The Cidr Report
This report has been generated at Fri Apr 21 21:48:06 2006 AEST.
The report analyses the BGP Routing Table of an AS4637 (Reach) router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org/as4637 for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
14-04-06182852 120413
15-04-06182821 120427
16-04-06182885 120468
17-04-06182923 120429
18-04-06182914 120565
19-04-06183166 120479
20-04-06183035 120600
21-04-06183285 120840
AS Summary
21893 Number of ASes in routing system
9103 Number of ASes announcing only one prefix
1497 Largest number of prefixes announced by an AS
AS7018 : ATT-INTERNET4 - ATT WorldNet Services
91439872 Largest address span announced by an AS (/32s)
AS721 : DLA-ASNBLOCK-AS - 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').
--- 21Apr06 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 183351 1208366251534.1% All ASes
AS4323 1260 256 100479.7% TWTC - Time Warner Telecom,
Inc.
AS18566 935 186 74980.1% COVAD - Covad Communications
Co.
AS4134 1064 320 74469.9% CHINANET-BACKBONE
No.31,Jin-rong Street
AS721 1008 311 69769.1% DLA-ASNBLOCK-AS - DoD Network
Information Center
AS22773 645 48 59792.6% CCINET-2 - Cox Communications
Inc.
AS6197 1010 483 52752.2% BATI-ATL - BellSouth Network
Solutions, Inc
AS7018 1497 980 51734.5% ATT-INTERNET4 - ATT WorldNet
Services
AS19916 563 65 49888.5% ASTRUM-0001 - OLM LLC
AS855553 63 49088.6% CANET-ASN-4 - Aliant Telecom
AS7757 477 19 45896.0% CCCH-AS4 - Comcast Cable
Communications Holdings, Inc
AS17488 501 50 45190.0% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS4755 766 337 42956.0% VSNL-AS Videsh Sanchar Nigam
Ltd. Autonomous System
AS3602 537 109 42879.7% AS3602-RTI - Rogers Telecom
Inc.
AS9498 572 156 41672.7% BBIL-AP BHARTI BT INTERNET
LTD.
AS17676 484 107 37777.9% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS15270 398 39 35990.2% AS-PAETEC-NET - PaeTec.net -a
division of
PaeTecCommunications, Inc.
AS11492 627 275 35256.1% CABLEONE - CABLE ONE
AS6198 591 242 34959.1% BATI-MIA - BellSouth Network
Solutions, Inc
AS812371 28 34392.5% ROGERS-CABLE - Rogers Cable
Inc.
AS4766 650 307 34352.8% KIXS-AS-KR Korea Telecom
AS6467 374 47 32787.4% ESPIRECOMM - Xspedius
Communications Co.
AS22047 400 81 31979.8% VTR BANDA ANCHA S.A.
AS18101 340 22 31893.5% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS19262 631 313 31850.4% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS6167 342 64 27881.3% CELLCO-PART - Cellco
Partnership
AS3352 309 32 27789.6% TELEFONICA-DATA-ESPANA
Internet Access Network of
TDE
AS5668 534 257 27751.9% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS14654 290 14 27695.2% WAYPORT - Wayport
AS16814 313 45 26885.6% NSS S.A.
AS19115
Re: Is your ISP Influenza-ready?
On Tue, Apr 18, 2006 at 10:53:33AM -0700, David W. Hankins wrote: ... It's like someone intentionally optimized this function specifically to be the most pessimal. ... If you know the word pessimal [malus, pejor, pessimus = bad, worse, worst], you should know that most pessimal is redundant - perhaps allowable for emphasis - and that optimized to be pessimal is so much an oxymoron it must be deliberate. But why not just say pessimized? ;-) -- Joe Yao --- This message is not an official statement of OSIS Center policies.
Re: data center space
On Tue, Apr 18, 2006 at 09:34:41AM -0700, Philip Lavine wrote: Can someone tell me if I am out of luck. I am trying to get a 10x10 cage in New Jersey (Jersey City area) but it seems everybody is at capacity. What happened? My guess (this being NJ) is an aftereffect of the 9/11/2001 disaster. By five years after, most companies who could be affected by such an outage may have relocated a continuing-operations set of machines to one or more colo data centers. I don't know why the data centers would not have expanded to meet the influx, though. -- Joe Yao --- This message is not an official statement of OSIS Center policies.
Re: Is your ISP Influenza-ready?
On Tue, Apr 18, 2006 at 08:29:10PM -0400, Barry Shein wrote: According to the wikipedia's quote of WHO the weighted average mortality rate, which would be across 50 human cases, is 66% in 2006, and 56% across all 194 cases reported since 2004. http://en.wikipedia.org/wiki/H5N1 But this is of cases that were (a) bad enough that the person went to a doctor [mostly in countries where this is rare anyway] and (b) were identified as something other than drink plenty of chicken [or plomik] soup, and it will go away in a few days. Is there a report which extrapolates the UNREPORTED cases and estimates the mortality rate from that? [And does anyone have any basis on which to make these guesses?] -- Joe Yao --- This message is not an official statement of OSIS Center policies.
