Broadband Connection Stats

clewsyclewsy Posts: 4,222
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Hi,

I know some of you are very good at this stuff, so thought I would post and see if you could feed back on if im currently getting the max out of my broadband connection?

Im currently on o2 however will be migrated over to Sky. Should I expect similar results and speeds on Sky in peoples experience?

Many thanks for your expert feedback and stats.

Uptime: 0 days, 0:03:44
DSL Type: G.992.5 annex A
Maximum Bandwidth (Up/Down) [kbps/kbps]: 1,230 / 16,289
Bandwidth (Up/Down) [kbps/kbps]: 1,235 / 13,073
Data Transferred (Sent/Received) [kB/kB]: 0.00 / 0.00
Output Power (Up/Down) [dBm]: 12.0 / 19.0
Line Attenuation (Up/Down) [dB]: 19.5 / 33.5
SN Margin (Up/Down) [dB]: 6.0 / 6.5
Vendor ID (Local/Remote): TMMB / BDCM
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 0 / 0
FEC Errors (Up/Down): 0 / 136
CRC Errors (Up/Down): 0 / 1
HEC Errors (Up/Down): 194,573 / 1

Comments

  • LION8TIGERLION8TIGER Posts: 8,484
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    Many thanks for your expert feedback and stats.

    Sorry, can't help then :).

    But if you put your downstream attenuation (33.5) into Kitz it says your Bandwith down is spot on. Your noise margin at 6.0 and 6.5 are very good also so you have a good phone line.

    I'm with Sky and have a good connection, I see no reason why yours should not stay the same ...... I switched from TT to Sky almost 2 years ago and they start you on a slow speed, high noise margins and gradually increase your speed over/for up to 10 days but this may not apply to O2 - Sky migrations.
  • clewsyclewsy Posts: 4,222
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    Thanks for the reply. Expert enough. :)

    Should I be worried about those HEC errors?
  • EarakeEarake Posts: 1,808
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    clewsy wrote: »
    Should I be worried about those HEC errors?

    Possibly because the router re-synced at 9:30pm....after sunset is not the best time....try again between 10am and 2pm.
  • The SackThe Sack Posts: 10,334
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    6db is the target noise margin so don't expect any more speed out of your line. If you was getting your current speed but with say a 14db noise margin you would have room to spare on your line and indeed it would go faster. That said i am sure when i was on Sky their target noise margin was 7db, if this is the case you may find it a little slower but slightly more reliable.

    The higher noise margin the better.
    The lower line attenuation the better.

    Both are dependant on distance and the further away you are from the exchange in the case of ADSL the worse both will be.
  • clewsyclewsy Posts: 4,222
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    I notice if I have fibre then I can get 80mb - that said if I get 12 do I need anymore at the moment?
  • redcar1redcar1 Posts: 1,827
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    The Sack wrote: »
    6db is the target noise margin so don't expect any more speed out of your line. If you was getting your current speed but with say a 14db noise margin you would have room to spare on your line and indeed it would go faster. That said i am sure when i was on Sky their target noise margin was 7db, if this is the case you may find it a little slower but slightly more reliable.

    The higher noise margin the better.
    The lower line attenuation the better.

    Both are dependant on distance and the further away you are from the exchange in the case of ADSL the worse both will be.

    There seems to be more to it than this, though. My line attenuation downstream has always been about 42dB which (according to tbe Kitz site) corresponds to a maximum possible speed of about 8Mbps on ADSL2+. However, always with a noise margin of 6 or 7dB I've had actual speeds of anywhere from 0.8 to 7.0Mbps downstream!
    Speeds are more stable now after a longstanding line fault was fixed (which was the cause of years of very low speeds and/or intermittent service but they wouldn't fix until a total loss of broadband and phone service occurred!) But just recently the speed increased from 5.3 Mbps to 7.0Mbps again without a change in line attenuation or noise margin.
  • clewsyclewsy Posts: 4,222
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    clewsy wrote: »
    .

    Uptime: 0 days, 0:03:44
    DSL Type: G.992.5 annex A
    Maximum Bandwidth (Up/Down) [kbps/kbps]: 1,230 / 16,289
    Bandwidth (Up/Down) [kbps/kbps]: 1,235 / 13,073
    Data Transferred (Sent/Received) [kB/kB]: 0.00 / 0.00
    Output Power (Up/Down) [dBm]: 12.0 / 19.0
    Line Attenuation (Up/Down) [dB]: 19.5 / 33.5
    SN Margin (Up/Down) [dB]: 6.0 / 6.5
    Vendor ID (Local/Remote): TMMB / BDCM
    Loss of Framing (Local/Remote): 0 / 0
    Loss of Signal (Local/Remote): 0 / 0
    Loss of Power (Local/Remote): 0 / 0
    Loss of Link (Remote): 0
    Error Seconds (Local/Remote): 0 / 0
    FEC Errors (Up/Down): 0 / 136
    CRC Errors (Up/Down): 0 / 1
    HEC Errors (Up/Down): 194,573 / 1

    These are my stats now based on Sky. I can tell from speed test that its slower and looks like the SN is higher on one.

