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Agenda topics for NANOG 37 - San Jose - June 4-7
by Steve Feldman 09 May '06

09 May '06

Here's the current list of confirmed agenda items for NANOG 37, coming up June 4-7 in San Jose, CA: Sunday, June 4: Newcomer Orientation and Reception, 3:30 - 5:00 p.m. Steering Committee Community Meeting, 5:00 - 7:00 p.m. General Session: Mornings, June 5-7 Managing 100+ Million IP Addresses Alain Durand, Comcast Authentication for TCP-based Routing and Management Protocols Ron Bonica, Juniper Anatomy of Recent DNS Reflector Attacks From the Victim and Reflector Points of Views Frank Scalzo, Versisign Panel: Network Neutrality—What Does It Mean To Operators? Dan Golding, Tier1 Research, moderator Understanding the Network-Level Behavior of Spammers Anirudh Ramachandran and Nick Feamster, Georgia Institute of Technology Research Forum: Pretty Good BGP and the Internet Alert Registry Josh Karlin, University of New Mexico Active Measurement of the AS Path Prepending Method Samantha Lo and Rocky K. C. Chang, Hong Kong Polytechnic University Efficient Internet Routing with Independent ISPs Ratul Mahajan, David Wetherall, and Thomas Anderson, University of Washington/ Microsoft Research Lightning Talks - short talks of immediate interest, sellected on-site Tutorials and BOFs: Afternoons, June 5-6 Disaster Recovery for Customers: Physician, Heal Thyself Level: Introductory/Intermediate Howard Berkowitz MPLS Traffic Engineering Level: Introductory/Intermediate Pete Templin, TexLink Fundamentals of Passive Monitoring Access Level: Introductory/Intermediate Joy Weber, Net Optics BGP Techniques for Service Providers Level: Introductory/Intermediate Philip Smith, Cisco Exchange Operators BOF Moderators: Celeste Anderson, USC, and Joe Abley, ISC BGP Tools BOF Moderators: Dan Massey, Colorado State University Nick Feamster, Georgia Institute of Technology and Lixia Zhang OPSEC Working Group BOF Moderator: Ross Callon, Juniper Peering BOF XII Moderator: William B. Norton, Equinix PGP Key Signing Moderator: Joe Abley, ISC More topics will be announced late this week. Please note that the early registration discount period ends this coming Sunday, May 14, and the discount hotel room block ends on Monday, May 22. As always, current information and links for meeting registration and hotel reservations are available at http://www.nanog.org For the Program Committee, Steve Feldman, chair

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Re: Tier Zero (was Re: Tier 2 - Lease?)
by John Dupuy 05 May '06

05 May '06

At 07:48 AM 5/5/2006, Peter Cohen wrote: >On 5/4/06, Aaron Glenn <aaron.glenn(a)gmail.com> wrote: >> >>On 5/4/06, bmanning(a)vacation.karoshi.com >><bmanning(a)vacation.karoshi.com> wrote: >> > >> > why would anyone do that? >> > >> > --bill >> > >> >>Some companies feel entitled to charging more for their routes than >>they would for simple transit. >> >>aaron.glenn > > >John: >Hopefully this comes out clearly, as writing can be more confusing >than speaking... >Are you getting at Inter AS /SLA/QOS that you would get from transit >vs. best effort peering? Even that has some issues, the one that >jumps out to me is hopefully clearly stick figure-diagrammed below: > >AS#x $--SLA-->Transit ok... >But... >AS#x $--SLA-->Transit <-(second hop)--Customers/Peers---No Qos/SLA---> > >My point is it is hard to do anything beyond the first AS# for any SLA >that you would be paying, since after that the packet switches to no >money packets on a paid connection, pushing out the issue for things >sent down that pipe... > >Peter Cohen It was not about the SLA, although in theory, buying transit should give the provider more incentive to help. The off-list discussion was more about avoiding the dependency problem of peerings. A "good" peering involves multiple points of geographically diverse interconnections. The number and location of these interconnections would depend on the unique combination of architectures of the two peers. If an AS does not have the traffic levels to justify multiple connections into a neighboring AS, relying on a single interconnection point is a problem. Even if the interconnection does not go down, it might not be a good way to reach particular networks in the other AS. Instead, it might be wiser to "tune" traffic via a different neighbor using transit. In other words, it gives you the best of both worlds. Most traffic travels directly to/from the SFP provider that serves the corresponding networks (like a peer). However, one can use the transit option at will for particular routes. And, one can use transit via the other SFPs should any transit to an SFP fail (fiber cut, etc.) Given that transit is pretty cheap, it seems more cost effective, at lower traffic levels, to purchase single transit interconnections to all the SFPs than attempt true peering at a much larger number of interconnections to those same SFPs. This is getting pretty theoretical, but I was curious if such a business model was attempted. The original SAVVIS did this in part long ago, but to just three neighbors. (I think they are now part of C&W now...I can't keep track of all these mergers.) It sounds like Internap is pretty close to this model, although I don't believe they have transit to all nine (if my SFP count is correct). John