Re: data center space
At 06:51 AM 4/21/2006, you wrote: On Tue, Apr 18, 2006 at 09:34:41AM -0700, Philip Lavine wrote: Can someone tell me if I am out of luck. I am trying to get a 10x10 cage in New Jersey (Jersey City area) but it seems everybody is at capacity. What happened? My guess (this being NJ) is an aftereffect of the 9/11/2001 disaster. By five years after, most companies who could be affected by such an outage may have relocated a continuing-operations set of machines to one or more colo data centers. I don't know why the data centers would not have expanded to meet the influx, though. I think most of us have expanded. :) I know Focal/Broadwing has space in Jersey City at 1 Evertrust Plaza. Joe, I know you aren't the original poster, but I'm hoping he or she is still reading this thread too. -Robert Tellurian Networks - The Ultimate Internet Connection http://www.tellurian.com | 888-TELLURIAN | 973-300-9211 Well done is better than well said. - Benjamin Franklin
Re: Is your ISP Influenza-ready?
Joseph S D Yao wrote: On Tue, Apr 18, 2006 at 08:29:10PM -0400, Barry Shein wrote: According to the wikipedia's quote of WHO the weighted average mortality rate, which would be across 50 human cases, is 66% in 2006, and 56% across all 194 cases reported since 2004. Is there a report which extrapolates the UNREPORTED cases and estimates the mortality rate from that? [And does anyone have any basis on which to make these guesses?] Let's extrapolate from an event that I know of, and remember. In 1976, a particularly dangerous strain of flu, Victoria, was the influenza du jour. As in most strains, there were two versions: Victoria-B, where your life sucked for a few days, and then you got on with it, and Victoria-A, which was life threatening, and BTW, yet another bird flu entry. I'm not going to post a bunch of links, but if you want entertainment (or validation) influenza victoria 1976 in Google will give you hours of interesting data. I had the A strain, and was gravely ill. My lungs are scarred as though I had had tuberculosis, and I'm grateful that was the only damage. In just the area I lived in, there were multiple deaths reported. The outbreaks were localized, but quite dramatic in those geographical areas where it took off. I don't mean to add to the hysteria, but I also would prefer that you not discount it. Much will depend on your local area, on whether people are tightly clustered (NYC, LA), or thinly populated (Wyoming, North Dakota). -- You can't have in a democracy various groups with arms - you have to have the state with a monopoly on power, Condoleeza Rice, the US secretary of state, said at the end of her two-day visit to Baghdad yesterday. ...No Comment
Re: Is your ISP Influenza-ready?
Joseph S D Yao wrote: On Tue, Apr 18, 2006 at 10:53:33AM -0700, David W. Hankins wrote: ... It's like someone intentionally optimized this function specifically to be the most pessimal. ... If you know the word pessimal [malus, pejor, pessimus = bad, worse, worst], you should know that most pessimal is redundant - perhaps allowable for emphasis - and that optimized to be pessimal is so much an oxymoron it must be deliberate. But why not just say pessimized? Oh, stop being such a pessimist. :-) -- Jay Hennigan - CCIE #7880 - Network Administration - [EMAIL PROTECTED] NetLojix Communications, Inc. - http://www.netlojix.com/ WestNet: Connecting you to the planet. 805 884-6323
Re: Is your ISP Influenza-ready?
On Fri, Apr 21, 2006 at 07:51:06AM -0700, Etaoin Shrdlu wrote: Joseph S D Yao wrote: (stuff) ... where it took off. I don't mean to add to the hysteria, but I also would prefer that you not discount it. Much will depend on your local area, on whether people are tightly clustered (NYC, LA), or thinly populated (Wyoming, North Dakota). E.S., I apologise if I sounded like I wished to discount any danger. There is a possibility of danger. There often is. I may just be tired of people making noises as if this particular danger were guaranteed. Although it is guaranteed that SOME disaster will befall us, at SOME time, and so we should in general prepare for A disaster, there is no guarantee that this is that one (nor that it isn't!). I also have enough trouble fully comprehending the entire theory of statistics that I feel it necessary to question when a study based on the 50 worst cases is used to extrapolate to the entire population. And I am a mathematician by nature and training. Just, it would seem, not THAT kind of a mathematician. ;-) -- Joe Yao --- This message is not an official statement of OSIS Center policies.
Re: Is your ISP Influenza-ready?
On Fri, Apr 21, 2006 at 08:06:25AM -0700, Jay Hennigan wrote: Joseph S D Yao wrote: On Tue, Apr 18, 2006 at 10:53:33AM -0700, David W. Hankins wrote: ... It's like someone intentionally optimized this function specifically to be the most pessimal. ... If you know the word pessimal [malus, pejor, pessimus = bad, worse, worst], you should know that most pessimal is redundant - perhaps allowable for emphasis - and that optimized to be pessimal is so much an oxymoron it must be deliberate. But why not just say pessimized? Oh, stop being such a pessimist. :-) Optimally, it would be so. -- Joe Yao --- This message is not an official statement of OSIS Center policies.
