[AusNOG] Strange ADSL problem - troubleshooting / diagnosis advice wanted

Jason Reid jasereid at gmail.com
Wed Sep 10 18:42:34 EST 2014


To OP

I would be testing another router on that line before sodding too much time
on it - I've seen too many fail after 4-5 years to count.

Regards
Jason Reid

On Wednesday, 10 September 2014, Guy Ellis <guy at traverse.com.au> wrote:

> It's called Seamless Rate Adaption (SRA) and is part of the ADSL2+
> standards.
>
> You might be confusing it with Vectoring as in the case of VDSL2?
>
>  - G.
>
> On 10/09/2014 3:28 PM, Jeremy Visser wrote:
>
>> On 10/09/14 14:39, Paul Brooks wrote:
>>
>>> ADSL2+ is supposed to re-train to a new sync rate seamlessly without
>>> packet drops, whereas the older ADSL1 had to effectively drop the
>>> line, re-sync, generate a new bitfield table per tone to cope with
>>> changes to background noise and cross-talk that caused a need for a
>>> re-sync.
>>>
>> I thought that was a feature of VDSL2, not ADSL2+.
>>
>> I’d be interested to see a source on that as happy to be wrong.
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>> AusNOG at lists.ausnog.net
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>>
>>
>
> --
> Guy Ellis
> guy at traverse.com.au
> www.traverse.com.au
> T: +61 3 9386 4435 M: +61 419 398 234
>
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog
>


-- 
Jason Reid
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