Internet facts and myths

[poddster]

FACT

1. Internet data flow speed is limited to the speed of the slowest link between source to destination, regardless of the transport medium used.

(Be that copper, optic fibre, wireless or even wet string)

MYTH

Propagation of signal using Optic Fibre is faster than propagation of signal using copper.

(Propagation in both mediums is 66% plus or minus 5% of the speed of light in a vacuum)

[the_hawk*]

I have fibre optic, seems fast to me.

Hi Hawk 🙂

Hi Rosie 🙂 I see Lili is having fun:-)

[lakeland27]

:^O its not for want of trying.

[poddster]

so Poddy.. please tell me... no one else can... 

Some parts are getting NBN here... in fact the first part of the NBN is under construction. Apparently it is a new estate... in fact 2 new estates... 

BUT.. I don't get the hype.. 

I looked at the line back to Brisbane and most of the NBN is missing still.. 

The first bit being built is seaside... there is no connecting fibre to anywhere... so what is the benefit??? 

All over the news is that Bundaberg starts construction in the next week or two... or something like that... BUT there is no fiber out to the rest of the country so why are they starting here??? 

How is it going to make anyone go faster when there is a 100 lane hwy that is going to connect to a two lane hwy??? 

Cat you are understanding what i have been trying to show for 2 years now and i refer you to my first statementt of FACT

The internet is limited in speed to the slowest link

That is a fundamental irrefutable fact

I would guess that the reason to roll out the NBN in such a haphazard fashion is an attempt tp have some visibility in marginal areas and to apease focus groups who do not realise that their section goes nowhere. It is the plecebo effect. People think they have an advantage and in their mind they do, but not in the real world 🙂  

[cherry*135]

the_hawk:

They don't have the same properties at all,

The optic will not suffer from noise interference, has much higher bandwidth and much lower attenuation, making it possible for far higher speeds and distances.

not to mention much greater ability to supply possible future demands.

From post 5:

And this is the key difference — fibre optic cables have much higher bandwidths than copper cables.

[poddster]

Hawk and everyone else in fact, if you have a few moments you might like to peruse and evaluate this document on optic fibre attenuation 🙂

http://www.fiberoptics4sale.com/wordpress/optical-fiber-loss-and-attenuation/

[cherry*135]

The 5 national TEST areas for NBN -  would test some of the challenges NBN Co expected to face in the wider network deployment.

These challenges included semi-detached houses, apartment blocks, and sites with varying geospatial characteristics.

Part of the Melbourne suburb of Brunswick (2,600 premises

Parts of Townsville suburbs Aitkenvale and Mudingburra (3,100 premises).

Minnamurra and Kiama Downs on the NSW south coast (2,600 premises).

An area west of Armidale in regional NSW, including the University of New England (2,900 premises)

South Australian rural community Willunga (less than 1,000 premises).

Nothing haphazard about that or the first stage (areas that don't already have ADSL2).

[lakeland27]

Hawk and everyone else in fact, if you have a few moments you might like to peruse and evaluate this document on optic fibre attenuation 🙂

http://www.fiberoptics4sale.com/wordpress/optical-fiber-loss-and-attenuation/

could you explain that intentional puzzle in laymans terms ? :^O

[lakeland27]

the last sentence is interesting.

''However, optical fiber manufacturing technology have improved so much that these interface inhomogeneities now play a insignificant role in fiber losses.''

i'm also having trouble finding where the direct comparison with the peformance of an antique copper network is .

[poddster]

am*3

Care to comment on the most basic fundamental speed limitation of the internet?

1. Internet data flow speed is limited to the speed of the slowest link between source to destination, regardless of the transport medium used.

[clair.de.lune]

Is this where it's all happening tonight?