[AusNOG] NBN VDSL Speeds | Line Sync | Determining Max Throughput

Damien Gardner Jnr rendrag at rendrag.net
Tue Mar 14 20:35:42 EST 2017


You'll sync at your purchased speed, with attainable rate showing your
line's possible maximum.  E.g. I pay for 50/20, so sync at 55/22.  When I
was previously paying for 100/40 on the same line, I was syncing at
110/44.  Not sure on attainable rate, as the HG658 doesn't show it :\



On Tue, 14 Mar 2017 at 8:31 pm, Ben Cummings <bcummings at clublinks.com.au>
wrote:

> Hello All,
>
> Just a quick question that will likely be a quick answer for someone with
> more familiarity on the subject matter.
>
> I haven't had much exposure to the inner workings of the NBN or xDSL (so
> please excuse my ignorance) and haven't been able to find an answer
> elsewhere.
>
> I'm not too far away from getting FTTN at home, and am curious as to
> whether my standard 25/5 plan will show me a line sync speed of let's say
> for arguments sake, 65000 but have a maximum throughput of 25000 set
> further upstream by the RSP (thus suggesting a 50Mbps plan would allow me
> to use up to the full 50Mbps, but that I wouldn't be able to achieve near
> full utilisation of a 100Mbps service) -or- would a 25/5 service show my
> line sync as 25000 and provide me no real indication of what I could
> theoretically push through the copper after attenuation, equipment choice
> and cable wear and tear comes in to play if the cap were taken off.
>
> Any insights or wisdom on this would be greatly appreciated.
>
> Kind Regards,
>
> Ben Cummings
> Clublinks
>
>
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