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Author Topic: ADSL Statistics SNR Margin drpoing like a stone  (Read 3304 times)

covlad1987

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ADSL Statistics SNR Margin drpoing like a stone
« on: February 23, 2010, 02:31:46 PM »

hi and again im wondering if i should have stayed with bt

talk talk pro
Mode: ADSL2 PLUS
Type: ANNEX_A
Status: Showtime 
 
  Downstream Upstream
Rate (Kbps): 8230 kbps 995 kbps
 
SNR Margin (dB): 2.7  6.5
Attenuation (dB): 42.0  23.2 
Output Power (dBm): 0.0  12.3 

 
Super Frames: 56550 56554
RS Correctable Errors: 22216 0
RS Uncorrectable Errors: 41 0
 
HEC Errors: 73 0
Total Cells: 442048 176294
Data Cells: 21638 6525
Bit Errors: 0 0

modem comes back on SNR is 6.0 then starts to drop it gets to 1.6 then it goes

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\joew>tracert www.google.co.uk

Tracing route to www-tmmdi.l.google.com [66.102.9.103]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  192.168.1.1
  2     9 ms     8 ms     9 ms  78.145.96.1
  3     8 ms    20 ms    10 ms  78.151.227.1
  4     9 ms     9 ms     9 ms  xe-11-0-0-rt001.bir.as13285.net [78.151.225.67]

  5    11 ms    10 ms    11 ms  xe-11-2-0-rt001.man.as13285.net [62.24.240.0]
  6    18 ms    17 ms    19 ms  62.24.240.41
  7    19 ms    15 ms    15 ms  host-78-144-0-200.as13285.net [78.144.0.200]
  8    16 ms    19 ms    15 ms  xe-10-0-0-scr010.sov.as13285.net [78.144.0.228]

  9    22 ms    20 ms    19 ms  google-pp-sov.as13285.net [78.144.5.6]
 10    33 ms    18 ms    18 ms  209.85.255.175
 11    77 ms    31 ms    31 ms  209.85.240.158
 12    28 ms    31 ms    28 ms  64.233.174.187
 13    40 ms    36 ms    36 ms  64.233.174.14
 14    29 ms    29 ms    29 ms  lm-in-f103.1e100.net [66.102.9.103]

Trace complete.

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\joew>tracert www.google.co.uk

Tracing route to www-tmmdi.l.google.com [66.102.9.103]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  192.168.1.1
  2     9 ms     8 ms     9 ms  78.145.96.1
  3     8 ms    20 ms    10 ms  78.151.227.1
  4     9 ms     9 ms     9 ms  xe-11-0-0-rt001.bir.as13285.net [78.151.225.67]

  5    11 ms    10 ms    11 ms  xe-11-2-0-rt001.man.as13285.net [62.24.240.0]
  6    18 ms    17 ms    19 ms  62.24.240.41
  7    19 ms    15 ms    15 ms  host-78-144-0-200.as13285.net [78.144.0.200]
  8    16 ms    19 ms    15 ms  xe-10-0-0-scr010.sov.as13285.net [78.144.0.228]

  9    22 ms    20 ms    19 ms  google-pp-sov.as13285.net [78.144.5.6]
 10    33 ms    18 ms    18 ms  209.85.255.175
 11    77 ms    31 ms    31 ms  209.85.240.158
 12    28 ms    31 ms    28 ms  64.233.174.187
 13    40 ms    36 ms    36 ms  64.233.174.14
 14    29 ms    29 ms    29 ms  lm-in-f103.1e100.net [66.102.9.103]

Trace complete

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\joew>ping www.google.co.uk -t

Pinging www-tmmdi.l.google.com [66.102.9.103] with 32 bytes of data:

Reply from 66.102.9.103: bytes=32 time=31ms TTL=51
Reply from 66.102.9.103: bytes=32 time=28ms TTL=51
Reply from 66.102.9.103: bytes=32 time=29ms TTL=51
Reply from 66.102.9.103: bytes=32 time=30ms TTL=51
Reply from 66.102.9.103: bytes=32 time=28ms TTL=51
Reply from 66.102.9.103: bytes=32 time=34ms TTL=51
Reply from 66.102.9.103: bytes=32 time=29ms TTL=51
Reply from 66.102.9.103: bytes=32 time=32ms TTL=51
Reply from 66.102.9.103: bytes=32 time=29ms TTL=51
Reply from 66.102.9.103: bytes=32 time=31ms TTL=51
Reply from 66.102.9.103: bytes=32 time=30ms TTL=51
Reply from 66.102.9.103: bytes=32 time=28ms TTL=51
Reply from 66.102.9.103: bytes=32 time=29ms TTL=51
Reply from 66.102.9.103: bytes=32 time=29ms TTL=51
Reply from 66.102.9.103: bytes=32 time=33ms TTL=51
Reply from 66.102.9.103: bytes=32 time=30ms TTL=51
Reply from 66.102.9.103: bytes=32 time=30ms TTL=51
Reply from 66.102.9.103: bytes=32 time=35ms TTL=51
Reply from 66.102.9.103: bytes=32 time=30ms TTL=51
Reply from 66.102.9.103: bytes=32 time=30ms TTL=51
Reply from 66.102.9.103: bytes=32 time=32ms TTL=51
Reply from 66.102.9.103: bytes=32 time=28ms TTL=51
Reply from 66.102.9.103: bytes=32 time=32ms TTL=51
Reply from 66.102.9.103: bytes=32 time=32ms TTL=51

Ping statistics for 66.102.9.103:
    Packets: Sent = 24, Received = 24, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 28ms, Maximum = 35ms, Average = 30ms
Control-C
^C
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roseway

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Re: ADSL Statistics SNR Margin drpoing like a stone
« Reply #1 on: February 23, 2010, 03:20:59 PM »

Sorry if I'm being dim, but what's the query? Those look to be pretty reasonable results. The reported downstream output power is a reporting error - the connection wouldn't work with 0 dBm.
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  Eric

Oranged

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    • The Mobile Help Forum
Re: ADSL Statistics SNR Margin drpoing like a stone
« Reply #2 on: February 23, 2010, 03:59:48 PM »

modem comes back on SNR is 6.0 then starts to drop it gets to 1.6 then it goes

Over what period of time and at what time of day does the drop from 6dB to 1.6dB occur ?

Are you running Routerstats ?
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covlad1987

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  • Posts: 171
Re: ADSL Statistics SNR Margin drpoing like a stone
« Reply #3 on: February 23, 2010, 04:23:19 PM »

Sorry if I'm being dim, but what's the query? Those look to be pretty reasonable results. The reported downstream output power is a reporting error - the connection wouldn't work with 0 dBm.


what im saying the snr drops from 6db to nothing then internet goes ???? now from my pc to router is fine and from my house to the exchange is fine why would the snr drop 30 times losing internet yesterday in an hr,,,,,, even on bt i did not have this problemof the noise margin dropping more to the fact it was at 6db and it went up then back down to 6 never lower than that,,,,

talk talk ran a test over the last 24 hrs and say the lines ok ?



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jeffbb

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Re: ADSL Statistics SNR Margin drpoing like a stone
« Reply #4 on: February 23, 2010, 05:47:40 PM »

Hi
The SNR Margin is between you and the exchange , It seems there must be some noise been generated somewhere .
have you run routerstats  to monitor your line ?.
Regards Jeff
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