APAN 2000 Conference1 Internet Backbone Routing Masaki Hirabaru ISIT, Japan / Merit Network, US

APAN 2000 Conference2 Contents Global Routing over the Internet Backbone 1) Internet Routing Exchanges (IXes) 2) Internet Routing Registries (IRRs) 3) Internet Routing Analysis (incl. IPv6)

APAN 2000 Conference3 Internet Routing Exchanges NAP & RA (Routing Arbiter)

APAN 2000 Conference4 History NSFNET vBNS (MCI) NAP Ameritech, PacBell Sprint, MFS Datanet RA Merit, ISI/USC

APAN 2000 Conference5 Network Access Point (NAP) NAP ＮＡ Ｐ NAP ISP A ISP Z B C ISP RA

APAN 2000 Conference6 RA (RADB) Routing Arbitor (RA) RA January 1997 RSng MAE(2), AADS PacBell, PAIX IPMA NANOG NSF

APAN 2000 Conference7 Merit Route Server Package ISP Route Server Route Server Internet Routing Registry (IRR) Automatic configuration Layer 2 Inter-connect Scalable, reliable routing system for exchange point Performance improvement by separating routing and packet forwarding Easy router configuration Decrease CPU & memory requirements Redundant servers Gathering routing statistics

APAN 2000 Conference8 © Ameritech Route Server at Chicago NAP

APAN 2000 Conference9 Major Public Internet Exchanges (US) AADS NAP (Chicago) ４９ /116 Incl. STARTAP & NGIX-Mid Sprint NAP (New York) MAE-East (Washington DC) ６４ /141 MAE-West (San Jose) (San Jose) ５３ / １ 23 PacBell NAP ( Ｓａｎ Ｆｒａｎｃｉｓｃｏ、 Los Ａｎｇｅｌｅｓ ) ２５ /58 PAIX (Palo Alto) ３０ / １０７ ３０ / １０７ NGIX-East Merit NGIX-West MAE-Central ( Ｄａｌｌａｓ ) /33

APAN 2000 Conference10 Internet Routing Registries RADB (Routing Arbiter Database)

APAN 2000 Conference11 IRR (Internet Routing Registry) RAWHOIS C&W RIPE NCC RADB Customers Europe Other ＩＳＰ s BellCA ANS Route Server (RSng) ISP Statistics (IPMA, etc) Customers

APAN 2000 Conference12 Distributed IRR u As of November 1, 1999, Merit Network, Inc., began charging RADB users a $200 yearly fee per maintainer object. u 37 IRRs are available as of August 1, 2000, mirroring each others. u See

APAN 2000 Conference13 Route Object % whois -h whois.ra.net /24 route: /14 descr:MERIT Network Inc Plymouth Rd Ann Arbor MI , USA origin:AS237 mnt-by:MERIT-MAINT-MCI source:CW

APAN 2000 Conference14 % whois -h whois.ra.net AS237 aut-num:AS237 as-name:MICHNET-ASN descr:MichNet Primary AS Merit Network Inc. import:from AS3561 action pref=100; accept ANY export:to AS3561 announce AS-MICHNET admin-c:JMD24 tech-c:JMD24 mnt-by:MERIT-MAINT-MCI source:CW Routing Policy as-set:AS-MICHNET descr:ASs for which MichNet provides transit service members:AS229, AS237, AS238, AS10792, AS10797, AS17132 remarks: transit ASs of MichNet tech-c:MichNet NOC admin-c:MichNet NOC mnt-by:MERIT-MAINT-MCI source:CW person:MichNet NOC address:Network Operations Center Merit Network Inc Plymouth Road Bldg. 1, Suite 2500 Ann Arbor, MI , USA phone: mnt-by:MERIT-MAINT-MCI source:CW

APAN 2000 Conference15 interface Ethernet0/0 ip address export AS AS interface Ethernet0/0 ip address ! no access-list 100 access-list 100 permit ip access-list 100 permit ip …. access-list 100 permit ip access-list 100 deny ip ! no route-map MyMap_237_1 ! route-map MyMap_237_1 permit 1 match ip address 100 ! router bgp 237 neighbor route-map MyMap_237_1 out RtConfig IRR

APAN 2000 Conference16 Internet Routing Analysis Internet Performance Measurement and Analysis Project (IPMA)

APAN 2000 Conference17 ＭＡＥ－Ｅａｓｔ Global BGP Routing Table Collected by Geoff Huston with Erik-Jan Bos

APAN 2000 Conference18 AS /24 A BGP (Border Gateway Protocol) A B C / / /24 AS /24 A RR /24 WA /24 AS2 R AS1 AS3 AS2 AS1 AS /24 AAS1 AS /24 A AS /24 A /24 W

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APAN 2000 Conference20 Examples of Analysis Reserved or unregistered networks Reserved or unallocated AS numbers Host or un-aggregated networks IRR consistency (ex. origin AS) Instability Availability To subscribe them, send a request to

APAN 2000 Conference Every 15 minutes at MAE-East

APAN 2000 Conference Every 15 minutes at 6bone.merit.edu

APAN 2000 Conference23 Withdraw Convergence

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APAN 2000 Conference25 List of Useful Tools IPv6 Reports and Statistics by CSELT Public Looking Glass (a list available at gglass.html)

APAN 2000 Conference26 List of Related Major Projects IPMA ( by UM and Merit & CAIDA ( Routing Information Service Project by RIPE NCC ( services/np/ris-index.html) International Internet Performance Measurement Project by APAN