April 2011 - Test - lists.nanog.org

Weekly Routing Table Report
by Routing Analysis Role Account 08 Apr '11

08 Apr '11

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 09 Apr, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 352501 Prefixes after maximum aggregation: 160116 Deaggregation factor: 2.20 Unique aggregates announced to Internet: 174726 Total ASes present in the Internet Routing Table: 37229 Prefixes per ASN: 9.47 Origin-only ASes present in the Internet Routing Table: 31242 Origin ASes announcing only one prefix: 15033 Transit ASes present in the Internet Routing Table: 5011 Transit-only ASes present in the Internet Routing Table: 131 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 36 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 554 Unregistered ASNs in the Routing Table: 244 Number of 32-bit ASNs allocated by the RIRs: 1270 Number of 32-bit ASNs visible in the Routing Table: 976 Prefixes from 32-bit ASNs in the Routing Table: 2181 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 179 Number of addresses announced to Internet: 2404831680 Equivalent to 143 /8s, 86 /16s and 209 /24s Percentage of available address space announced: 64.9 Percentage of allocated address space announced: 64.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 90.3 Total number of prefixes smaller than registry allocations: 145944 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 87803 Total APNIC prefixes after maximum aggregation: 29890 APNIC Deaggregation factor: 2.94 Prefixes being announced from the APNIC address blocks: 84782 Unique aggregates announced from the APNIC address blocks: 36887 APNIC Region origin ASes present in the Internet Routing Table: 4397 APNIC Prefixes per ASN: 19.28 APNIC Region origin ASes announcing only one prefix: 1218 APNIC Region transit ASes present in the Internet Routing Table: 698 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 20 Number of APNIC region 32-bit ASNs visible in the Routing Table: 47 Number of APNIC addresses announced to Internet: 605565472 Equivalent to 36 /8s, 24 /16s and 50 /24s Percentage of available APNIC address space announced: 76.8 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 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, 133/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 138983 Total ARIN prefixes after maximum aggregation: 70940 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 111475 Unique aggregates announced from the ARIN address blocks: 45128 ARIN Region origin ASes present in the Internet Routing Table: 14304 ARIN Prefixes per ASN: 7.79 ARIN Region origin ASes announcing only one prefix: 5465 ARIN Region transit ASes present in the Internet Routing Table: 1487 Average ARIN Region AS path length visible: 3.9 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 11 Number of ARIN addresses announced to Internet: 797692928 Equivalent to 47 /8s, 139 /16s and 212 /24s Percentage of available ARIN address space announced: 63.4 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, 46080-47103 53248-55295, 393216-394239 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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, 100/8, 104/8, 107/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 83363 Total RIPE prefixes after maximum aggregation: 47605 RIPE Deaggregation factor: 1.75 Prefixes being announced from the RIPE address blocks: 76622 Unique aggregates announced from the RIPE address blocks: 50561 RIPE Region origin ASes present in the Internet Routing Table: 15488 RIPE Prefixes per ASN: 4.95 RIPE Region origin ASes announcing only one prefix: 7790 RIPE Region transit ASes present in the Internet Routing Table: 2419 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 721 Number of RIPE addresses announced to Internet: 