΕΛ੍ޚ

Slide 28

Slide 28 text

BGP Community • ܦ࿏ʹෳ਺ͷ໨ҹΛ͚ͭɺ੍ޚ͕Մೳ  (ྫ) ւ֎ͷܦ࿏͸·ͱΊͯ࠶޿ࠂ͢Δ • Communityผʹ౷ܭΛऔΔͱ͖ʹ΋࢖͑Δ ྫ 59105ࣗ਎ͷܦ࿏ 59105:100 59105-SPECIFIC ւ֎ͷϓϥΠϕʔτPeer 59105:400 PEER-ABROAD ࠃ಺ISPͷϓϥΠϕʔτPeer 59105:300 PEER-ISP ࠃ಺ISPҎ֎ͷϓϥΠϕʔτPeer 59105:310 PEER-xSP ࠃ಺͔ΒͷTransit 59105:200 TRANSIT-DOMESTIC ࠃ಺͔ΒͷTransit(BIGLOBE) 59105:201 TRANSIT-DOMESTIC-AS2518 ࠃ಺͔ΒͷTransit(SoftEther) 59105:202 TRANSIT-DOMESTIC-AS59103

Slide 29

Slide 29 text

·ͱΊ • ੈքதͰڠௐಈ࡞͢Δ୯ҰͷγεςϜͬͯ͘͢͝ͳ͍ʂʁ • ܦ࿏੍ޚ͓΋͠Ζ͍Α • ࣮ݧ઀ଓαʔϏε։࢝͠·͢ • ϓϥΠϕʔτϐΞϦϯά଴ͬͯ·̇͢ • དྷ೥͸؂ࢹɾӡ༻ܥͷ࿩͠Α͏͔ͳʁ