Fibre Fault Guides
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Fibre Fault Guides
on 16-10-2014 7:18 PM - last edited on 07-04-2016 11:28 AM by MatthewWheeler
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I've reviewed the supporting documentation surrounding fibre faults. I've taken some time to write some in depth and easy to read documentation on how fibre faults might arise, and what it is we do as your Internet Service Provider to investigate and resolve such issues.
If you believe there is anything missing from these guides, or have a question generally, please comment on the specific guide and I’ll do my best to answer any questions you may have. I'll be adding some new guides here in due course to help expand knowledge of FTTC and how our Faults Team work through such faults. Please see below for links to the relevant guides.
How FTTC DLM works - SOME OF THE TIMESCALES IN HERE NEED UPDATING
Re: Fibre Fault Guides
26-11-2014 1:48 PM
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There appears to be a change in how FTTC DLM works; it is temporarily turned off (probably leaving connection profiles in the state they happened to be in just before turn off).
http://www.thinkbroadband.com/news/6726-assia-court-case-forces-openreach-to-turn-off-dlm.html
(I would have posted this as a comment on the 'How FTTC DLM works' page, but when I link to that page it goes there in a logged off state. Maybe I'm not authorized to post on the Community Support Library, only on the Forum?)
Re: Fibre Fault Guides
26-11-2014 1:50 PM
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Re: Fibre Fault Guides
26-11-2014 1:51 PM
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Also, I had somehow missed the thread http://community.plus.net/forum/index.php/topic,134340.0.html so sorry for the extra posting.
Re: Fibre Fault Guides
27-11-2014 2:36 AM
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Thanks for the heads up on the information though!
Re: Fibre Fault Guides
14-09-2015 11:37 AM
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Re: Fibre Fault Guides
14-09-2015 11:45 AM
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At any given moment in the universe many things happen. Coincidence is a matter of how close these events are in space, time and relationship.
Opinions expressed in forum posts are those of the poster, others may have different views.
Re: Fibre Fault Guides
07-04-2017 2:53 PM - edited 07-04-2017 2:54 PM
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@Chris wrote:
I think we'll hold off on updating these guides until we have more information.
Is it time yet Chris? Some bits need some tlc.
M
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
Re: Fibre Fault Guides
14-05-2017 3:49 PM
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Has PN received the updated information yet?
Specifically on time lines ... I see a number of PN support staff suggesting that FTTC has a 10 day stabilisation window. My understanding (largely from reading @Pettitto's documents when first created) that there is no "10 day training" with FTTC - it is simply subject to a 2 day open profile.
Has this changed?
In another browser tab, login into the Plusnet user portal BEFORE clicking the fault & ticket links
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
If this post helped, please click the Thumbs Up and if it fixed your issue, please click the This fixed my problem green button below.
Re: Fibre Fault Guides
15-05-2017 11:49 AM
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Re: Fibre Fault Guides
14-07-2017 8:33 AM
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Many thanks for the excellent guides which I will admit I have just got around to reading although a long term ADSL2+ customer with PN and a recent convert to fibre service.
Would it be possible at some stage to include a guide to G.Inp (retransmission) which is I believe is now fully rolled out to all Huawei FTTC cabinets, accepting that the issues with ECI FTTC cabinets is currently ongoing and resolution is still in the test phase.
I have found it very difficult to obtain any definitive information on the criteria for G.Inp implementation, a very grey area even amongst the very well informed on this or the kitz forums, a lot of contradictory theories but few facts available.
Re: Fibre Fault Guides
14-07-2017 8:57 AM
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In another browser tab, login into the Plusnet user portal BEFORE clicking the fault & ticket links
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
If this post helped, please click the Thumbs Up and if it fixed your issue, please click the This fixed my problem green button below.
Re: Fibre Fault Guides
15-07-2017 9:41 AM
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Is it my imagination or is there a reluctance by PN staff to comment or enter discussions on G.Inp (retransmission) questions or issues ?
See my post "G.Inp on Huawei FTTC Cabinet" dated 10/07/17 which has a similar (or lack of) response.
Re: Fibre Fault Guides
15-07-2017 12:03 PM - edited 15-07-2017 12:05 PM
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I don't think it's reluctance to answer, it is probable that nobody really knows the internal details of BT's DLM systems and how they work so they are unable to offer any discussion or answer your questions.
Re: Fibre Fault Guides
15-07-2017 12:35 PM
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Yes, you are probably correct, G.Inp (retransmission) application even on Huawei FTTC cabinets is certainly a very grey area.
Through the excellent guides on the kitz site I am beginning to get to grips with BT DLM operation, this post has provided additional information regarding line restoration process after a DLM intervention event.
I have suffered some considerable DS CRC, ES & SES rate increases this morning, very unusual for my line, my ILQ is heavily in the red now so expecting DLM intervention tomorrow morning, will be interesting to see if G.Inp will finally be enabled or just the much more likely action of applying DS interleaving ?
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