April 2008 - Test - lists.nanog.org

Microsoft building container based datacenter
by Simon Lyall 05 Apr '08

05 Apr '08

Just a followup to the previous conversations on power and rack density I see that Microsoft has announced that one floor of their new Chicago datacenter will be container based. Each 40 foot container will house 1,000 to 2,000 systems with between 150 and 220 containers on the first floor. Main links: http://www.datacenterknowledge.com/archives/2008/Apr/01/microsoft_embraces_… http://datacenterlinks.blogspot.com/2008/04/miichael-manos-keynote-at-data-… http://mvdirona.com/jrh/perspectives/2008/04/02/FirstContainerizedDataCente… Related link: http://www.datacenterknowledge.com/archives/2008/Apr/04/microsofts_198_mega… -- Simon J. Lyall | Very Busy | Web: http://www.darkmere.gen.nz/ "To stay awake all night adds a day to your life" - Stilgar | eMT.

1 0

Re: "Does TCP Need an Overhaul?" (internetevolution, via slashdot)
by Paul Ferguson 05 Apr '08

05 Apr '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -- "Christopher Morrow" <morrowc.lists(a)gmail.com> wrote: >I suppose he could try to sell it... and people with larger networks >could see if keeping state on a few million active flows per device is >'expensive' or 'inexpensive'. Perhaps it's less expensive than it >seems as though it would. I like & respect Larry, etc., but actually, he is trying to "sell it" in a semi-disingenuous way: http://www.anagran.com/company_management.php See also: http://www.networkworld.com/news/2007/080607-roberts-fast-flow-routing.html - - ferg -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 9.6.3 (Build 3017) wj8DBQFH9xCaq1pz9mNUZTMRAmSBAJ9FTHV/mWnZXcNR6drkqktdn+3DJACg6gaX 8/TN08qfaXCJrEhwhw0/ybw= =Mr08 -----END PGP SIGNATURE----- -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(at)netzero.net ferg's tech blog: http://fergdawg.blogspot.com/

1 0

120+ km long haul 1GE
by user user 04 Apr '08

04 Apr '08

Hi all! I've been looking at long haul (120+ km) options for repeaterless 1GE. Since these are not your garden variety optics, I'd appreciate any insights or recommendations. - Zed ____________________________________________________________________________________ You rock. That's why Blockbuster's offering you one month of Blockbuster Total Access, No Cost. http://tc.deals.yahoo.com/tc/blockbuster/text5.com

1 0

re: rack power question, and a prediction about "direct heat removal" (DHR)
by Patrick Giagnocavo 04 Apr '08

04 Apr '08

First, I would like to thank everyone who responded to my initial query. It seems that power and how to remove the resulting heat, is certainly on a lot of people's minds. Clearly the days of "including" power are past in all but sales and marketing materials. There is a cost to each component and markup is applied (if internally and not broken out to the customer) on each rack, each power circuit, etc. with covering the overhead of UPS, diesel generator, chillers, etc. being a big priority. After some thought, I believe, to coin a term, that "DHR" or direct heat removal, in some fashion will be the "new" thing for the datacenter. Somewhat counter-intuitively, the focus will be to remove the heat that comes out the back of the rack rather than worrying so much about the temperature of the air going in the front as long as it falls in a generally acceptable range of say, 68-75F. My guess is that someone will come up with an inexpensive, reliable way to put a heat collector, which will basically look like a car radiator the size of a rear rack door, directly behind the hot air coming from the systems in the rack. Hot air flows past the cooling fins and is quickly cooled back to 68F; the heated refrigerant is immediately piped away, out of the room and to the chiller, so that the evil BTUs do not spread out and contaminate other areas of the room. It might involve a phase change material, or might involve a more traditional refrigerant. My money would be on R744, also known as CO2, as it is not polluting and can serve double duty as fire suppression (provided you have enough on hand to flood the area/room). Detectors for leaks are very inexpensive and the technology for the closed-loop of the refrigerant cycle is already here. It is not caustic the way any of the salts-based variants would be, is not explosive, and is heavier than regular air, meaning it will sink below the area that most people breathe at should there be a small leak. With the heat being removed within a few inches of where it is generated, less CRAC units will be needed to keep the rest of the air cooled; and possibly, no separate unit would be needed if enough heat can be removed to drop the temperature below 68F. For fire suppression, an alarm would sound and only when it can in some fashion be "proven" that no humans are inside the area, CO2 is flooded into the area and the fire goes out. Some form of ducting which mixes the CO2 with regular air and exhausts it is needed after the fire is out. Firemen go in with oxygen if they need to enter before this is done. (obviously there would be an entire tested procedure for how this is done, probably including a small oxygen mask with ~4 minutes of O2 placed beside each fire extinguisher and within easy reach). (For racks with less than say 4KW of power use, network and power is fed from overhead with a few feet of slack in the cables, as well as a portion of the DHR piping being flexible tubing. This allows them to be placed more closely together than normal, almost front to back to front to back, with enough slack to pulled the wheeled racks "out" from the stack so it can be worked on (sort of like pulling a book out of a bookshelf). They use far less space and are sold a little cheaper by the colo facility.) Surely there is a limit as to how much air can be moved around, even with the use of best practices, there are hot spots. Simple physics dictates that this is a less energy intensive cooling method as a) moving a lot of air around requires a lot of energy b) air is a lousy way to transfer heat away from where you want it to be compared to other materials. Cordially Patrick Giagnocavo patrick(a)zill.net

