April 2003 - Test - lists.nanog.org

POTS in .IQ
by Eric Brunner-Williams in Portland Maine 12 Apr '03

12 Apr '03

By now everyone probably knows that URUKLINK.NET is or was the only or primary ISP in Iraq. I came across this [1] and I thought that it was interesting. There's two items in the data -- which states are in which "tier" for POTS penetration, and where has POTS growth been negative. I've picked on the Iraq-adjacent states. Another source [2] is Iraq-specific w.r.t. telecommunications, and has a slightly higher penetration rate, prior to 1991. The Soviet Army withdrew from Afganistan on 02.15.89. Sanctions were imposed on Iraq in 1990. The numbers are CPE-to-PSTN w/dedicated port, per 100 persons. .af 1988 0.20 1998 0.00 (last date data available) .jo 1989 7.22 1998 8.34 (9.25 in 2000) .iq 1988 4.00 1998 3.10 (last date data available) .ir 1988 4.05 1998 11.18 (14.90 in 2000) .kw 1988 18.92 1998 23.59 (24.40 in 2000) .sy 1988 5.81 1998 9.38 (10.35 in 2000) .tr 1988 11.70 1998 25.45 (28.00 in 2000) Eric [1] http://www.sesrtcic.org/cgi-local/indquery.pl?indcode=GRPHN [2] http://www.un.org/Depts/oip/dp/dp5/telecomexecsum.html

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600VDC and 802.11?
by Stephen Sprunk 11 Apr '03

11 Apr '03

Anyone know about the compatibility of high-voltage DC systems and 802.11b? The gear itself will be running on 120VAC via an inverter, but 600VDC/300A creates a strong EM field that messes with a lot of off-the-shelf RF gear and even some non-RF electronics. S Stephen Sprunk "God does not play dice." --Albert Einstein CCIE #3723 "God is an inveterate gambler, and He throws the K5SSS dice at every possible opportunity." --Stephen Hawking

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bandwidth estimation tools that `suck the least' [ippm] pathrate & pathload]
by k claffy 11 Apr '03

11 Apr '03

anyone willing to help by sending unsatisfying output back to the knightly development team (with as much information as you have about the infrastructure being gauged) will be of great help to some incredibly talented members of the research community beating at this holy grail trying it out and deciding it doesn't work as well as you need and not sending any feedback that might help the authors improve it doesn't help anyone at all but you knew that already k ----- Forwarded message from Constantine Dovrolis <dovrolis(a)cc.gatech.edu> ----- Date: Thu, 10 Apr 2003 16:47:07 -0400 (EDT) From: Constantine Dovrolis <dovrolis(a)cc.gatech.edu> Subject: [ippm] pathrate & pathload To: ippm(a)advanced.org cc: Manish Jain <jain(a)cc.gatech.edu>, Ravi Shanker Prasad <ravi(a)cc.gatech.edu> We would like to announce a new release of our bandwidth estimation tools: pathrate and pathload. Pathrate measures end-to-end capacity (aka bottleneck bandwidth), while Pathload measures end-to-end available bandwidth. Both tools are available at: http://www.pathrate.org The major differences in the new versions: Pathrate - 2.3.0 ---------------- * The tool has been also tested in Gigabit Ethernet paths. We added functionality to deal with interrupt coalescion at the receiver. * A "quick termination" mode (option -Q) was added for an estimate after just a few seconds. Useful for frequent light-weight measurements. * Support for netlogger output format. Pathload - 1.1.0 ---------------- * The previous version was able to measure available bandwidth only in the 2Mbps-120Mbps range. The latest version has been successfully tested in both low bandwidth paths (dial-up, DSL, cable modems), and in high bandwidth paths (OC-3, OC-12, GigEthernet). If the receiver does interrupt coalescion, the tool can only report a lower bound on the available bandwidth. * The tool can now automatically choose an appropriate bandwidth resolution (previously this was a user-specified parameter). * Support for netlogger output format. Enjoy, Constantinos, Manish, and Ravi. _______________________________________________ ippm mailing list ippm(a)ietf.org https://www1.ietf.org/mailman/listinfo/ippm ----- End forwarded message -----

