Re: Risk of Internet collapse grows

> last year we *measured* isp maps as part of a research project called > rocketfuel and found that the marketing maps can differ significantly from > the real ones quite a bit because of lack-of-detail, outdated-ness, or > optimistic-projections. a paper describing the methodology and the maps >

Re: Odd DDoS, anyone else seen this?

> Looked just like a regular SYN flood to the target IP. Not sure why they > picked source addresses that were so obviously bogus though. > > Can anyone think of a reason why this sort of traffic should be routed at > all? Does anyone actually drop hosts on to addresses ending in x.x.x.0? x.x

Re: DNS 101

On Fri, 2002-11-29 at 18:07, Phillip Vandry wrote: > > I'm looking for a bit of DNS help here... > > > > We've been doing a bit of work that involves looking up the real > > authoritative nameservers for domains that we believe we are > > authoritative for, and have run into a spot of trouble whe

Re: Spanning tree melt down ?

Unnamed Administration sources reported that Marshall Eubanks said: > > > I just heard that NPR is about to do a piece on this - it should air in > a few minutes... Immediate cause: Someone tried to move a multi-gigabyte file. -- A host is a host from coast to [EMAIL PROTECTED] & no one

Re: Spanning tree melt down ?

I just heard that NPR is about to do a piece on this - it should air in a few minutes... Marshall On Friday, November 29, 2002, at 03:32 PM, Stephen Sprunk wrote: Thus spake "Robert A. Hayden" <[EMAIL PROTECTED]> I'm still failing to see why this required a $3M forklift of new equipment to

Re: DNS 101

From: "Damian Gerow" <[EMAIL PROTECTED]> > Could I ask people with domains ending in .ca to do lookups of type NS > for that/those domain(s) against all the ca. nameservers, and let me > know if you see anything weird? Specifically, can you look at the > ANCOUNT response? > > Just looking to see

Re: Risk of Internet collapse grows

On Fri, 29 Nov 2002, Stephen Sprunk wrote: > How much of this research is based on marketing maps on the ISPs' web sites, > versus actual maps of the networks in question? Most "tier 1" ISPs won't > even let their vendors see the latter. last year we *measured* isp maps as part of a research

Re: Spanning tree melt down ?

I would be more likely to say that, then he need be a physician with management skills. I think Dan made this point already in his post. I have tremendous respect for physicians having grown up in that field. But they tend to be so smart that they get themselves in trouble, or have trouble k

Re: Spanning tree melt down ?

A good question, Rafi. IMHO, a CIO at a hospital or other large, technology-intensive institution should have a very solid IT background. by preference, it is someone who has come up the ranks from development, systems administration, or network engineering, perhaps gotten an MBA, and gone into t

Re: Spanning tree melt down ?

## On 2002-11-29 15:05 -0600 Daniel Golding typed: DG> DG> DG> Yes, I read his bio. I'm sure he's quite the techie amongst his fellow DG> physicans, and I think thats a great thing. However, its more than just a DG> bad idea to put someone who isn't completely proficient in a job like this D

Re: Spanning tree melt down ?

Yes, I read his bio. I'm sure he's quite the techie amongst his fellow physicans, and I think thats a great thing. However, its more than just a bad idea to put someone who isn't completely proficient in a job like this - its bad for the patients. If you want to run a shoe company, and put a shoe

Re: Spanning tree melt down ?

Thus spake "Robert A. Hayden" <[EMAIL PROTECTED]> > I'm still failing to see why this required a $3M forklift of new equipment > to correct the problem. Was this just Cisco sales pouncing on someone's > misfortune as a way to push new stuff? Environments with a STP diameter of 10+ are unlikely t

DNS 101

I'm looking for a bit of DNS help here... We've been doing a bit of work that involves looking up the real authoritative nameservers for domains that we believe we are authoritative for, and have run into a spot of trouble when it comes to looking up ca. sub-domains. Could I ask people with doma

Re: Spanning tree melt down ?