5 4

Weekly Routing Table Report
by Routing Analysis Role Account 04 Apr '08

04 Apr '08

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 For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 05 Apr, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 251663 Prefixes after maximum aggregation: 126431 Deaggregation factor: 1.99 Unique aggregates announced to Internet: 122544 Total ASes present in the Internet Routing Table: 27824 Prefixes per ASN: 9.04 Origin-only ASes present in the Internet Routing Table: 24255 Origin ASes announcing only one prefix: 11268 Transit ASes present in the Internet Routing Table: 3569 Transit-only ASes present in the Internet Routing Table: 80 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 18 Max AS path prepend of ASN (43380) 13 Prefixes from unregistered ASNs in the Routing Table: 24961 Unregistered ASNs in the Routing Table: 1890 Number of 32-bit ASNs allocated by the RIRs: 47 Prefixes from 32-bit ASNs in the Routing Table: 8 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 850 Number of addresses announced to Internet: 1856218272 Equivalent to 110 /8s, 163 /16s and 164 /24s Percentage of available address space announced: 50.1 Percentage of allocated address space announced: 61.5 Percentage of available address space allocated: 81.4 Percentage of address space in use by end-sites: 71.1 Total number of prefixes smaller than registry allocations: 120069 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 42554 Total APNIC prefixes after maximum aggregation: 13541 APNIC Deaggregation factor: 3.14 Prefixes being announced from the APNIC address blocks: 54788 Unique aggregates announced from the APNIC address blocks: 23781 APNIC Region origin ASes present in the Internet Routing Table: 1917 APNIC Prefixes per ASN: 28.58 APNIC Region origin ASes announcing only one prefix: 552 APNIC Region transit ASes present in the Internet Routing Table: 351 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 339369312 Equivalent to 20 /8s, 58 /16s and 93 /24s Percentage of available APNIC address space announced: 77.8 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 107122 Total ARIN prefixes after maximum aggregation: 58976 ARIN Deaggregation factor: 1.82 Prefixes being announced from the ARIN address blocks: 85863 Unique aggregates announced from the ARIN address blocks: 34029 ARIN Region origin ASes present in the Internet Routing Table: 11687 ARIN Prefixes per ASN: 7.35 ARIN Region origin ASes announcing only one prefix: 4545 ARIN Region transit ASes present in the Internet Routing Table: 1038 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 361937024 Equivalent to 21 /8s, 146 /16s and 184 /24s Percentage of available ARIN address space announced: 74.4 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, 39936-40959 ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 53958 Total RIPE prefixes after maximum aggregation: 33261 RIPE Deaggregation factor: 1.62 Prefixes being announced from the RIPE address blocks: 49136 Unique aggregates announced from the RIPE address blocks: 32912 RIPE Region origin ASes present in the Internet Routing Table: 11137 RIPE Prefixes per ASN: 4.41 RIPE Region origin ASes announcing only one prefix: 5813 RIPE Region transit ASes present in the Internet Routing Table: 1699 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 351438208 Equivalent to 20 /8s, 242 /16s and 133 /24s Percentage of available RIPE address space announced: 80.6 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 40960-45055 RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 19456 Total LACNIC prefixes after maximum aggregation: 4866 LACNIC Deaggregation factor: 4.00 Prefixes being announced from the LACNIC address blocks: 17825 Unique aggregates announced from the LACNIC address blocks: 9667 LACNIC Region origin ASes present in the Internet Routing Table: 885 LACNIC Prefixes per ASN: 20.14 LACNIC Region origin ASes announcing only one prefix: 279 LACNIC Region transit ASes present in the Internet Routing Table: 152 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 50249728 Equivalent to 2 /8s, 254 /16s and 192 /24s Percentage of available LACNIC address space announced: 49.9 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 3611 Total AfriNIC prefixes after maximum aggregation: 1119 AfriNIC Deaggregation factor: 3.23 Prefixes being announced from the AfriNIC address blocks: 4007 Unique aggregates announced from the AfriNIC address blocks: 1805 AfriNIC Region origin ASes present in the Internet Routing Table: 234 AfriNIC Prefixes per ASN: 17.12 AfriNIC Region origin ASes announcing only one prefix: 79 AfriNIC Region transit ASes present in the Internet Routing Table: 45 Average AfriNIC Region AS path length visible: 3.7 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 10136064 Equivalent to 0 /8s, 154 /16s and 170 /24s Percentage of available AfriNIC address space announced: 30.2 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 4755 1624 387 88 Videsh Sanchar Nigam Ltd. Aut 9583 1157 129 191 Sify Limited 9498 1145 550 61 BHARTI BT INTERNET LTD. 17488 1010 68 84 Hathway IP Over Cable Interne 4134 858 12663 320 CHINANET-BACKBONE 4766 851 6005 341 Korea Telecom (KIX) 18101 674 126 53 Reliance Infocom Ltd Internet 9829 595 450 12 BSNL National Internet Backbo 4812 562 969 92 