ISP

1
???????????2?

• ISP

2
????????????!?

• ???????????
• ????????????????????
• ???????????
• ???????IX
• ??????Local Peer
• ??????????????

3
??????????????
4
NSF Backbone 93
5
International Connectivity 94
6
Internet Connectivity 97
7
???????

• 109,574,429? (2001?1???)?11??

Number of Hosts advertised in the DNS (world)
8
???????????

• 2001?10???(JPNIC??)

9
???IP????????
10
ISP?????????

• 70???? ARPANET
• ??????????????
• 80???? CSNETNFSNET
• ???????????
• 80???? JUNET
• ?????UUCP??????????
• 80???? WIDE
• ??IP????????
• 90???? WIDESINETTISN
• ??????????
• 93? ? ??ISP ????

11
93?ISP??????

• IIJ,InfoWeb,JEANS??????
• ?????
• ???????64Kbps
• UUCP????????????
• ??????
• 1.5Mbps
• ????192Kbps

12
IIJInternet Initiative Japan??

• ?????1992?12?3?
• ????469?(2001?3???)
• ???7,082,336,000? (?70??)
• ??
• ?????????
• ????????
• NTT??????????????
• ?

13
IIJ???

• 1992?12? ?????????????????????? (???18???)
• 1993?5? ???(??????????????????)???
• 7? UUCP??????
• 8? ???1?????
• 11? ???????????????
• 1994?2? ???????????????6????6?????
• 1996?1? ???7?5??????
• 1997?9? ????????????????????
• 1998?2? ???11?????4?IIJ???????
• 10? ??????????? ????????????
• 1999?8? ??????????????????????? (NASDAQIIJI)
• 8? ???7,082??????
• 2000?8? ???????????????????????????????????
  (NASDAQCWCI)

14
????????ISP

• ????
• ??????
• 18??(24??)?????????????2????
• ??????????
• ??????4?
• ???
• ????????,??????
• ??????????3???????

15
NSPIXP-2?????????? 1996??2001??
16
NSPIXP-2???????Traffic b exp(a year),
where a is 0.657
17
?????????????ISP??????????

• ??????????
• ???????
• 300-gt2400-gt9.6K-gt32K-gt54Kbps
• ????
• ISDN
• ????
• ADSL(640K -gt 1.5M -gt 8M(AnnexC))
• xDSL (ADSL-gtSDSL-gtVDSL)
• PPPoE
• ???????
• ????
• 64Kbps -gt 1.5Mbps(T.1) -gt45Mbps(T.3)-gt
• 155Mbps(OC-3)-gt622Mbps(OC-12)-gt2.4G(OC-48)-gt9.6G(O
  C192)

?????10??????
ISP????????3?? ???????
18
IIJ????????

• 1994?3? 192Kbps Tokyo-UUNET
• 1994?7? 768Kbps Tokyo-UUNET
• 1995?3? 1.5Mbps Tokyo-UUNET
• 1995?7? 1.5Mbsp Tokyo-MEA-WEST
• 1995?11? 4.5Mbps Tokyo-MEA-west
• 1996?2? 45Mbps Tokyo-MAE-West
• 1996?7? 45Mbps Osaka-NY-Nap
• 1997?5? 45Mbps Tokyo-PAIX
• 1997?8? 155Mbps Tokyo-PAIX
• 1999?1? 90Mbps Osaka-NY-NAP
• 1999?2? 200Mbps Tokyo-MAE-WEST
• 1999?4? 155Mbps Tokyo-Mawest
• 1999?4? 155Mbps Osaka-NY-NAP
• 1999?6? 310Mbps Tokyo-PAIX
• 2000?3? 465Mbps Tokyo-PAIX
• 2000?7? 775Mbps Tokyo-PAIX
• 2001?2? ?????
• 2001?6? 600Mbps(STM4c) ???MEA-WEST

19
IIJ??????
20
IIJ Backbone
21
IIJ?????

• ?????
• 1Q2001 8.67??
• 4Q2000 14.07??
• 1Q2000 14.33??
• International backbone costs decreased 39.5 from
  1Q00 to JPY867 million in 1Q01, and by 38.4 from
  4Q00. These decreases on both a year-over-year
  and sequential basis reflect the sharp reduction
  of Japan-US backbone lines cost. Monthly unit
  backbone cost declined by approximately 65 in
  the year-over-year comparison and by
  approximately 39 in the quarter-over-quarter
  comparison.
• From IIJ Announces Financial Results for the 1st
  Quarter Ended June 30, 2001
• - Positive Operating Income Forecasted For the
  Fiscal 2001
• ?????
• 1Q2001 7.74??
• 4Q2000 7.14??
• 1Q2000 5.77??

22
????????

• ?????????????
• ?????????????????????????

23
NSPIXP-2????????????
24
??????ISP???
?
?
ISP (IIJ)
ISP (IIJ)
?? ????? (KDD)
?? ????? (NTT)
?? ????? (NTT)
?? ????? (KDD)
0?
25
???????????

• ??????????ISP?
• ????????
• ???,????!?

26
???????????????

• ????????
• ??????
• Peer?Transit
• Tier 1
• NTTC?Verio?55??????

27
Qwest OC192 IP Backbone
28
OCN Backbone