October 2000 - Test - lists.nanog.org

Re: NANOG 20 River Rafting *unofficial* Trip
by Nanog20＠aol.com 02 Oct '00

02 Oct '00

Again, AOL is hosting a rafting trip for those of you arriving early in Washington DC for NANOG 20. Please visit http://nanog.aol.com/nanog-raft.htm for additional details. IMPORTANT: Please fax your waiver form with size information (for wet suit) by this Friday, October 6, 2000. regards, -ron

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RE: qwest/JFK meltdown
by Dave Cahill 02 Oct '00

02 Oct '00

I have just talked to someone senior at Qwest regarding the problem at their JFK router and according to him the problem is Cisco related. They have a couple of cases open with Cisco right now and have already swapped out some of the line cards. He stated his team has identified a trend of hardware problems with the VIP 250, 12 port DS3 cards and GigE. He wasn't very happy but they are working on it. It appears they are having a lot of stability problems with Cisco but it still remains to be seen how quickly they fix this problem. The Qwest ticket number for JFK router is # 79806 and they have also opened a ticket to monitor the JFK router # 79972 for anyone interested in calling Qwest for additional information. David Cahill -----Original Message----- From: multics(a)ruserved.com [mailto:multics@ruserved.com] Sent: Monday, October 02, 2000 8:34 AM To: nanog(a)merit.edu Cc: multics(a)ruserved.com Subject: qwest/JFK meltdown I've heard that qwest is having an edge router problem at JFK. Its affecting my network connectivity which is how I learned of it. I don't have an estimated repair time. -- Richard Shetron multics(a)ruserved.com multics(a)acm.rpi.edu NO UCE What is the Meaning of Life? There is no meaning, It's just a consequence of complex carbon based chemistry; don't worry about it The Super 76, "Free Aspirin and Tender Sympathy", Las Vegas Strip.

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qwest/JFK meltdown
by multics＠ruserved.com 02 Oct '00

02 Oct '00

I've heard that qwest is having an edge router problem at JFK. Its affecting my network connectivity which is how I learned of it. I don't have an estimated repair time. -- Richard Shetron multics(a)ruserved.com multics(a)acm.rpi.edu NO UCE What is the Meaning of Life? There is no meaning, It's just a consequence of complex carbon based chemistry; don't worry about it The Super 76, "Free Aspirin and Tender Sympathy", Las Vegas Strip.

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QAZ probes from webtv?
by Dan Hollis 01 Oct '00

01 Oct '00

Anyone else seeing webtv probing your customers for QAZ? The following webtv hosts seem to be probing our dialup customers port tcp/7597: Name: storeless-272.iap.bryant.webtv.net Address: 209.240.199.76 Name: cookie-336.public.rwc.webtv.net Address: 209.240.200.226 Name: storefull-115.iap.bryant.webtv.net Address: 209.240.198.107 -Dan

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Re: Statistical Games Providers Play (RE: availability and resiliency)
by Sean Donelan 01 Oct '00

01 Oct '00

On Sat, 30 September 2000, Alex Bligh wrote: > Excluding force-majeure from availability is not totally unuseful > (provided you can still compare apples with apples), on the basis > that (historically at least) many other things are likely to > cause more worry than failure of your internet/telecoms service > in the event of war/asteroid strike etc. I also think its reasonable to exclude force majeure in a SLA. When I wrote SLA's I excluded all sorts of stuff in the force majeure clause. My point wasn't to suggest it is unreasonable to do so, but customers should understand a provider includes only certain risks in their SLA. Insurance companies are very good for covering the other risks. What drove me crazy was I couldn't get the information I needed to do my job from providers. Fiber cuts happen. I don't want a 99.999% network guarantee, I want an accurate map of my circuits on your network so I can plan where to put my backup circuits. If I could outsource the reliability of my network, it would be great. But the fact is, I was the one who had to live with fallout when my network failed; not the provider. At most large providers, my "dedicated account team" rarely lasted a fiscal quarter let alone a fiscal year. I sometimes think folks, and I was once one of them, are just looking for the provider which promises the highest availability number (100% service guarantee) without realizing some providers are achieving such high numbers by excluding a lot of disruptive events. If everyone included and excluded the same things, you could compare the numbers. But everyone doesn't. So customers need to understand what the numbers mean. It is possible for a provider with a 98% availability guarantee to have better actual performance than a provider promising 100% availability. > Finally, the availability number is meaningless unless there is > a clear way of measuring what period it applies to. Five nines > availabilty over a day is completely different to five nines > availability over a year, if there is a fixed MTTR (think about > it). Ah, Mean Time To Repair. For availability purposes, MTTR is frequently a bigger contributor than MTBF (Mean Time Between Failure). Can you repair one half of a redundant system before the second half fails. > IE availability numbers are *not* useless - but they generally > aren't comparible without looking at the contract, and system > in depth. If you look at what happened in the disk drive market, for a while Seagate and the others waged the battle of MTBF. You could buy a 400,000 hour MTBF drive or a 800,000 hour MTBF drive or a 1.2 million hour MTBF drive. Was there a difference between the drives, in some cases yes. In most cases, you were actually buying the same drive with different extended warranties. Did the difference in MTBF's mean the disk drives never failed? No. If the drive did fail, did you get data back because it was a 1.2 million hour MTBF drive? No. If you didn't have a backup, did Seagate lose their job, or did the computer operator lose theirs? Does RAID held? Yes. Does RAID completely eliminate disk failures? No. If you look at network backbones, almost everyone uses the same vendors, supplying essentially the same equipment, and nearly the same network design. So why would different providers have different availability numbers? Is it just an accident of the statistical series, some providers had their failures earlier but everyone will end up the same in Year Infinity? Or are there real differences, besides price, between providers?