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Weekly Routing Table Report
by Routing Analysis Role Account 05 May '06

05 May '06

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 06 May, 2006 Analysis Summary ---------------- BGP routing table entries examined: 187455 Prefixes after maximum aggregation: 103616 Unique aggregates announced to Internet: 91884 Total ASes present in the Internet Routing Table: 22087 Origin-only ASes present in the Internet Routing Table: 19218 Origin ASes announcing only one prefix: 9153 Transit ASes present in the Internet Routing Table: 2869 Transit-only ASes present in the Internet Routing Table: 66 Average AS path length visible in the Internet Routing Table: 3.5 Max AS path length visible: 23 Max AS path prepend of ASN (34527) 16 Prefixes from unregistered ASNs in the Routing Table: 28 Unregistered ASNs in the Routing Table: 6 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 13 Number of addresses announced to Internet: 1531319456 Equivalent to 91 /8s, 70 /16s and 20 /24s Percentage of available address space announced: 41.3 Percentage of allocated address space announced: 59.8 Percentage of available address space allocated: 69.1 Total number of prefixes smaller than registry allocations: 92349 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 39523 Total APNIC prefixes after maximum aggregation: 16521 Prefixes being announced from the APNIC address blocks: 37242 Unique aggregates announced from the APNIC address blocks: 18267 APNIC Region origin ASes present in the Internet Routing Table: 2543 APNIC Region origin ASes announcing only one prefix: 715 APNIC Region transit ASes present in the Internet Routing Table: 390 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 225017824 Equivalent to 13 /8s, 105 /16s and 127 /24s Percentage of available APNIC address space announced: 70.4 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 97040 Total ARIN prefixes after maximum aggregation: 57517 Prefixes being announced from the ARIN address blocks: 71278 Unique aggregates announced from the ARIN address blocks: 26403 ARIN Region origin ASes present in the Internet Routing Table: 10690 ARIN Region origin ASes announcing only one prefix: 4009 ARIN Region transit ASes present in the Internet Routing Table: 986 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 290145792 Equivalent to 17 /8s, 75 /16s and 70 /24s Percentage of available ARIN address space announced: 75.2 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863 ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 37490 Total RIPE prefixes after maximum aggregation: 25049 Prefixes being announced from the RIPE address blocks: 34506 Unique aggregates announced from the RIPE address blocks: 23143 RIPE Region origin ASes present in the Internet Routing Table: 7951 RIPE Region origin ASes announcing only one prefix: 4162 RIPE Region transit ASes present in the Internet Routing Table: 1306 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 20 Number of RIPE addresses announced to Internet: 247766464 Equivalent to 14 /8s, 196 /16s and 157 /24s Percentage of available RIPE address space announced: 77.7 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 11278 Total LACNIC prefixes after maximum aggregation: 3636 Prefixes being announced