Re: DNS for RFC3180 GLOP reverse zone ?
On May 6, 2010, at 11:14 PM, James Hess wrote: On Thu, May 6, 2010 at 1:12 PM, L. Gabriel Somlo gso...@gmail.com wrote: .. I wonder if DNS for GLOP/RFC3180 is still expected to work/be supported, or should I just give up :)Thanks, I am not sure, but I believe as a best practice, RFC3180 is considered basically defunct at this point, it's obvious that at least the RDNS is neglected. The problem is that it relied on mapping bits from the AS number into the IP address bitspace. Now that AS numbers have been extended to 4 bytes in length, and RIRs are even about to stop differentiating between them when allocating AS numbers, or allowing anyone to request and be sure of getting a new 16-bit ASN. It seems that it will be impossible for the scheme to be followed in IPv4. A more sensible BCP at this point would be to designate the entire 223/8 to IRRs, like was suggested by the BCP for 64512 -- 65535, since most ASNs are not using GLOP addressing. Look at RFC 5771 While it is no longer automatic, entities with 4 byte ASN can get multicast addresses from the AD-HOC Block III (the old extended GLOP space). Regards Marshall Mapping ASN bits onto multicast IP ranges is convenient but wasteful too, once you consider 2^16 ASNs. -- -J
Weekly Routing Table Report
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-st...@lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith p...@cisco.com. Routing Table Report 04:00 +10GMT Sat 08 May, 2010 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary BGP routing table entries examined: 320551 Prefixes after maximum aggregation: 147789 Deaggregation factor: 2.17 Unique aggregates announced to Internet: 155617 Total ASes present in the Internet Routing Table: 33946 Prefixes per ASN: 9.44 Origin-only ASes present in the Internet Routing Table: 29466 Origin ASes announcing only one prefix: 14348 Transit ASes present in the Internet Routing Table:4480 Transit-only ASes present in the Internet Routing Table:104 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 28 Max AS path prepend of ASN (28009) 24 Prefixes from unregistered ASNs in the Routing Table: 335 Unregistered ASNs in the Routing Table: 119 Number of 32-bit ASNs allocated by the RIRs:560 Prefixes from 32-bit ASNs in the Routing Table: 627 Special use prefixes present in the Routing Table:0 Prefixes being announced from unallocated address space:191 Number of addresses announced to Internet: 2206289024 Equivalent to 131 /8s, 129 /16s and 76 /24s Percentage of available address space announced: 59.5 Percentage of allocated address space announced: 65.5 Percentage of available address space allocated: 90.9 Percentage of address space in use by end-sites: 82.7 Total number of prefixes smaller than registry allocations: 153719 APNIC Region Analysis Summary - Prefixes being announced by APNIC Region ASes:76663 Total APNIC prefixes after maximum aggregation: 26693 APNIC Deaggregation factor:2.87 Prefixes being announced from the APNIC address blocks: 73330 Unique aggregates announced from the APNIC address blocks:32173 APNIC Region origin ASes present in the Internet Routing Table:4023 APNIC Prefixes per ASN: 18.23 APNIC Region origin ASes announcing only one prefix: 1099 APNIC Region transit ASes present in the Internet Routing Table:624 Average APNIC Region AS path length visible:3.6 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 512199488 Equivalent to 30 /8s, 135 /16s and 139 /24s Percentage of available APNIC address space announced: 76.3 APNIC AS Blocks4608-4864, 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, 43/8, 58/8, 59/8, 60/8, 61/8, 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:133881 Total ARIN prefixes after maximum aggregation:68854 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 106747 Unique aggregates announced from the ARIN address blocks: 40648 ARIN Region origin ASes present in the Internet Routing Table:13674 ARIN Prefixes per ASN: 7.81 ARIN Region origin ASes announcing only one prefix:5269 ARIN Region transit ASes present in the Internet Routing Table:1356 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 22 Number of ARIN addresses announced to Internet: 726628384 Equivalent to 43 /8s, 79 /16s and 120 /24s Percentage of available ARIN address