Thus spake "Scott Granados" <[EMAIL PROTECTED]> > Just a data point here, most hospital networks and it departments > are headed by Doctor's. In insurance companies, the networks are run by claims adjusters. In banks, they're run by loan officers. And in airlines, they're run by unionized pilot

Re: Spanning tree melt down ?

Thus spake "Daniel Golding" <[EMAIL PROTECTED]> > It appears what really happened is that they put an emergency room doctor > in charge of a critical system in which he, in all likelyhood, had > limited training. In the medical system, he was trusted because of he was > a doctor. The sad thing abo

Re: Spanning tree melt down ?

Thus spake "Eric Gauthier" <[EMAIL PROTECTED]> > > > Anyone have any idea what really happened : > > http://www.boston.com/dailyglobe2/330/science/Got_paper_+.shtml I can't speak to exactly what happened because of NDA, but I think I can help NANOGers understand the environment and why this happe

Re: Risk of Internet collapse grows

Thus spake"Irwin Lazar" <[EMAIL PROTECTED]> > Thought this might be worth passing on: > http://news.bbc.co.uk/2/hi/technology/2514651.stm > > > There is a recent book out called "Linked: The New Science of Networks" > which details the potential

Re: Spanning tree melt down ?

Well, yes, they were. But don't blame Cisco - its not like they held a gun to anyone's head. Of course, there is also the possibility that the hospitol IT folks said "if you had just agreed to our capital requests last year, none of this would have happened" and the money tap got turned on. This

Re: Risk of Internet collapse grows

The problem isn't so much the latency - although that is a problem. Any researcher approaching this problem must understand that their result are only as good as their data. In this case, assuming that Boardwatch network maps are correct or, in fact, anything other than a marketing fantasy, is a

Re: Spanning tree melt down ?

Radia Pearlman lives only a few miles away - they could have asked her for a quote :) However, I would not be too harsh towards Dr. John - it is common practice in specialty organizations to put a member of the club in charge of every department, even if most of the decisions are actually ma

Re: Spanning tree melt down ?

Unnamed Administration sources reported that Daniel Golding said: > > > "It was Dr. John Halamka, the former emergency-room physician who runs > Beth Israel Deaconess Medical Center's gigantic computer network" > > It appears what really happened is that they put an emergency room doctor > in c

Re: Spanning tree melt down ?

Marshall, "It was Dr. John Halamka, the former emergency-room physician who runs Beth Israel Deaconess Medical Center's gigantic computer network" It appears what really happened is that they put an emergency room doctor in charge of a critical system in which he, in all likelyhood, had limited

Re: South Asia Network Operators Group (SANOG)

On Thu, 28 Nov 2002, Bill Woodcock wrote: > For everybody else, yes, I know I'm being grouchy.I just find this kind > of behavior incredibly offensive; this kind of reality-defying jingoism is > one of the most embarassing things about being identified as an American > while travelling.Happy Than

Re: Federal Reserve Risks Collapse Re: Risk of Internetcollapse grows

Is this selective argumentation? I agree that the proper assumptions need to be made for research. This is the whole reason I started posting here in the first place, and the request I made at the end of the post - help making sure assumptions are correct. What you decided to attack on the p

RE: South Asia Network Operators Group (SANOG)

On Thu, 28 Nov 2002, Gordon Cook wrote: > > In 99 and 2000 there was an internet cafe in Namche. It depended > for connection to the outside world on a microwave link on towers > between Lukla and Jiri. In January 2001 the Maoists blew up the > repeater towers leaving namche and the everest reg

The Cidr Report

This report has been generated at Fri Nov 29 21:45:21 2002 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 Hist

RE: South Asia Network Operators Group (SANOG)

Wow! One statement about unrest in a country and the flames hit the ceiling. I've travelled to over twenty countries (incl, one of the two listed below), many others hostile...and the news about them are very often not too far off the mark. I'm not trying to dissuade people from attending the conf