464002432 Equivalent to 27 /8s, 168 /16s and 29 /24s Percentage of available RIPE address space announced: 74.7 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 40960-45055, 47104-52223, 56320-58367 196608-198655 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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, 109/8, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 32267 Total LACNIC prefixes after maximum aggregation: 7402 LACNIC Deaggregation factor: 4.36 Prefixes being announced from the LACNIC address blocks: 31330 Unique aggregates announced from the LACNIC address blocks: 16335 LACNIC Region origin ASes present in the Internet Routing Table: 1434 LACNIC Prefixes per ASN: 21.85 LACNIC Region origin ASes announcing only one prefix: 430 LACNIC Region transit ASes present in the Internet Routing Table: 259 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 192 Number of LACNIC addresses announced to Internet: 81775488 Equivalent to 4 /8s, 223 /16s and 203 /24s Percentage of available LACNIC address space announced: 54.2 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 7630 Total AfriNIC prefixes after maximum aggregation: 1820 AfriNIC Deaggregation factor: 4.19 Prefixes being announced from the AfriNIC address blocks: 6000 Unique aggregates announced from the AfriNIC address blocks: 1858 AfriNIC Region origin ASes present in the Internet Routing Table: 442 AfriNIC Prefixes per ASN: 13.57 AfriNIC Region origin ASes announcing only one prefix: 130 AfriNIC Region transit ASes present in the Internet Routing Table: 99 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 24 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5 Number of AfriNIC addresses announced to Internet: 22693120 Equivalent to 1 /8s, 90 /16s and 69 /24s Percentage of available AfriNIC address space announced: 33.8 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2440 9515 909 Korea Telecom (KIX) 7545 1547 301 83 TPG Internet Pty Ltd 17974 1458 480 33 PT TELEKOMUNIKASI INDONESIA 4755 1443 634 167 TATA Communications formerly 24560 1137 322 203 Bharti Airtel Ltd., Telemedia 4808 1063 2140 293 CNCGROUP IP network: China169 9583 1055 77 494 Sify Limited 9829 1003 867 56 BSNL National Internet Backbo 17488 942 162 98 Hathway IP Over Cable Interne 18101 935 116 139 Reliance Infocom Ltd Internet Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3666 3822 255 bellsouth.net, inc. 4323 2541 1090 396 Time Warner Telecom 1785 1791 681 131 PaeTec Communications, Inc. 18566 1642 335 197 Covad Communications 6478 1607 305 36 AT&T Worldnet Services 20115 1536 1551 641 Charter Communications 19262 1494 4949 297 Verizon Global Networks 7018 1354 6801 880 AT&T WorldNet Services 22773 1294 2865 84 Cox Communications, Inc. 2386 1281 538 924 AT&T Data Communications Serv Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6830 515 1780 319 UPC Distribution Services 34984 495 97 188 BILISIM TELEKOM 29049 463 34 34 AzerSat LLC. 3292 455 2013 392 TDC Tele Danmark 8866 446 134 26 Bulgarian Telecommunication C 20940 441 127 338 Akamai Technologies European 3320 419 7607 365 Deutsche Telekom AG 8551 403 353 46 Bezeq International 12479 403 577 6 Uni2 Autonomous System 702 394 1800 307 UUNET - Commercial IP service Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 1417 263 156 TVCABLE BOGOTA 28573 1271 972 86 NET Servicos de Comunicao S.A 8151 1241 2679 367 UniNet S.A. de C.V. 6503 1112 354 72 AVANTEL, S.A. 7303 900 464 136 Telecom Argentina Stet-France 14420 645 52 89 CORPORACION NACIONAL DE TELEC 22047 567 310 15 VTR PUNTO NET S.A. 3816 514 225 98 Empresa Nacional de Telecomun 11172 487 99 81 Servicios Alestra S.A de C.V 27947 481 53 54 Telconet S.A Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 839 445 11 TEDATA 24863 771 147 37 LINKdotNET AS number 15475 420 90 8 Nile