ADSL versus VDSL

Venom Maker

Venom Maker

Well-Known Member
Joined
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Messages
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Location
Nelspruit
I have upgraded my ADSL line to a VDSL line, I will post a couple of speed checks prior and after the upgrade

Current connection via Afrihost 8 Mbps business uncapped account

13/07/16 - http://netgauge.ookla.com/share/495628215.png
14/07/16 - http://netgauge.ookla.com/share/496285455.png
15/07/16 - http://netgauge.ookla.com/share/496845576.png
16/07/16 -
17/07/16 - http://netgauge.ookla.com/share/497977106.png
18/07/16 - http://netgauge.ookla.com/share/499088979.png got the SNR up to 12 DB
27/07/16 - http://netgauge.ookla.com/share/503946965.png
 
Last edited:
You should have maybe a milisecond lower latency (if you're lucky), closer to advertised speeds (lower overheads than ADSL, you should have about 17-18Mbps download on a 20Mbps connection versus the 16Mbps on 20Mbps ADSL) and higher upload (2/3Mbps depending on 20/40Mbps).
 
I see the ping time has dropped from 34ms to 18ms is this due to a drop off in use of bandwidth in my area?
 
dingaanone said:
I see the ping time has dropped from 34ms to 18ms is this due to a drop off in use of bandwidth in my area?
Click to expand...

Is white rivier in the northern part of the country (gauteng upwards) as Afrihost stated in the feedback thread that there was a problem on the 13th due to some link going down.

Would you mind also posting your line stats before and after with a ping and tracert before and after? If the second hope just has stars, could you also post a ping to bras.afrihost.com? I'm interested in the difference as well, real world. Then hopefully one day you can compare it to fiber.
 
I must update my Location I am in Nelspruit now

traceroute to bras.afrihost.com (155.239.255.250), 30 hops max, 38 byte packets
1 * * *
2 * * *
3 * * *
4 * * *
5 * * *
----Traceroute end----
 
Last edited:
Before Ping - http://netgauge.ookla.com/share/496845576.png

Pinging bras.afrihost.com [155.239.255.250] with 32 bytes of data:
Reply from 155.239.255.250: bytes=32 time=8ms TTL=63
Reply from 155.239.255.250: bytes=32 time=9ms TTL=63
Reply from 155.239.255.250: bytes=32 time=9ms TTL=63
Reply from 155.239.255.250: bytes=32 time=8ms TTL=63

Ping statistics for 155.239.255.250:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 8ms, Maximum = 9ms, Average = 8ms

xDSL Port Details Upstream Downstream
Line Rate: 0.928 Mbps 8.160 Mbps
Actual Net Data Rate: 0.896 Mbps 8.128 Mbps
Trellis Coding: ON ON
SNR Margin: 6.0 dB 6.2 dB
Actual Delay: 0 ms 0 ms
Transmit Power: 12.9 dBm 19.8 dBm
Receive Power: 4.7 dBm 4.7 dBm
Actual INP: 0.0 symbols 0.0 symbols
Total Attenuation: 0.0 dB 0.0 dB
Attainable Net Data Rate: 1.012 Mbps 8.556 Mbps

After Ping - http://netgauge.ookla.com/share/496854422.png
 
Last edited:
dingaanone said:
Before Ping - http://netgauge.ookla.com/share/496845576.png

Pinging bras.afrihost.com [155.239.255.250] with 32 bytes of data:
Reply from 155.239.255.250: bytes=32 time=8ms TTL=63
Reply from 155.239.255.250: bytes=32 time=9ms TTL=63
Reply from 155.239.255.250: bytes=32 time=9ms TTL=63
Reply from 155.239.255.250: bytes=32 time=8ms TTL=63

Ping statistics for 155.239.255.250:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 8ms, Maximum = 9ms, Average = 8ms

xDSL Port Details Upstream Downstream
Line Rate: 0.928 Mbps 8.160 Mbps
Actual Net Data Rate: 0.896 Mbps 8.128 Mbps
Trellis Coding: ON ON
SNR Margin: 6.0 dB 6.2 dB
Actual Delay: 0 ms 0 ms
Transmit Power: 12.9 dBm 19.8 dBm
Receive Power: 4.7 dBm 4.7 dBm
Actual INP: 0.0 symbols 0.0 symbols
Total Attenuation: 0.0 dB 0.0 dB
Attainable Net Data Rate: 1.012 Mbps 8.556 Mbps

After Ping - http://netgauge.ookla.com/share/496854422.png
Click to expand...