China Telecom (Shanghai) 1221 542 1950 418 Telstra Pty Ltd Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1438 5945 1020 AT&T WorldNet Services 4323 1405 1028 368 Time Warner Telecom 2386 1386 657 848 AT&T Data Communications Serv 11492 1211 145 48 Cable One 7011 1085 316 619 Citizens Utilities 18566 1044 296 10 Covad Communications 1785 1001 479 107 AppliedTheory Corporation 6197 991 730 478 BellSouth Network Solutions, 174 964 6834 807 Cogent Communications 20115 920 872 510 Charter Communications Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 3292 400 1787 364 TDC Tele Danmark 8452 359 188 7 TEDATA 3301 337 1443 306 TeliaNet Sweden 3320 326 7045 270 Deutsche Telekom AG 5462 292 666 26 Telewest Broadband 8866 292 78 24 Bulgarian Telecommunication C 8551 279 267 42 Bezeq International 3215 278 2671 91 France Telecom Transpac 6746 267 127 244 Dynamic Network Technologies, 680 259 2046 258 DFN-IP service G-WiN Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1192 2449 221 UniNet S.A. de C.V. 11830 555 299 9 Instituto Costarricense de El 22047 553 270 14 VTR PUNTO NET S.A. 7303 453 220 61 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 11172 409 117 70 Servicios Alestra S.A de C.V 6471 401 85 39 ENTEL CHILE S.A. 10620 399 104 51 TVCABLE BOGOTA 14117 350 23 16 Telefonica del Sur S.A. 10481 310 152 10 Prima S.A. Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 458 61 27 LINKdotNET AS number 3741 287 853 223 The Internet Solution 20858 217 34 3 EgyNet 2018 200 272 110 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 33783 131 9 16 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 33776 99 6 7 Starcomms Nigeria Limited 24835 89 48 7 RAYA Telecom - Egypt 2905 83 176 74 The Internetworking Company o Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 2050 3011 98 bellsouth.net, inc. 23577 1634 34 700 Korea Telecom (ATM-MPLS) 4755 1624 387 88 Videsh Sanchar Nigam Ltd. Aut 7018 1438 5945 1020 AT&T WorldNet Services 4323 1405 1028 368 Time Warner Telecom 2386 1386 657 848 AT&T Data Communications Serv 11492 1211 145 48 Cable One 8151 1192 2449 221 UniNet S.A. de C.V. 9583 1157 129 191 Sify Limited 9498 1145 550 61 BHARTI BT INTERNET LTD. Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4755 1624 1536 Videsh Sanchar Nigam Ltd. Aut 11492 1211 1163 Cable One 9498 1145 1084 BHARTI BT INTERNET LTD. 4323 1405 1037 Time Warner Telecom 18566 1044 1034 Covad Communications 8151 1192 971 UniNet S.A. de C.V. 9583 1157 966 Sify Limited 17676 1018 952 Softbank BB Corp. 23577 1634 934 Korea Telecom (ATM-MPLS) 17488 1010 926 Hathway IP Over Cable Interne Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo! 12180 UNALLOCATED 4.79.248.0/24 1239 Sprint 26478 UNALLOCATED 8.7.228.0/24 6461 AboveNet Communicati 12180 UNALLOCATED 8.10.16.0/24 3549 Global Crossing 12180 UNALLOCATED 8.10.58.0/23 3549 Global Crossing 14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo! 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 22492 UNALLOCATED 12.2.46.0/24 1239 Sprint 15132 UNALLOCATED 12.9.150.0/24 701 UUNET Technologies, 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.51.159.0/24 7843 Adelphia Corp. 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.75.160.0/19 7843 Adelphia Corp. 24.75.192.0/18 7843 Adelphia Corp. 24.142.40.0/21 7018 AT&T WorldNet Services 24.142.160.0/19 7018 AT&T WorldNet Services 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 63.140.213.0/24 22555 Universal Talkware Corporatio Complete listing at http://thyme.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:9 /10:16 /11:41 /12:137 /13:279 /14:501 /15:1004 /16:9831 /17:4353 /18:7330 /19:15307 /20:17626 /21:16834 /22:21410 /23:22378 /24:132287 /25:792 /26:902 /27:481 /28:108 /29:9 /30:1 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 11492 1197 1211 Cable One 2386 1087 1386 AT&T Data Communications Serv 18566 1025 1044 Covad Communications 9583 994 1157 Sify Limited 7011 967 1085 Citizens Utilities 4755 964 1624 Videsh Sanchar Nigam Ltd. Aut 6478 898 899 AT&T Worldnet Services 17488 823 1010 Hathway IP Over Cable Interne 9498 817 1145 BHARTI BT INTERNET LTD. 7018 811 1438 AT&T WorldNet Services Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:9 8:102 12:2000 13:1 15:20 16:3 17:6 18:13 20:35 24:1049 25:1 32:60 33:4 38:409 40:94 41:633 44:2 47:8 52:3 55:3 56:3 57:22 58:517 59:435 60:405 61:984 62:1088 63:1957 64:3391 65:2382 66:3606 67:1126 68:648 69:2128 70:535 71:127 72:1568 73:6 74:921 75:222 76:286 77:625 78:544 79:137 80:890 81:826 82:605 83:367 84:560 85:946 86:396 87:665 88:317 89:1228 90:11 91:1159 92:240 93:234 96:23 97:16 98:112 99:3 112:1 116:586 117:282 118:110 119:370 121:482 122:731 123:313 124:838 125:1109 128:317 129:201 130:125 131:404 132:69 133:9 134:188 135:32 136:221 137:119 138:149 139:65 140:484 141:110 142:380 143:276 144:344 145:50 146:338 147:134 148:499 149:180 150:128 151:172 152:142 153:127 154:11 155:267 156:207 157:261 158:169 159:223 160:244 161:110 162:209 163:195 164:574 165:433 166:298 167:315 168:607 169:131 170:426 171:28 172:3 189:169 190:1667 192:5774 193:4093 194:3256 195:2377 196:1035 198:3769 199:3236 200:5590 201:1383 202:7528 203:7830 204:4012 205:2094 206:2404 207:2722 208:3237 209:3483 210:2527 211:1034 212:1342 213:1660 214:455 215:48 216:4272 217:1233 218:359 219:404 220:1069 221:400 222:313 End of report

