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Eliminate Dependency on Telefonica in Brazil?
by Murphy, Brennan 25 Jun '01

25 Jun '01

Consider the following *hypothetical*: Company X comes to believe that one of the best things it could do to achieve reliability on its circuits in Brazil is to reduce or eliminate its dependency on Telefonica for "last mile" support/provisioning. Are there any options available to such a Company? If so, which might be best: microwave, satellite, cellular, etc? Which vendors might be investigated and considered for these services? Any difference between VPN and point to point circuits? If you were goign to build a large scale web presence in Brazil...what's your top list of possible circuit providers? Reliability is valued over cost. I guess to put the query in nanog mailing list terms.....who could I go with to ensure I'm a good BGP neighbor in Brazil? I know some may find the above humorous since if you insert Verizon, BellSouth, etc in place of Telefonica...the hypothetical may not change much. :-) No offense to the Bells...when I pick up the phone 99.999% of the time I have dial tone--which I appreciate. :-) But it costs $$$... Thanks!

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Warning: AS14897 leaking routes
by nanog-poster＠axu.tm 25 Jun '01

25 Jun '01

Hello, It appears that AS14897 has decided to leak AS701's (UUnet) full routing table to AS2548 (DIGEX/Intermedia Communications) who are accepting it and announcing it on. -- Aleksi Suhonen / Axu TM Oy Internetworking Consulting Contact Info: AXU-RIPE

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Re: Global BGP - 2001-06-23
by Sean Donelan 25 Jun '01

25 Jun '01

Yes, but I guess you'll have to wait for the official press announcement since everyone wants to keep what happened under NDAs. One way to sure-fire attract the attention of reporters is to claim something is a secret. Its like waving a red cape in front of a bull. Those that don't remember their history are doomed to repeat it. Anyone remember why NERC, NRIC and mandatory goverment reporting of outages in other industries came to be? On Sun, 24 June 2001, lucifer(a)lightbearer.com wrote: > Out of curiosity - did anyone see a duration of significanlt instability > in the global routing tables on Saturday afternoon? Without violating NDA, > all I can say is that it resembled a historic event involve a bad route, > Ciscos, and Bay routers (only this time, it was a bad route, Ciscos, and > <X> vendor whom I cannot name but is being soundly beaten with wet noodles > to resolve the issue). The bad route, and instability, were seen across > all of our transit vendors (all "household" names of transit service). > > Anyone else see this sort of event, or further details on the cause?

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BGP announcements 'stuck' in route-reflector
by Pete Kruckenberg 25 Jun '01

25 Jun '01

I think this may be re-hash, apologies if so. Several people have told me Cisco IOS 'used' to have a well-known bug related to route-reflectors (clients), where they would ignore BGP withdraw messages and continue to announce routes (including full original AS path). I can duplicate this type of problem with one upstream provider (but not the other), I am trying to help them help me (as they seem to be somewhat at a stand-still resolving the problem). So far I've only gotten somewhat vague information, and haven't been able to find anything specific myself. Any pointers (Cisco bug ID, IOS releases with the problem and those that fixed it, etc) would be helpful. Thanks. Pete.

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Re: Operational Content, I think...
by George William Herbert 25 Jun '01

25 Jun '01

There are plenty of things in the Grainger and similar catalogs. Get either the complete one, or the "Materials Handling" subset catalog. -george william herbert gherbert(a)retro.com

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DDOS anecdotes
by smd＠clock.org 24 Jun '01

24 Jun '01

Some of you may find http://grc.com/dos/grcdos.htm very interesting. Sean.

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Re: Operational Content, I think...
by prelude＠mindspring.com 24 Jun '01

24 Jun '01

I've used boxes as a brace, or mounted a shelf or another piece of equipment immediately below(or used already mounted equipment) to hold up stuff while I put down the screwdriver and slid it out. Most of the time i'm sure i've violated OSHA by doing it. This might be better answered on robbie's datacenter mailing list (datacenter(a)shorty.com) andrew still looking for a job deepak(a)ai.net wrote: > This comes up every now and then, and I still haven't seen a good solution, so here is the situation. Every now and then, the graveyard maintenance shift (read: few people) needs to mount a 7' tall or 600 lb piece of equipment we've all come to know and love in a rack. While pad jacks are available to move them around the datacenter floor, equipped with friendly hydraulics and all, there is a piece missing. Is there a common-sense piece of equipment available that 1 person can operate that will support a very bulky, rackmountable piece of equipment so the same, single person can mount/unmount it near the top of a rack? I have seen plenty of solutions for this on warehouse floors, but most datacenters don't have the ceiling height for track-crane. I don't know how people handle the 15' relay racks either now that I am sharing my gap in knowledge. Your advice, suggestions and even jokes are appreciated, but remember, I'm armed. :) Deepak

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Re: BGP instability (was Re: Exodus Down)
by Andy Bradford 24 Jun '01

24 Jun '01

Thus said "Vivien M." on Sun, 24 Jun 2001 00:05:50 EDT: > > the following != "implies agreeing to an NDA" ?? > > 3. The information received via the list is considered > > confidential information, not to be reproduced in any form > > without prior written approval of Exodus. > > I hate to argue on NANOG about this, but #3 seems to me like it's an NDA > (although a rather informal one), for all intents and purposes. If they aren't encrypting the list traffic, then in reality, it isn't ``private'' or ``confidential'' email now is it? :-) Andy -- [-----------[system uptime]--------------------------------------------] 12:36pm up 46 days, 15:14, 7 users, load average: 1.25, 1.29, 1.24

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BGP instability (was Re: Exodus Down)
by Sean Donelan 24 Jun '01

24 Jun '01

According to Exodus' trouble ticket it is a BGP instability between several locations in their network and with BGP customers. Whether it was a security issue, vendor bug or operator error hasn't been determined yet. Exodus customers should contact Exodus customer service for more information, reporters should contact Exodus media relations for more information. I don't know if Exodus will have any public statement. On Sat, 23 June 2001, "Richard A. Steenbergen" wrote: > On Sat, Jun 23, 2001 at 06:51:51PM -0400, mike harrison wrote: > > Maybe all this DDOS discussion is what killed Exodus? > > > > Websites and services all over the place seem to be down. > > Including my favorites like freshmeat, slashdot... > > and one of our e-commerce credit card processors: CyberSource > > > > The common route seems to take them into Exodus.net but not out again. > > > > Any idea whats up? > > Maybe they couldn't pay the bills and someone reposessed their routers? :P

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RE: DDOS anecdotes
by Bohdan Tashchuk 24 Jun '01

24 Jun '01

> So what do we do about it? There are 10th of thousands of "0wned" machines > out there. 10.000 machines sending one SYN per second to somewhere > constitutes a 6mbit SYN flood that'll make almost any web server get into > trouble. 10 SYNs per second and we're really talking traffic here. From > spoofed sources because ISPs do not source address filter? Gah. Basically > untraceable. Wouldn't it be poetic justice if/when these "Owned" Windoze machines turn their attentions to www.microsoft.com? That would get Microsoft's attention. I don't care how big their pipes or how widely distributed their servers. A DDOS like this would be devastating.

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