from the LACNIC address blocks: 9368 Unique aggregates announced from the LACNIC address blocks: 5436 LACNIC Region origin ASes present in the Internet Routing Table: 683 LACNIC Region origin ASes announcing only one prefix: 221 LACNIC Region transit ASes present in the Internet Routing Table: 129 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 23 Number of LACNIC addresses announced to Internet: 26824960 Equivalent to 1 /8s, 153 /16s and 81 /24s Percentage of available LACNIC address space announced: 40.0 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 189/8, 190/8, 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 2119 Total AfriNIC prefixes after maximum aggregation: 893 Prefixes being announced from the AfriNIC address blocks: 1463 Unique aggregates announced from the AfriNIC address blocks: 953 AfriNIC Region origin ASes present in the Internet Routing Table: 154 AfriNIC Region origin ASes announcing only one prefix: 46 AfriNIC Region transit ASes present in the Internet Routing Table: 27 Average AfriNIC Region AS path length visible: 3.4 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC addresses announced to Internet: 4066816 Equivalent to 0 /8s, 62 /16s and 14 /24s Percentage of available AfriNIC address space announced: 12.1 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 1129 7088 221 CHINANET-BACKBONE 4755 913 259 71 Videsh Sanchar Nigam Ltd. Aut 9583 900 109 16 Sify Limited 4766 676 4435 303 Korea Telecom (KIX) 1221 615 1556 471 Telstra Pty Ltd 9498 566 211 67 BHARTI BT INTERNET LTD. 7545 530 124 70 TPG Internet Pty Ltd 17488 501 31 7 Hathway IP Over Cable Interne 17676 486 7029 108 Softbank BB Corp. 9443 450 110 81 Primus Telecommunications 4802 384 81 175 Wantree Development 17849 347 22 113 Telecommunications Technology 18101 338 85 24 Reliance Infocom Ltd Internet 2907 336 1749 312 SINET Japan 17557 329 28 158 Pakistan Telecom 9929 324 221 57 China Netcom Corp. 17974 312 120 29 PT TELEKOMUNIKASI INDONESIA 7474 299 211 229 SingTel Optus Pty Ltd 9800 273 410 67 CHINA UNICOM 9837 265 78 158 Powertel Ltd ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1508 6256 967 AT&T WorldNet Services 4323 1292 733 253 Time Warner Telecom 6197 1007 618 472 BellSouth Network Solutions, 721 1001 21929 303 DLA Systems Automation Center 174 961 5787 907 Cogent Communications 19029 951 151 111 New Edge Networks 18566 937 272 8 Covad Communications 701 923 8009 765 UUNET Technologies, Inc. 2386 877 522 676 AT&T Data Communications Serv 1239 848 2805 600 Sprint 209 709 3595 555 Qwest 19262 695 2089 165 Verizon Global Networks 20115 688 601 369 Charter Communications 22773 658 1745 45 Cox Communications, Inc. 7011 633 217 413 Citizens Utilities 11492 631 87 21 Cable One 852 582 1085 384 Telus Advanced Communications 19916 563 49 54 OLM LLC 855 549 244 63 Canadian Research Network 3602 537 127 109 Sprint Canada, Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 580 1951 456 UUNET - Commercial IP service 3352 310 1612 29 Ibernet, Internet Access Netw 3301 306 1071 292 TeliaNet Sweden 8220 290 474 268 COLT Telecommunications 3320 286 3989 239 Deutsche Telekom AG 680 245 2025 242 DFN-IP service G-WiN 3246 233 504 223 Song Networks 6746 227 89 203 Dynamic Network Technologies, 8708 218 276 201 Romania Data Systems S.A. 24863 207 40 9 