RE: YouTube Video Streaming
I would like to get some input for the following problem we face with YouTube video streaming. We are an ISP in Singapore and peer with Google at Equinix and SOX (Singapore Open Exchange), For about 2 weeks we have been facing choppy streaming or continuous buffering on various YouTube videos. These problem videos are streamed at HD or original quality. Our troubleshooting narrow down to those bad videos being streamed to us from outside Singapore. We contacted Google support, they are confused too, as why we are served from a cache server in Poland on one of the videos. The case has been escalated within Google, unfortunately no update from them since. Not all YouTube videos are bad through us, some 45 minutes videos can fully buffered within seconds on HD or original quality, of course the IP we streamed for these videos are through our local peering with Google. I have seen similar issues, some videos work fine but others seem to stop after either a few minutes or half way through. The same behaviour is seen on various computers, the same video stops at the same place. I didn't have time and could not be bothered to look into it at the time and kind of put it down to one of those things that will be fixed later. So I'd be really interested in what the outcome is! -- Leigh Porter __ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com __
Re: pbx recco
yate hasnt been mentioned, which i am using successfully in multiple roles. http://yate.null.ro/pmwiki/ they have a distro similar to freepbx at http://www.freesentral.com/ however, we are currently evaluating sip:provider CE, which may be more than you need, but definitively worth a look. http://www.sipwise.com/products/spce/ its an open source softswitch implementation, which has made tremendous progress in recent releases. kind regards Thilo
Re: YouTube Video Streaming
Hi, On Fri, May 18, 2012 at 3:37 AM, Thames tha...@viewqwest.com wrote: I would like to get some input for the following problem we face with YouTube video streaming. We are an ISP in Singapore and peer with Google at Equinix and SOX (Singapore Open Exchange), For about 2 weeks we have been facing choppy streaming or continuous buffering on various YouTube videos. I don't know how big you are, but have you considered joining the Google Global Cache http://ggcadmin.google.com/ggc ? It may help in the future with issues like this. It seems odd that Google aren't doing much with this, they are usually quite obsessive when it comes to reducing latency and other issues over their peering connections. Alex
RE: Commerical Backup Solutions
BackupExec was a Seagate product Symantec bought prior to their purchase of Veritas. I've been using NetBackup for over a decade now (originally in Irix and Solaris heavy environments, but these days on Windows and Linux for the most part). Symantec are a pain the ass to deal with, but the core NetBackup functionality is still stable and reliable (and BackupExec has been brought into parity in many ways with NetBackup over the years, but still lacks some features and functions its bigger brother handles). The master server role can be anywhere in your topology and the media server role is separated out and can exist across multiple hosts and locations. Management can be done from any approved host running the management console software. Tivoli and Legato are pretty similar feature, functionality, and being expensive, though I wouldn't wish Legato on anyone. -- Jamie Bowden(ja...@photon.com) Sr. Sys. Admin. (703) 243-6613 x3848 Photon Research Associates, Inc. 1616 Fort Myer Drive, Suite 1000 Arlington, VA 22209 -Original Message- From: Josh Baird [mailto:joshba...@gmail.com] Sent: Thursday, May 17, 2012 8:02 PM To: Thomas York Cc: nanog@nanog.org Subject: Re: Commerical Backup Solutions We have used Symantec's BackupExec (Veritas) in several locations but have standardized on IBM's Tivoli Storage Manager (TSM). Not a fan of IBM, but it works, and it works well. Be prepared to drop some serious coin, though. We currently use it to do tape backups for over 800+ servers (Linux, AIX, Windows). Josh On Thu, May 17, 2012 at 7:08 PM, Thomas York strate...@fuhell.com wrote: We use Barracuda Yosemite backup with about 10 locations all over the world, using disk to disk (single disks via esata and to SANs) and disk to tape (both libraries and single drives). Very rarely do we have issues. Barracuda support isn't as good as Yosemite's (Barracuda bought them) but still not bad. Also, the site wide license is a steal! Get a demo, it might fit the bill. --Thomas York On May 17, 2012 6:59 PM, Mike Lyon mike.l...