40 posts • joined Tuesday 17th July 2007 10:27 GMT
Why the need?
We've been doing 32 channels sdh @ 10G for YEARS*
We've been doign 80 channels sdh @10G for a few years
Sometime soon, we'll move to 40G SDH (though not sure how many channels we get out of that.
Gazillibit ethernet - why would anyone want this? surely this would be a datacentre technology, as we already have the long haul technology. Who's built a server bus technology capable of getting near this speed. So what's the point?
* This is what most of your internets/ mobile backhaul etc goes over. I know, coz I built it,innit.
Backhaul is easy - you put a CDN around your THS sites, then you offer your 700mb movie in 60 seconds yes, but traffic shape everything else.
ok so you might need to upgrade a few microwave's up to 10Meg but it's not the end of the world.
'scuse the pedantry Dan, but isn't the use of per-cent based on the fact that we are use a decimal system.
So your 131 actually becomes roughly 70 over 100 (where 100 = 77+1) (all OCT).
but it's not per cent, as cent refers to a decimal value.
I await with glee the etymologists along to tell me what per 100 is called in Octal.
Mines to one with the TI Graphing calculator in one pocket and tissues for the nose bleeds in another,
2mb a song...
just very short songs.
10gig sdh * 32 channels on a single dwdm has been commonplace for 5 or 6 years now.
40g is developed but not really sold.
Alot of the research $$$ has gone into getting adaptive optics to work - getting lamda configurable line cards.
alot of the carrier $$$ has gone on making better use of what they've got.
maybe the headline should have been "new optical network deployed, first for 2008".
mines the one with MOR hanging out of the pocket when I left that industry.
back @ dave
Yep - I'm sure they do, but when they step out into traffic from infront of a parked bendy-bus, and I'm pushing 25mph+ on a race bike (and wigh over 100kg) simple physics would prevent me from "giving-way" to said pedestrian.
@ Most people
"Segways should be allowed to use cycle lanes".
That's fine by me - cycle lanes are generally a waste of space for most cyclists: Put me in the traffic at 30mph - it's way better then having to deal with kerbs, potholes and intermittancy of the cycle lane.
BTW the last pedestrian that stepped out without looking at me finished up with a broken arm. That hopefully learnt him.
An here was I thinking there were only ever 4 Corrs
Mine's the one with the violin
The 1.50 markup
Is absolutely disgusting.
I'm sorry you want me to pay you MORE for the privelidge of paying you in the first place.
I've been going to germany for years and never had an issue paying with my card there - every cab takes cards and non of them add a mark up.
Well it didn't catch my face last week
Just my single middle finger turned upright as it cut me up whilst I was struggling on my bike up highgate west hill.
Not sure they're software has a blur setting for "scary fat lycra clad swetting man."
@ AC - BBC/Pro Labour Apporatus
Had to laugh last night - London tonight lead with a 10 minute blurb on some deputy mayor who'd "borrowed" 25k from a punter while a parish preist.
It's a shame there wasn't any non political news yesterday - such as the brutal murder of 2 french post grads.
@get your facts straight
Ha ha ha.
1) Rick posts a crap comment designed to insight annoyance in our cannuck breveren.
2) Rick get's flamed
3) Rick get's annoyed at flame; toys leave pram.
Settle down lads, none of it would have existed if we hadn't given you tv, radar, the jet engine, expresso makers.
maybe not the last one.....
@Anton - bang on - great post
Annecdotal I know but...
There are 10 of us sat in an office up in newcastle all running 3g - all within a few meters of each other.
I constantly get 3.5G - good rates - super access etc, the bloke right next to me get plain old 3g, as do a few others, the remainig chaps can't get a signal and are left with gprs.
We're all on a coroporate flat rate job.
So @pete - we don't get charged per meg - that's not where the main operators are interested in making cash....
BTW O2 ripped and replaced Nortel 3G kit when they got bought by telefonica who had an existing deal with lucent (I think) - wouldn't be suprised if thats et them back a couple of years on the infrastructure side....
The sucess/failure is all about in car
I don't know where people listen to their radios, but for me it's just in the car.
iplayer/any other content delivery method all well and good - make that happen in my car please - then you can turn off fm/dab.
poorly planned, poorly executed and poorly marketed.
I'm with Tony on this - it reeally is ace...
the 300k$ cisco kit buys you
3 big old plamas
a bunch of hd video cameras.
surround sound audio (both mics and speakers.
a table that is exactly replicated at the other side.. and matching pain for the walls..
it's beyond ice cool.
sure we can have msn to chat to mum on our year out in oz - but this is for the big boys brokering mega deals.
is it me - the guy died at 90 after a great innings - should we not celebrate his life rather then mourn his passing.
ps please ban RIP - am I the only one that associates the phrase with chavs these days..