LINKdotNET AS number 8551 202 198 24 Bezeq International 3269 198 2134 72 TELECOM ITALIA 3215 196 1662 93 France Telecom Transpac 1257 195 742 169 SWIPnet Swedish IP Network 8866 179 37 16 Bulgarian Telecommunication C 6830 175 765 35 UPC Distribution Services 786 171 1778 171 The JANET IP Service 5400 170 363 139 BT Ignite European Backbone 9121 170 931 27 TTnet Autonomous System 30890 170 15 63 SC Kappa Invexim SRL LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 700 1067 227 UniNet S.A. de C.V. 22047 409 158 11 VTR PUNTO NET S.A. 11172 324 110 84 Servicios Alestra S.A de C.V 16814 317 20 8 NSS, S.A. 6147 262 126 22 Telefonica Del Peru 14117 205 12 6 Telefonica del Sur S.A. 10481 181 72 8 Prima S.A. 7303 163 76 20 Telecom Argentina Stet-France 21826 138 16 21 INTERCABLE 5639 132 12 9 Telecommunications Services o 11556 132 80 4 Cable-Wireless Panama 6503 129 149 78 AVANTEL, S.A. 19169 127 8 20 Telconet 14259 115 10 12 GTD Internet S.A. 23216 110 21 9 RAMtelecom Telecomunicaciones 6505 106 88 78 Global One Communicaoes Ltda 7910 105 7 10 ANDINET ON LINE 19429 103 58 44 E.T.B. 14522 100 13 7 SatNet S.A. 14571 97 25 3 Internet Group do Brasil AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 278 803 233 The Internet Solution 8452 170 60 7 TEDATA 6713 145 135 11 Itissalat Al-MAGHRIB 2018 123 314 104 Tertiary Education Network 5536 121 8 18 Internet Egypt Network 24835 117 50 7 RAYA Telecom - Egypt 33783 105 6 2 EEPAD TISP TELECOM & INTERNET 2905 73 155 66 The Internetworking Company o 20928 57 16 2 Noor Advanced Technologies AS 15475 55 84 4 Nile Online 5713 39 294 35 Telkom SA Ltd 15706 31 8 3 Sudatel Internet Exchange Aut 33774 30 7 20 AS Number for Telecom Algeria 12455 28 6 3 Jambonet Autonomous system 23889 26 8 11 MAURITIUS TELECOM 8524 24 1 4 AUCEGYPT Autonomous System 16637 24 14 22 Johnnic e-Ventures 10798 22 1 13 Standard Bank of South Africa 2561 19 6 2 Egyptian Universities Network 21491 19 17 2 UTL On-line is RF broadband I Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 1292 1039 Time Warner Telecom 18566 937 929 Covad Communications 4134 1129 908 CHINANET-BACKBONE 9583 900 884 Sify Limited 4755 913 842 Videsh Sanchar Nigam Ltd. Aut 19029 951 840 New Edge Networks 721 1001 698 DLA Systems Automation Center 22773 658 613 Cox Communications, Inc. 11492 631 610 Cable One 6197 1007 535 BellSouth Network Solutions, 19262 695 530 Verizon Global Networks 19916 563 509 OLM LLC 5668 532 509 CenturyTel Internet Holdings, 9498 566 499 BHARTI BT INTERNET LTD. 17488 501 494 Hathway IP Over Cable Interne 855 549 486 Canadian Research Network 8151 700 473 UniNet S.A. de C.V. 7545 530 460 TPG Internet Pty Ltd 3602 537 428 Sprint Canada, Inc. 22047 409 398 VTR PUNTO NET S.A. List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 36656 UNALLOCATED 64.18.154.0/24 19318 Albany International 36656 UNALLOCATED 64.20.54.0/24 19318 Albany International 36656 UNALLOCATED 64.20.55.0/24 19318 Albany International 36656 UNALLOCATED 64.20.57.0/24 19318 Albany International 36656 UNALLOCATED 64.20.58.0/24 19318 Albany International 36656 UNALLOCATED 64.20.59.0/24 19318 Albany International 36656 UNALLOCATED 64.20.60.0/24 19318 Albany International 36656 UNALLOCATED 64.20.61.0/24 19318 Albany International 36656 UNALLOCATED 64.20.62.0/24 19318 Albany International 