With those stats you won't be able to get 20Mbps, you are barely syncing at 8Mbps.
 
I get almost the full 40Mbps on my VDSL connection. Surprisingly low overheads for a DSL connection.
 
This is the stats from Afrihost

ADSL Router Results (Telkom Exchange to Your Location)
General Status
There no defects on the line.
Status
Maximum Sync Rate
10240kbps
Maximum speed at which the DSLAM and your modem will communicate.
Current Downstream Sync
8128kbps
The current download speed established between the DSLAM and your modem.
SNR (Signal-to-Noise Ratio)
6.5dB
Signal-to-Noise Ratio on the line. A value below 6dB can cause problems.
Attenuation
13.5dB
The amount of resistance on the line. A value below 55dB is good.
DSLAM Results (Your Location to Telkom Exchange)
General Status
There no defects on the line.
Status
Maximum Sync Rate
1024kbps
Maximum speed at which the DSLAM and your modem will communicate.
Current Upstream Sync
896kbps
The current download speed established between the DSLAM and your modem.
SNR (Signal-to-Noise Ratio)
7.0dB
Signal-to-Noise Ratio on the line. A value below 6dB can cause problems.
Attenuation
21.0dB
The amount of resistance on the line. A value below 55dB is good.
 
dingaanone said:
This is the stats from Afrihost

ADSL Router Results (Telkom Exchange to Your Location)
General Status
There no defects on the line.
Status
Maximum Sync Rate
10240kbps
Maximum speed at which the DSLAM and your modem will communicate.
Current Downstream Sync
8128kbps
The current download speed established between the DSLAM and your modem.
SNR (Signal-to-Noise Ratio)
6.5dB
Signal-to-Noise Ratio on the line. A value below 6dB can cause problems.
Attenuation
13.5dB
The amount of resistance on the line. A value below 55dB is good.
DSLAM Results (Your Location to Telkom Exchange)
General Status
There no defects on the line.
Status
Maximum Sync Rate
1024kbps
Maximum speed at which the DSLAM and your modem will communicate.
Current Upstream Sync
896kbps
The current download speed established between the DSLAM and your modem.
SNR (Signal-to-Noise Ratio)
7.0dB
Signal-to-Noise Ratio on the line. A value below 6dB can cause problems.
Attenuation
21.0dB
The amount of resistance on the line. A value below 55dB is good.
Click to expand...

Back when I had 10Mbps ADSL, the SNR was 6.0dB on the dot and the connection was perfectly stable. You can try upping your sync to 10Mbps.
 
Bryn said:
Back when I had 10Mbps ADSL, the SNR was 6.0dB on the dot and the connection was perfectly stable. You can try upping your sync to 10Mbps.
Click to expand...

He could try, but it definitely won't be able to handle 20Mbps VDSL.
 
Now I'm totally confused guys, see the stats below and the connection is stable at 30 Mbs - What am I missing if the SNR is 6db on a 10 Mbs connection will this stay constant if the line speed is upgraded to 20 Mbs

VDSL Port Details Upstream Downstream
Line Rate: 5.437 Mbps 30.281 Mbps
Actual Net Data Rate: 5.418 Mbps 30.232 Mbps
Trellis Coding: ON ON
SNR Margin: 6.0 dB 6.1 dB
Actual Delay: 0 ms 0 ms
Transmit Power: 6.2 dBm 13.1 dBm
Receive Power: -9.2 dBm -13.5 dBm
Actual INP: 0.0 symbols 0.0 symbols
Total Attenuation: 15.4 dB 26.7 dB
Attainable Net Data Rate: 5.387 Mbps 30.295 Mbps
 
dingaanone said:
Now I'm totally confused guys, see the stats below and the connection is stable at 30 Mbs - What am I missing if the SNR is 6db on a 10 Mbs connection will this stay constant if the line speed is upgraded to 20 Mbs

VDSL Port Details Upstream Downstream
Line Rate: 5.437 Mbps 30.281 Mbps
Actual Net Data Rate: 5.418 Mbps 30.232 Mbps
Trellis Coding: ON ON
SNR Margin: 6.0 dB 6.1 dB
Actual Delay: 0 ms 0 ms
Transmit Power: 6.2 dBm 13.1 dBm
Receive Power: -9.2 dBm -13.5 dBm
Actual INP: 0.0 symbols 0.0 symbols
Total Attenuation: 15.4 dB 26.7 dB
Attainable Net Data Rate: 5.387 Mbps 30.295 Mbps
Click to expand...