@gmail.com wrote: We used Acronis and it was a nightmare as was their off-shored support model. Never again... Wouldn't touch them with a 10 foot pole. Switched to Iron Mountain LiveVault which backs everything up over the wire. It has basic reporting functions but not extremely granular. http://ironmountain.com/services/democenter/livevault/player.html Barracuda also seems to have a nice product. Though, i've never used it: http://www.barracudanetworks.com/ns/products/backup_overview.php -Mike On Thu, May 17, 2012 at 3:53 PM, Paul Stewart p...@paulstewart.org wrote: Hey folks. I'm hoping for some input from operational folks on backup solutions for servers. We are looking for a commercial backup solution with a nice reporting dashboard etc. It must support full/incremental backups on Windows and various flavors of Linux. We would also be looking for bare metal image/recovery abilities. To date, we've been fond of Acronis until we got the quote for it .. Initially we would be looking at 50-80 servers and growing it up from there to probably 150-200 boxes. Some of these servers are geographically dispersed. At the moment we have been using Bacula but it lacks bare metal options and doesn't have any nice reporting options (Executive Dashboard etc) Thanks for any input, Paul -- Mike Lyon 408-621-4826 mike.l...@gmail.com http://www.linkedin.com/in/mlyon
RE: Commerical Backup Solutions
Add Seagate's Evault to your list: http://www.evault.com/ Has the support for BMR, Windows (including agents for Exchange and MSSQL), Linux, encryption, vault replication, VADP, etc. They also have a partner program for service providers (my employer happens to be one). I've personally used the product across multiple companies all the way back to before Seagate bought them out, and I view it as one of the most mature offerings on the market, and support has always been great. Good luck! -Scott -Original Message- From: Paul Stewart [mailto:p...@paulstewart.org] Sent: Thursday, May 17, 2012 6:53 PM To: nanog@nanog.org Subject: Commerical Backup Solutions Hey folks. I'm hoping for some input from operational folks on backup solutions for servers. We are looking for a commercial backup solution with a nice reporting dashboard etc. It must support full/incremental backups on Windows and various flavors of Linux. We would also be looking for bare metal image/recovery abilities. To date, we've been fond of Acronis until we got the quote for it .. Initially we would be looking at 50-80 servers and growing it up from there to probably 150-200 boxes. Some of these servers are geographically dispersed. At the moment we have been using Bacula but it lacks bare metal options and doesn't have any nice reporting options (Executive Dashboard etc) Thanks for any input, Paul
RE: Commerical Backup Solutions
I wanted to add that I've had some recent experience with Asigra (and specifically pitting it against Evault), and they are currently a little behind in VADP and other VMWare related feature sets, and their Linux distribution support is very limited (basically no support for anything but RedHat). They also charge extra for the web console. Overall for our needs, Evault beat out Asigra, but there isn't anything horribly wrong with Asigra's product either. -Scott -Original Message- From: Blake Pfankuch [mailto:bl...@pfankuch.me] Sent: Thursday, May 17, 2012 9:31 PM To: Josh Baird; Thomas York Cc: nanog@nanog.org Subject: RE: Commerical Backup Solutions First, I work for a managed service provider. We support a large number of traditional and over the wire backup solutions. We have used Symantec Backup Exec, eVault, Acronis, Intronis, Asigra, Heroware (newer solution more DR focused) and many more I've purged from my memory. I have been using BE since it was Veritas starting in about 2003. Backup Exec is GREAT if you have a premise Disk server with Tape archive, or even a remote over fast WAN. Acronis is nice, but not easy to manage historically. Intronis get not only a no, but a hell no please die now. Asigra is probably one of my favorites. You spend the cash for it, but it works right, it integrates with everything, depending on if you get it from a reseller or run your own vault, you get good reporting options and BMR is easy as pie. Heroware has great DR and versioning options but its still growing. Small datacenter platform, I like it a lot. Aiming at Asigra a little more there are many vendors that offer over the wire backup using this. Most of them price by the gig, but based on what you are doing you could probably do a peer replication where you run your own vault locally to back up to, and then integrate that to one of many providers to get your off site. Asigra offers decent compression and integration into Windows and nix tools for open file and such. We have used Asigra to backup up anything from nt4 to 