36727 UNALLOCATED 74.128.0.0/15 3356 Level 3 Communicatio 36727 UNALLOCATED 74.130.0.0/16 3356 Level 3 Communicatio 36727 UNALLOCATED 74.131.0.0/16 1239 Sprint 36727 UNALLOCATED 74.132.0.0/16 3356 Level 3 Communicatio 36727 UNALLOCATED 74.133.0.0/17 3356 Level 3 Communicatio 36727 UNALLOCATED 74.133.128.0/18 3356 Level 3 Communicatio 36727 UNALLOCATED 74.134.0.0/15 1239 Sprint 36727 UNALLOCATED 74.136.0.0/16 1239 Sprint 36727 UNALLOCATED 74.137.0.0/18 3356 Level 3 Communicatio 36727 UNALLOCATED 74.137.64.0/20 3356 Level 3 Communicatio 36727 UNALLOCATED 74.137.80.0/20 1239 Sprint 36727 UNALLOCATED 74.137.96.0/20 1239 Sprint 36727 UNALLOCATED 74.137.112.0/20 1239 Sprint 36727 UNALLOCATED 74.137.128.0/17 3356 Level 3 Communicatio 65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam 24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com 65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam 65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam 65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 183.206.196.0/24 2188 FR-RENATER-ASTER 192.44.0.0/24 5501 Fraunhofer Gesellschaft 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.172.0.0/19 721 DLA Systems Automation Center 223.1.1.0/24 22724 PUNTONET S.A. 223.1.2.0/24 22724 PUNTONET S.A. 223.1.3.0/24 22724 PUNTONET S.A. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:9 /10:9 /11:28 /12:89 /13:199 /14:361 /15:706 /16:8796 /17:3201 /18:5278 /19:11597 /20:13106 /21:11313 /22:14494 /23:15593 /24:101607 /25:380 /26:266 /27:209 /28:61 /29:70 /30:35 /31:0 /32:30 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 920 937 Covad Communications 19029 882 951 New Edge Networks 6197 796 1007 BellSouth Network Solutions, 7018 795 1508 AT&T WorldNet Services 9583 729 900 Sify Limited 4323 636 1292 Time Warner Telecom 11492 622 631 Cable One 2386 597 877 AT&T Data Communications Serv 19916 557 563 OLM LLC 7011 542 633 Citizens Utilities 4766 486 676 Korea Telecom (KIX) 855 424 549 Canadian Research Network 5668 413 532 CenturyTel Internet Holdings, 15270 388 419 PaeTec.net -a division of Pae 1239 385 848 Sprint 702 359 580 UUNET - Commercial IP service 6198 356 507 BellSouth Network Solutions, 6517 356 386 Yipes Communications, Inc. 17849 347 347 Telecommunications Technology 8151 345 700 UniNet S.A. de C.V. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 8:43 12:1634 13:1 15:12 16:3 17:3 18:4 20:43 24:740 25:1 30:2 32:59 38:211 40:54 41:1 44:3 47:6 52:4 55:1 56:3 57:25 58:152 59:188 60:181 61:844 62:764 63:1924 64:3180 65:2203 66:2993 67:600 68:659 69:1484 70:328 71:80 72:688 73:23 74:32 80:797 81:631 82:599 83:385 84:380 85:528 86:390 87:325 88:80 89:172 124:265 125:379 128:172 129:182 130:109 131:318 132:28 133:8 134:158 135:46 136:179 137:71 138:197 139:68 140:465 141:136 142:382 143:163 144:225 145:43 146:325 147:135 148:330 149:187 150:116 151:80 152:64 153:106 154:6 155:196 156:98 157:143 158:162 159:171 160:87 161:72 162:259 163:146 164:180 165:194 166:163 167:244 168:483 169:129 170:332 171:13 183:1 190:59 192:5735 193:3365 194:2600 195:1838 196:844 198:3900 199:3225 200:4433 201:922 202:6599 203:6887 204:3887 205:2080 206:2403 207:2939 208:2077 209:3802 210:1915 211:684 212:1188 213:1477 214:313 215:41 216:4117 217:1172 218:275 219:184 220:655 221:358 222:149 223:3 End of report

