VDSL Performance & Tuning

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5043 posts

Uber Geek

#883696 23-Aug-2013 22:52

Any Ideas with this:

Rebooted Fritz at 7ish last night and have had no CRC errors throughout the night and today. It then appears to have resynced at about 7:40pm tonight on it's own. But what's with the CRC error count? 370249 per minute but zero in the last 15minutes, and according to the stats I've had zero CRC errors in the last 24 hours.

Am I reading this wrong or what?

hio77

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Lizard Networks

#883704 23-Aug-2013 23:11

all thoses negatives, ild bet your fritz is having a bit of a fuzz moment.. give it a kick in the pants and reboot it, should settle..

#include <std_disclaimer>

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

stevehodge

393 posts

Ultimate Geek

#883716 24-Aug-2013 00:25

Paul1977: Any Ideas with this:

Rebooted Fritz at 7ish last night and have had no CRC errors throughout the night and today. It then appears to have resynced at about 7:40pm tonight on it's own. But what's with the CRC error count? 370249 per minute but zero in the last 15minutes, and according to the stats I've had zero CRC errors in the last 24 hours.

Am I reading this wrong or what?

Somehow the error counters have ended up negative and this is screwing up the calculations. Rebooting might fix it but be careful of rebooting too often as DLM is sensitive to resyncs. You could just leave it for now and use the graphs on the statistics page to monitor your errors.

Paul1977

5043 posts

Uber Geek

#883786 24-Aug-2013 09:56

stevehodge:
Somehow the error counters have ended up negative and this is screwing up the calculations. Rebooting might fix it but be careful of rebooting too often as DLM is sensitive to resyncs. You could just leave it for now and use the graphs on the statistics page to monitor your errors.

If I ever need to reboot these days I leave it of for at least 15 minutes before starting it back up. Snap said this should make DLM not count it as an error. Does this sound right?

Re-cabling today, so I need to disconnect for a couple of hours anyway.

Paul1977

5043 posts

Uber Geek

#883876 24-Aug-2013 14:20

Well, finished the cabling... and if I never have to get up into my roof cavity again it will be too soon. Straight run of Cat6 from the demarc into the back of the router.

Strangely my attenuation is now at 9db, up from 8db... but I think it has fluctuated between 8 and 9 prior to me doing anything anyway.

Sync speed not appreciably better, but was already pretty good.

I've requested a DLM reset and so hopefully it will get me off DLM7 over the next 10 days.

stevehodge

393 posts

Ultimate Geek

#883962 24-Aug-2013 17:41

Paul1977:
stevehodge:
Somehow the error counters have ended up negative and this is screwing up the calculations. Rebooting might fix it but be careful of rebooting too often as DLM is sensitive to resyncs. You could just leave it for now and use the graphs on the statistics page to monitor your errors.

If I ever need to reboot these days I leave it of for at least 15 minutes before starting it back up. Snap said this should make DLM not count it as an error. Does this sound right?

No idea. We've got zero info on what constitutes a "user initiated resync" (which therefore shouldn't be counted by DLM). I guess it might work that way if the designers thought that long disconnects might represent power cuts. I think the best advice is to avoid resyncs as much as possible.

HiTM4N

256 posts

Ultimate Geek

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#884126 25-Aug-2013 09:30

My lines really not happy these days.
Time to bit the bullet and call snap i think

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mikenzb

371 posts

Ultimate Geek

#884202 25-Aug-2013 13:28

lol, talk about downloading more then my line sync speed can handle from Origin. (Thanks ushare for the bf3 key btw)

The most i've seen on this line is 4.3MB on torrents....

stevehodge

393 posts

Ultimate Geek

#884217 25-Aug-2013 14:38

mikenzb: lol, talk about downloading more then my line sync speed can handle from Origin. (Thanks ushare for the bf3 key btw)

The most i've seen on this line is 4.3MB on torrents....

On the fly compression?

mikenzb

371 posts

Ultimate Geek

#884255 25-Aug-2013 17:34

stevehodge:
mikenzb: lol, talk about downloading more then my line sync speed can handle from Origin. (Thanks ushare for the bf3 key btw)

The most i've seen on this line is 4.3MB on torrents....

On the fly compression?

Could be I don't know how Origin works anyways.

hio77

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Lizard Networks

#884257 25-Aug-2013 17:53

mikenzb:
stevehodge:
mikenzb: lol, talk about downloading more then my line sync speed can handle from Origin. (Thanks ushare for the bf3 key btw)

The most i've seen on this line is 4.3MB on torrents....

On the fly compression?

Could be I don't know how Origin works anyways.

both origins and steam love to lie about speeds, heres a good example of steams lies..

#include <std_disclaimer>

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

Paul1977

5043 posts

Uber Geek

#884459 26-Aug-2013 09:35

Does a DLM reset usually set you to a crappy DLM and then work it's way down to the better ones?

After re-cabling and requesting a DLM reset I was stable for 38 hours with zero CRC errors, and then it resynced and moved me from DLM7 to DLM8.

In other words, with a DLM reset, do you go backwards before you go forwards?

hio77

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Lizard Networks

#884525 26-Aug-2013 10:37

dlm does do odd things, but a step back to DLM-8, are you sure the reset was actually processed? ild expect you to start on iver DLM-4 or DLM-1..

#include <std_disclaimer>

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.

Dairusire

298 posts

Ultimate Geek

#884528 26-Aug-2013 10:41

Yeah honestly doesn't look like you've been reset. typically people start on DLM6, I've not heard of someone starting on DLM7 then getting bounced back to DLM8....

Jexlar

41 posts

Geek
Inactive user

#884531 26-Aug-2013 10:44

mikenzb: lol, talk about downloading more then my line sync speed can handle from Origin. (Thanks ushare for the bf3 key btw)

The most i've seen on this line is 4.3MB on torrents....

Origin is the biggest speed liar there is. I got much the same speed indication from origin downloading the same files. It's straight up broken.
Why didn't you buy your own key for $5 for charity? Lol

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