iinet on speed!!

[bartman]

Just curious if there is a reason to this......
Got a email this morning saying that there was a fault in WA for ADSL customers and that there may be connection problems. The following emails said that customers have been switched over to "alternate equipment" whilst they resolve the problem.
Well.....download speeds have increased heaps! for instance, Pauls mosaic of the sun wich is 1.3mb ( so be warned) cam up within! a second. I downloaded a youtube vid ( 150mb) and the download speed indicates it was running between 1.0 and 2.0mb/s, where as normally I would get max about 0.5 to 0.75mb/s.

So the question is , why is this so ? anyone have some idea?
My speedtest.net results are pretty much the same as per previous tests......

Anyhoo:thumbsup:
Bartman

[mill]

I am with iinet and get 1.5Mb/s on the adsl1 plan with turbo.
I have to say that i live about 400Mtr from the exchange.

[MrB]

Mb/s or MB/s? bits or bytes?
I used to get approx 9Mb/s(~1MB/s) on vivid until they went "unlimited" and oversubscribed, it is crippled now.
I really miss the speed, used to be nice downloading 100MB files in about 90 seconds. :(
Wish I could find an alternative.

[bartman]

I'm about 750 meters away Martin.
Is the 1.5Mb/s constant in downloads?
Maybe I have been ripped of all this time?
I,m on adsl2+ thrill seeker setting........
Will have to keep an eye on this now...

[Visionoz]

Bart

Could be that your connection's been temporarily "unchoked" - perhaps bypassed the proxy server that could "control" your dataflow

Used to do that to shape the customers' bandwidth so that it gets an upper limit to prevent tooooooooo muuuuuuuch downloads! :D

HTH
Cheers
Bill

[bartman]

Yeah I know MrB, Mb/s or MB/s...wish they could come up with a standard across the board....

Well just tried another vid from utube and got my usual 150KB/s.
What I was getting before was 1000KB/s+

[bartman]

That does make sense Bill!
Hope it stays broken for a while heheheheheh:lol:
Bartman
PS.....what are you saying? am I downloading toooooo much:rofl::thumbsup:

[mill]

On ADSL2 you should be able to download at 8MB/s.

[Blue Skies]

All I can say is you were lucky - while I could download emails I couldn't access anything on the net at all this morning! 'Tis ok now, of course.

[tlgerdes]

8MB/s = 80Mb/s

B = Byte
b = bits

ADSL2+ will be between 1.5Mb/s - 20Mb/s depending on how far you are from the exchange and the quality of the copper.

[Marke]

They probably put you onto an internode switch as they are now part of the same company . Internode have always been very quick , I am a couple ks away and I d/l at 1.3Mps any time of day.

[mill]

I think you know what we mean :P

[bartman]

Thats cause its harder to push those bits up the hill though ;)


Yes I've heard that too....mmmm I'm moving house in a week , maybe a change is in order?


:P:thumbsup:


By putting a few bits ( pardon the pun) of info together from the responses, me tinks certain sections of suburbs are subject to certain equipment, routed or otherwise.
Just all looks and feels a bit dodgy to me at the moment....

BTW not that I'm getting terrible connection/s or unusual slow download speeds.
I'm happy(ish) with what I have and cant really complain, but now that I know that it could be faster........I wonder....
Bartman

[MrB]

Close. 8MB/s = 64Mbit/s and 80Mbit/s = 10MB/s

[Omaroo]

...and contention ratio.

[bartman]

Connection ratio Chris?
Does that mean how many are connected at the same time to the same whatsa ma call it....( forgot the name). I thought only applied to Cable internet?
Bartman

[Visionoz]

Nah, Bart not ya! - It's those other guys mate! Honest!:P

BTW - iiNet owns their own DSLAMS in all the telephone exchanges - and no single ISP has their own POPs (point-of-presence) in every city in Australia except of course Telstra themselves so enjoy whatever speeds more than you've experienced before until some hardworking techie realizes what's happening and put you back in the corral :D

Cheers
Bill

[bartman]

I was going to multi quote your post Bill, but I think.......your post says it all!!!!!!!!
Thanks the HTH did!
DSLAMS was the equipment name I was looking for in my previous post btw heheheh so thanks for the reminder heheheheh.

....think I'm back in the corral too by the looks of it.....
Oh well, I did learn something though!
Cheers
Bartman

[mithrandir]

It depends on what you mean by bytes downloaded. You may not be counting encapsulation bytes.

Assume a maximum of 1500 bytes/frame (standard ethernet size not including the ethernet header which does not go down the wire).
ADSL requires 8 bytes/block for LLC/SNAP headers.
IP requires 20 bytes header per fragment.
TCP requires at least 20 header bytes/packet.

So at best you get 1500-8-20-20=1452 bytes of data/frame.

Roughly 1.3Km from the exchange my ADSL runs downstream at about 13Mb/sec, so 13e6*1452/1500=12.584e6 Mb/sec=1.573e6 MB/sec is in the ballpark for downloads from mirror.aarnet.edu.au

[MrB]

None of that matters, there are always 8bits per Byte.
What you are describing is the data rate.
What we are talking about is percieved speed.
If the speed is showing as 8MB/s, it is 64Mbit/s at that same point of reference no matter how the data is formatted.

[Omaroo]

Contention. You're sharing your connection with plenty of other people. If everyone is online after they get home from work or school, then you compete for bandwidth.

http://usertools.plus.net/tutorials/id/11

[Barrykgerdes]

A few things that your ISP does not tell you.

1. Your maximum bit rate is inversly proportinonal to the length of cable from your exchange. and the S/N ratio at about 5 Km is just about unity so many more packets need to be sent to resolve the data that is spoilt. ADSL2 has a maximum rate of about 20Mb/s but when converted to MB of data there is overhead to be taken care of so if you get 1.2MB/s be thankful and don't complain. The cable is "yours" and not shared.

2. The server in the exchange has a limited bandwidth that needs to be shared with all the subscribers to that ISP so going by the price of your service you can get a rough idea of how many subscribers the ISP calls a full load. If all are on at the same time you will probably get close to dial up speeds.

3. Before the data gets to your exchange it has to go through a lot more bottlenecks that have bandwitdth limitations. Spammers take up an awful lot of bandwidth.

4. If you have a wirless connection para. 2 also applies.

5. The NBN is not going to change most of this without you paying a lot of money for full fibre. Fibre also has a bandwidth limitation which I am sure we will eventually exceed some time.

My speed has a maximum of 570 KB/s but this is only achieved from major Web sources. Last week I downloaded a driver from Acer at less than 10KB/s. had to leave it run all night to get 100MB.

Barry

[GrampianStars]

Love my Satellite Broadband (IPSTAR) 4Mbps down 2Mbps up :thumbsup:
not shared with anybody