Online 36992 295 287 12 Etisalat MISR 3741 266 985 227 The Internet Solution 24835 232 78 10 RAYA Telecom - Egypt 6713 231 215 12 Itissalat Al-MAGHRIB 33776 210 13 5 Starcomms Nigeria Limited 29571 191 17 11 Ci Telecom Autonomous system 16637 148 441 86 MTN Network Solutions Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3666 3822 255 bellsouth.net, inc. 4323 2541 1090 396 Time Warner Telecom 4766 2440 9515 909 Korea Telecom (KIX) 23456 2181 634 1179 32-bit ASN transition 1785 1791 681 131 PaeTec Communications, Inc. 18566 1642 335 197 Covad Communications 6478 1607 305 36 AT&T Worldnet Services 7545 1547 301 83 TPG Internet Pty Ltd 20115 1536 1551 641 Charter Communications 19262 1494 4949 297 Verizon Global Networks Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2541 2145 Time Warner Telecom 1785 1791 1660 PaeTec Communications, Inc. 6478 1607 1571 AT&T Worldnet Services 4766 2440 1531 Korea Telecom (KIX) 7545 1547 1464 TPG Internet Pty Ltd 18566 1642 1445 Covad Communications 17974 1458 1425 PT TELEKOMUNIKASI INDONESIA 4755 1443 1276 TATA Communications formerly 10620 1417 1261 TVCABLE BOGOTA 11492 1267 1252 Cable One Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 1.3.0.0/16 38639 NTT Communications Corporatio 2.56.0.0/16 44559 E-Rent LLC 24.225.128.0/18 36377 Comcast Telecommunications, I 24.225.192.0/23 36377 Comcast Telecommunications, I 24.225.192.0/18 36377 Comcast Telecommunications, I 24.225.224.0/21 36377 Comcast Telecommunications, I 24.225.237.0/24 36377 Comcast Telecommunications, I 24.225.248.0/21 36377 Comcast Telecommunications, I 31.3.80.0/21 23456 32-bit ASN transition 31.3.96.0/21 35470 XL Network Complete listing at http://thyme.rand.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 /9:12 /10:26 /11:74 /12:219 /13:448 /14:770 /15:1373 /16:11583 /17:5730 /18:9448 /19:19121 /20:25018 /21:25421 /22:33575 /23:32209 /24:184373 /25:1096 /26:1257 /27:683 /28:30 /29:8 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2263 3666 bellsouth.net, inc. 18566 1620 1642 Covad Communications 6478 1561 1607 AT&T Worldnet Services 4323 1362 2541 Time Warner Telecom 10620 1307 1417 TVCABLE BOGOTA 11492 1216 1267 Cable One 23456 1127 2181 32-bit ASN transition 7011 1061 1161 Citizens Utilities 1785 1057 1791 PaeTec Communications, Inc. 6503 897 1112 AVANTEL, S.A. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:296 2:55 4:14 5:1 8:350 12:2004 13:1 14:434 15:15 16:3 17:8 20:9 23:5 24:1601 27:702 31:213 32:60 33:3 34:2 37:1 38:752 39:1 40:101 41:2371 42:1 44:3 46:793 47:4 49:171 50:219 52:13 55:4 56:2 57:27 58:845 59:489 60:387 61:1164 62:1002 63:1921 64:3893 65:2336 66:4312 67:1805 68:1080 69:2934 70:702 71:343 72:1900 73:1 74:2327 75:284 76:336 77:852 78:688 79:458 80:1087 81:822 82:508 83:458 84:648 85:1041 86:556 87:761 88:340 89:1584 90:178 91:3678 92:497 93:1046 94:1258 95:776 96:448 97:252 98:821 99:35 101:61 106:2 107:4 108:78 109:936 110:531 111:679 112:324 113:385 114:511 115:700 116:932 117:674 118:774 119:1137 120:289 121:712 122:1621 123:1055 124:1282 125:1258 128:265 129:167 130:172 131:565 132:100 133:20 134:216 135:49 136:212 137:142 138:301 139:104 140:486 141:173 142:377 143:388 144:480 145:53 146:441 147:202 148:629 149:273 150:169 151:187 152:300 153:180 154:3 155:392 156:189 157:325 158:132 159:381 160:317 161:242 162:277 163:164 164:489 165:350 166:510 167:418 168:723 169:154 170:774 171:74 172:1 173:1257 174:535 175:349 177:77 178:834 180:806 181:7 182:416 183:200 184:240 185:1 186:1124 187:914 188:933 189:1041 190:4810 192:5776 193:4808 194:3471 195:2948 196:1206 197:17 198:3577 199:3906 200:5546 201:1474 202:8377 203:8466 204:4128 205:2323 206:2648 207:2999 208:3920 209:3505 210:2722 211:1365 212:1978 213:1717 214:732 215:66 216:4867 217:1640 218:556 219:386 220:1193 221:480 222:312 223:117 End of report

