SNR and Line Attenuation

Here are mine...we're lucky enough to have the DSLAM in the same building.


ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.1 (G.DMT)
Capacity Used: 45% 49%
Noise Margin: 19.0 dB 13.0 dB
Output Power: 1.0 dBm 1.0 dBm
Attenuation: 7.0 dB 4.5 dB
 
Sorry for going a bit off topic here, but in my quest to solve the mystery of my higher latencies, can anyone please have a look at my ping -t results to the saix routing server. I used both my Axxess local only account, as well as my normal (local + intl) Cybersmart account.

My Axxess local only SAIX Account:

Pinging tpr-route-server.saix.net [196.25.9.46] with 32 bytes of data:

Reply from 196.25.9.46: bytes=32 time=75ms TTL=252
Reply from 196.25.9.46: bytes=32 time=109ms TTL=252
Reply from 196.25.9.46: bytes=32 time=281ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=203ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=124ms TTL=252
Reply from 196.25.9.46: bytes=32 time=249ms TTL=252
Reply from 196.25.9.46: bytes=32 time=109ms TTL=252
Reply from 196.25.9.46: bytes=32 time=93ms TTL=252
Reply from 196.25.9.46: bytes=32 time=78ms TTL=252
Reply from 196.25.9.46: bytes=32 time=93ms TTL=252
Reply from 196.25.9.46: bytes=32 time=218ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=187ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252
Reply from 196.25.9.46: bytes=32 time=62ms TTL=252

My Cybersmart SAIX account:

Pinging tpr-route-server.saix.net [196.25.9.46] with 32 bytes

Reply from 196.25.9.46: bytes=32 time=138ms TTL=252
Reply from 196.25.9.46: bytes=32 time=246ms TTL=252
Reply from 196.25.9.46: bytes=32 time=52ms TTL=252
Reply from 196.25.9.46: bytes=32 time=50ms TTL=252
Reply from 196.25.9.46: bytes=32 time=50ms TTL=252
Reply from 196.25.9.46: bytes=32 time=248ms TTL=252
Reply from 196.25.9.46: bytes=32 time=53ms TTL=252
Reply from 196.25.9.46: bytes=32 time=186ms TTL=252
Reply from 196.25.9.46: bytes=32 time=77ms TTL=252
Reply from 196.25.9.46: bytes=32 time=90ms TTL=252
Reply from 196.25.9.46: bytes=32 time=93ms TTL=252
Reply from 196.25.9.46: bytes=32 time=89ms TTL=252
Reply from 196.25.9.46: bytes=32 time=188ms TTL=252
Reply from 196.25.9.46: bytes=32 time=98ms TTL=252
Reply from 196.25.9.46: bytes=32 time=52ms TTL=252
Reply from 196.25.9.46: bytes=32 time=52ms TTL=252
Reply from 196.25.9.46: bytes=32 time=52ms TTL=252
Reply from 196.25.9.46: bytes=32 time=51ms TTL=252
Reply from 196.25.9.46: bytes=32 time=53ms TTL=252
Reply from 196.25.9.46: bytes=32 time=53ms TTL=252
Reply from 196.25.9.46: bytes=32 time=51ms TTL=252
Reply from 196.25.9.46: bytes=32 time=72ms TTL=252
Reply from 196.25.9.46: bytes=32 time=51ms TTL=252
Reply from 196.25.9.46: bytes=32 time=53ms TTL=252
Reply from 196.25.9.46: bytes=32 time=53ms TTL=252

As you can see, something is not lekka with the routing of my connection. Five of my friends in Bloem, all have 384k connection like me, and all 5 use Cybersmart as their ISP as well, and they yield ping results of between 35ms - 40ms MAX using this same test, without any big ping differences like I have. And ingame in BF2 they ping 28ms - 40ms !!! :mad: where I on the otherhand ping 55ms - 69ms with flucuations of above 100ms sometimes which comes down again.

So what does this mean ? Could it be my line ? I doubt it, since I have never ever had any line disconnections, desyncs or anything and my line stats are really good. I think its a routing problem... ?
 
Last edited:
Okay, this 1st batch is with my Cybersmart account:

Pinging 41.242.128.1 with 32 bytes of data:

Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=69ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=62ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=58ms TTL=252
Reply from 41.242.128.1: bytes=32 time=67ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=58ms TTL=252
Reply from 41.242.128.1: bytes=32 time=70ms TTL=252
Reply from 41.242.128.1: bytes=32 time=57ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=58ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=58ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=58ms TTL=252
Reply from 41.242.128.1: bytes=32 time=58ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=58ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=58ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=58ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=58ms TTL=252
Reply from 41.242.128.1: bytes=32 time=58ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=57ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=61ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=59ms TTL=252
Reply from 41.242.128.1: bytes=32 time=60ms TTL=252
Reply from 41.242.128.1: bytes=32 time=57ms TTL=252

Ping statistics for 41.242.128.1:
Packets: Sent = 75, Received = 75, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 57ms, Maximum = 70ms, Average = 59ms