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AOL 421 errors
by Matthew Black 05 May '06

05 May '06

We've noticed a surge in 421 e-mail errors from AOL. Message soft bounced for '###(a)aol.com', '4.3.2 - Not accepting messages at this time ('421', [': (DYN:T1) http://postmaster.info.aol.com/errors/421dynt1.html', 'SERVICE NOT AVAILABLE']) []' It seems as though they've tightened down their policies. We're pretty good at preventing spam with our IronPort anti-spam gateways and internal policies. We've also subscribed to their FBL notification service. I'm surprised at the types of messages AOL customers consider as spam. Anything and everything: university admission acceptance notices; instructor class assignments; photos from friends; etc. matthew black california state university, long beach

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Re: Tier Zero (was Re: Tier 2 - Lease?)
by Todd Vierling 05 May '06

05 May '06

On 5/5/06, Peter Cohen <peterattelia(a)gmail.com> wrote: > Hopefully this comes out clearly, as writing can be more confusing > than speaking... > Are you getting at Inter AS /SLA/QOS that you would get from transit > vs. best effort peering? Even that has some issues, the one that > jumps out to me is hopefully clearly stick figure-diagrammed below: > > AS#x $--SLA-->Transit ok... > But... > AS#x $--SLA-->Transit <-(second hop)--Customers/Peers---No Qos/SLA---> > > My point is it is hard to do anything beyond the first AS# for any SLA > that you would be paying, You can't *guarantee* better service once the packet leaves your provider's upstream ASs. However, there are hardware-appliance and connectivity vendors who make it their job to come very close, as long as the far-end network has at least one good, near-end reachable path. That's where the concept of route control (where BGP, with all the modern weighting frills, is not the final arbiter of route decisions) comes into play. Extending that concept, if *both* ends have some sort of route control in place, via the same vendor or not, you're even more likely to get good service quality even if the SFI providers in the middle suck at any given time. (ObAdvertisingSquelch: I have direct involvement in this subject, so I won't discuss vendor names on-list to avoid conflict of interest.) -- -- Todd Vierling <tv(a)duh.org> <tv(a)pobox.com> <todd(a)vierling.name>

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Fiber maps of Minnesota
by Erik Amundson 05 May '06

05 May '06

I work for a company that hosts services out of a datacenter in Minnesota. We're starting to plan the location of our next-generation data center, and we want to know if there is a place where we can get maps of local fiber-optic routes? We would like to see maps from several providers so we can ensure redundant connectivity. Does anyone have any hints as to how I can obtain such information? - Erik Amundson

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Re: Multi ISP DDOS
by Martin Hannigan 05 May '06

05 May '06

At 11:15 AM 5/3/2006, John Levine wrote: > >Uh. Who let the Frog out? > > > >http://www.wired.com/news/technology/internet/0,70798-0.html?tw=rss > .technology > >It's all explained here: > >http://weblog.johnlevine.com/2006/05/03 And this just hit wires with quotes from Renesys and SANS ISC. http://www.infoworld.com/article/06/05/04/78074_HNbluesecurityddos_1.html -M< -- Martin Hannigan (c) 617-388-2663 Renesys Corporation (w) 617-395-8574 Member of Technical Staff Network Operations hannigan(a)renesys.com

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Tier 2 - Lease?
by Robert Sherrard 05 May '06

05 May '06

What make a provider a tier 2, versus a tier 1 provider... Is it possible to determine who a tier 2 (i.e. Cogent) leases fiber from? Rob

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Re: Anyone got numbers on peering vs transit?
by Aleksi Suhonen 05 May '06