1 0

BGP Update Report
by cidr-report＠potaroo.net 04 Apr '08

04 Apr '08

BGP Update Report Interval: 03-Mar-08 -to- 03-Apr-08 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS9498 112594 1.8% 89.4 -- BBIL-AP BHARTI BT INTERNET LTD. 2 - AS24731 86506 1.4% 994.3 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 3 - AS4795 59162 1.0% 262.9 -- INDOSAT2-ID INDOSATM2 ASN 4 - AS9583 59010 0.9% 50.6 -- SIFY-AS-IN Sify Limited 5 - AS9121 57933 0.9% 23.0 -- TTNET TTnet Autonomous System 6 - AS17974 49249 0.8% 73.6 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 7 - AS8151 48905 0.8% 29.9 -- Uninet S.A. de C.V. 8 - AS26829 42926 0.7% 42926.0 -- YKK-USA - YKK USA,INC 9 - AS18306 42194 0.7% 1140.4 -- MASANHANANET-AS-KR HANANET 10 - AS24863 41021 0.7% 89.2 -- LINKdotNET-AS 11 - AS14895 37427 0.6% 12475.7 -- LAWSON-SOFTWARE - Lawson Software 12 - AS8866 35531 0.6% 117.3 -- BTC-AS Bulgarian Telecommunication Company Plc. 13 - AS2386 33265 0.5% 23.2 -- INS-AS - AT&T Data Communications Services 14 - AS22773 33139 0.5% 38.3 -- CCINET-2 - Cox Communications Inc. 15 - AS6306 32375 0.5% 688.8 -- Telcel, C.A 16 - AS23005 31944 0.5% 1996.5 -- SWITCH-COMMUNICATIONS - SWITCH Communications Group LLC 17 - AS11830 30574 0.5% 13.2 -- Instituto Costarricense de Electricidad y Telecom. 18 - AS1239 27747 0.5% 7.3 -- SPRINTLINK - Sprint 19 - AS17487 26930 0.4% 26930.0 -- ICBCASIA-AP Industrial and Commercial Bank 20 - AS4621 26812 0.4% 171.9 -- UNSPECIFIED UNINET-TH TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS26829 42926 0.7% 42926.0 -- YKK-USA - YKK USA,INC 2 - AS17487 26930 0.4% 26930.0 -- ICBCASIA-AP Industrial and Commercial Bank 3 - AS19334 23474 0.4% 23474.0 -- SPORTLINE-DBC - SPORTLINE 4 - AS42787 17891 0.3% 17891.0 -- MMIP-AS MultiMedia IP Ltd. 5 - AS13495 15818 0.3% 15818.0 -- NTT do Brasil Telecomunicaoes Ltda 6 - AS14895 37427 0.6% 12475.7 -- LAWSON-SOFTWARE - Lawson Software 7 - AS21291 11800 0.2% 11800.0 -- OMEGABANK 8 Dragatsaniou str 8 - AS30929 8286 0.1% 8286.0 -- HUTCB Hidrotechnical Faculty - Technical University 9 - AS19017 7981 0.1% 7981.0 -- QUALCOMM-QWBS-LV - Qualcomm Wireless Business Solutions 10 - AS15136 5605 0.1% 5605.0 -- AS-NSPOF - NSPOF Communications Inc 11 - AS44656 5510 0.1% 5510.0 -- HOLOSFIND-ROMANIA HOLOSFIND SRL 12 - AS41907 5180 0.1% 5180.0 -- POLFA PZPF Polfa 13 - AS29225 5158 0.1% 5158.0 -- TAIF-TELCOM-AS JSC TAIF-TELCOM 14 - AS25024 3276 0.1% 3276.0 -- DECEUNINCK-PLASTICS Deceuninck Plastics Autonomous System 15 - AS36975 3151 0.1% 3151.0 -- CBA-AS 16 - AS7257 8755 0.1% 2918.3 -- PREMIERE-GLOBAL-SERVICES-INC - Premiere Global Services, Inc. 17 - AS39105 2758 0.0% 2758.0 -- CLASS-AS SC Class Computers And Service SRL 18 - AS29910 2452 0.0% 2452.0 -- IACP - INTL. ASSN OF CHIEF OF POLICEI 19 - AS40011 2091 0.0% 2091.0 -- 65-79-192-0-SYNIVERSE-CRX - Panhandle Telecommunications Systems, INC. 20 - AS34378 2013 0.0% 2013.0 -- RUG-AS Razgulay Group TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 125.23.208.0/20 57526 0.9% AS9498 -- BBIL-AP BHARTI BT INTERNET LTD. 2 - 12.108.254.0/24 42926 0.7% AS26829 -- YKK-USA - YKK USA,INC 3 - 64.79.128.0/19 31752 0.5% AS23005 -- SWITCH-COMMUNICATIONS - SWITCH Communications Group LLC 4 - 213.91.175.0/24 27626 0.4% AS8866 -- BTC-AS Bulgarian Telecommunication Company Plc. 5 - 220.241.83.0/24 26930 0.4% AS17487 -- ICBCASIA-AP Industrial and Commercial Bank 6 - 203.101.87.0/24 25494 0.4% AS9498 -- BBIL-AP BHARTI BT INTERNET LTD. 7 - 63.169.11.0/24 23474 0.4% AS19334 -- SPORTLINE-DBC - SPORTLINE 8 - 125.57.60.0/24 21655 0.3% AS18306 -- MASANHANANET-AS-KR HANANET 9 - 124.7.192.0/24 20548 0.3% AS9583 -- SIFY-AS-IN Sify Limited 10 - 211.175.148.0/24 19452 0.3% AS18306 -- MASANHANANET-AS-KR HANANET 11 - 221.128.192.0/18 19348 0.3% AS18231 -- EXATT-AS-AP Exatt Technologies Private Ltd. 12 - 202.140.63.0/24 18333 0.3% AS17443 -- ESTELCOM-AP International Internet gateway , India AS9498 -- BBIL-AP BHARTI BT INTERNET LTD. 13 - 193.33.184.0/23 17891 0.3% AS42787 -- MMIP-AS MultiMedia IP Ltd. 14 - 203.63.26.0/24 16533 0.2% AS9747 -- EZINTERNET-AS-AP EZInternet Pty Ltd 15 - 89.4.131.0/24 15900 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 16 - 200.194.64.0/19 15818 0.2% AS13495 -- NTT do Brasil Telecomunicaoes Ltda 17 - 89.4.130.0/24 15290 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 18 - 89.4.128.0/24 15216 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 19 - 84.23.96.0/19 14966 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) AS34400 -- ASN-ETTIHADETISALAT Etihad Etisalat 20 - 64.211.101.0/24 12482 0.2% AS14895 -- LAWSON-SOFTWARE - Lawson Software 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