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RE: 600VDC and 802.11?
by James Smith 11 Apr '03

11 Apr '03

That would be more of a propagation problem. I'm assuming what he wants is near-field problems, like having the gear in the EM field of the of the wiring, and not the path between the antennas... 600VDC/300A? Running Frankenstiens Lab? James H. Smith II NNCSE NNCDS Senior Systems Engineer First Call Response Center The Presidio Corporation -----Original Message----- From: Jack Bates [mailto:jbates@brightok.net] Sent: Friday, April 11, 2003 8:39 AM To: Stephen Sprunk Cc: North American Noise and Off-topic Gripes Subject: Re: 600VDC and 802.11? Stephen Sprunk wrote: > Anyone know about the compatibility of high-voltage DC systems and 802.11b? > The gear itself will be running on 120VAC via an inverter, but 600VDC/300A > creates a strong EM field that messes with a lot of off-the-shelf RF gear > and even some non-RF electronics. > To give you a vague idea, we had an issue with a 5 mile 802.11b run early on. It turns out that the signal was crossing a power line at less than 5 degrees. Cutting sharply across the power line fixed our problem. In general, it's best to just try it and see what happens. -Jack

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RE: Comcast contact
by Jay Stewart 11 Apr '03

11 Apr '03

Can you please post the URL for that address? I've yet to find anyone responsive at Comcast for peering issues, and I looked *ALL* over the PAIX site for the contact you mentioned. Jay Stewart -----Original Message----- From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Scott Granados Sent: Friday, April 11, 2003 12:56 PM To: Vinny Abello Cc: nanog(a)merit.edu Subject: Re: Comcast contact There is a contact on the Paix site who is very responsive and knowledgable I think. He's more peering but could perhaps be a pointer. On Fri, 11 Apr 2003, Vinny Abello wrote: > > Can some network engineer/admin from Comcast contact me off list? Or > if anyone knows how to get in touch with someone at Comcast that is an > network engineer or admin for their network... There seems to be less > than the usual amount of contact information available for their > network people than most ISP's unless I'm just looking in the wrong > places which may be entirely possible. TIA... > > Vinny Abello > Network Engineer > Server Management > vinny(a)tellurian.com > (973)300-9211 x 125 > (973)940-6125 (Direct) > PGP Key Fingerprint: 3BC5 9A48 FC78 03D3 82E0 E935 5325 FBCB 0100 > 977A > > Tellurian Networks - The Ultimate Internet Connection > http://www.tellurian.com (888)TELLURIAN > > There are 10 kinds of people in the world. Those who understand binary > and those that don't. > >

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Comcast contact
by Vinny Abello 11 Apr '03

11 Apr '03

Can some network engineer/admin from Comcast contact me off list? Or if anyone knows how to get in touch with someone at Comcast that is an network engineer or admin for their network... There seems to be less than the usual amount of contact information available for their network people than most ISP's unless I'm just looking in the wrong places which may be entirely possible. TIA... Vinny Abello Network Engineer Server Management vinny(a)tellurian.com (973)300-9211 x 125 (973)940-6125 (Direct) PGP Key Fingerprint: 3BC5 9A48 FC78 03D3 82E0 E935 5325 FBCB 0100 977A Tellurian Networks - The Ultimate Internet Connection http://www.tellurian.com (888)TELLURIAN There are 10 kinds of people in the world. Those who understand binary and those that don't.

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NANOG/ARIN in Chicago
by Susan Harris 11 Apr '03

11 Apr '03

Greetings everyone - NANOG and ARIN are very happy to announce our 2nd back-to-back meetings, NANOG29 and ARIN XII: ----------------------------------- The 2003 Joint NANOG/ARIN Meetings ----------------------------------- October 19 - 24, 2003 Chicago, Illinois ----------------------------------- ARIN is the American Registry for Internet Numbers, www.arin.net. If you've never attended an ARIN meeting, take this opportunity to influence address assignment policy for N. America, a portion of the Caribbean, and sub-equatorial Africa. The striking thing about ARIN meetings is who's in front of the room -- for the most part it's users on the Advisory Council or Board of Trustees, not the ARIN staff. The community has the main voice in ARIN decision-making -- your input plays a huge role in policies for v4 and v6 address requests, allocations, assignments, abuse, and privacy. NANOG will meet Sunday - Tuesday, Oct. 19-21, and ARIN Wednesday - Friday, Oct. 22-24. Looking forward to seeing you then!