05 May '06

Bon soir, } On Fri, 5 May 2006, Aleksi Suhonen wrote: } > A) does not pass a peering relationship } > (i.e. is AS internal or passes through transit connections only) } > B) passes a public peering relationship } > C) passes a private peering relationship Mikael Abrahamsson wrote: } Judging from our perspective (TDC Song) my guesstimate is that we as a } nordic ISP with majority of traffic to/from Swedish customers do: } 50% traffic in Sweden } 25% Nordic (Oslo/Copenhagen/Helsinki) } 10-15% LINX/AMSIX } 10-15% transit I forgot to stress that I'm particularly interested in the ratio between private and public peering. Thanks for a swift response, by the way. :-) -- Aleksi Suhonen / Axu TM Oy Internetworking Consulting Cellular: +358 45 670 2048 World Wide Web: www.axu.fi

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BGP Update Report
by cidr-report＠potaroo.net 05 May '06

05 May '06

BGP Update Report Interval: 21-Apr-06 -to- 04-May-06 (14 days) Observation Point: BGP Peering with AS4637 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS855 53131 4.8% 95.7 -- CANET-ASN-4 - Aliant Telecom 2 - AS7015 29974 2.7% 10.2 -- CCCH-AS2 - Comcast Cable Communications Holdings, Inc 3 - AS4323 13502 1.2% 10.5 -- TWTC - Time Warner Telecom, Inc. 4 - AS15105 11385 1.0% 52.2 -- NETWORKTELEPHONE - Network Telephone Corporation 5 - AS3475 10425 0.9% 386.1 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS 6 - AS33783 10183 0.9% 95.2 -- 7 - AS17974 10139 0.9% 28.0 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA 8 - AS702 9246 0.8% 12.1 -- AS702 MCI EMEA - Commercial IP service provider in Europe 9 - AS15290 8761 0.8% 28.5 -- ALLST-15290 - Allstream Corp. Corporation Allstream 10 - AS577 8300 0.7% 78.3 -- BACOM - Bell Canada 11 - AS9340 8065 0.7% 35.4 -- INDONET-AS-AP INDO Internet, PT 12 - AS14654 7445 0.7% 124.1 -- WAYPORT - Wayport 13 - AS5839 7296 0.7% 304.0 -- DDN-ASNBLK - DoD Network Information Center 14 - AS7552 7044 0.6% 77.4 -- VIETEL-AS-AP Vietel Corporation 15 - AS9121 6665 0.6% 26.3 -- TTNET TTnet Autonomous System 16 - AS14410 6585 0.6% 1317.0 -- DALTON - MCM, Inc., DBA: Internet@Dalton 17 - AS30890 6556 0.6% 38.3 -- EVOLVA Evolva Telecom 18 - AS15611 6357 0.6% 83.6 -- Iranian Research Organisation 19 - AS23918 6278 0.6% 48.7 -- CBB-BGP-IBARAKI Connexion By Boeing Ibaraki AS 20 - AS2669 6251 0.6% 48.8 -- CDAGOVN - Government Telecommunications and Informatics Services TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS7684 4614 0.4% 4614.0 -- SAKURA-A SAKURA Internet Inc. 2 - AS3043 2876 0.3% 2876.0 -- AMPHIB-AS - Amphibian Media Corporation 3 - AS21027 2857 0.3% 2857.0 -- ASN-PARADORES PARADORES Autonomous System 4 - AS14410 6585 0.6% 1317.0 -- DALTON - MCM, Inc., DBA: Internet@Dalton 5 - AS9747 978 0.1% 978.0 -- EZINTERNET-AS-AP EZInternet Pty Ltd 6 - AS27016 945 0.1% 945.0 -- NRC-NET - United States Nuclear Regulatory Commission 7 - AS34378 908 0.1% 908.0 -- RUG-AS Razguliay-UKRROS Group 8 - AS16705 1721 