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ICANN vote advocacy
by William Allen Simpson 01 Oct '00

01 Oct '00

-----BEGIN PGP SIGNED MESSAGE----- While I'm thinking about it, here's a bit of advocacy on ICANN board membership. Of course, this may just cause folks to vote contrarily, but participating is important, so get out the vote! I'm putting Karl Auerbach at the top. He's the only one with technical, operational, and legal background. I don't always agree with him on every issue, but he has both depth and breadth, and on that basis is the best choice. He was nominated by popular acclaim. He's also a genuinely caring fellow, and I just plain like him. My backups are Lyman Chapin and Barb Simon. Thay are primarily technical, but have a long association with the Internet and lots of volunteer and professional committee and board experience. Lyman is a former IAB Chair, giving him a bit of a boost in our community. Barb is another nominee by popular acclaim. Lessig is smart and principled, but his Q&A positions are almost identical to Auerbach's. His legal depth may be greater. And of course he has more name recognition than our technical choices. So, those are my top choices. I'm sure many of the others have fine attributes, but we only get to choose one person in this election. I'm ranking the rest alphabetically. -----BEGIN PGP SIGNATURE----- Version: PGP 6.5.1 iQCVAwUBOdcSb9m/qMj6R+sxAQF7AwQA125N3UdY6LUsWrXglTVDToBQwoTmHNeJ +iPG43ARXPbOas/Ea+qso5H7aignHRzIpTqNFd7uwCxgIKpkDqTDYeiNIlX4t820 zrvh+aEz/kqNJgcOGtERxmsN+KymTH9dWkC2WGK3J3lhoIKWFr0PmRw2DxtXBV3m lCot0YMDGhc= =opVC -----END PGP SIGNATURE-----

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ICANN election.com not working reliably
by William Allen Simpson 01 Oct '00

01 Oct '00

-----BEGIN PGP SIGNED MESSAGE----- I've tried the election mechanism this morning at nearly the earliest possible time, and after proceeding through all the pages, and verifying my choices, suddenly the page indicated that I could not proceed at this time. First of all, that's a terrible error message. Content free. Secondly, I noticed a very long URL at the top of my page, most of which was not visible. I copied it into a text editor: https://vote.election.com/icann/error.asp?critical=yes&desc= Component%2EApplyVote+failed&errnbr=50101&errdesc=Invalid+credentials%2E +Your+member+number%2C+PIN+code+and+password+combination+is+incorrect%2E Now, that's dandy. If I'd mis-entered my credentials, I'd expect it to tell me on the first secured page, before entering and verifying my votes. Since I'm just copying and pasting, I'm a bit surprised that there was an error. Just in case, I tried it on the ICANN member pages. It still works! So, it looks like there's a problem in the verification system. I know it's Sunday, early in the morning, but that's when the Board chose to start the voting. Hopefully, somebody is checking for errors. -----BEGIN PGP SIGNATURE----- Version: PGP 6.5.1 iQCVAwUBOdcNJNm/qMj6R+sxAQFVqgP/atu4Kltv4zfveQE3+KJ1v8Uc0F4Y+Pdf GEaIFnIGApgAazuO0i+srl2uluFdckfUBo9KAaIkDgnbcpdGNfV1GqaZ31j2Lo0n NEcoGZ6f53VqBrftnCnde+3UfEaS2xVKL+Lz/xkYrJnv5LT8q2/+36TrSUT2ovK5 B3nhMtU/OV4= =vvTY -----END PGP SIGNATURE-----

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Re: Statistical Games Providers Play (RE: availability and resiliency)
by Sean Donelan 01 Oct '00

01 Oct '00

On Sat, 30 September 2000, Vijay Gill wrote: > There are a lot more variants regarding the routing architecture (IGP > setup, bgp setup, et al), and depending on various failure modes, some are > better than others for a subset of failures and vice versa. True, but in the end does it end up being a zero-sum game? Or are there real differences in performance? I'll pick on a couple of different providers, but we could use anyone. In my experience AT&T has a huge MTBF, over 7 years when I bought circuits. But when the two natural disasters struck at the same time, it would take AT&T several days to get the circuits working again. On the other hand, Sprint had a problem every month or two, but they usually had them fixed in about 20 minutes. What's the trade-off. Over 10 years, the availability numbers weren't that different between AT&T and Sprint. Sprint hypes their SONET fiber network, AT&T hypes their FASTAR network restoration. Is it strictly a question of cost? Although a lot of advertising and sales emphasis is placed on the technology, I haven't found the technical differences between providers affecting the delivered performance. Non-technical factors seem to have a bigger affect.

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