2008r2, nix, bsd, as400, esx and esxi. All the backup stuff is included. You get the base software you get the ability to back up everything it can, with the exception of Message Level backup and restore in Exchange, and file level within SharePoint which require another service to be enabled. The UI has its moments of clunky, but it has gotten WAY better over the past few years. Reporting options are great, as is file growth trending. Restores are tricky the first time, but its just a learning curve like any other app. As far as BMR restores on above products I've pretty much done them all. We do a lot of SMB work so many times single server, often SBS. I have done single DC, Exchange servers, mysql servers, file and print servers and many more. By far the trickiest ones are the Windows Small Business Servers based solely on the fact they can be complicated to work with as they have Windows, AD, Exchange, SQL, RWW and SharePoint on 1 box. If you have ever done a BMR of an SBS server 2000/2003/2008/2011 if everything isn't perfect you might as well rebuild. All of these assume you have a well managed backup solution which is getting all the data needed for a full restore of course. Backup Exec its possible and its not that hard. EVault in theory, but the process can be difficult. Acronis does a very nice job of it. Intronis don't bother, spend the time working on a resume because a BMR from this is probably a career changing event. I had to attempt it for one customer, I got the data I needed gave it the proverbial finger and built a new server to move it onto. Asigra makes it really easy. I have done about 5 (about 18 in our company total) SBS full restores. You have to jump through a few hoops, but we fully restored a failed SBS 2003 server onto a VM while replacement hardware came in in 12 hours, including line of business SQL app, Exchange, AD and about 200gb of data. Heroware is very similar in theory. It works off a replication technology (DoubleTake backend) which does snapshots within the replication. Heroware is designed to have an appliance per 10-50 servers depending on size and load so it might not scale to the size you are looking. Dollars to doughnuts if I had the option, I would do Asigra every time if I had the budget from the customer for the offsite. Why? Many of the resellers out there even guarantee they can do a 24 or 48 hour RTO of a full environment assuming they have the correct backed up date. It just works that well. I have done 2 5+ server environments restore the whole thing from backups with no problems in 24 hours or less onto mismatched hardware as well. Keep in mind we are working with customers with user counts between 10 and 150 in most cases and usually about $1 per gig because they are lower size. I've heard rumors of people getting as low as 25 cents a gig, but I cant speak to that. Yes, I resell
Re: YouTube Video Streaming
On 05/18/12 10:37 +0800, Thames wrote: I would like to get some input for the following problem we face with YouTube video streaming. We are an ISP in Singapore and peer with Google at Equinix and SOX (Singapore Open Exchange), For about 2 weeks we have been facing choppy streaming or continuous buffering on various YouTube videos. These problem videos are streamed at HD or original quality. Our troubleshooting narrow down to those bad videos being streamed to us from outside Singapore. We contacted Google support, they are confused too, as why we are served from a cache server in Poland on one of the videos. The case has been escalated within Google, unfortunately no update from them since. Not all YouTube videos are bad through us, some 45 minutes videos can fully buffered within seconds on HD or original quality, of course the IP we streamed for these videos are through our local peering with Google. -Thames Thames, We went through something similar here about a year ago. It took around two weeks for Google engineers to resolve the trouble, however, the problem has popped up once or twice since then. Here is a post from the nanog archives that describes a workaround, where you relay youtube dns queries to another DNS resolver in your area that does not experience the problem: http://seclists.org/nanog/2011/May/21 -- Dan White
need help about bgd and ospf
Hi all Can I have questions about bgp and ospf 1/ Do I have to redistrt bgd in ospf to make ospf to know which upstrem bgp routers to go out 2/ If yes, how many routes can ospf database handle as one full bgp table is about 400,000 routes 3/ When we have 8 ospf routers to run redistrubt bgp, ls it 8 x 400,000 routes in ospf database? 4/ If not redistribted bgp, how ospf to know which upstream to go out Thank you for your help
Re: need help about bgd and ospf