0.1% 860.5 -- STORAGEAPPS - Storage Apps Inc. 9 - AS36565 726 0.1% 726.0 -- COUNTY-OF-MONTGOMERY-PA - County of Montgomery 10 - AS36000 656 0.1% 656.0 -- NHA-ASN1 - Northern Health Authority 11 - AS13436 654 0.1% 654.0 -- STELLATE-CCCLC - Stellate Partners - CCCLC 12 - AS4678 1942 0.2% 647.3 -- FINE CANON NETWORK COMMUNICATIONS INC. 13 - AS23917 1250 0.1% 625.0 -- BRIBIE-NET-AS-AP Bribie Island Net Multihomed, Brisbane 14 - AS16776 2396 0.2% 479.2 -- HOMESTORE-IBS - Homestore.com, Inc 15 - AS26467 426 0.0% 426.0 -- HYPERTEK - HyperTEK Corporation 16 - AS21260 841 0.1% 420.5 -- POSITIVE-INTERNET-UK-AS Positive Internet UK AS 17 - AS25435 1235 0.1% 411.7 -- TELESONIQUE-AS Telesonique 18 - AS10571 1202 0.1% 400.7 -- GEOACCESS-AS - GeoAccess 19 - AS4032 387 0.0% 387.0 -- TASDAC - TASDAC 20 - AS3475 10425 0.9% 386.1 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 59.106.255.0/2 4614 0.3% AS7684 -- SAKURA-A SAKURA Internet Inc. 2 - 209.140.24.0/2 2876 0.2% AS3043 -- AMPHIB-AS - Amphibian Media Corporation 3 - 62.81.240.0/24 2857 0.2% AS21027 -- ASN-PARADORES PARADORES Autonomous System 4 - 61.0.0.0/8 1937 0.1% AS4678 -- FINE CANON NETWORK COMMUNICATIONS INC. 5 - 61.8.114.0/24 1567 0.1% AS9476 -- INTRAPOWER-AS-AP Intrapower 6 - 208.28.80.0/21 1357 0.1% AS7013 -- NETSELECT - Health Sciences Libraries Consortium 7 - 65.119.232.0/2 1342 0.1% AS14410 -- DALTON - MCM, Inc., DBA: Internet@Dalton 8 - 205.160.25.0/2 1337 0.1% AS14410 -- DALTON - MCM, Inc., DBA: Internet@Dalton 9 - 208.46.29.0/24 1337 0.1% AS14410 -- DALTON - MCM, Inc., DBA: Internet@Dalton 10 - 65.174.4.0/23 1286 0.1% AS14410 -- DALTON - MCM, Inc., DBA: Internet@Dalton 11 - 207.43.166.0/2 1283 0.1% AS14410 -- DALTON - MCM, Inc., DBA: Internet@Dalton 12 - 203.25.67.0/24 1243 0.1% AS23607 -- ITXPRESS-AS-AP itXpress Pty Ltd. Network AS ISP and DSL 13 - 205.70.0.0/24 1238 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS AS5237 -- DODNIC - DoD Network Information Center 14 - 205.70.9.0/24 1236 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS AS5237 -- DODNIC - DoD Network Information Center 15 - 205.70.8.0/24 1236 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS AS5237 -- DODNIC - DoD Network Information Center 16 - 205.70.7.0/24 1236 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS AS5237 -- DODNIC - DoD Network Information Center 17 - 205.70.10.0/24 1234 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS AS5237 -- DODNIC - DoD Network Information Center 18 - 205.70.12.0/24 1203 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS AS5237 -- DODNIC - DoD Network Information Center 19 - 205.70.1.0/24 1168 0.1% AS3475 -- LANT-AFLOAT - NCTAMS LANT DET HAMPTON ROADS AS5237 -- DODNIC - DoD Network Information Center 20 - 203.25.73.0/24 1127 0.1% AS4854 -- NETSPACE-AS-AP Netspace Online Systems Details at http://bgpupdates.potaroo.net ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org ausnog(a)ausnog.net

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