Telkom VDSL: Pathetic Upload Bandwidth

minkukel

minkukel

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Dec 27, 2004
Messages
2,371
DSL stats on a Fritz!box

Negotiated Connection Properties
Receive direction Send direction
Max. DSLAM throughput kbit/s 45056 3072
Min. DSLAM throughput kbit/s 64 64
Attainable throughput kbit/s 118106 9136
Current throughput kbit/s 45054 3072
Seamless rate adaptation off off

Latency 8 ms 4 ms
Impulse noise protection 3 2
G.INP off off

Signal-to-noise ratio dB 25 18
Bitswap off on
Line attenuation dB 12 8

Profile 17a
G.Vector off off

Carrier record A43 A43
 
F

Franna

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Apr 18, 2005
Messages
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Latest line stats after VDSL POTS filter replacement:

VDSL Port Details Upstream Downstream
Line Rate: 3.129 Mbps 45.147 Mbps
Actual Net Data Rate: 3.072 Mbps 45.055 Mbps
Trellis Coding: ON ON
SNR Margin: 17.3 dB 11.1 dB
Actual Delay: 4 ms 8 ms
Transmit Power: - 8.7 dBm 14.4 dBm
Receive Power: -23.7 dBm -2.8 dBm
Actual INP: 2.0 symbols 3.0 symbols
Total Attenuation: 15.0 dB 17.2 dB
Attainable Net Data Rate: 8.947 Mbps 72.048 Mbps
 
G

GrammatonCleric

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Nov 17, 2015
Messages
167
Apparently VDSL doesn't like joined copper cables.

The technician who came to my house last week said a VDSL line would be impacted by the amount of times the Telkom cables had to be replaced after being stolen.

The area I reside in is covered by a VDSL blanket but I can't get VDSL because of the amount of joins in the cable infrastructure, so the best I can get is 20meg ADSL :(

Hopefully your issue can be solved. I just thought I'd mention this as a possibility :)
 
F

Franna

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Come on Telkom, my 10MB e-mail attachment is taking 5 minutes to send on a 20Mbps VDSL line...
 
F

Franna

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Something is odd. Telkom has always artificially limited the upload bandwidth to 3Mbps for a 40Mbps VDSL line. But now the upstream sync speed is 10Mbps for a 40Mbps VDSL line...

BEFORE (2014):
================================
VDSL Training Status: Showtime
Mode: VDSL2 Annex B
VDSL Profile: Profile 17a
Traffic Type: PTM Mode
Line Rate: 3.092 Mbps 41.039 Mbps
Actual Net Data Rate: 3.072 Mbps 40.959 Mbps
Attainable Net Data Rate: 16.571 Mbps 54.570 Mbps
================================

NOW (2017):
================================
VDSL Training Status: Showtime
Mode: VDSL2 Annex B
VDSL Profile: Profile 17a
Traffic Type: PTM Mode
Line Rate: 10.273 Mbps 45.147 Mbps
Actual Net Data Rate: 10.238 Mbps 45.055 Mbps
Attainable Net Data Rate: 15.043 Mbps 59.333 Mbps
================================

Speedtest Result - http://www.speedtest.net/my-result/6832091339
 
Last edited:
Z

zamicro

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Oct 22, 2007
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Franna said:
Something is odd. Telkom has always artificially limited the upload bandwidth to 3Mbps for a 40Mbps VDSL line. But now the upstream sync speed is 10Mbps for a 40Mbps VDSL line...

BEFORE (2014):
================================
VDSL Training Status: Showtime
Mode: VDSL2 Annex B
VDSL Profile: Profile 17a
Traffic Type: PTM Mode
Line Rate: 3.092 Mbps 41.039 Mbps
Actual Net Data Rate: 3.072 Mbps 40.959 Mbps
Attainable Net Data Rate: 16.571 Mbps 54.570 Mbps
================================

NOW (2017):
================================
VDSL Training Status: Showtime
Mode: VDSL2 Annex B
VDSL Profile: Profile 17a
Traffic Type: PTM Mode
Line Rate: 10.273 Mbps 45.147 Mbps
Actual Net Data Rate: 10.238 Mbps 45.055 Mbps
Attainable Net Data Rate: 15.043 Mbps 59.333 Mbps
================================

Maybe a VDSL upstream bandwidth increase on the cards???
Click to expand...
Franna, did you get a new modem recently?
 
F

Franna

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Apr 18, 2005
Messages
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zamicro said:
Franna, did you get a new modem recently?
Click to expand...

Nope, the same Zyxel SBG3300-N VDSL Router as in use since 2014. Also confirmed it on another 40Mbps and 20Mbps/5Mbps VDSL line.

ISP account on the line is the CrystalWeb Capped Business package.

According to the speedtest it is definitely running at 10Mbps upstream... WHOOPA!!!
http://www.speedtest.net/my-result/6832091339
 
Last edited:
C

CrazyBob

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Jun 29, 2005
Messages
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Last edited:
lordnokon

lordnokon

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Hmmmm No change here - Running WebAfrica Business Account

Zyxel SBG3300-N VDSL Router

============================================================================
VDSL Training Status: Showtime
Mode: VDSL2 Annex B
VDSL Profile: Profile 17a
Traffic Type: PTM Mode
Link Uptime: 0 day: 15 hours: 3 minutes
============================================================================
VDSL Port Details Upstream Downstream
Line Rate: 3.129 Mbps 45.147 Mbps
Actual Net Data Rate: 3.072 Mbps 45.055 Mbps
Trellis Coding: ON ON
SNR Margin: 4.6 dB 24.1 dB
Actual Delay: 4 ms 8 ms
Transmit Power: -20.6 dBm 14.5 dBm
Receive Power: -41.3 dBm 2.1 dBm
Actual INP: 2.0 symbols 3.0 symbols
Total Attenuation: 0.0 dB 15.2 dB
Attainable Net Data Rate: 4.094 Mbps 122.482 Mbps
============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3
Line Attenuation(dB): 13.7 23.9 N/A N/A 10.8 22.7 20.8
Signal Attenuation(dB): 13.7 23.5 N/A N/A 10.7 22.3 20.7
SNR Margin(dB): 4.7 4.6 N/A N/A 23.9 24.3 23.9
Transmit Power(dBm):-30.4 -21.1 N/A N/A 12.6 7.3 6.9
============================================================================
 
Totempole

Totempole

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Sep 21, 2011
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I really wanted 20MB VDSL. I can only get Fibre with Vuma unfortunately. :(
 
DrJohnZoidberg

DrJohnZoidberg

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Jul 24, 2006
Messages
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They took too long though. I'm on fibre now and just downgraded my DSL to 2Mbit (to have as a backup).
 
O

OneKnight

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Mar 26, 2017
Messages
272
Totempole said:
I really wanted 20MB VDSL. I can only get Fibre with Vuma unfortunately. :(
Click to expand...

Are you sure you didn't switch the two terms around?

Who wants xDSL instead of fibre? :confused:

That's like saying I really wanted a VW Polo, but can only get a Porsche unfortunately.
 
DrJohnZoidberg

DrJohnZoidberg

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Joined
Jul 24, 2006
Messages
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Johnatan56 said:
Wouldn't it be cheaper to have an LTE back-up? You're in TV as well, Telkom, CellC and Vodacom have LTE coverage.
Click to expand...

I can live with R165pm. It will hardly ever get used and it's already set up inside my firewall with no additional hardware or purchases required.
 
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