Nope, run iBGP, have only next-hops in OSPF. Regards, Jeff On May 18, 2012, at 19:14, Deric Kwok deric.kwok2...@gmail.com wrote: Hi all Can I have questions about bgp and ospf 1/ Do I have to redistrt bgd in ospf to make ospf to know which upstrem bgp routers to go out 2/ If yes, how many routes can ospf database handle as one full bgp table is about 400,000 routes 3/ When we have 8 ospf routers to run redistrubt bgp, ls it 8 x 400,000 routes in ospf database? 4/ If not redistribted bgp, how ospf to know which upstream to go out Thank you for your help
Re: need help about bgd and ospf
Hi Deric, I would strongly suggest that you watch a couple of the NANOG tutorials on routing. The would help you answer these and other questions. Go to this page - http://www.nanog.org/meetings/archive/ - pick a meeting and find the BGP tutorial. There are a few taught each year. Barry Sent from my iPad On May 18, 2012, at 10:13 AM, Deric Kwok deric.kwok2...@gmail.com wrote: Hi all Can I have questions about bgp and ospf 1/ Do I have to redistrt bgd in ospf to make ospf to know which upstrem bgp routers to go out 2/ If yes, how many routes can ospf database handle as one full bgp table is about 400,000 routes 3/ When we have 8 ospf routers to run redistrubt bgp, ls it 8 x 400,000 routes in ospf database? 4/ If not redistribted bgp, how ospf to know which upstream to go out Thank you for your help
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. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, TRNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-st...@lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith pfsi...@gmail.com. Routing Table Report 04:00 +10GMT Sat 19 May, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary BGP routing table entries examined: 409230 Prefixes after maximum aggregation: 173889 Deaggregation factor: 2.35 Unique aggregates announced to Internet: 199573 Total ASes present in the Internet Routing Table: 41033 Prefixes per ASN: 9.97 Origin-only ASes present in the Internet Routing Table: 33202 Origin ASes announcing only one prefix: 15654 Transit ASes present in the Internet Routing Table:5481 Transit-only ASes present in the Internet Routing Table:137 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 30 Max AS path prepend of ASN (36992) 22 Prefixes from unregistered ASNs in the Routing Table: 365 Unregistered ASNs in the Routing Table: 132 Number of 32-bit ASNs allocated by the RIRs: 2716 Number of 32-bit ASNs visible in the Routing Table:2350 Prefixes from 32-bit ASNs in the Routing Table:5960 Special use prefixes present in the Routing Table:2 Prefixes being announced from unallocated address space:106 Number of addresses announced to Internet: 2550061936 Equivalent to 151 /8s, 254 /16s and 219 /24s Percentage of available address space announced: 68.8 Percentage of allocated address space announced: 68.9 Percentage of available address space allocated: 99.9 Percentage of address space in use by end-sites: 92.7 Total number of prefixes smaller than registry allocations: 174827 APNIC Region Analysis Summary - Prefixes being announced by APNIC Region ASes: 100170 Total APNIC prefixes after maximum aggregation: 32430 APNIC Deaggregation factor:3.09 Prefixes being announced from the APNIC address blocks: 96619 Unique aggregates announced from the APNIC address blocks:39919 APNIC Region origin ASes present in the Internet Routing Table:4690 APNIC Prefixes per ASN: 20.60 APNIC Region origin ASes announcing only one prefix: 1242 APNIC Region transit ASes present in the Internet Routing Table:728 Average APNIC Region AS path length visible:4.7 Max APNIC Region AS path length visible: 22 Number of APNIC region 32-bit ASNs visible in the Routing Table:212 Number of APNIC addresses announced to Internet: 644826304 Equivalent to 38 /8s, 111 /16s and 68 /24s Percentage of available APNIC address space announced: 81.8 APNIC AS Blocks4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-132095, 132096-133119 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:151240 Total ARIN prefixes after maximum aggregation:76711 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 121762 Unique aggregates announced from the ARIN address blocks: 50992 ARIN Region origin ASes present in the Internet Routing Table:15113 ARIN Prefixes per ASN: 8.06 ARIN Region origin ASes announcing only one prefix:
Level3 Issues
Anyone having BGP issues in and out of Level3 in the past 30 minutes? --ScottW
Re: Level3 Issues
I see a few drops in ATLN -b On Fri, May 18, 2012 at 1:17 PM, Scott Wolfe scott.wo...@cybera.net wrote: Anyone having BGP issues in and out of Level3 in the past 30 minutes? --ScottW -- Bill Blackford Network Engineer Logged into reality and abusing my sudo privileges.