BGP Update Report
BGP Update Report Interval: 29-Apr-10 -to- 06-May-10 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS17488 61957 4.8% 53.7 -- HATHWAY-NET-AP Hathway IP Over Cable Internet 2 - AS949825882 2.0% 41.4 -- BBIL-AP BHARTI Airtel Ltd. 3 - AS982922482 1.7% 24.0 -- BSNL-NIB National Internet Backbone 4 - AS958317345 1.3% 46.0 -- SIFY-AS-IN Sify Limited 5 - AS18207 15776 1.2% 52.8 -- IQARA-INDIA-AP Iqara Telecom India Pvt Ltd. 6 - AS35805 13424 1.0% 21.7 -- UTG-AS United Telecom AS 7 - AS30890 13274 1.0% 31.1 -- EVOLVA Evolva Telecom s.r.l. 8 - AS838612219 0.9% 152.7 -- KOCNET KOCNET-AS 9 - AS453810782 0.8% 399.3 -- ERX-CERNET-BKB China Education and Research Network Center 10 - AS29049 10767 0.8% 37.0 -- DELTA-TELECOM-AS Delta Telecom LTD. 11 - AS28477 10597 0.8% 10597.0 -- Universidad Autonoma del Esstado de Morelos 12 - AS36992 10094 0.8% 15.6 -- ETISALAT-MISR 13 - AS7633 8992 0.7% 62.0 -- SOFTNET-AS-AP Software Technology Parks of India - Bangalore 14 - AS144207871 0.6% 19.0 -- CORPORACION NACIONAL DE TELECOMUNICACIONES CNT S.A. 15 - AS9198 7660 0.6% 32.5 -- KAZTELECOM-AS JSC Kazakhtelecom 16 - AS8452 7497 0.6% 10.5 -- TEDATA TEDATA 17 - AS220477494 0.6% 57.6 -- VTR BANDA ANCHA S.A. 18 - AS5800 7444 0.6% 36.5 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 19 - AS124797438 0.6% 275.5 -- UNI2-AS Uni2 - Lince telecomunicaciones 20 - AS8151 6857 0.5% 11.8 -- Uninet S.A. de C.V. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS28477 10597 0.8% 10597.0 -- Universidad Autonoma del Esstado de Morelos 2 - AS473463376 0.3%3376.0 -- ELECOM-NT-AS Elecom-NT LLC 3 - AS130042646 0.2%2646.0 -- SOX Serbian Open Exchange 4 - AS260252229 0.2%2229.0 -- COC - City of Calgary 5 - AS165692217 0.2%2217.0 -- ASN-CITY-OF-CALGARY - City of Calgary 6 - AS487541547 0.1%1547.0 -- SOBIS-AS SC SOBIS SOLUTIONS SRL 7 - AS386801375 0.1%1375.0 -- CMBHK-AS-KR CMB 8 - AS3397 839 0.1% 839.0 -- DAVINCI - Davinci Broadband Inc. 9 - AS28671 757 0.1% 757.0 -- Konecta Telecomunicações Ltda 10 - AS11613 744 0.1% 744.0 -- U-SAVE - U-Save Auto Rental of America, Inc. 11 - AS303411837 0.1% 612.3 -- SCTA-ASN - South Central Telephone Association 12 - AS44663 580 0.0% 580.0 -- INFOPROCESS-PL-AS Infoprocess Solutions 13 - AS183992152 0.2% 538.0 -- BAGAN-TRANSIT-AS Bagan Cybertech IDC Teleport International Transit 14 - AS453810782 0.8% 399.3 -- ERX-CERNET-BKB China Education and Research Network Center 15 - AS104452326 0.2% 387.7 -- HTG - Huntleigh Telcom 16 - AS28052 371 0.0% 371.0 -- Arte Radiotelevisivo Argentino 17 - AS38468 346 0.0% 346.0 -- YESBANK-IN ASN for YESBANK 18 - AS47593 345 0.0% 345.0 -- ATELECOM A-Telcom Ltd 19 - AS3505 684 0.1% 342.0 -- WINDSTREAM - Windstream Communications Inc 20 - AS369774971 0.4% 310.7 -- WARID-AS TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 58.207.96.0/1910669 0.8% AS4538 -- ERX-CERNET-BKB China Education and Research Network Center 2 - 200.13.36.0/2410597 0.8% AS28477 -- Universidad Autonoma del Esstado de Morelos 3 - 93.191.104.0/213376 0.2% AS47346 -- ELECOM-NT-AS Elecom-NT LLC 4 - 202.92.235.0/243338 0.2% AS9498 -- BBIL-AP BHARTI Airtel Ltd. 5 - 188.187.184.0/24 3241 0.2% AS41786 -- ERTH-YOLA-AS CJSC Company ER-Telecom Yoshkar-Ola 6 - 206.184.16.0/242921 0.2% AS174 -- COGENT Cogent/PSI 7 - 193.105.163.0/24 2646 