April 2007 - NZNOG - lists.nznog.org

Re: [nznog] MP3 streaming data usage
by Richard Naylor 15 Apr '07

15 Apr '07

At 03:38 p.m. 16/04/2007 +1200, Neil Gardner wrote: >Ergh... Hate to say this, but don't you have that 10 bits to the byte >thing approximately ass-backwards? No. As I said, I come from an Ancient World (TM), where we debugged protocols like DDCMP with a Tek Logic Analayser, scope or logic probe. None of this Ethereal stuff, ethernet hadn't escaped from PARC and Vint was still drawing on envelopes. RS-232 was modern, current loop was till very active (sorry, no pun intended). (Probably Michael Newberry is the only one who will get it anyway, Andy and Sid say they're too young, and the others are looking blank) Each Byte is (or was) a START bit, 8 data bits, PARITY and a STOP or IDLE bit. So we always approximated it to 10 bits. (different devices handle parity bits different ways, it used to be that if there was no parity, no bit was used. LSI USARTS started the trend towards always having a bit used. This is a world where a serial port took up a whole UNIBUS slot (ie a card 400mm by 200mm). As I said, its an approximation for budgeting purposes and comes from an ancient era. Have you found the beer yet ? R

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Re: [nznog] Affordable Voltage Monitoring over Ethernet?
by Richard Naylor 15 Apr '07

15 Apr '07

At 04:10 p.m. 16/04/2007 +1200, Dan Clark wrote: >Gidday, > Just wondering if any network operators etc here are using or have seen > any kind of device that can measure voltage/current out there somewhere > on a network and we can interrogate it remotely and may even send alerts > etc if drops below threshold etc? >Would have to be resonably affordable, and in simple kit form or off the >shelf. > >If nothing available that anyone can think of I may develop something >along these lines, cheap, simple, ethernet, and probably 12V >Open for discussion if anyone remotely interested. google for a Link-10 or Link-20, I think they now do ethernet, it used to be serial, but you just chucked in a Lantronix thingy

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Re: [nznog] MP3 streaming data usage
by Richard Naylor 15 Apr '07

15 Apr '07

At 02:49 p.m. 16/04/2007 +1200, Neil Gardner wrote: >Dammit - I know we've been asked to stop this, but now something >interesting has happened... you found the beer ? >Richard, you, who I know has great experience in this, have posted >figures that are UNDER my very basic but probably right theoretical >minimums > >How do you fit 3600 seconds at 128kbps into 46MB ? I get 56.25MB... I have this ancient spreadsheet with a few assumptions.... I basically round 10bits to the byte to cover overheads in the packet, etc. So a data rate of say 128kbps is 12.8KB per sec or 0.13Mbps 768KB per minute or 7.68Mbps 46080 KB per hour or 460.9 Mbps or 46.08 MBytes per hour Remembering that you will get silence and various other things (outages, etc) it will always be an approximation. It just gives you a feel for the order of magnitude of the bill :-) Most stations actually have a second stream in reserve for special "promotional" occassions and they kick them into life every now and then, just to muck up the stats. The biggest use of it has been to work out that a 10GB plan is OK for radio stations at 32Kbps streams. Now that 40+GB plans are out, folks are looking at webcams again and it looks like we can stream a camera and stay inside a 40GB plan at 128k video, which isn't too bad looking. I should probably rework the spreadsheet for HD streams at 10Mbps. It looks like 5TB a month. And yes, IPV6 and multicast will solve all our problems, including world hunger and the endless shortage of beer. But I'm showing my age......

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Re: [nznog] IPv6 Incentive
by Scott Weeks 14 Apr '07

14 Apr '07

--- andy(a)nosignal.org wrote:---------------- ip is a means to an end, I don't craft packets for fun, I do work or have fun, and ip occurs as a way to send my messages from A to B. --------------------------------------------- ding, ding, ding! From the many lists discussing these issues recently, we finally have a winner! Most folk don't care about v4, v6, v8 or v<insert stuff here>. They want to do something and they 'just want it to work'. 99.999% couldn't give less than a crap how that happens. scott BTW 6,525,170,264 x .00001 = 65250 That's this: World — Population: 6,525,170,264 (July 2006 est.) https://www.cia.gov/cia/publications/factbook/print/xx.html times one minus five nines 65250 is about how many of there are who do give more than a crap about how that happens. Beer...MMMM... 8-)

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[Fwd: Re: IPv6 Incentive]
by Gerard Creamer 12 Apr '07