Sorry, your router messed up the line stats here:
dingaanone said:
Before Ping - http://netgauge.ookla.com/share/496845576.png

Pinging bras.afrihost.com [155.239.255.250] with 32 bytes of data:
Reply from 155.239.255.250: bytes=32 time=8ms TTL=63
Reply from 155.239.255.250: bytes=32 time=9ms TTL=63
Reply from 155.239.255.250: bytes=32 time=9ms TTL=63
Reply from 155.239.255.250: bytes=32 time=8ms TTL=63

Ping statistics for 155.239.255.250:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 8ms, Maximum = 9ms, Average = 8ms

xDSL Port Details Upstream Downstream
Line Rate: 0.928 Mbps 8.160 Mbps
Actual Net Data Rate: 0.896 Mbps 8.128 Mbps
Trellis Coding: ON ON
SNR Margin: 6.0 dB 6.2 dB
Actual Delay: 0 ms 0 ms
Transmit Power: 12.9 dBm 19.8 dBm
Receive Power: 4.7 dBm 4.7 dBm
Actual INP: 0.0 symbols 0.0 symbols
Total Attenuation: 0.0 dB 0.0 dB
Attainable Net Data Rate: 1.012 Mbps 8.556 Mbps

After Ping - http://netgauge.ookla.com/share/496854422.png
Click to expand...

No attenuation and barely syncing SNR. The Afrihost one also wasn't that great.
Your VDSL port is a lot better.
 
I have no idea what's going on here, you're syncing at 30Mbps down and 5Mbps up?
 
I am sorry for the confusion cased, the stats supplied are not for my connection, I was merely trying to get an explanation as to why the SNR is 6 DB and this connection is running at 30 Mbs and some comments have been made because my connection has a SNR of 6.1 Db I will not be able to achieve 20 Mbs with a upgrade to VDSL.
 
Also waiting for a 40Mbps VDSL upgrade.

============================================================================
ADSL Training Status: Showtime
Mode: ADSL2+ Annex A
Traffic Type: ATM Mode
Link Uptime: 0 day: 8 hours: 42 minutes
============================================================================
ADSL Port Details Upstream Downstream
Line Rate: 1.034 Mbps 16.429 Mbps
Actual Net Data Rate: 1.023 Mbps 16.380 Mbps
Trellis Coding: ON ON
SNR Margin: 11.5 dB 8.3 dB
Actual Delay: 8 ms 8 ms
Transmit Power: 12.6 dBm 19.9 dBm
Receive Power: 4.7 dBm 4.7 dBm
Actual INP: 1.5 symbols 5.0 symbols
Total Attenuation: 11.6 dB 19.0 dB
Attainable Net Data Rate: 1.244 Mbps 24.736 Mbps
============================================================================
 
stormtactics said:
Also waiting for a 40Mbps VDSL upgrade.

============================================================================
ADSL Training Status: Showtime
Mode: ADSL2+ Annex A
Traffic Type: ATM Mode
Link Uptime: 0 day: 8 hours: 42 minutes
============================================================================
ADSL Port Details Upstream Downstream
Line Rate: 1.034 Mbps 16.429 Mbps
Actual Net Data Rate: 1.023 Mbps 16.380 Mbps
Trellis Coding: ON ON
SNR Margin: 11.5 dB 8.3 dB
Actual Delay: 8 ms 8 ms
Transmit Power: 12.6 dBm 19.9 dBm
Receive Power: 4.7 dBm 4.7 dBm
Actual INP: 1.5 symbols 5.0 symbols
Total Attenuation: 11.6 dB 19.0 dB
Attainable Net Data Rate: 1.244 Mbps 24.736 Mbps
============================================================================
Click to expand...

Yours looks like you should keep it at 20. Don't know why you're syncing at 16 though, could be a line issue of ASSIA.
 
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