May 2005 - Test - lists.nanog.org

Re: On the record - debunking technical fallacies
by David Barak 03 May '05

03 May '05

--- Dean Anderson <dean(a)av8.com> wrote: > > On Tue, 3 May 2005 Michael.Dillon(a)radianz.com wrote: > > I believe it is still necessary (and a good thing) > to > > post messages on the record that debunk technical > fallacies. > > Thats right. That's why I debunk them. The lying > children call me names. > They really hate it when you debunk their fallacies. <sigh> I personally evaluate individual posters with the following in mind: the more an individual has been willing to publicly assert things which I know to not be true, the less credit I give that individual's opinions with regard to things about which I am not an expert. The converse is true as well. Dean has weighed in on topics such as router architecture and the ubiquitousness of packet-based-load-balancing in backbone networks, and been thoroughly wrong. Lots of people demonstrated his wrongness in these things, so I feel no need to recap. I have no connection to ISC, and have no personal axe to grind. David Barak Need Geek Rock? Try The Franchise: http://www.listentothefranchise.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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FCC Approves Sale Of Tyco Network To India's Tata Unit (VSNL)
by Fergie (Paul Ferguson) 03 May '05

03 May '05

FYI. http://www.techweb.com/wire/networking/162101115 - ferg -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(a)netzero.net or fergdawg(a)sbcglobal.net ferg's tech blog: http://fergdawg.blogspot.com/

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OSP/ISP Labeling Conventions
by Aaron Glenn 03 May '05

03 May '05

Does anyone have, or know of, example naming/labeling conventions for outside and inside plant cabling? I came across more than a few mentions of TIA-606, but couldn't find an actual copy of it (didn't look very hard, not a telephone person, so I'm going to assume it's one of those "pay for a big, thick book" type standards). Between muxes, fiber types, interfaces, and building codes, I can't decide what's too much information for a name/label or too little. any and all suggestions/comments/help is appreciated, aaron.glenn

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Re: Slashdot: Providers Ignoring DNS TTL?
by sthaug＠nethelp.no 03 May '05

03 May '05

> > First of all, let's ditch the term "PPLB." The usual alternative to per > > packet load balancing (what's been being talked about here) is per prefix > > load balancing, which would also be "PPLB." The abbreviation is therefore > > more confusing than anything else. > > Err. No, that would be worse. "Per prefix" load balancing is an artifact > of the Cisco route cache. The route engine (ie the route table) isn't > queried for every packet. Instead the route in the route cache is used. > One doesn't configure "per prefix" load balancing. One configures load > balancing, which adds multiple routes into the route table. Modern Cisco routers do not use a "route cache", they use a fully populated forwarding table. And load balancing is automatic if you have several equal cost routes. > The route > cache then causes only one of these routes to be used. On cisco, to > enable PPLB, you turn off the route cache. Many modern Cisco routers can perform per-packet load balancing without doing process switching (but this needs to be explicitly configured). > On Juniper, you configure it > to put multiple routes in the route table. Its actaully more likely to > happen on Junipers, because unless you configure additonal policies, you > get load balancing on divergent links as well as non-divergent links. On Modern Juniper routers cannot do per-packet load balancing *at all*. It is correct that the configuration statement says "per-packet", however it is really per-flow (and this is well documented). See for instance the description of Internet Processor II ASIC load balancing at http://www.juniper.net/techpubs/software/junos/junos70/swconfig70-policy/ht… I'm afraid your statements show a certain lack of knowledge about modern router architectures. Steinar Haug, Nethelp consulting, sthaug(a)nethelp.no

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Looking for fiber transport
by Dan Lockwood 03 May '05

03 May '05

Are there any sales people lurking that might have fiber in the Palo Cedro area of California. Contact me off list please. Dan

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vonage contact?
by Gadi Evron 03 May '05

03 May '05

I have tried to find a working Vonage security contact for a few weeks now about a vulnerability... no luck. Anyone here can help? Thanks and sorry for the semi-OT post, Gadi.

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Virus's do not wait for elections :)
by Colin Johnston 03 May '05

03 May '05

Hey folks, just saw this info on UK Gov's ITSafe site http://www.itsafe.gov.uk/library/news/2005-news-02.html Call me old fashioned if you want but this seems crazy, If you ask me election time is a time where Gov computers and home computers should be protected more especially if E-Voting was to happen. Duh, we wont publish because cabinet office guidelines say we should change the advice and mention a 45 minute internet meltdown :) Colin Johnston colinj(a)mx5.org.uk

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RE: FCC To Require 911 for VoIP
by Hannigan, Martin 02 May '05

02 May '05

> -----Original Message----- > From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of > Jay R. Ashworth > Sent: Monday, May 02, 2005 3:14 PM > To: nanog list > Subject: Re: FCC To Require 911 for VoIP > > > > On Sun, May 01, 2005 at 10:56:57PM -0400, Hannigan, Martin wrote: > > > The PBX intercepts the call and uses special trunks to the PSAP; > > > it also has to send data telling where the caller is. > > > > There are no special trunks to the PSAP from a PBX. > > Actually, Martin, there are. > > For E-911 campus-type service, at least. > > You apparently need to use either a PRI or a CAMA trunk to extend the > calling PBX extension number to the PSAP, so it can ALI the > appropriate > location for the dispatcher. > > See > > http://www.911etc.com/pbx_solutions.html > as well as > http://www.xo.com/products/smallgrowing/voice/local/psali/ Two managed services? I'd prefer not to digress to PBX's. The ss7 component more interesting, and, I would find arguing the technical merits of the solution more satisfying than arguing with google queries. The only think interesting is that they are supporting the theme of the thread, 911, $call proto, and SS7, all dependant on each other YMMV, but I think I've reached my public posting limit for the day. Best, -M<

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Anyone shopping gensets lately?
by Dan Lockwood 02 May '05

02 May '05

I've been shopping for a 100kw genset and have received some widely varrying prices. If you have some experience in this area would you mind giving me a ping off list? I'm trying to decide if these dealers are out of their mind or if I'm just out of touch. The high end was $18,350 which just seems too high. The stats for what I am comparing are below. Thanks, Dan 100kW Cat, Cummins or Onan with low hours Sound attenuated enclosure 150 gallon or greater, dual wall, fuel tank. Block Heater Electronic governor PMG Excitation system Battery charger

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Re: FCC To Require 911 for VoIP
by Fergie (Paul Ferguson) 02 May '05

02 May '05

It appears that yet another state AG is going after Vonage -- this time Michigan: http://www.networkingpipeline.com/news/162100463 - ferg -- Sean Donelan <sean(a)donelan.com> wrote: You mean like the dozens of dire warnings Vonage has in their product to repeatedly remind less clueful and home users to register the correct location information for their phone. And yet, Vonage is still being sued by an State Attorney General. -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(a)netzero.net or fergdawg(a)sbcglobal.net ferg's tech blog: http://fergdawg.blogspot.com/

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