(update) Loss of sync- Any reason you can see?
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- (update) Loss of sync- Any reason you can see?
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Re: Loss of sync- Any reason you can see?
01-06-2010 6:54 PM
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http://www.kitz.co.uk/adsl/interleaving.htm
Quote It should also be pointed out that whilst BTw state that applying interleaving shouldn't reduce your line speed, it does reduce the maximum line rate achievable from 8128kbps to 7616kbps due to the additional overhead required for check bytes.
Note: although BT state 7616 is maximum sync speed with interleaving, many instances of higher sync speeds have been reported by users. This is dependent upon your router being able to support S=1/2 mode which effectively combines two RS code words into a larger logical code word of 510 bytes (ANSI T1.413).
Interleaving and Error Correction are always switched on at the same time and the 7616 profile has a 512kbps error correction overhead with an increased latency of around 16 ms.
Interleaving is set to "auto" by default and interleaving is then controlled by the DLM process, turning it on if needed. It is possible to arrange to have interleaving set to permanently "on" or "off" via your ISP. Some ISPs may make a charge for doing this.
Re: Loss of sync- Any reason you can see?
01-06-2010 7:00 PM
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Jim. I was using a DLink 2640b before this as it works well with my music streaming.
I shall go back to it without doubt, and probably leave the interleave as it is as I was perfectly happy before.
Thanks for the quote, Jim, I will have to read that a couple of times.
Rob
Re: Loss of sync- Any reason you can see?
01-06-2010 7:23 PM
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Quote Mr.W .DMT attached after forcing. This is how its been for months. Yonks ago one of your regular posters (anotherone?) helped me get my sync up and remarked that I had BBc transmitter nearby (Droitwich) How did he know that?
Thanks for that, amazing to see the difference! Any idea what the fault on the Sky box was ?, it made a right mess of your ADSL right across the spectrum!!
My guess is that Droitwich is showing up as the dip in the Bit loading, sort of midway between tones 656 and 724 ( I'm too lazy to do the calc's!! ) If you're interested read this on the kitz site http://www.kitz.co.uk/adsl/adsl_technology.htm.
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
Re: Loss of sync- Any reason you can see?
01-06-2010 7:36 PM
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Rob
Re: Loss of sync- Any reason you can see?
01-06-2010 7:42 PM
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Re: Loss of sync- Any reason you can see?
01-06-2010 7:56 PM
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Rob
Re: Loss of sync- Any reason you can see?
01-06-2010 8:02 PM
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Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
Re: Loss of sync- Any reason you can see?
01-06-2010 9:01 PM
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Rob
Re: Loss of sync- Any reason you can see?
23-06-2010 11:10 PM
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Connection Type : G.DMT
Cable Status : No Defect
Network Status : Connected
Connection Up Time : 38 hour, 40 min, 38 sec
Downstream Upstream
Rate (Kbps): 8128 448
SNR Margin (dB): 8.1 24.0
Attenuation (dB): 26.0 12.5
Output Power (dBm): 12.3 19.8
Super Frames: 8193211 8193209
Super Frame Errors: 14 19
RS Words: 1114276760 69642276
RS Correctable Errors: 4877 71
RS Uncorrectable Errors: 81 N/A
HEC Errors: 14 7
OCD Errors: 0 0
LCD Errors: 0 0
Total Cells: 2670059839 0
Data Cells: 5424927 0
Bit Errors: 0 0
Total ES: 8 0
Total SES: 0 0
Total UAS: 12 0
Old Jim- 8128 with interleaving
Re: (update) Loss of sync- Any reason you can see?
24-06-2010 9:41 AM
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Just aligned our profile to the BT one.
Jojo
Re: (update) Loss of sync- Any reason you can see?
24-06-2010 12:41 PM
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Rob
Re: (update) Loss of sync- Any reason you can see?
24-06-2010 1:34 PM
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Jojo
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