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Re: Verio Decides what parts of the internet to drop
by Danny McPherson 03 Dec '99

03 Dec '99

> Uhh, maximum-prefix is used for the maximum number OF prefixes from a > neighbour Uhh, yeah. Which is what I believe Alex R. was referring to when initially suggesting other methods by which one could control the large numbers of prefixes advertised by some large peers, large numbers of prefixes that cannot be accommodated by today's routers and prefix filters. -danny

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Re: Verio Decides what parts of the internet to drop
by Danny McPherson 03 Dec '99

03 Dec '99

> > > There are ways to get around this (as-path filtering, maximum-paths, etc) > > > that aren't as nazi as one would hope, but will prevent stupidity and > > > provide sanity checking. > > > > Maximum paths deals primarily with ibgp > > Well, thats patently wrong. I don't know how else to respond to this. It's actually "maximum-prefix" in Cisco parlance, perhaps this introduced the confusion. As for Verio's policy of filtering based on registry allocations, I know of several other providers that implement it as well, and have for quite a while. -danny

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BGP recordings
by Sean Donelan 02 Dec '99

02 Dec '99

Besides the Route Tracker at IPMA/Merit, does anyone else record the BGP announcements they hear?

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Re: Seattle - Westin Building The WTO is in town
by Sean Donelan 02 Dec '99

02 Dec '99

My bored source may have exagerated a bit. Another person reported you just needed to go down to the lobby and the guard would arrange for a police escort out of the area. Although I guess I could understand why someone with multiple body piercings and an unusual hair colour would be reluctant to go up to the police and ask for a ride :-) In any case, there was no disruption to service. Although the Starbucks down the street didn't fair as well.

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RE: gTLD DNS RFP
by Newell, Tom 02 Dec '99

02 Dec '99

Sean, The NSI Registry is responsible for the DNS service at the top of the COM/ORG/NET zones and thus the motivation for the RFP. Diversity will be sought through diverse transit, geographical and topological dispersion, etc. If you are implying diversity of organization responsible for serving the zone, the NSI Registry is 100% responsible for serving the zones and is working through this process to put that in a formal framework, a necessary business condition given our contractual obligations. We are trying to do that openly and with the involvement of this community. In terms of the extent of the service performed by the hosting organization, that depends upon the nature of the proposals we receive - we are open-minded. The roots are still roots but that is an RSSAC/ICANN issue. --Tom -----Original Message----- From: Sean Donelan [mailto:sean@donelan.com] Sent: Tuesday, November 30, 1999 10:36 PM To: tomn(a)netsol.com Cc: nanog(a)merit.edu Subject: Re: gTLD DNS RFP On Tue, 30 November 1999, "Newell, Tom" wrote: > NSI recently released an RFP seeking hosts for gTLD DNS > servers for COM/NET/ORG. As it likely reached the "sales" > people at the organizations many of you represent, I > thought it appropriate to send a "heads-up" to this list. Is NSI replacing the current root-servers being used with its own gTLD servers, or is this for the gTLD servers already installed by NSI? Since NSI already controls over 40% of the servers used for COM/NET/ORG, and 40% seems to be the magic number for continued reliable operation of the zones, I would be interested in how diversity will be maintained.

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AT&T Worldnet problem (Re: AS7170 flaps and resulting non-event)
by Sean Donelan 02 Dec '99

02 Dec '99

On Wed, 01 December 1999, John Todd wrote: > C: Could this be related? > http://www.infoworld.com/cgi-bin/displayStory.pl?99121.icatt.htm I > don't think so, but it's an interesting note nonetheless. I don't > see how DNS could be attached to the route flaps, but again I don't > have a crystal ball into AT&T's network. I don't have a crystal ball either, I don't even have a chair. Here is what AT&T posted on their web page about yesterday's event. >At approximately 8:15 AM [EST] on Wednesday, December 1, AT&T began >experiencing a series of service interruptions on its dial Internet Protocol >[IP] platform. The impact was nationwide in scope and affected AT&T's Worldnet >Service, Business IP Dial Service, and portions of its Virtual Private Network >service. AT&T 's IP backbone was not affected by this incident, nor were there >any service disruptions to customers using AT&T's dedicated Internet access >service. >Reports indicate that incorrect routing by another Internet Service Provider >[ISP] generated this problem. That routing error has been corrected, the >network has been stabilized, and service has been restored. >We apologize for any inconvenience these interruptions may have caused. As >always, you can report problems with AT&T WorldNet Service by using the Contact >Us link on the left side of this page. >Thank you for using AT&T WorldNet Service.