1 0

The Cidr Report
by cidr-report＠potaroo.net 04 Apr '08

04 Apr '08

This report has been generated at Fri Apr 4 21:14:24 2008 AEST. The report analyses the BGP Routing Table of AS2.0 router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org for a current version of this report. Recent Table History Date Prefixes CIDR Agg 29-03-08 254760 160771 30-03-08 254714 160927 30-03-08 254751 161160 31-03-08 254425 161804 01-04-08 254869 163354 02-04-08 254282 164273 03-04-08 256374 164322 04-04-08 255841 164514 AS Summary 27912 Number of ASes in routing system 11759 Number of ASes announcing only one prefix 1623 Largest number of prefixes announced by an AS AS4755 : VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System 88497920 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 04Apr08 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 256013 164467 91546 35.8% All ASes AS4755 1623 442 1181 72.8% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS9498 1150 69 1081 94.0% BBIL-AP BHARTI BT INTERNET LTD. AS4323 1395 387 1008 72.3% TWTC - Time Warner Telecom, Inc. AS18566 1044 149 895 85.7% COVAD - Covad Communications Co. AS22773 917 146 771 84.1% CCINET-2 - Cox Communications Inc. AS11492 1211 461 750 61.9% CABLEONE - CABLE ONE AS6389 1022 298 724 70.8% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS17488 1010 298 712 70.5% HATHWAY-NET-AP Hathway IP Over Cable Internet AS8151 1192 520 672 56.4% Uninet S.A. de C.V. AS1785 1001 346 655 65.4% AS-PAETEC-NET - PaeTec Communications, Inc. AS6478 899 338 561 62.4% ATT-INTERNET3 - AT&T WorldNet Services AS18101 674 113 561 83.2% RIL-IDC Reliance Infocom Ltd Internet Data Centre, AS2386 1394 858 536 38.5% INS-AS - AT&T Data Communications Services AS6197 988 512 476 48.2% BATI-ATL - BellSouth Network Solutions, Inc AS7011 1083 619 464 42.8% FRONTIER-AND-CITIZENS - Frontier Communications of America, Inc. AS4812 565 104 461 81.6% CHINANET-SH-AP China Telecom (Group) AS4134 857 419 438 51.1% CHINANET-BACKBONE No.31,Jin-rong Street AS7018 1459 1034 425 29.1% ATT-INTERNET4 - AT&T WorldNet Services AS17676 509 88 421 82.7% GIGAINFRA BB TECHNOLOGY Corp. AS6198 729 313 416 57.1% BATI-MIA - BellSouth Network Solutions, Inc AS855 564 154 410 72.7% CANET-ASN-4 - Bell Aliant AS19262 892 491 401 45.0% VZGNI-TRANSIT - Verizon Internet Services Inc. AS5668 683 292 391 57.2% AS-5668 - CenturyTel Internet Holdings, Inc. AS6140 615 231 384 62.4% IMPSAT-USA - ImpSat USA, Inc. AS8103 560 180 380 67.9% STATE-OF-FLA - Florida Department of Management Services - Technology Program AS9443 455 78 377 82.9% INTERNETPRIMUS-AS-AP Primus Telecommunications AS3602 454 81 373 82.2% AS3602-RTI - Rogers Telecom Inc. AS7545 481 117 364 75.7% TPG-INTERNET-AP TPG Internet Pty Ltd AS4808 508 154 354 69.7% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS16814 426 72 354 83.1% NSS S.A. Total 26360 9364 16996 64.5% Top 30 total Possible Bogus Routes 24.38.0.0/17 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 24.48.0.0/13 AS19548 ADELPHIA-AS2 - Road Runner HoldCo LLC 24.51.159.0/24 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 24.54.224.0/19 AS20001 ROADRUNNER-WEST - Road Runner HoldCo LLC 24.75.160.0/19 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 24.75.192.0/18 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 24.142.40.0/21 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.142.160.0/19 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV - Wireless Broadband via Satellite 63.140.213.0/24 AS22555 UTC - Universal Talkware Corporation 63.141.42.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 63.143.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 63.143.115.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 63.248.0.0/16 AS3356 LEVEL3 Level 3 Communications 64.5.64.0/22 AS7228 MCLEOD - McLeod, Inc. 64.5.68.0/24 AS7228 MCLEOD - McLeod, Inc. 64.5.69.0/24 AS7228 MCLEOD - McLeod, Inc. 64.5.70.0/23 AS7228 MCLEOD - McLeod, Inc. 64.5.72.0/24 AS7228 MCLEOD - McLeod, Inc. 64.5.73.0/24 AS7228 MCLEOD - McLeod, Inc. 64.5.74.0/23 AS7228 MCLEOD - McLeod, Inc. 64.5.76.0/22 AS7228 MCLEOD - McLeod, Inc. 64.5.80.0/20 AS7228 MCLEOD - McLeod, Inc. 64.5.96.0/22 AS7228 MCLEOD - McLeod, Inc. 64.5.100.0/23 AS7228 MCLEOD - McLeod, Inc. 64.5.102.0/24 AS7228 MCLEOD - McLeod, Inc. 64.5.103.0/24 AS7228 MCLEOD - McLeod, Inc. 64.5.104.0/21 AS7228 MCLEOD - McLeod, Inc. 64.5.112.0/20 AS7228 MCLEOD - McLeod, Inc. 64.7.112.0/21 AS6453 GLOBEINTERNET Teleglobe America Inc. 64.7.120.0/21 AS6453 GLOBEINTERNET Teleglobe America Inc. 64.50.128.0/18 AS4565 MEGAPATH2-US - MegaPath Networks Inc. 64.64.159.0/24 AS32004 BIG-ASN - Business Information Group, Inc. 64.144.0.0/15 AS4565 MEGAPATH2-US - MegaPath Networks Inc. 64.188.0.0/16 AS3356 LEVEL3 Level 3 Communications 65.36.8.0/24 AS5696 65.36.9.0/24 AS5696 65.36.33.0/24 AS5696 65.36.52.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 66.6.34.0/24 AS14935 MONTICELLO - Monticello Networks, Inc. 66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc. 66.11.40.0/21 AS6261 VISINET - Visionary Systems, Inc. 66.54.91.0/24 AS30506 BLACKSUN-1 - Blacksun Technologies LLC 66.55.160.0/19 AS29994 66.64.96.0/20 AS3790 RADIGRAFICA COSTARRICENSE 66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION 66.199.32.0/20 AS10397 WISP-AS - Wispnet, LLC 66.206.32.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.33.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.34.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.35.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board 66.206.40.0/22 AS174 COGENT Cogent/PSI 66.206.44.0/23 AS174 COGENT Cogent/PSI 66.206.47.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 66.207.32.0/20 AS23011 66.219.192.0/18 AS5048 FIBER - FIBERNET Corp. 67.20.0.0/14 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 67.22.64.0/21 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 68.64.0.0/13 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 68.64.58.0/24 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 68.67.124.0/22 AS19548 ADELPHIA-AS2 - Road Runner HoldCo LLC 68.168.0.0/14 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 68.232.0.0/14 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 69.71.192.