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Re: [torix-ops] Fabric Issues Update
by Jeff Wheeler 08 Apr '11

08 Apr '11

Netelligent's sessions are also down to allow for troubleshooting without disrupting customer traffic, and we'll turn back up once TORIX indicates everything is okay. For any members who might have a usage-based billing for carrier transport to TORIX, it is worth mentioning that if you see extra "junk" traffic coming to your port, it is likely your transport provider would bill you for this traffic even though it is not bound for your router. For example, I see about 350Mbps of "junk" right now with our BGP sessions down, so if we had to pay per-Megabit for backhaul it would push that figure up for the month. If a member in this situation wanted to avoid a larger bill they would need to turn down their port in order to avoid being charged for the traffic, as deactivating BGP obviously only affects your "good" ingress and not the "junk." -- Jeff S Wheeler <jsw(a)inconcepts.biz> Sr Network Operator / Innovative Network Concepts

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Bubba is a 75 year old woman looking to make some extra cash
by Suresh Ramasubramanian 08 Apr '11

08 Apr '11

http://www.guardian.co.uk/world/2011/apr/06/georgian-woman-cuts-web-access -- Suresh Ramasubramanian (ops.lists(a)gmail.com)

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(no subject)
by Yin To Chu 07 Apr '11

07 Apr '11

1 0

l
by Yin To Chu 07 Apr '11

07 Apr '11

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v6 Avian Carriers?
by Sachs, Marcus Hans (Marc) 07 Apr '11

07 Apr '11

I was wondering which April 1st this would happen on. Now I know. So if a v6 carrier swallows a v4 datagram does that count as packet loss or tunneling? http://datatracker.ietf.org/doc/rfc6214/ Marc

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twitter is serving up errors
by Andrew Kirch 07 Apr '11

07 Apr '11

expect nothing of technical relevance in this thread, but as this might generate some phonecalls to some people.

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Tsunami warning for north-east Japan
by andrew.wallace 07 Apr '11

07 Apr '11

A tsunami warning is issued for north-eastern Japan after an earthquake with a magnitude of 7.4 hits the region. Andrew

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link-local address calculation
by Vikas Sharma 07 Apr '11

07 Apr '11

Hi, How to get link-local address from BIA. I have seen some information on Internet but it is not working for all. ============= The BIA in this case is cc00.0bfc.0000. The rules for the modified EUI-64 addressing are: •FFFE will be put in between the vendor-id (3 most significant bytes) and the extension-id (3 least significant bytes), which will lead to cc00.0bFF.FEfc.0000 •Thereafter the seventh bit, known as universal/local bit, gets inverted. So first change the cc00 from hex to binary, which leads to 110011 0 000000000 and then invert the seventh bit (here a 0): 110011 1 000000000. Moved back to hex this will give CE00 •At last, change all points ‘.’ to colons ‘:’ and delete all leading zeros, then you got your link-local IPv6 address: FE80::CE00:BFF:FEFC:0 ============ So if your BIA is 0008.209a.081b (bia 0008.209a.081b), how link-local be calculated. This is the link-local on router => IPv6 is enabled, link-local address is FE80::208:20FF:FE9A:81B Also on XR below is the link local address Loopback6 is Up, ipv6 protocol is Up, Vrfid is default (0x60000000) IPv6 is enabled, link-local address is fe80::884c:2dff:fe84:8d75 I can not see any interface with BIA ending with 75 ... Can someone explain me this? Regards, Vikas

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LAGing backbone links
by Payam Chychi 07 Apr '11

07 Apr '11

Hello All, I was wondering if anyone had any thoughts as to the best practices of running multiple backbone links between 2 routers. In the past we've added additional links as needed, then simply enabled IS-IS when they were good to go. I'd then let IS-IS handle load balancing the traffic over the two links. But I know that others out there would setup a LAG once they had more than one link between two routers. Is there a best practice? Does it matter? Any implications to a MPLS setup? Thanks

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