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Human
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# 42809 11-Oct-2009 20:07
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Every ISP I have been with has been giving crappy upload speed.

the highest i've had is anything up to 120kb/s [0.90ish mbps] (connection rate 1mbps).

my mate overseas just got onto an ADSL2 plan and hes getting 9mbps UP.



Could someone please explain to me what the issue is with ISP's not being able (or just not) providing at least a DECENT upload speed?





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  # 263334 11-Oct-2009 20:55
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without annex m, adsl2+ is restricted to a theoretical max of around 1.4mbit, tho often is much less. nothing the ISPs can do about that, it's a restriction of the technology. The 'a' in ADSL stands for asymmetric, referring to the fact that the download speed is much faster than the upload.

if your mate is getting 9mbit up i suspect they are using something other than ADSL2, or are not measuring it correctly. With annex m and being right next to their DSLAM they would still only see 3.5mbit up.



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  # 263335 11-Oct-2009 20:57
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portunus: without annex m, adsl2+ is restricted to a theoretical max of around 1.4mbit, tho often is much less. nothing the ISPs can do about that, it's a restriction of the technology. The 'a' in ADSL stands for asymmetric, referring to the fact that the download speed is much faster than the upload.

if your mate is getting 9mbit up i suspect they are using something other than ADSL2, or are not measuring it correctly. With annex m and being right next to their DSLAM they would still only see 3.5mbit up.


Hmm, I better have a chat with him. I'm just going off what he told me.

But still, that sucks completely. So what does this mean exactly? does it mean we are a LOOOOONG way off seeing any kind of good speed?





 
 
 
 


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  # 263336 11-Oct-2009 21:05
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VDSL2 gives much better upload speeds, i think I read the telecom dslams will use a profile that will aim for up to 20mbit upload and 50mbit download, though obviously in real life will prob be a lot less. Still I expect it will be a lot more impressive than ADSL2+ for uploads!

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  # 263337 11-Oct-2009 21:05
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If you can wait several months, you may find you can take advantage of residential VDSL2 service, and 9 Mbps upstream will be very achievable (if your speedtest.net result is anything to go by), unless of course ISPs decide to cap the upstream rate.



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  # 263338 11-Oct-2009 21:09
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Ilmarin: If you can wait several months, you may find you can take advantage of residential VDSL2 service, and 9 Mbps upstream will be very achievable (if your speedtest.net result is anything to go by), unless of course ISPs decide to cap the upstream rate.


Meh, months is a long time in technology. everyone in the world will be on 100mb up stream before we see anything decent :P





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  # 263358 11-Oct-2009 22:17
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I've experienced Telstra's VDSL2 service, and they did deliver the promised 10Mbps up, although we were very, very close to the exchange.




"Roads? Where we're going, we don't need roads." - Doc Emmet Brown



Human
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  # 263359 11-Oct-2009 22:18
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magu: I've experienced Telstra's VDSL2 service, and they did deliver the promised 10Mbps up, although we were very, very close to the exchange.


im not sure what is considered far. But im like, 1.3KM from the exchange





 
 
 
 


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  # 263373 11-Oct-2009 23:07
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For VDSL you really need to be less than 800m from the exchange.

Anything over and the speeds starts to drop quickly to the point where you need to change to ADSL2+.


VDSL is really only going to work from cabinets.

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