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This is a discussion on Fibre DLM within the Sky Broadband (Fibre) Help forums, part of the Sky Broadband help and support category; Any one got any ideas about how the new DLM will work? I Have seen in other posts that people ...
- 13-03-12, 10:09 AM #1
Any one got any ideas about how the new DLM will work? I Have seen in other posts that people do not think there is one but I was told by the fibre team there is one.
- 13-03-12, 10:41 AM #2
Re: Fibre DLM
From what I understand is that the DLM is done by BTO and is always on the line but I dont really think anyone is too sure just yet.
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- 14-03-12, 04:33 PM #3
Re: Fibre DLM
"2.2.5 Dynamic Line Management
Dynamic Line Management (DLM) is employed in GEA-FTTC. DLM constantly
manages lines to maintain a target stability. It does this for as long as the product
At provision, the line is put on wide open profiles, allowing downstream line speeds
of up to 40Mbit/s, and upstream line speeds of up to 2Mbit/s or 10Mbit/s depending
on the upstream product option selected.
On the first day of operation, DLM will intervene if severe instability is detected.
Otherwise, DLM will wait until the day after provision before intervening, provided
that the line has been trained up for at least 15 minutes during the preceding day.
If DLM intervenes it will set a capped profile with a maximum rate and a minimum
rate, where the minimum rate is set at approximately half of the maximum rate. The
purpose of the minimum rate is to ensure that the line does not train at a rate which is
significantly below the level the line should be able to achieve. If this happened, then
the line is likely to remain at a very low rate till a re-train is forced by the user
powering off the Active NTE.
Note that the upstream throughput is also constrained on the DSLAM to the upstream
rate requested in the order, ie 2Mbit/s or 10Mbit/s, so even if the upstream line speed
is higher, the upstream throughput is constrained to the level ordered for the product."