Re: Level3 Issues
On 05/18/2012 03:17 PM, Scott Wolfe wrote: Anyone having BGP issues in and out of Level3 in the past 30 minutes? --ScottW No BGP issues via Kansas City, but looks like somewhat less than normal amount of traffic. Steve -- -- Steven Saner ssa...@hubris.net Voice: 316-858-3000 Director of Network Operations Fax: 316-858-3001 Hubris Communicationshttp://www.hubris.net
BGP Update Report
BGP Update Report Interval: 10-May-12 -to- 17-May-12 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS982975456 3.6% 62.7 -- BSNL-NIB National Internet Backbone 2 - AS840268093 3.2% 34.6 -- CORBINA-AS OJSC Vimpelcom 3 - AS702929621 1.4% 13.3 -- WINDSTREAM - Windstream Communications Inc 4 - AS24560 28898 1.4% 31.7 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services 5 - AS12479 26694 1.3% 381.3 -- UNI2-AS France Telecom Espana SA 6 - AS32528 24694 1.2%4938.8 -- ABBOTT Abbot Labs 7 - AS178524617 1.2% 13.2 -- AS-PAETEC-NET - PaeTec Communications, Inc. 8 - AS845220123 0.9% 29.7 -- TE-AS TE-AS 9 - AS25620 19727 0.9% 116.7 -- COTAS LTDA. 10 - AS580019376 0.9% 72.3 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 11 - AS13118 19205 0.9% 533.5 -- ASN-YARTELECOM OJSC Rostelecom 12 - AS815114216 0.7% 17.4 -- Uninet S.A. de C.V. 13 - AS383 12128 0.6% 120.1 -- AFCONC-BLOCK1-AS - 754th Electronic Systems Group 14 - AS755211929 0.6% 11.8 -- VIETEL-AS-AP Vietel Corporation 15 - AS17974 11779 0.6% 9.7 -- TELKOMNET-AS2-AP PT Telekomunikasi Indonesia 16 - AS31148 10984 0.5% 15.4 -- FREENET-AS FreeNet ISP 17 - AS36167 10402 0.5% 103.0 -- NETRIPLEX01 - NETRIPLEX LLC 18 - AS11664 10180 0.5% 39.0 -- Techtel LMDS Comunicaciones Interactivas S.A. 19 - AS650310176 0.5% 16.8 -- Axtel, S.A.B. de C.V. 20 - AS9583 9985 0.5% 13.6 -- SIFY-AS-IN Sify Limited TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS447988115 0.4%8115.0 -- PERVOMAYSK-AS PP SKS-Pervomaysk 2 - AS166525809 0.3%5809.0 -- RISEUP - Riseup Networks 3 - AS573435456 0.3%5456.0 -- DIGIMAT-AS Digimat s.r.l. 4 - AS32528 24694 1.2%4938.8 -- ABBOTT Abbot Labs 5 - AS207752640 0.1%2640.0 -- GETIT GETIT Internet GmbH 6 - AS32482 0.1% 366.0 -- UMNIAH Umniah Mobile Company 7 - AS7219 1282 0.1%1282.0 -- ASNTULIX - Tulix Systems, Inc. 8 - AS369481932 0.1% 966.0 -- KENIC 9 - AS55665 884 0.0% 884.0 -- STMI-AS-ID PT Sampoerna Telemedia Indonesia 10 - AS190451708 0.1% 854.0 -- DIRECTCOM - Direct Communications Cable LLC 11 - AS21452 795 0.0% 795.0 -- skannet-ibadan 12 - AS42281 794 0.0% 794.0 -- RACHFAHL-IT-AS Rachfahl IT-Solutions GmbH Co.KG 13 - AS5430 6128 0.3% 766.0 -- FREENETDE freenet Datenkommunikations GmbH 14 - AS29126 746 0.0% 746.0 -- DATIQ-AS Datiq B.V. 15 - AS328905134 0.2% 733.4 -- BTC-AS-1 - Beehive Telephone Company, Inc. 16 - AS9821 718 0.0% 718.0 -- DOST-PH-AP Department of Science and Technology 17 - AS406771223 0.1% 611.5 -- GLOBALAIR-COM - Globalair.com 18 - AS132631767 0.1% 589.0 -- HAYATNET-AS HayatNet Bilgi ve Iletisim Hizmetleri A.S 19 - AS491821136 0.1% 568.0 -- BTENGAGEIT BT ENGAGE IT Limited 20 - AS27667 557 0.0% 557.0 -- Universidad Autonoma de la Laguna TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 109.161.64.0/19 18741 0.8% AS13118 -- ASN-YARTELECOM OJSC Rostelecom 2 - 130.36.34.0/2412339 0.6% AS32528 -- ABBOTT Abbot Labs 3 - 130.36.35.0/2412339 0.6% AS32528 -- ABBOTT Abbot Labs 4 - 41.43.147.0/24 9960 0.4% AS8452 -- TE-AS TE-AS 5 - 91.202.212.0/228115 0.4% AS44798 -- PERVOMAYSK-AS PP SKS-Pervomaysk 6 - 62.36.252.0/22 8007 0.4% AS12479 -- UNI2-AS France Telecom Espana SA 7 - 62.36.249.0/24 6467 0.3% AS12479 -- UNI2-AS France Telecom Espana SA 8 - 62.36.241.0/24 6066 0.3% AS12479 -- UNI2-AS France Telecom Espana SA 9 - 62.36.210.0/24 5909 0.3% AS12479 -- UNI2-AS France Telecom Espana SA 10 - 199.254.238.0/24 5809 0.3% AS16652 -- RISEUP - Riseup Networks 11 - 91.231.179.0/245456 0.2% AS57343 -- DIGIMAT-AS Digimat s.r.l. 12 - 194.63.9.0/24 5325 0.2% AS1273 -- CW Cable and Wireless Worldwide plc 13 - 202.56.215.0/243582 0.2% AS24560 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services 14 - 69.54.109.0/24 3565 0.2% AS7018 -- ATT-INTERNET4 - ATT Services, Inc. 15 - 182.64.0.0/16 3345 0.1% AS24560 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services 16 - 217.194.224.0/20 2640 0.1% AS20775 -- GETIT GETIT Internet GmbH 17 - 193.105.129.0/24 2482 0.1% AS3 -- UMNIAH Umniah Mobile Company
The Cidr Report
This report has been generated at Fri May 18 21:12:46 2012 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
11-05-12410225 240868
12-05-12410475 240522
13-05-12410127 241239
14-05-12410740 240953
15-05-12410599 240761
16-05-12410522 241112
17-05-12411045 241394
18-05-12411873 241338
AS Summary
41157 Number of ASes in routing system
17189 Number of ASes announcing only one prefix
3414 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
112440288 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').
--- 18May12 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 412447 241411 17103641.5% All ASes
AS6389 3414 196 321894.3% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS7029 3407 1889 151844.6% WINDSTREAM - Windstream
Communications Inc
AS4766 2608 1122 148657.0% KIXS-AS-KR Korea Telecom
AS22773 1607 135 147291.6% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS18566 2094 703 139166.4% COVAD - Covad Communications
Co.