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[WAY OT] Re: NANOG/ARIN in Chicago
by Dave Israel 11 Apr '03

11 Apr '03

During the Civil War, it was common for Union politicians to label anything they didn't like as "rebellious" or "treasonous." In the 20th century, the word was "nazi," or, especially the McCarthy era, "communist." Now it is "terrorist." In any case, it is inaccurate, manipulative, and childish, and does not belong on a professional mailing list. Call me a treasonous communist nazi terrorist, but do it off list, please. -Dave On 4/11/2003 at 11:51:31 -0500, Daniel Golding said: > > This is a joke, right? A disagreement over civil aviation and local > politics is being labeled as "terrorism" and for this (completely > off-topic) reason, we are to somehow protest or boycott? I sincerely doubt > that this situation will have any kind of significant impact on NANOG or > ARIN attendance. > > - Dan > > On Thu, 10 Apr 2003, Mark Radabaugh wrote: > > > > > > > > As such, it is not unlikely that mayor Daley's act of terrorism (done in > > the > > > name of security, by the way) has operational impact. Hopefully by > > October, > > > Meigs will be operational and this will be moot. However, if it is not, > > it > > > will be very difficult for me to bring myself to attend. (If it were > > > anything > > > less than ARIN/NANOG, I simply would not attend). > > > > > > If anyone wants more information about the destruction of Meigs field, > > > please see http://www.aopa.org. Please send any comments/questions to > > > me off-list. I suspect the rest of the group doesn't want to hear the > > > flames/etc. > > > > > > Owen > > > (donning nomex now) > > > > Actually I'm glad to see it brought up. As a fellow pilot I am equally > > appalled by the mayors actions. I agree completely with the boycott and > > would like to see this brought to the attention of the city that ARIN/NANOG > > may have trouble attracting members to Chicago due to the terrorist acts of > > their mayor. > > > > Mark Radabaugh > > Amplex > > (419) 720-3635 > > > > > > > >

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dual router vs. single "reliable" router
by David Barak 11 Apr '03

11 Apr '03

Okay, I'll bite... the mentioned file, http://www.nspllc.com/New%20Pages/Reliable%20IP%20Nodes.pdf seems to be fluff to me. There are many assumptions and statements about reliability, but the methodology of how the numbers were reached is not present. If one assumes that one has a router which fails very rarely, this would dramatically affect network design. However, this is an assumption, not a conclusion. The assumption of the paper is that the Alcatel box has ultra-low failure rates, while the Juniper and Cisco boxen have relatively high failure rates. Personally, before I let something like this influence my buying/design decisions, I'd want to see some serious raw data... ===== David Barak -fully RFC 1925 compliant- __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - File online, calculators, forms, and more http://tax.yahoo.com

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Al Jazeera DNS now managed by a Verisign company
by Sean Donelan 11 Apr '03

11 Apr '03

Al Jazeera has finally completed their transfer from Akamai to a Verisign company for DNS service. > dig www.aljazeera.net ; <<>> DiG 8.3 <<>> www.aljazeera.net ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 4, ADDITIONAL: 0 ;; QUERY SECTION: ;; www.aljazeera.net, type = A, class = IN ;; ANSWER SECTION: www.aljazeera.net. 2H IN A 217.26.193.8 ;; AUTHORITY SECTION: aljazeera.net. 2H IN NS ns1.dnsmanaged.com. aljazeera.net. 2H IN NS ns7.dnsmanaged.com. aljazeera.net. 2H IN NS ns6.dnsmanaged.com. aljazeera.net. 2H IN NS ns4.dnsmanaged.com. ;; Total query time: 5103 msec ;; FROM: clifden to SERVER: default -- 127.0.0.1 ;; WHEN: Fri Apr 11 12:16:54 2003 ;; MSG SIZE sent: 35 rcvd: 137

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