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Re: Seattle - Westin Building The WTO is in town
by Randy Bush 02 Dec '99

02 Dec '99

> Actually, they are connected via a skybridge. i knew i was stoopid. but blind is new. randy

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AS7170 flaps and resulting non-event
by John Todd 02 Dec '99

02 Dec '99

Starting on the 19th of this month, the Merit routing report shows that AT&T-DISC(AS7170) is having some serious flapping issues with the Merit route server at the MAE-East (ten million updates in a day, as an example.) Among other things, I'm interested if these flaps are being made to all peers of AS7170 at the MAE-East. If that is the case, then nobody has noticed, or nobody cares, or nobody has raised it in a public forum yet. If the silence has been caused by one of the first two situations, I'm interested in which is the true reason that there has been no hue and cry over this abnormal number of route insertions/removals. A few questions and items to chew on: 1: Is this something that anyone other than Merit is noticing? Could it be that AS7170 just doesn't have that many peers, or that the routes are flapping only to Merit's route server? 2: Is this just being dampened to the point where nobody notices? 3: Is the silence on this issue somehow indicative of the increased speed/memory of core routers in the North American and other routing structures? [main point] If so, then this changes some arguments about who and why one will/will not peer, as well as dragging the corpse of "Sprint filtering" out of the grave.[/main point] 4: Am I just reading this data incorrectly? I don't have a direct peer with 7170 anywhere, so I can't look at my own records for double-checking. Side notes: A: This isn't AT&T's only AS number - they have two others (7018 and 5075) that seem to be used for quite a few announcements. In fact, 7170 may not be the "primary" AS for AT&T - again, I don't have a crystal ball to see how they structure their announcements across the multiple AS'es. B: It's not easily possible for me to find which routes were flapping; could this be just a few routes out of the N that 7170 announces? (See http://www.merit.edu/~ipma/cooked/routing_table/view_in/mae-east/mae-e ast.7170.view.991128 for an exhaustive list of 7170's routes to Merit on the 28th) If it's only a few of the routes, then perhaps dampening by peers simply quashed the rogue networks into oblivion without anyone noticing that these few routes were missing. C: Could this be related? http://www.infoworld.com/cgi-bin/displayStory.pl?99121.icatt.htm I don't think so, but it's an interesting note nonetheless. I don't see how DNS could be attached to the route flaps, but again I don't have a crystal ball into AT&T's network. I've included selected sections from Merit's daily route flap mail. To see a complete list of the messages, browse to http://www.merit.net/mail.archives/html/routing-problems/ for more detail. Largest Sources of BGP Instability ---------------------------------- (announcements + withdraws = total) Dec 01: 1. AT&T-DISC (AS7170) at Mae-East 10432535 + 36800 = 10469335 BGP prefix updates Nov 30: 1. AT&T-DISC (AS7170) at Mae-East 10432535 + 36800 = 10469335 BGP prefix updates Nov 29: 1. AT&T-DISC (AS7170) at Mae-East 11122216 + 16465 = 11138681 BGP prefix updates Nov 28: 1. AT&T-DISC (AS7170) at Mae-East 10256555 + 17732 = 10274287 BGP prefix updates Nov 27: 1. AT&T-DISC (AS7170) at Mae-East 9882016 + 23527 = 9905543 BGP prefix updates . . [similar results in here] . Nov 19: 1. AT&T-DISC (AS7170) at Mae-East 2462647 + 93171 = 2555818 BGP prefix updates [AT&T-DISC does not show up in the mail from the 18th or 17th, leading me to think these flaps started during the measured interval reported on the 19th.] --- JT jtodd(a)loligo.com

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Re: Seattle - Westin Building The WTO is in town
by Sean Donelan 02 Dec '99

02 Dec '99

Some will remember the fun when NATO was in Washington DC earlier this year. Compared to Seattle that was nothing. One person pointed out, don't build NOCs and meet-me rooms in a building connected to the hotel where the US President is staying. Apparently the entire block was "locked down" for a while, and today the Westin is on the edge of the "limited curfew" area. See the newspaper article for more details. http://www.seattle-pi.com/local/lmtd02.shtml One ISP person required a police escort to get into work and another experienced tear gas up close and personal. Another person said you don't want to wear a suit or you might be mistaken for a WTO attendee. Existing services remain unaffected. One person reported some new installations are being delayed until after the WTO leaves town.

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Re: Perceived Y2K problems
by ken harris. 02 Dec '99

02 Dec '99

Eric Germann [09:23 PM 11/30/99 -0500] wrote: :sociological effects, namely, everyone watching the ball drop, then going :off hook to see if they have dial tone, or dialing in to the Internet to :see if it still works. Since most switches aren't designed for 100% off :hook load, anyone seen any studies as to whether the switches will crash :from that? actually, just yesterday i saw a tv commercial from the phone company informing everyone that the phone systems will work and to /not/ go ahead and pick up the phone, right away because that will cause a serious "problem". what the actual outcome of the problem may be they didn't mention (obviously), but i expect it can't be too wonderful if they are advertising that message on television. another one that's been popular, and i've heard, is that there isn't enough "cash" to go around for the demand that will be requested. but like so, banks have issued statements etc. actually my bank's statement included, "warning, carrying excessive amounts of money on you makes you a prime target for robbery." heh. -ken harris !k < ken at arpa dot com >

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