AS28573 1858 497 136173.3% NET Servicos de Comunicao S.A.
AS4323 1585 385 120075.7% TWTC - tw telecom holdings,
inc.
AS10620 1911 805 110657.9% Telmex Colombia S.A.
AS1785 1905 802 110357.9% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS4755 1577 534 104366.1% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS7303 1435 446 98968.9% Telecom Argentina S.A.
AS7552 1173 224 94980.9% VIETEL-AS-AP Vietel
Corporation
AS26615 902 32 87096.5% Tim Celular S.A.
AS8151 1486 673 81354.7% Uninet S.A. de C.V.
AS18101 947 158 78983.3% RELIANCE-COMMUNICATIONS-IN
Reliance Communications
Ltd.DAKC MUMBAI
AS17974 1924 1162 76239.6% TELKOMNET-AS2-AP PT
Telekomunikasi Indonesia
AS4808 1109 350 75968.4% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS9394 834 153 68181.7% CRNET CHINA RAILWAY
Internet(CRNET)
AS13977 770 121 64984.3% CTELCO - FAIRPOINT
COMMUNICATIONS, INC.
AS2118 658 14 64497.9% RELCOM-AS OOO NPO Relcom
AS3356 1100 463 63757.9% LEVEL3 Level 3 Communications
AS30036 1417 786 63144.5% MEDIACOM-ENTERPRISE-BUSINESS -
Mediacom Communications Corp
AS17676 691 75 61689.1% GIGAINFRA Softbank BB Corp.
AS19262 995 398 59760.0% VZGNI-TRANSIT - Verizon Online
LLC
AS22561 1016 424 59258.3% DIGITAL-TELEPORT - Digital
Teleport Inc.
AS24560 1027 450 57756.2% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS4780 832 258 57469.0% SEEDNET Digital United Inc.
AS3549 1006 444 56255.9% GBLX Global Crossing Ltd.
AS22047 582 31 55194.7% VTR BANDA ANCHA S.A.
AS8452 1302 759 54341.7% TE-AS TE-AS
Total 43172144892868366.4% Top 30 total
Possible Bogus Routes
10.86.64.32/30 AS65530 -Private Use AS-
Re: NANOG 55 DNS Track
Hello again, I wanted to follow up and let NANOG community know the detailed plans for DNS Track. Session will take place on Tuesday, June 5, 2012 from 5:00 PM to 6:30 PM in Salon A-C NANOG DNS BoF 90mins 5 Mins Introductions - Mehmet 15 Mins Steve Crocker - Chair, FCC CSRIC Working Group 5, DNSSEC Implementation Practices for ISPs 10 Mins PCH Update - Robert Martin-Legène 10 Mins Verisign Update - Duane Wessels 10 Mins ICANN Update - Dave Knight 10 Mins Comcast Update - Chris Ganster 10 Mins ISC Update - Peter Losher 20 Mins QA - regarding presentations more. if you have any questions please feel free to contact me, looking forward to see you all there. Mehmet On May 2, 2012, at 9:05 AM, Mehmet Akcin wrote: Hello everyone, NANOG 55 will take place in Vancouver , Canada June 3-6 , 2012. I will send more information about DNS Track timing and details of the track later. I am sending this email to ask NANOG attendees to help us organize a better track by letting us know what topics they want to see covered about DNS. We are also inviting parties who are DNS Software providers, service providers, experts, and researchers to join and present about what they think is interesting. Please contact me directly if you want to briefly bring something interesting about DNS to this Track's and their attendees attention. Since the whole track will be 90mins and we want to allow as much as talks to take a place it would be good idea to limit any specific talk to 15 mins and keeping it really operational , brief and clear would be great idea. as I said earlier as soon as track details are decided, I will send a second e-mail to let the community know. thank you for your interest. mehmet