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 69.80.0.0/17 AS3043 AMPHIB-AS - Amphibian Media Corporation 69.160.0.0/12 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 69.167.176.0/20 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 69.169.0.0/17 AS20001 ROADRUNNER-WEST - Road Runner HoldCo LLC 70.32.0.0/13 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 70.36.0.0/20 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 70.37.212.0/22 AS7843 ADELPHIA-AS - Road Runner HoldCo LLC 70.38.0.0/16 AS19548 ADELPHIA-AS2 - Road Runner HoldCo LLC 70.40.0.0/16 AS19548 ADELPHIA-AS2 - Road Runner HoldCo LLC 80.88.0.0/21 AS33774 DJAWEB 80.88.8.0/22 AS33774 DJAWEB 80.88.10.0/24 AS33774 DJAWEB 80.88.11.0/24 AS33774 DJAWEB 80.88.12.0/24 AS33779 wataniya-telecom-as 84.246.200.0/21 AS42455 WI-MANX-AS Wi-Manx Limited AS 84.246.200.0/22 AS42455 WI-MANX-AS Wi-Manx Limited AS 84.246.204.0/22 AS42455 WI-MANX-AS Wi-Manx Limited AS 95.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 95.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 137.0.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 151.135.0.0/16 AS4768 CLIX-NZ TelstraClear Ltd 159.3.211.0/24 AS2687 ASATTCA AT&T Global Network Services - AP 163.142.0.0/16 AS2500 WIDE-BB WIDE Project 166.63.0.0/16 AS33775 NITEL-AS 172.10.1.0/30 AS18305 POSNET POSDATA Co.,Ltd 192.9.200.0/24 AS3602 AS3602-RTI - Rogers Telecom Inc. 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.40.105.0/24 AS12582 TSF-DATANET-NGD-AS TSF MPLS VPN Services 192.64.85.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.107.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.108.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.69.177.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.96.36.0/24 AS5713 SAIX-NET 192.96.37.0/24 AS10474 NETACTIVE 192.96.135.0/24 AS2018 TENET-1 192.96.136.0/23 AS2018 TENET-1 192.96.143.0/24 AS2018 TENET-1 192.96.145.0/24 AS2018 TENET-1 192.96.177.0/24 AS6083 POSIX-AFRICA 192.101.45.0/24 AS2905 TICSA-ASN 192.101.46.0/24 AS6503 Avantel, S.A. 192.101.47.0/24 AS6503 Avantel, S.A. 192.101.64.0/21 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.67.0/24 AS21775 192.101.70.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 192.101.72.0/24 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe 192.101.73.0/24 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 192.101.74.0/24 AS1239 SPRINTLINK - Sprint 192.122.212.0/24 AS209 ASN-QWEST - Qwest 192.124.252.0/22 AS680 DFN-IP Service G-WiN 192.131.233.0/24 AS7891 BELLSOUTH-NET-BLK2 - Bellsouth.Net 192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region 192.145.251.0/24 AS10026 ANC Asia Netcom Corporation 192.153.144.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 192.188.208.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 193.200.114.0/23 AS31530 SERVERCREW-AS Servercrew LTD Autonomes System 194.31.227.0/24 AS21461 TRANSFAIRNET Transfair-net GmbH Krefeld 194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH 196.6.108.0/24 AS5713 SAIX-NET 196.10.119.0/24 AS2018 TENET-1 196.10.122.0/23 AS2018 TENET-1 196.10.251.0/24 AS2018 TENET-1 196.10.252.0/23 AS2018 TENET-1 196.10.254.0/24 AS2018 TENET-1 196.13.101.0/24 AS2018 TENET-1 196.13.102.0/23 AS2018 TENET-1 196.13.104.0/24 AS2018 TENET-1 196.13.121.0/24 AS2018 TENET-1 196.13.125.0/24 AS2018 TENET-1 196.13.126.0/24 AS2018 TENET-1 196.13.169.0/24 AS2018 TENET-1 196.13.174.0/23 AS2018 TENET-1 196.13.176.0/21 AS2018 TENET-1 196.13.192.0/22 AS2018 TENET-1 196.13.196.0/24 AS2018 TENET-1 196.216.132.0/24 AS9207 AS9207 Taide - Kenya POP 196.216.134.0/24 AS9207 AS9207 Taide - Kenya POP 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.54.82.0/24 AS2018 TENET-1 198.54.92.0/24 AS2018 TENET-1 198.54.222.0/24 AS2018 TENET-1 198.97.72.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.80.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.96.0/19 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.240.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.144.96.0/20 AS12185 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.168.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 198.169.0.0/16 AS803 SASKTEL - Saskatchewan Telecommunications 198.180.198.0/24 AS23715 SEOUL-INTGW-GXS-AP Global Exchange Services 199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network 199.10.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.0.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.128.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.130.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.131.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.132.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DoD Network Information Center 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DoD Network Information Center 199.114.142.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.144.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.148.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.150.0/24 AS6045 DDN-ASNBLK - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.114.156.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.121.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.0.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.16.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.80.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 199.246.116.0/24 AS813 UUNET-CANADA - MCI Communications Services, Inc. d/b/a Verizon Business 202.45.132.0/22 AS24314 202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM 202.73.144.0/20 AS4788 TMNET-AS-AP TM Net, Internet Service Provider 202.85.240.0/24 AS17734 202.85.241.0/24 AS17734 202.85.242.0/24 AS17734 202.85.243.0/24 AS17734 202.85.244.0/24 AS17734 202.86.252.0/22 AS4748 RESOLINK-AS-AP Resources Link Network Limited 202.86.252.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.90.33.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.40.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.41.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.42.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.43.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.44.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.94.70.0/24 AS9837 POWERTEL-AP Powertel Ltd 202.124.195.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.207.