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Author Topic: BRAS IP Profile  (Read 6481 times)

adslmax

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  • Posts: 1948
Re: BRAS IP Profile
« Reply #30 on: November 18, 2017, 01:38:05 AM »

Can I ask PN to reduced target SNR 3?
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gt94sss2

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Re: BRAS IP Profile
« Reply #31 on: November 18, 2017, 01:56:46 AM »

No, the ISPs can't control the SNR target on FTTC lines
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adslmax

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  • Posts: 1948
Re: BRAS IP Profile
« Reply #32 on: November 18, 2017, 02:06:57 AM »

Here is screenshot (top one is without DLM  :) and bottom one is with DLM  :no:

[attachment deleted by admin]
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ejs

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  • Posts: 2078
Re: BRAS IP Profile
« Reply #33 on: November 18, 2017, 07:32:51 AM »

adslmax's issue has nothing to do with XdB. The DLM must have seen something bad happening, apparently a Hub One rebooting a few times, and so decided to increase the level of retransmission and then band the speed to 74Mb. The DLM never tried to lower the target SNRM, adslmax was already connecting at the maximum possible speed.
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tiffy

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Re: BRAS IP Profile
« Reply #34 on: November 18, 2017, 08:24:49 AM »

Tiffy what you can do is use your current sync rate for example say 39999kbps if your on RTX-Low/fastpath you take 96.7% of current sync rate 39999kbps which = 38679kbps your IP Profile (38)

If your on RTX-High you take 92.0% of current sync rate 39999kbps which = 36799kbps your IP Profile (37)

So your DS IP Profile would be 96.7 percent of 36906 = 35688kbps IP profile (36)

Back on the original topic.

Yes, I appreciate I can "reverse engineer" my known parameters and work out what my BRAS IP profile "should" be, I know that I am on retx low profile since the last re-synch, however, if you can remember back to a few weeks ago when yourself and j0hn advised me that my IP profile was stuck and I should drop PPP session to reset, I chose to disregard this advice for some time but eventually applied resulting in a substantial DS synch/data throughput increase with the new DS IP profile.

It's nice to know what the BRAS IP profiles actually are as well as what they "should" be by data TP ratio calculation based on retx low/high profiles.
« Last Edit: November 18, 2017, 07:32:16 PM by tiffy »
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Vodafone FTTP 200/28, VF THG3000 Hub
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