12 Apr '07

On 13/04/2007 4:24 p.m., Craig Whitmore wrote: >> I'm not a porn fan myself, but from other types of media, 10G isn't that >> much. >> Maybe if they put 1TB of porn and 1TB of free tv content from a major >> studio, then we'd have an experiment. >> Would it be better to be Geek TV (Dr Who, Firefly, etc) or Jo Public TV (Lost, Grey's Anatomy, all 500 seasons of Coro St etc)? I think Geek TV would get more drive for it. Like it would happen though. >> > > There is some content at http://www.ipv6porn.co.nz. (If you have IPv6) Looking at http://www.v6.co.nz/ on the 'Who Provides IPv6' there's nothing - is there an NZ provider of IPv6? I know this topic has come up on the list before, and it usually degrades in circular discussions - it would be nice to hear 'Yes, ISP X offers IP6 within NZ'. Without anyone spieling on about the glories of their own wares, of course :^) Gerard

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New Sepctrum Auction
by Paul Horak 12 Apr '07

12 Apr '07

Plans for auctioning the 2.3Ghz band for BWA/WiMAX have been published: http://www.rsm.govt.nz/auctions/auction09/index.html I think there is a real opportunity here for some of us to get access to spectrum. At present the lions share (or possibly all of it) will go to two or three companies to build a nationwide network. There is also a proposal to allocate some spectrum for regional operators under a "Managed Park". I suspect there are quite a few people interested in this who have not yet been in contact with RSM - it is essential that you let RSM know your interest and you respond to this consultation document. If the vast majority of comments come from the large providers wishing to deploy nationwide networks then I suspect there will be little or no regional spectrum available. I would also be grateful if you can contact me off list if you have an interest in obtaining spectrum for regional use. I have some ideas that might help our cause that I would like to share. Cheers, Paul NetSmart Ltd http://www.netsmart.co.nz/, Level 2, Regency House, 1 Elizabeth Street, P O Box 15020, Tauranga, New Zealand Tel: 07 5711367 Fax: 07 5711372

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Re: [nznog] IPv6 Incentive
by Scott Weeks 11 Apr '07

11 Apr '07

--- steve(a)focb.co.nz wrote: Scott Weeks wrote: > > --- andy(a)nosignal.org wrote:---------------- > ip is a means to an end, I don't craft packets for fun, I do work or > have fun, and ip occurs as a way to send my messages from A to B. > --------------------------------------------- > > ding, ding, ding! From the many lists discussing these issues > recently, we finally have a winner! Most folk don't care about > v4, v6, v8 or v<insert stuff here>. They want to do something > and they 'just want it to work'. 99.999% couldn't give less > than a crap how that happens. : or are you saying that there are only 65,250 clueful IP/IT : engineers in the world or people working in related fields ? This one. Clueful IP engineers in the world that also care about the version of IP used more than leaving a crap. :-) : Feel like citing references for your 99.999% figure ? It was just for fun and to make the point that most people in the world just don't care how stuff moves around the internet. They just want it to get to where they tell it to go. The five nines comes from many marketing-speak droids when telling everyone that their network has 5-nines of uptime. Of course with no more details than just that... <8-0 <== that's a crazy-eyed marketing droid babbling marketing-speak. scott

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Some graphs of .nz domain statistics
by Blair Harrison 10 Apr '07

10 Apr '07

Hi Guys, I took some of the data provided from the DNC website here: http://dnc.org.nz/story/30221-51-1.html and turned it into some graphs. You can check this out in either HTML or XLS format at my website: http://jedi.school.nz/nzdg.html Hope this is interesting viewing for someone :) Cheers, Blair

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IPv6 Incentive
by Andrew Ruthven 10 Apr '07

10 Apr '07

Hey, During the NZNOG conference it was joked that if the next WoW pack required IPv6 then IPv6 would be rolled out by the ISPs (and transit providers) for the next morning. See the attached mail for an experiment that might be cause it to be rolled out for that evening... Cheers! -- Andrew Ruthven, Wellington, New Zealand At home: andrew(a)etc.gen.nz | This space intentionally | left blank.

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Re: [nznog] IPv6 Incentive
by Simon Lyall 10 Apr '07

10 Apr '07

I think this thread should confine itself to technical matters. Discussion of how to promote ipv6 usage should avoid language and concepts that might be offensive to some people (or their work's filters). Discussion about what is or is not offensive should not be conducted on the list. Simon. Moderator. -- Simon Lyall | Very Busy | Web: http://www.darkmere.gen.nz/ "To stay awake all night adds a day to your life" - Stilgar | eMT.

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