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd. 202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.164.100.0/24 AS18101 RIL-IDC Reliance Infocom Ltd Internet Data Centre, 202.181.32.0/24 AS4645 ASN-HKNET-AP HKNet Co. Ltd 203.2.128.0/17 AS17175 NSS-UK New Skies Satellites UK AS 203.12.45.0/24 AS4854 NETSPACE-AS-AP Netspace Online Systems 203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company 203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd. 203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom 203.112.97.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia 203.112.111.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.113.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.114.0/24 AS4802 ASN-IINET iiNet Limited 203.112.116.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.117.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.118.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.119.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.120.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.121.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.112.127.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd 203.128.128.0/19 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 203.128.128.0/24 AS23849 CNNIC-NET263-AP Beijing Capital-online science development Co.,Ltd. 203.152.136.0/23 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.138.0/23 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.142.0/24 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.143.0/24 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.160.110.0/23 AS7643 VNN-AS-AP Vietnam Posts and Telecommunications (VNPT) 204.9.216.0/23 AS7893 BELLSOUTH-NET-BLK2 - Bellsouth.Net 204.9.217.0/24 AS4323 TWTC - Time Warner Telecom, Inc. 204.9.218.0/23 AS7893 BELLSOUTH-NET-BLK2 - Bellsouth.Net 204.13.140.0/22 AS7270 NET2PHONE - Net2Phone Corp. 204.16.120.0/23 AS12077 204.16.122.0/23 AS12077 204.19.14.0/23 AS577 BACOM - Bell Canada 204.29.196.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 204.29.197.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 204.48.58.0/24 AS4323 TWTC - Time Warner Telecom, Inc. 204.48.60.0/24 AS4323 TWTC - Time Warner Telecom, Inc. 204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 206.28.176.0/21 AS1273 CW Cable and Wireless plc 206.162.224.0/19 AS23464 ILCSNET - Interlink Computer Services 206.180.240.0/20 AS12083 KNOLOGY-NET - Knology Holdings 206.220.240.0/24 AS10764 STARTAP - National Center for Supercomputing Applications 206.220.240.64/26 AS22335 MREN - Metropolitan Research and Education Network 206.220.240.128/25 AS10764 STARTAP - National Center for Supercomputing Applications 206.220.240.160/30 AS10764 STARTAP - National Center for Supercomputing Applications 206.220.240.220/32 AS10764 STARTAP - National Center for Supercomputing Applications 206.220.241.0/24 AS10764 STARTAP - National Center for Supercomputing Applications 207.98.192.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 207.98.209.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 207.98.223.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 207.191.128.0/19 AS10887 BPSI-AS - BPSI Internet Services 207.204.168.0/24 AS15150 BELLTECH-AS - BELLWETHER TECHNOLOGY CORPORATION 207.204.222.0/24 AS22773 CCINET-2 - Cox Communications Inc. 207.204.248.0/24 AS6653 PRIVATEI - privateI, LLC 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc. 207.254.192.0/19 AS11881 208.38.192.0/18 AS3043 AMPHIB-AS - Amphibian Media Corporation 208.38.192.0/21 AS14237 BEAMSPEED1 - Beamspeed 208.38.200.0/23 AS14237 BEAMSPEED1 - Beamspeed 208.38.202.0/24 AS14237 BEAMSPEED1 - Beamspeed 208.38.203.0/24 AS14237 BEAMSPEED1 - Beamspeed 208.38.204.0/22 AS14237 BEAMSPEED1 - Beamspeed 209.54.42.0/24 AS6653 PRIVATEI - privateI, LLC 209.54.93.0/24 AS22773 CCINET-2 - Cox Communications Inc. 209.54.111.0/24 AS22773 CCINET-2 - Cox Communications Inc. 209.54.123.0/24 AS6062 NETPLEX - NETPLEX 209.54.142.0/24 AS12284 IPNS-AS - Internet Professionals & Network Solutions 209.54.240.0/21 AS10887 BPSI-AS - BPSI Internet Services 209.105.224.0/19 AS20074 209.140.90.0/24 AS14461 NTSL - NET SOLUTIONS 209.140.224.0/21 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.234.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.235.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.236.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.237.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.238.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.140.239.0/24 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.141.4.0/24 AS6653 PRIVATEI - privateI, LLC 209.141.16.0/21 AS10573 WEBNEXUS - WebNexus Communications Inc. 209.141.48.0/22 AS14461 NTSL - NET SOLUTIONS 209.141.104.0/24 AS6653 PRIVATEI - privateI, LLC 209.145.192.0/18 AS3043 AMPHIB-AS - Amphibian Media Corporation 209.145.204.0/22 AS14237 BEAMSPEED1 - Beamspeed 209.207.24.0/24 AS21829 JADETECH-NET - Jade Technologies, Inc. 209.207.36.0/24 AS21829 JADETECH-NET - Jade Technologies, Inc. 210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone 213.150.192.0/21 AS29571 CITelecom-AS 213.150.200.0/22 AS29571 CITelecom-AS 213.150.201.0/24 AS29338 AFOL-AS Used by Africaonline Operations 213.150.202.0/24 AS41042 SKYVISION SkyVision Network Services 216.37.114.0/23 AS3549 GBLX Global Crossing Ltd. 216.37.120.0/23 AS13377 216.59.0.0/17 AS3356 LEVEL3 Level 3 Communications 216.99.16.0/24 AS6395 LVLT-6395 - Level 3 Communications, Inc. 216.99.20.0/24 AS6395 LVLT-6395 - Level 3 Communications, Inc. 216.119.128.0/24 AS14345 CRESCENT-TECH - Crescent Technology 216.119.131.0/24 AS14345 CRESCENT-TECH - Crescent Technology 216.119.141.0/24 AS14345 CRESCENT-TECH - Crescent Technology 216.162.96.0/19 AS7393 CYBERCON - CYBERCON, INC. 216.172.198.0/24 AS22773 CCINET-2 - Cox Communications Inc. 216.172.199.0/24 AS22773 CCINET-2 - Cox Communications Inc. 216.210.86.0/24 AS577 BACOM - Bell Canada 216.240.240.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.241.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.242.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.251.207.0/24 AS1239 SPRINTLINK - Sprint 217.78.71.0/24 AS12491 IPPLANET-AS IPPlanet 217.78.72.0/24 AS12491 IPPLANET-AS IPPlanet 217.78.73.0/24 AS12491 IPPLANET-AS IPPlanet Please see http://www.cidr-report.org for the full report ------------------------------------ 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

