G.Inp Data Throughput Ratio
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G.Inp Data Throughput Ratio
08-10-2017 10:38 AM
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When DLM applied G.Inp (retransmission) to my line some 7 weeks after migration from ADSL to VDSL I noted that my DS synch speed increased by approx. 3 Mbps. however my DS data speed actually decreased slightly from previous, I believe this is due to the lower throughput ratio associated with G.Inp, in my case being on "retx high" which gives approx. 91% ratio as apposed to "retx low" which gives approx. 97% throughput ratio.
On my line, (DS IP profile / DS synch speed X 100) 34.84/38.26 X 100 = 91%
My questions are:
1/. Why should by line be on "retx high" profile with the associated 91% throughput ratio when it is very stable and noise free ?
2/. Is this a BT DLM function only or do PN have any control over this parameter ?
I am a big fan of G.Inp (retransmission) and consider myself lucky to be on a Huawei DSLAM (FTTC cabinet), it has completely eliminated any DS ES's I had previously and keeps me consistantly in ILQ green state.
Re: G.Inp Data Throughput Ratio
09-10-2017 9:19 AM
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Bob Pullen
Plusnet Product Team
If I've been helpful then please give thanks ⤵
Re: G.Inp Data Throughput Ratio
09-10-2017 10:08 AM
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Bob,
Many thanks for the reply and confirmation that as I thought BT DLM controlles these parameters.
It would appear that DLM "retx high" profile is applied by default to newly "G.Inp'ed" lines giving it's associated 91% data throughput ratio as opposed to approx 97% ratio associated with "retx low" profile regardless of the line quality, perhaps at some stage DLM will decide to re-profile lines that are deemed to support "retx low" profile ?
As stated earlier, even though I have lost a little data throughput speed since G.Inp was applied, the virtual elimination of DS ES's is in my opinion worth the loss, however, with 97% throughput ration G.Inp would be even better !
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