Hi, I was wondering if you could help me with a few questions. My main problem is with DLM, I've read so many descriptions and there seems to be a variety of interpretations. My own ISPs help pages contradict themselves many times. One ISP seems to think your line rate is held between the MSR and the fault rate, only they are alone in this.
Anyway where I am is stuck on 1500k.
My line came on Friday, I'm not sure how fast it was running, I didn't really check. It had disconnected a few times over the first 3 days, syncing mostly at 8128, a couple at 7xxx, I think one must have been 5xxx (as ISP figure I mention later).
On Sunday I told my Netgear to disconnect, then pulled out the phone cable while I rewired the extension cable as my router was on the end of about 30m of cable. When I plugged in the phone cable it resynced at 17xx, so I rebooted it and it synced at 15xx
I realised I'd left an unfiltered phone that I was testing with, so unplugged that and powered down and up my router, resynced at 8128, noise margin about 6+db higher than prewiring. This was about 23:30, after 24 hours I disconnected, powered off for 10 mins and then reconnected (Monday night) Then I started logging at 6am as you can see from this graph of noise margin and errors. Every sync is at 8128, which can be seen as the resetting of error count, and no losses of connection.
In my ISP panel I have this:
Current Line Rate 1,728 kb/s (updated 05/12/2006)
Estimated Stable Line Rate 2,272 kb/s
Although I'm not sure what those figures are exactly. The stable line rate hasn't changed, I've seen the other start at 5xxx and then after my Sunday mission drop to 1152. On Tuesday however it jumped to it's present figure well outside of a sync event, around 6-7pm. Speed tests proved my line rate had gone up outside of a sync event. Subsequent visits to BTs tester showed my IP rate at 1500k. However this is where it has stayed, despite having one 8128 sync on 6 days running. Whats going on?
My noise margin looks fine doesn't it? It was clinging on at 1dB before re-wiring.
I was also wondering about those errors, are they within normal range? They seem to lessen off after the evening period in the night period as the noise decreases, although not so much during the day period when noise is very low.
Is there any more bang up to date detailed info on DLM? Although this site seems to be best so far, it is missing blip logic and I would like more info on the not-resyncing philosophy , maybe there is something detailed from BT?
Also while I'm here, does LLU change this, I mean do they do it the same way as BT?
Thanks for your time and any advise,
Adam.