VDSL Performance & Tuning

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#732902 15-Dec-2012 13:55

10? Wow, that sounds high. Hopefully you're right :) I'm seeing how mine goes with target SNRM at 8:

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SamF

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#732903 15-Dec-2012 13:59

Yeah, well I was on a CRCPM of 10 for a week on DLM-1 so that's what I'm going on.

EDIT: Correction, looking back at my history again, I was on DLM-1 for a week, but on a SNRM of 16 & an error rate of 0.8. I was on a CRCPM of 10 for only 3 days or so. I've corrected my last post. I'll see how things go when I'm swapped to DLM-1 next.

gmanp

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#733403 17-Dec-2012 10:03

Well, nine days since install (four days since coffeebaron fixed it) and I have a DLM change. For those tracking, it happened at 4:10 a.m.

Let's see if I get another change soon!

gmanp

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#733418 17-Dec-2012 10:25

Just had the realisation that I have changed from DLM-6 to DLM-2, so I've jumped two levels with one resync.

I also forced a resync on Friday night, which didn't change anything too noticeably. FEC dropped from ~1450/min to ~900/min but that was all.

helis

96 posts

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#733421 17-Dec-2012 10:28

DLM is lame. I had my first DLM change for some time today. No change that I can tell but my CRCPM has gone up to 1PM which is about what it was when I was on DLM1 a while back.

But yeah I decided to check on the fritz!box firmware and it seems there has been a few updates since my box was shipped. This is my current firmware Firmware-Version 84.05.04

Check out some of the interesting changes since.

New with version 84.05.20:

DSL: New DSL-version with improvements for ADSL2+ and VDSL lines
DSL: improved VDSL-interoperability and performance

I'm going to give it a try now. It also has a few other cool non DSL feature improvements.

sidefx

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#733425 17-Dec-2012 10:35

gmanp: Just had the realisation that I have changed from DLM-6 to DLM-2, so I've jumped two levels with one resync.

We're pretty sure that the fritzbox (or something) doesn't report DLM-4 (1INP) properly - that's likely what you're on; multiple people have observed behaviour where it seems they go from DLM-6 to DLM-2 then a few days later get another DLM resync and nothing visible changes - it appears that the 1st resync is actually DLM-6 changing to DLM-4 but it's not showing properly, then the 2nd resync is actually DLM4 to DLM2 you just can't tell because the 1INP isn't showing when on DLM4 for some reason.

Anyway, nice one. Good to see it change quite quick. I reckon you'll get anotehr one soon ;-)

"I was born not knowing and have had only a little time to change that here and there." | Octopus Energy | Sharesies
- Richard Feynman

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helis

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#733426 17-Dec-2012 10:45

Firmware upgrade went through fine. Will see how it looks after 24 hours.

stevehodge

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#733520 17-Dec-2012 12:57

helis: Firmware upgrade went through fine. Will see how it looks after 24 hours.

What version of the firmware are you on now? Do you have a 7340 or a 7390?

helis

96 posts

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#733586 17-Dec-2012 13:52

stevehodge:
helis: Firmware upgrade went through fine. Will see how it looks after 24 hours.

What version of the firmware are you on now? Do you have a 7340 or a 7390?

I was on Firmware-Version 84.05.04 and now it says Firmware: FRITZ!OS 05.22 which is Firmware version: 84.05.22

7390 is the router I have.

mattgreen

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#734009 17-Dec-2012 23:16

I'm also on 84.05.22 with a 7390.

Still haven't re-sync'd since the day I was cutover to VDSL.. 19/11/12 to now on DLM1 with CRCPM of around 0.8-1...

HowickDota

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#734365 18-Dec-2012 15:10

Just got the fritz 7390 yesterday and vdsl is getting connected on saturday.

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sidefx

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#734381 18-Dec-2012 15:26

@HowickDota: Very nice, you must be very close to cabinet\exchange? Oblig: Have you got a master filter or eliminated unneeded stubs\jackpoints? Well worth doing before the change over and DLM starts.

"I was born not knowing and have had only a little time to change that here and there." | Octopus Energy | Sharesies
- Richard Feynman

Reido

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#734386 18-Dec-2012 15:37

Changed from Vodafone naked to Snap VDSL yesterday.

not the greatest, but the increased upload speed is amazing.

sidefx

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#734394 18-Dec-2012 15:50

@Reido: Any idea how far from the cabinet\exchange you are? That attenuation looks a bit nasty. (And as above, have you either got a master filter or if naked have you ensured you're connected by a single line with no unterminated stubs\unused jackpoints\etc off it?)

"I was born not knowing and have had only a little time to change that here and there." | Octopus Energy | Sharesies
- Richard Feynman

Reido

26 posts

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#734407 18-Dec-2012 16:03

umm pretty sure its less than 1km.

I am in an apartment type thing, 4 apartments, 1 building; so I am not sure whats going on with the wiring in the house.. We only have 1 phone jack. Naked VDSL, have VOIP with 2talk.

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