0.2% AS13004 -- SOX Serbian Open Exchange 8 - 85.60.194.0/23 2486 0.2% AS12479 -- UNI2-AS Uni2 - Lince telecomunicaciones 9 - 143.138.107.0/24 2288 0.2% AS747 -- TAEGU-AS - Headquarters, USAISC 10 - 208.98.231.0/242229 0.2% AS26025 -- COC - City of Calgary 11 - 208.98.230.0/242217 0.2% AS16569 -- ASN-CITY-OF-CALGARY - City of Calgary 12 - 203.81.166.0/242068 0.1% AS18399 -- BAGAN-TRANSIT-AS Bagan Cybertech IDC Teleport International Transit 13 - 85.60.192.0/23 1570 0.1% AS12479 -- UNI2-AS Uni2 - Lince telecomunicaciones 14 - 91.212.23.0/24 1547 0.1% AS48754 -- SOBIS-AS SC SOBIS SOLUTIONS SRL 15 - 180.233.225.0/24 1375 0.1% AS38680 -- CMBHK-AS-KR CMB 16 - 90.150.0.0/24
The Cidr Report
This report has been generated at Fri May 7 21:12:12 2010 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 PrefixesCIDR Agg
30-04-10322501 198664
01-05-10322647 198609
02-05-10322742 198643
03-05-10322708 198607
04-05-10322474 198576
05-05-10322691 198520
06-05-10322670 198937
07-05-10322970 198880
AS Summary
34333 Number of ASes in routing system
14613 Number of ASes announcing only one prefix
4425 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
97317792 Largest address span announced by an AS (/32s)
AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street
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').
--- 07May10 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 323126 198866 12426038.5% All ASes
AS6389 3931 293 363892.5% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4425 1509 291665.9% TWTC - tw telecom holdings,
inc.
AS4766 1847 494 135373.3% KIXS-AS-KR Korea Telecom
AS4755 1290 203 108784.3% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1152 77 107593.3% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS17488 1314 300 101477.2% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS7545 1189 236 95380.2% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS18566 1059 159 90085.0% COVAD - Covad Communications
Co.
AS8151 1553 666 88757.1% Uninet S.A. de C.V.
AS6478 1219 340 87972.1% ATT-INTERNET3 - ATT WorldNet
Services
AS10620 1031 153 87885.2% Telmex Colombia S.A.
AS19262 1088 270 81875.2% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS5668 833 202 63175.8% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS7303 731 107 62485.4% Telecom Argentina S.A.
AS1785 1784 1173 61134.2% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4804 678 84 59487.6% MPX-AS Microplex PTY LTD
AS4808 844 256 58869.7% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7018 1553 987 56636.4% ATT-INTERNET4 - ATT WorldNet
Services
AS8452 920 361 55960.8% TEDATA TEDATA
AS35805 617 64 55389.6% UTG-AS United Telecom AS
AS18101 668 121 54781.9% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS24560 891 351 54060.6% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS28573 890 353 53760.3% NET Servicos de Comunicao S.A.
AS3356 1208 699 50942.1% LEVEL3 Level 3 Communications
AS4780 673 169 50474.9% SEEDNET Digital United Inc.
AS17676 569 78 49186.3% GIGAINFRA Softbank BB Corp.
AS9443 555 74 48186.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS17908 528 57 47189.2% TCISL Tata Communications
AS7011 1121 674 44739.9% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS7738 477 30 44793.7% Telecomunicacoes da Bahia S.A.
Total 36638105402609871.2% Top 30 total
Possible Bogus Routes
41.202.96.0/19
Re: Internationalized domain names in the root
On Fri, 7 May 2010, Jeroen van Aart wrote: David Conrad wrote: Perhaps a bit off-topic, but some folks might get support calls... http://وزارة-الأتصالات.مصر/ That actually looks quite handsome. :-) And this is what it looks like to DNS: http://xn--4gbrim.xnrmckbbajlc6dj7bxne2c.xn--wgbh1c/ Hurrah for Punycode. --- Peter Beckman Internet Guy beck...@angryox.com http://www.angryox.com/ ---
