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Author Topic: G.INP / Retransmission - Questions to Openreach  (Read 27311 times)

kitz

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G.INP / Retransmission - Questions to Openreach
« on: August 19, 2015, 09:39:25 PM »

As I'm sure most of you are already aware, BT Openreach is currently rolling out G.INP/Retransmission across its network.

Ian Lawrence who is their Chief Engineer and Director of Network Strategy & Engineering has kindly agreed to answer some of the more common questions about Openreach's implementation of Retransmission and progress to date posed my members of our community.

Those questions and Ian's answers are now available on this page: Openreach's implementation of G.INP / Retransmission
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AArdvark

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #1 on: August 19, 2015, 09:57:25 PM »

Thank you muchly.  ;D
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burakkucat

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #2 on: August 19, 2015, 09:57:35 PM »

Thank you for asking and for documenting the questions & answers.  :)
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AArdvark

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #3 on: August 19, 2015, 10:05:14 PM »

Interesting but a pity he was so 'non-comittal' on the vectoring question.  :(

In a nutshell 'What you have got' is what you have got !
Upstream G.INP will work if DLM thinks it is needed. (Only on non-ECI kit)
End of  ;D
« Last Edit: August 19, 2015, 10:09:44 PM by AArdvark »
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GigabitEthernet

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #4 on: August 19, 2015, 10:58:29 PM »

Ah so when I had G.INP on the upstream it was "normal".

Now when will I get it back :(
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AArdvark

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #5 on: August 19, 2015, 11:03:05 PM »

You will get it back in a few days  ..... if DLM thinks you need it.

The difficult part is DLM deciding you need it.

Also a 'few days' is not an SI defined unit of measurement, so your guess is as good as mine what it means  ;D
« Last Edit: August 19, 2015, 11:08:01 PM by AArdvark »
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Bowdon

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #6 on: August 20, 2015, 12:16:10 AM »

Thats a lot of info in a few questions.

It's good to be able to hear from the horses mouth, as they say :)
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roseway

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #7 on: August 20, 2015, 06:52:19 AM »

That's the best hard information we have on the subject, and it will hopefully scotch some of the wild rumours and speculation.
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underzone

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #8 on: August 20, 2015, 10:53:33 AM »

Good news that some g.inp will be available to us ECI cabinet users, even if it is only downstream. My line currently has 12Mb of RS overhead downstream, so I can't wait!
Thanks Kitz
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daveesh1

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #9 on: August 20, 2015, 03:02:13 PM »

Some when G inp is available on ECI Cabinet if modem is compatible in both directions will we get it in both directions
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Dray

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #10 on: August 20, 2015, 04:11:41 PM »

It says
Quote
To clarify, the ECI Infrastructure supports retransmission in the downstream direction only.
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burakkucat

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #11 on: August 20, 2015, 05:05:09 PM »

It says
Quote
To clarify, the ECI Infrastructure supports retransmission in the downstream direction only.

My understanding is that someone using an ECI B-FOCuS /r modem with a service that is supplied from a Huawei equipped cabinet would be able to benefit from G.Inp in both directions (if deemed necessary by the DLM) by making use of the OpenWrt firmware image that has been provided by jsamuel.
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AArdvark

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #12 on: August 20, 2015, 07:33:03 PM »

To clarify the clarification: (My understanding of)

ECI Cab to Anything will support DS G.INP if the modem supports it. No support for US G.INP.
Huawei Cab to Anything will support DS G.INP if the Modem supports it.  Excluding ECI & Others* US G.INP is enabled only if DLM thinks it is needed.

*There is a list of known Modems that do not support G.INP in one form or another on kitz. Caveats due to custom s/w etc are also noted on kitz.
  Searching kitz for latest news/updates is recommended.  ;D
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Dray

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #13 on: August 20, 2015, 07:42:38 PM »

I'm glad you sorted that out  ::)
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kitz

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Re: G.INP / Retransmission - Questions to Openreach
« Reply #14 on: August 20, 2015, 08:12:22 PM »

To clarify the clarification: (My understanding of)

ECI Cab to Anything will support DS G.INP if the modem supports it. No support for US G.INP.
Huawei Cab to Anything will support DS G.INP if the Modem supports it.  Excluding ECI & Others* US G.INP is enabled only if DLM thinks it is needed.


That is my interpretation too.
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