Maybe I am gumpy as I have a post op infection and feel like crap, but that aside, even before today I was beginning to get fed up of repeating myself in the other thread and no-one taking any notice. It had
started to become evident way before today that I was wasting my time posting about some of the stuff. I am not into the habit of putting up duff info on the main site.
If I dont know stuff I say I dont know and I wont bullsh!t people.
The reason why its taking me so long to complete the pages is because the topic is huge and there is so much info, yet it can take hours of reading just to find one bit of info that you want. Ive explained to you in PMs I cant give proof for some of the info I have because some of it is behind paywall, some of its marked confidential, some of it is whitepapers Ive paid for. I will also not disclose some sources of info because that would just close a door in future. Its not in my interest to make up garbage. Im doing this so we all have some more info.
Ive even told you guys the areas which I dont have info, but some of it is trickling though. Its one big massive jigsaw.
Of course there's differences between 20CN and FTTC - but the DLM system is separate hardware and software, its in addition to DSL. Its a system that runs alongside the existing technology. It doesnt matter if the DSL uses ATM or PTM & it doesnt care how traffic is routed thats not what its there for. Its a system that collects information from the DSLAMs, RAMBO calculates what it should do, the Element Manager configures the DSLAM, with whatever parameters you want to configure.
Its the Element Managers job is to ensure that all technologies, DSLAM manufacturers, and the DSLAM's OS can all interact with the one OSS. The Element manager takes the instruction from DLM and sets the correct parameters. Read up on
Element Managers and you'll see what I mean and what their purpose is. Its specifically why I had to research the DLM system and put a page up on that before I could even begin to start on the DLM functions.
Look at it this way. Java programs will run on Linux, Windows etc, the hardware will also be different. Yet the same program will run on all systems. Think of the Event Manager as performing all the translation between the OSS, the DLM and the DSLAM's O/S
ASSIA has a DLM product that can be run on FTTC or DSL or whatever. Its the Vendor specific Element Managers do all the talking to the DSLAMS. Their system runs on all products, again not caring if its LLU or whatever.
You asked what the differences were, Ive already gone over this before several times. I am aware of (most?) the differences as you can see where Ive got up to in my research
here. Ive mentioned the doubler and the ILQ several times, Ive mentioned that is the area Im currently researching and its not something I wont talk about until its all straight in my head enough to put in print. Its this function that is different.. when I have all that info together... then and only then will I talk about the ILQ/doubler function because thats the function that controls when the DLM makes steps backwards and downwards and does the stuff like removing interleaving etc.
I am specifically researching the FTTC algorithms, and 21CN is much easier to find info about, but its FTTC Im after.
Although I originally had profiles up on that page, they have been moved out to another new page (not yet uploaded) which will show the differences at a glance on one single page.
Yep Im peed because Ive had to struggle explaining every god-damn point of DLM, whether it be one system, the use of MTBE, the fact that FECs are ignored, dying gasp, wide area events, unforced retrains, 15 min monitoring, normalisation of the days events. I got peed because Im saying the same stuff over and over. I dont know of anyone that has attempted to go into the DLM nor spent the time researching in as much depth as I have. I appreciate that Im bringing new terms and new technology into the conversation and functions that no-one has heard of before, but if someone wants to spend several hundred hours reading through all the stuff that I have trying to pick the meat from the bones.. then be my guest, because Im not going to waste time any longer justifying what I do.
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Edit MTBE typo