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Author Topic: G.INP - BT rollout 2015.  (Read 275183 times)

NewtronStar

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Re: G.INP - BT rollout 2015.
« Reply #600 on: June 21, 2015, 12:31:47 PM »

Looks like Baldeagle1 has joined the MK2 club  :)
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Bald_Eagle1

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Re: G.INP - BT rollout 2015.
« Reply #601 on: June 21, 2015, 12:32:00 PM »

Update 21/06/2015


It appears my connection (HG612 connected to Huawei cabinet) had the Mk2 G.INP 'fix' applied this morning (removed from upstream).

There was quite a hit percentage-wise on my US sync speed, but SNRM had been running quite low for a few days for an unknown reason (increased crosstalk again  :-\).


I have attached the ongoing montage for the latest f4 days & a pdf document in which I have attempted to highlight the relevant changes.

This was a Reason 1 resync, therefore not all the data was reset to zeros.
I had also previously noticed that not all the new G.INP data is reset to zero even when the modem is fully rebooted, which suggests that 'some' cumulative G.INP data is stored by BTOR (DLM/DSLAM?)

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Bald_Eagle1

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Re: G.INP - BT rollout 2015.
« Reply #602 on: June 21, 2015, 12:33:28 PM »

Looks like Baldeagle1 has joined the MK2 club  :)


You just beat me to it by a few seconds  :lol:.
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Bald_Eagle1

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Re: G.INP - BT rollout 2015.
« Reply #603 on: June 21, 2015, 12:42:37 PM »

I'll let the connection run 'as' is for a few days & then I'll reboot the modem to see what changes (if anything).

I'm not 100% sure that the Bearer 0 RR bits data is correct (RRC bits:      0      24).

As we didn't actually see this particular data pre-G.INP, I 'suspect' that DS & US are being reported transposed. Otherwise, why would it have been removed from DS when it is still G.INP active?.

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NewtronStar

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Re: G.INP - BT rollout 2015.
« Reply #604 on: June 21, 2015, 12:44:21 PM »

Sorry about that was looking in MDWS resyncs & LOS and noticed you had RDI 1 in the early morning and had a look at your B0 INP.

So i have 2 days to go  :fingers:
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roseway

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Re: G.INP - BT rollout 2015.
« Reply #605 on: June 21, 2015, 01:35:31 PM »

Quote
I'm not 100% sure that the Bearer 0 RR bits data is correct (RRC bits:      0      24).

That's the same as mine reports (I went to G.INP Mk2 5 days ago).
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  Eric

ejs

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Re: G.INP - BT rollout 2015.
« Reply #606 on: June 21, 2015, 03:48:02 PM »

If I am understanding the ITU G.998.4 pdf correctly, the RRC (Retransmission Return Channel) is used to send acknowledgements for what has been received. If something doesn't get acknowledged it gets re-transmitted. So if G.INP is only enabled for re-transmitting downstream data, then there will only be the RRC on the upstream.
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burakkucat

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Re: G.INP - BT rollout 2015.
« Reply #607 on: June 21, 2015, 03:51:20 PM »

If I am understanding the ITU G.998.4 pdf correctly, the RRC (Retransmission Return Channel) is used to send acknowledgements for what has been received. If something doesn't get acknowledged it gets re-transmitted. So if G.INP is only enabled for re-transmitting downstream data, then there will only be the RRC on the upstream.

Yes, indeed, that makes perfect sense.  :)
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kitz

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Re: G.INP - BT rollout 2015.
« Reply #608 on: June 21, 2015, 08:42:45 PM »

Quote
There was quite a hit percentage-wise on my US sync speed, but SNRM had been running quite low for a few days for an unknown reason (increased crosstalk again  :-\).

Cant see the actual figures from the graphs {edit swapped to MDWS figures} but as you say I can see 
upstream SNRm appeared to have been running at about 5.5dB  and came back up at 6.2 dB
Sync dropped from 4951 ->  4102

So a good portion of that speed loss is due the the loss of SNRm :( 


One of my neighbours went away of hol..  and since then Ive seen my SNRm increase to the best its been for quite a while.  It had dropped to about 6.3dB at one point, but its now running at about 7dB.   That .7dB has given me about an additional 1.5Mbps of attainable to play with.
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Bald_Eagle1

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Re: G.INP - BT rollout 2015.
« Reply #609 on: June 21, 2015, 09:09:15 PM »

Yes, indeed, that makes perfect sense.  :)


Yes it does.

Thanks, ejs for pointing that out.
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Bald_Eagle1

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Re: G.INP - BT rollout 2015.
« Reply #610 on: June 21, 2015, 09:26:40 PM »


Cant see the actual figures from the graphs {edit swapped to MDWS figures} but as you say I can see 
upstream SNRm appeared to have been running at about 5.5dB  and came back up at 6.2 dB
Sync dropped from 4951 ->  4102

So a good portion of that speed loss is due the the loss of SNRm :( 



Sorry. I should have also posted the before Mk2 G.INP & immediately after 'snapshot' graphs (now attached).

Also, from RESYNC.LOG:-

06/06/2015 12:46 - RESYNC detected (DS 21496 Kbps, US 4951 Kbps), AS = 24, Retrain Reason: 1 - G.INP Mk1 - G.INP active on DS & US
21/06/2015 06:21 - RESYNC detected (DS 21289 Kbps, US 4102 Kbps), AS = 40, Retrain Reason: 1 - G.INP Mk2 - G.INP removed from US

« Last Edit: June 21, 2015, 09:34:47 PM by Bald_Eagle1 »
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kitz

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Re: G.INP - BT rollout 2015.
« Reply #611 on: June 22, 2015, 09:22:17 AM »

No worries as luckily I could get it from mdws.   It does look like a good portion of the speed loss could be down to crosstalk or whatever caused the snrm drop. :(
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NewtronStar

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Re: G.INP - BT rollout 2015.
« Reply #612 on: June 22, 2015, 10:56:30 PM »

All i have witnessed during the G.INP MK2 rollout is that only the current G.INP MK1 users have made this transition there are still plenty of Huawei none G.INP lines waiting for this fix.

So it makes me think the fix is only for lines that currently have the G.INP profile on there lines ?
« Last Edit: June 22, 2015, 11:01:53 PM by NewtronStar »
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Oldjim

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Re: G.INP - BT rollout 2015.
« Reply #613 on: June 23, 2015, 09:50:31 AM »

This is probably in the wrong thread - if so please move it - are new cabs being provisioned with G.INP Mk2 as standard (my cab was enabled a few days ago) and as a side question are Openreach still supplying ECL modems rather than or as well as Huawei
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Jim
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KIAB

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Re: G.INP - BT rollout 2015.
« Reply #614 on: June 23, 2015, 11:06:12 AM »

On a Huawei cabinet here,with a HG612, & I just had major work done on my line,finally got rid of the aluminum cable,  :dance::yay: :dance: gone from 9Mb to 65MB, been up four days & I'm still waiting for a resync to see if speed creeps up a bit.
I now find G.INP is no longer active on my line. :(,  So , I presume it's G.INP MK2 has kicked in, which is a shame, as with G.INP MK1, I was getting around a extra 6Mb plus with it.
« Last Edit: June 23, 2015, 11:23:25 AM by KIAB »
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