Shocker - Cambridge Cyber fogey has eccentric idea
The mans a plank and obviousely has no real world experience.
Those that can,do;, those that can't,teach
It's as stupid as saying well it'd be best to fill up your cars fuel at the refinarey because tankering it around the country just dosn't make environmental sense!
Still, lots of big mirrors in various deserts please....
ps the sun can shine at night - assuming that you've superheated enough of something to keep the turnies going....
No it's not. it's a medium size, very flexible piece of kit, however if you want massive, then the HDX is where it's at. Huge multi terrabit optical x-connect, ASTN capable etc with something daft like 32 10 gig ports pre shelf, over 2 shelves...
The 6500 wins out though as it (should) support PBT...
reinforce the gear?
Is it me or has this been slapped down before it got near started.
Reinforce the gear? put the nosewheel in a sled.
tow from a different point?
persoannly i'd like to see it go all the way and have aircraft launched with engines off/idleng using a electromagnetic catapults
of course we'd need alot of electrical energy for that, and therefore we needd a bit more investment in fusion...
wow such vitriol!
firstly: so what? they could afford to.
secondly: that'd be a good thing for the rest of the market surely?
thirdyly: I think thy're pretty good/get a life.
The way I see it itunes won the day becuase it's actually usable.
And surely if the ipod looked good and works well then that's a good thing?
for the record, I have a 2nd gen nano which get's well abused and it's still going strong (witht he exception of the shite headphones that went in the bin early doors for a new pair of shures), no other apple products. I use wintel at work AND home.
Joel, it dosn't work for secure records because of the way the revenue's IT deal with these "customers".
The article you quote is sensationalist (to say the least). the system is very, there's abuig long list of people that can't use it, and that's to protect national interests.
Sorry Chris - Speed roughly equals bandwidth - so I think you meant bandwidth and monthly data limmit/ download cap or something.
It would be better to scratch the term bandwidth all together and replace with baud rate or simpy speed.
Data Center.. a product?
becuase it's not.
If it is then you're welcome to patent/trademark/whatever it.
CC Learning, as far as I can tell is part of their marketing stratergy, and that's where and why they're sucessful.
1) Build some dodgy kit
2) Ensure everyone pays you to become certified on dodgy kit.
3) Ensure only certified techs get access to support*
4) Customers feel tied in to a product as they've spent $$$ on training.
* is they key differenciator between cisco's sucess and nortel/juniper/avaya/etc's failings
yes you can do juniper trainig, but does anyone care?
Why buy eurofighter at all
Surely we should have bought into f35 from the start - assuring commanlity accross all attack platforms, then you dismantle the RAF leaving only heavy lift capability there and put all fighter/bomber capability in the Fleet Air Arm.
plus plenty of UK tech in this bird.
PS the multisensory in-helmet heads-up display is awesome
I think this would be a great idea for the next budget airline:
£20 flat charge, cofvers the first 50kg.. then weigh yourself and your luggage in - and..
0.1 pence per kilo per mile addition.
I'm a bit on the choddy size (BMI tipping 30ish (which is complete tosh - I'm fit as a butchers - and spend ALOT of time at the gym), but get just as annoyed by skinnies plgging massive cases onto their flights...
"if a lasers(sic) just light" - no, a laser is just e.m. radiation - and the common or garden type happens to be in the visible spectrum.
Not sure what part of the spectrum these are supposed to be in but you can be they're not in the vis spectrum..
Open source is not a religion. Everyone and everything does not have to respect its rights .
And can someone explain why we should have to be so respectful of people's religous rights. We should no more repsect them then people's desire to have iPlayer ported to their old A3000 Acorn...
This is just BT panicking that they can only just get BT Vision SD working on standard POTS. Sky and Virgin and (almost) DVB are near enough offering (some, expensive) HD, BT can't get near unless they seriously up their game.
50MBit/s is for BT Vision HD and for nothing else, which to me sounds like fairly savvy investment.
Even with 21CN the backbone wouldn't support every joe downloading hours of 720p from a torrent.
Unfortuately that's how it works..
IPTV works in a walled garden - it's multicast technology
VOD is similar but uses point cast.
So the end user equipment is tied to the service provider (so they can set up the vlans/VCCs to get the correct QoS/Cos)
It's not like a "grown up myspace" which is just internet video.
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