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Aspiring Contributor
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Message 1 of 4

Upload Speed (70/12)

Hi,

On DSL Checker, it looks like my line is capable of 71 Down and 17 Up. Actual achieved is 70 Down, but 12 Up.

Down seems like achieving max possible, yet Up is at the lowest. Is there profile / other reason why Up is not also at max of 17? Is there anything I can do to improve Up speed?

DSL Checker shows:

VDSL Range A (Clean)73.752.618.111.847AvailableAvailable-- 
VDSL Range B (Impacted)70.946.917.61038.2AvailableAvailable-- 
Max Observed Downstream Speed (Mbps)70.39        
Max Upstream Observed Speed (Mbps)11.74        
Observed Date2019-11-21        
Bridge TapN        
VRIN        
NTEFaceplateN        
Last Test Date28-11-2019        

 

Router Shows: Uptime 18 days+

 DownstreamUpstream
Attainable rate (kbit/s)6957211759
SNR margin (dB)17.50
Line attenuation (dB)13.47.4
Output power (dBmV)13.47.4

 

I think modem is reporting Up SNR incorrectly...

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3 REPLIES 3
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Sage
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Message 2 of 4

Re: Upload Speed (70/12)

There is absolutely nothing you can do and as you are within estimate BT won't do anything either.

Upstream operates at different frequencies to downstream What may be OK or one can have an effect on the other.

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Aspiring Contributor
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Message 3 of 4

Re: Upload Speed (70/12)

Thanks for your reply.  Looks like down SNR has dropped to 3 dB with 17.5 attn, so probably getting the most possible down. I do see Up SNR is 6.3 with 0 attn, so could probably squeeze a little more UP if that SNR could be reduced too.

xdslcmd: ADSL driver and PHY status
Status: Showtime
Max:    Upstream rate = 11718 Kbps, Downstream rate = 69572 Kbps
Bearer: 0, Upstream rate = 11741 Kbps, Downstream rate = 70397 Kbps
Mode:                   VDSL2 Annex B
VDSL2 Profile:          Profile 17a
               Down            Up
SNR (dB):        3.2             6.3
Attn(dB):        17.5            0.0
Pwr(dBm):        13.4            7.5

Thanks

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Distinguished Sage
Distinguished Sage
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Message 4 of 4

Re: Upload Speed (70/12)

up noise margin will stay about 6db unlike the down margin at 3db as G.INP active

looks like you have as good as you will get



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