This second batch I decided to use my IS account:

Pinging 41.242.128.1 with 32 bytes of data:

Reply from 41.242.128.1: bytes=32 time=80ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243
Reply from 41.242.128.1: bytes=32 time=93ms TTL=243
Reply from 41.242.128.1: bytes=32 time=78ms TTL=243

Ping statistics for 41.242.128.1:
Packets: Sent = 62, Received = 62, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 78ms, Maximum = 93ms, Average = 81ms

..sigh :(

BTW MrNutz, to what does that 41. IP point to ?
 
it has to do with the Radius .

if you have WILD adsl account problems (Ti) - they often let you ping that ip with a -t - then they can exactly see what username /ip is querying it.

it has a clean but small pipe - thus the ping times are optimal.

doesn't seem then that you have any connection issues...if u had routing issues - those ping times would have been MUCH higher
 
Yeah, but still, it doesn't explain as to WHY my friends have so low ping times in comparison with mine. Could the only reason then be that my exchange is near full capacity in comparison with theirs ? or did their exchanges get upgraded ? I just want answers thats all...
 
i hear ya... telkom/saix are not gonna be worried anything if your latency is sub 100ms at all....thats the sad part..they consider it to be "OPTIMAL" - yet not PERFECT as we would like.

PCTECH had a similar problem a while back - but it then had been a case of pings going over 120-150 and that for local is not acceptable.

50-60ms is ok for bf2 - shouldn't have problems. if it spikes REGULARLY - then u might have to build some evidence - and try to attempt logging a ticket.

then its IPNET at saix who should have a look..
 
Yeah I already emailed SGS's gamesmaster with a whole bunch of tests that I performed on my side. They are currently closed till next year 14 January, but I will wait patiently and see what he has to say. He did manage to fix my problem last year, when I was in a similar position with my ping, hopefully he can help me again. :)

I know a 50-60 ping is ok for BF2 and basically any game, its just , my friends' pings are lower, and I would like to know why mine is higher, and if anything can be done physically to get it lower, then I would like something to be done about it. I usually was in the 38- 50ms range, so I know it can go lower...

Anyhow, thanks for your help and advice.
 
Luke7777 said:
Damn, all this talk about 4mb made me hungry........so I ordered some too :D
My stats currently : (will see how it changes....)
Connection Speed 384 kbps 128 kbps
Line Attenuation 6.0 db 3.5 db
Noise Margin 30.3 db 31.0 db
Click to expand...
Had a quick look (returning home from golf, on my way to work :)) and my stats are now :
Connection Speed 4096 kbps 384 kbps
Line Attenuation 6.0 db 3.5 db
Noise Margin 30.3 db 31.0 db


Is it normal for attenuation and noise margin to stay the same ? btw, looks like my download speeds are still limited to 384 though :confused:

/Update : The beast has awakened :D
 
Last edited:
Luke7777 said:
Had a quick look (returning home from golf, on my way to work :)) and my stats are now :
Connection Speed 4096 kbps 384 kbps
Line Attenuation 6.0 db 3.5 db
Noise Margin 30.3 db 31.0 db

Is it normal for attenuation and noise margin to stay the same ? btw, looks like my download speeds are still limited to 384 though :confused:
Click to expand...

well then you are MORE than lucky!

those values are superb for our little country :)
 
My appolgies for brining up an old thread(I used the search function), my adsl is now finally installed and I have the following stats:

Downstream Upstream
SNR Margin 38.0 dB 31 dB
Line Attenuation 4.5 dB 2.5 dB

Are these stats any good or not? As I understand it currently the lower your attenuation and the higher the snr the better, or am I totally misguided?
 
Arzy said:
My appolgies for brining up an old thread(I used the search function), my adsl is now finally installed and I have the following stats:

Downstream Upstream
SNR Margin 38.0 dB 31 dB
Line Attenuation 4.5 dB 2.5 dB

Are these stats any good or not? As I understand it currently the lower your attenuation and the higher the snr the better, or am I totally misguided?
Click to expand...

brilliant specs!
 
Ok, I'm happy to hear the specs are good.

I'm thinking the possible reasons for this is:

1) It took Telkom almost 2 years to actually get this line working
2) I'm not even 300m away from the exchange
3) It's a entire brand new setup by Telkom, I've actually had to watch the poar the cement to build it on etc.
4) I think I am the only person who is currently receiving DSL from this exchange as nobody else put up a big enough fight :)

Just to clarify again though, you want low attenuation and high SNR margin?
 
No, only took 512 for the time being, will upgrade at a later stage again.
 
SNR Margin 40.1 22.0 dB
Line Attenuation 33.9 18.5 dB
Errored Seconds 0 12
Loss of Signal 0 0
Loss of Frame 0 0
CRC Errors 0 12
Data Rate 384 128 kbps
Latency FAST FAST

12 errors in 15min.....
Is this bad????
How about the other stats??

Thanks!!
 
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