DLM "Intelligence" Laughable
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Plusnet Community
- :
- Forum
- :
- Help with my Plusnet services
- :
- Broadband
- :
- Re: DLM "Intelligence" Laughable
DLM "Intelligence" Laughable
15-08-2014 9:41 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
My connection stability is normally measured in months up. The recent storm caused a couple of drops and subsequent work the next day caused a couple more.
If the "Intelligence" behind the DLM thinks that makes an unstable line requiring a rise in the snr then the system is laughable and well pass time it was retired.
Re: DLM "Intelligence" Laughable
15-08-2014 9:44 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: DLM "Intelligence" Laughable
15-08-2014 9:52 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: DLM "Intelligence" Laughable
15-08-2014 10:15 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
I thought the DLM should (or at least could) be able to recognise a thunderstorm by going on the basis of all the lines in an area having a lot of extra CRC errors. The DLM doesn't just work on disconnections, it also considers the rate at which errors occur. A thunderstorm really hammers down the mean time between errors (MTBE), because the thunderstorm causes errors almost every second for a long period.
You can compare my graphs of yesterday with a little thunder / lightning in the afternoon with some typical (for me) days the days before. The weren't necessarily that many more CRC errors, but double the number of seconds containing CRC errors ("Error Seconds", ES), significantly lowering the MTBE into the red (under 60).
We have also seen some "interesting" DLM data posted by plusnet staff in a couple of threads recently. This showed some difficult to interpret things, such as varying number of retrains without any changes in line speed, and another had changes in line speed or changes in uptime but with zero retrains counted. I suppose the latter could be explained by cleanly disconnecting each time, but it made me wonder about how accurate the data the DLM collects is.
Re: DLM "Intelligence" Laughable
15-08-2014 10:56 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: DLM "Intelligence" Laughable
15-08-2014 10:59 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Quote from: AndyH how is DLM suppose to know that your drops were caused by the recent storm and work
That's the point. If it doesn't even know that and can't look at simple line history it's not exactly fit for any purpose I can think of.
Why should I have to wait around 30 days or so before things return to normal. It would be acceptable if things would return to normal as fast as they crash and burn.
Re: DLM "Intelligence" Laughable
15-08-2014 11:06 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: DLM "Intelligence" Laughable
15-08-2014 11:12 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
G.992.5 annex A
Re: DLM "Intelligence" Laughable
15-08-2014 11:22 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: DLM "Intelligence" Laughable
15-08-2014 11:24 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: DLM "Intelligence" Laughable
15-08-2014 11:25 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: DLM "Intelligence" Laughable
15-08-2014 11:28 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
billnotben, I presume you tried logging into your modem/router and clicking Disconnect for the PPP Internet session, and then powering down. Wait 10 minutes and power up again, login and click Connect and see if that has improved things.
Re: DLM "Intelligence" Laughable
15-08-2014 11:39 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
Re: DLM "Intelligence" Laughable
15-08-2014 11:50 AM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
I'm happy to try an SNR reset for you. It's set to 10.5db right now, which is pretty high.
I'll do my best to check back on this in an hour or so to see if the changes I've mean I can update your profile.
Re: DLM "Intelligence" Laughable
15-08-2014 12:13 PM
- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Report to Moderator
A year or two back it kept dropping to an snr of 3 but someone at Plusnet did their best to get it to stick to 6 which is why I was a bit surprised to see it move.
Of course there is always the possibility that the storm and the spanner in the works has now made the line not as stable as it was. Hopefully not and it's just a blip.
But you can never be sure with these things.
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Plusnet Community
- :
- Forum
- :
- Help with my Plusnet services
- :
- Broadband
- :
- Re: DLM "Intelligence" Laughable