1 0

Re: L3VPN VPNv4 NLRI - Route Reflector Scaling
by david.freedman＠uk.clara.net 04 Apr '08

04 Apr '08

And apologies for the html of the previous two posts :)

1 0

L3VPN VPNv4 NLRI - Route Reflector Scaling
by Mark Tinka 04 Apr '08

04 Apr '08

Hello all. (posted to C-NSP too; please excuse the length of the message) Considering the scaling techniques currently available for VPNv4/L3VPN deployments as regards MP-BGP route reflectors, what do folk think is currently the most elegant way to deploy this that provides an even compromise on manageability, cost and scale (see RFC 1925, section 2, part 7, :-))? While ORF and BGP RR groups are a logical way to go, they require significant maintenance and might introduce scaling issues as regards management on PE routers. To mitigate this, however, outbound filters on the route reflectors, to each PE router, may be used to propagate VPNv4 NLRI to the PE routers that actually need them, but introduces problems if this information has to traverse regional or international PoP's where route reflectors talk to other route reflectors (numerous RR clusters, perhaps) before the end-PE router is reached. If filtering outbound on the route reflectors were the network-wide policy, having to co-ordinate filters on 10's of route reflectors would be an administrative issue. One other option we theorize would be to have dedicated VPNv4 route reflectors (route reflectors that do not reflect other address families, e.g., IPv4, IPv6, e.t.c.). However, if PE routers are also used as general edge routers (in the global routing table), the amount of peering could become significant depending on the scale of the network, and trying to co-ordinate the numerous route reflectors serving the various address families could become an issue when considered from a multi-PoP point of view. Needless to say, adding route reflectors dedicated to VPNv4 (or a single address family, for that matter) would increase one's cost some. On the otherhand, PE-to-PE MP-iBGP peering means outbound filtering can easily be done toward a particular end-PE, but the scaling issues of a full-mesh iBGP solution come into play. We currently do not see a feasible way to selectively filter outbound VPNv4 NLRI from the ingress PE routers without causing reachability issues unless the end-PE router is also the route reflector. This means route reflectors would still have to carry network-wide VPNv4 NLRI, and would need to be the network elements that have to figure out to which PE routers what VPNv4 NLRI should be announced. Using partitioned RR's is also a consideration; but the administrative burden of co-ordinating which L3VPN has their VPNv4 NLRI on which route reflector in what part of the network could get problematic as more customers are signed on. One may also reduce the number of route reflectors to solve this problem, but the risk of more remote PoP's depending on centralized, far far away route reflectors is too great - and then there's the CPU/memory resource thing... My ideal scenario would be to somehow, scalably have the ingress PE router inform the route reflector on which end-PE routers actually need to receive the VPNv4 NLRI so that the decision of the route reflector to do this is somehow influenced by the ingress PE router, through some kind of capability. ORF achieves this to some extent, but requires the egress PE routers (and/or route reflectors) be configured with the appropriate filters. Obviously, this is probably not a thoroughly well-thought out implementation :-). How are folk handling these issues today? Cheers, Mark.

2 5

Re: Vince Fuller's original presentation on IPv6 Scaling Issues
by Paul Ferguson 04 Apr '08

04 Apr '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -- "Chris Grundemann" <cgrundemann(a)gmail.com> wrote: >Is this the presentation you are referring to: >http://www.iab.org/about/workshops/routingandaddressing/vaf-iab-raws.pdf Yes, thank you. I also found a couple of other more in-depth presentations, including this one: http://www.apricot.net/apricot2007/presentation/apia-future-routing/apia-fu ture-routing-vince-fuller.pdf Thanks, - - ferg -----BEGIN PGP SIGNATURE----- Version: PGP Desktop 9.6.3 (Build 3017) wj8DBQFH9dWKq1pz9mNUZTMRAv/aAKCqFinBVExFtekEapHk8kbcaWs39QCg0Wqy F8OJQFc4cvSJDdWfh/a8MP4= =M/M1 -----END PGP SIGNATURE----- -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(at)netzero.net ferg's tech blog: http://fergdawg.blogspot.com/

1 0