A proposal - was Re: Is your ISP Influenza-ready?
How about this? I will not post anything to NANOG that discounts the hysteria. Yall will take the bird flu discussion (and the discussion of the meaning, origin and proper usage of pessimal for crissake) elsewhere. Deal? Etaoin Shrdlu wrote: ...I don't mean to add to the hysteria, but I also would prefer that you not discount it...
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 [EMAIL PROTECTED] If you have any comments please contact Philip Smith [EMAIL PROTECTED]. Routing Table Report 04:00 +10GMT Sat 22 Apr, 2006 Analysis Summary BGP routing table entries examined: 187104 Prefixes after maximum aggregation: 103330 Unique aggregates announced to Internet: 91523 Total ASes present in the Internet Routing Table: 21984 Origin-only ASes present in the Internet Routing Table: 19122 Origin ASes announcing only one prefix:9094 Transit ASes present in the Internet Routing Table:2862 Transit-only ASes present in the Internet Routing Table: 61 Average AS path length visible in the Internet Routing Table: 3.5 Max AS path length visible: 29 Prefixes from unregistered ASNs in the Routing Table: 5 Special use prefixes present in the Routing Table:0 Prefixes being announced from unallocated address space: 11 Number of addresses announced to Internet: 1509815456 Equivalent to 89 /8s, 253 /16s and 244 /24s Percentage of available address space announced: 40.7 Percentage of allocated address space announced: 60.1 Percentage of available address space allocated: 67.8 Total number of prefixes smaller than registry allocations: 92315 APNIC Region Analysis Summary - Prefixes being announced by APNIC Region ASes:39292 Total APNIC prefixes after maximum aggregation: 16461 Prefixes being announced from the APNIC address blocks: 37000 Unique aggregates announced from the APNIC address blocks:18194 APNIC Region origin ASes present in the Internet Routing Table:2545 APNIC Region origin ASes announcing only one prefix:718 APNIC Region transit ASes present in the Internet Routing Table:393 Average APNIC Region AS path length visible:3.5 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 222429920 Equivalent to 13 /8s, 66 /16s and 2 /24s Percentage of available APNIC address space announced: 69.5 APNIC AS Blocks4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary Prefixes being announced by ARIN Region ASes: 97380 Total ARIN prefixes after maximum aggregation:57484 Prefixes being announced from the ARIN address blocks:76450 Unique aggregates announced from the ARIN address blocks: 29408 ARIN Region origin ASes present in the Internet Routing Table:10646 ARIN Region origin ASes announcing only one prefix:3990 ARIN Region transit ASes present in the Internet Routing Table: 987 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 26 Number of ARIN addresses announced to Internet: 295772672 Equivalent to 17 /8s, 161 /16s and 34 /24s Percentage of available ARIN address space announced: 73.5 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 35840-36863 ARIN Address Blocks24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary Prefixes being announced by RIPE Region ASes: 37242 Total RIPE prefixes after maximum aggregation:24873 Prefixes being announced from the RIPE address blocks:34282 Unique aggregates announced from the RIPE address blocks: 23106 RIPE Region origin ASes present in the Internet Routing Table: 7902 RIPE Region origin ASes announcing only one prefix:4119 RIPE Region transit ASes present in the Internet Routing Table:1299 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 20 Number of RIPE addresses
Re: data center space
Joseph S D Yao wrote: On Tue, Apr 18, 2006 at 09:34:41AM -0700, Philip Lavine wrote: Can someone tell me if I am out of luck. I am trying to get a 10x10 cage in New Jersey (Jersey City area) but it seems everybody is at capacity. What happened? My guess (this being NJ) is an aftereffect of the 9/11/2001 disaster. By five years after, most companies who could be affected by such an outage may have relocated a continuing-operations set of machines to one or more colo data centers. I don't know why the data centers would not have expanded to meet the influx, though. Five years after 9/11 you would think that people would have located business continuity ops much further away (assuming the businesses are based in NYC) than NJ. I'm sure that regulations require them to be x miles or in another state. But all things should considered... even the capability for major catastrophic incident(s) to affect primary and (nearby) secondary sites. I think the reasons are probably due to companies/governments thinking (hoping?) that in the event of a catastrophic event the business would be able to get ppl from site A to site B. To me it is ridiculous to assume that anyone would be left at site A, or even in the vicinity of site A. And if they are still around site A after a catastrophic event, would they behave normally and could they be counted on (families, fears, trauma, etc)? I'm an employee, but in desperate times my family comes first (that is a no brainer decision that every CIO should think about). Put your major data/ops centers on different continents, or at least on different coasts. Not big enough to do that? Outsource to someone who is. Don't want to spend the money? Partner with a non-competing similar business that is strategically located away from yours. Don't do the minimum to insure your business survival, do the maximum. Disclaimer: I work for someone who provides outsourcing services including the area of business continuity. -Jim P.