    Uptime: 0 days, 17:17:47
    DSL Type: G.992.5 annex A
    Maximum Bandwidth (Up/Down) [kbps/kbps]: 1,024 / 14,696
    Bandwidth (Up/Down) [kbps/kbps]: 858 / 12,684
    Data Transferred (Sent/Received) [kB/kB]: 0.00 / 0.00
    Output Power (Up/Down) [dBm]: 10.5 / 1.5
    Line Attenuation (Up/Down) [dB]: 18.5 / 35.5
    SN Margin (Up/Down) [dB]: 8.0 / 6.0
    Vendor ID (Local/Remote): TMMB / GSPN
    Loss of Framing (Local/Remote): 25 / 0
    Loss of Signal (Local/Remote): 3 / 0
    Loss of Power (Local/Remote): 0 / 0
    Loss of Link (Remote): 0
    Error Seconds (Local/Remote): 38 / 0
    FEC Errors (Up/Down): 960 / 77,929
    CRC Errors (Up/Down): 960 / 285
    HEC Errors (Up/Down): 7,524 / 264
  • EarakeEarake Posts: 1,808
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    Your post is timed at 19:26 and your Sky stats show an uptime of 17 hours 17 minutes which means the connection synced at around 2am which is just about the worst time for a router to sync.

    As I said earlier in this thread re-sync during daylight hours, preferably between 10am and 2pm.

    But this
    Output Power (Up/Down) [dBm]: 10.5 / 1.5
    and all the other errors might indicate a fault somewhere.
  • clewsyclewsy Posts: 4,222
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    What should I do, reset the router and see if this improves the stats?

    It says on the MySky that DLM is not in operation but if I disconnect with this cause DLM to kick in?
  • EarakeEarake Posts: 1,808
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    If DLM is off then switch the power off on the router, wait for at around 30 seconds then switch back on again but make sure you do this a couple of hours either side of 12 noon for the best result.

    DLM should not recognise the power off as a disconnection provided you wait a reasonable time before powering on again.

    But that downstream output power figure (if it's not misreported data) may indicate an exchange fault. If it is misreported then the other errors shouldn't be there so something is not right but it may be the result of re-syncing during the night.
  • clewsyclewsy Posts: 4,222
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    Thanks for that. I will try that this afternoon and see if it improves things. Just logged in and noticed the stats are a little different with a very strange power reading today.

    Uptime: 2 days, 7:18:37

    DSL Type: G.992.5 annex A

    Maximum Bandwidth (Up/Down) [kbps/kbps]: 1,024 / 14,984

    Bandwidth (Up/Down) [kbps/kbps]: 858 / 12,684

    Data Transferred (Sent/Received) [kB/kB]: 0.00 / 0.00

    Output Power (Up/Down) [dBm]: 10.5 / -25.4294967291

    Line Attenuation (Up/Down) [dB]: 18.5 / 35.5

    SN Margin (Up/Down) [dB]: 8.5 / 6.5

    Vendor ID (Local/Remote): TMMB / GSPN

    Loss of Framing (Local/Remote): 25 / 0

    Loss of Signal (Local/Remote): 3 / 0

    Loss of Power (Local/Remote): 0 / 0

    Loss of Link (Remote): 0

    Error Seconds (Local/Remote): 38 / 0

    FEC Errors (Up/Down): 963 / 217,105

    CRC Errors (Up/Down): 963 / 616

    HEC Errors (Up/Down): 7,533 / 562
  • clewsyclewsy Posts: 4,222
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    Just followed your instructions to resync at this time of day and this is now what is being reported.

    Still have this strange figure for the power output so would in your experience think this points to an exchange fault?

    Link Information

    Uptime: 0 days, 0:03:13

    DSL Type: G.992.5 annex A

    Maximum Bandwidth (Up/Down) [kbps/kbps]: 1,032 / 14,948

    Bandwidth (Up/Down) [kbps/kbps]: 870 / 12,832

    Data Transferred (Sent/Received) [kB/kB]: 0.00 / 0.00

    Output Power (Up/Down) [dBm]: 10.5 / -25.4294967291

    Line Attenuation (Up/Down) [dB]: 18.5 / 35.5

    SN Margin (Up/Down) [dB]: 8.0 / 6.5

    Vendor ID (Local/Remote): TMMB / GSPN

    Loss of Framing (Local/Remote): 0 / 0

    Loss of Signal (Local/Remote): 0 / 0

    Loss of Power (Local/Remote): 0 / 0

    Loss of Link (Remote): 0

    Error Seconds (Local/Remote): 0 / 0

    FEC Errors (Up/Down): 0 / 149

    CRC Errors (Up/Down): 0 / 0

    HEC Errors (Up/Down): 0 / 0
  • EarakeEarake Posts: 1,808
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    Keep an eye on the stats, the connection is solid....or had been for over 2 days until you re-synced so it may be a glitch in the router causing false reporting.

    If the Error Seconds/Loss of Framing/Los of Signal errors build up then there may be a line fault somewhere.

    But if the connection is stable I wouldn't worry about it.
  • LION8TIGERLION8TIGER Posts: 8,484
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    The Sack wrote: »
    6db is the target noise margin so don't expect any more speed out of your line. If you was getting your current speed but with say a 14db noise margin you would have room to spare on your line and indeed it would go faster. That said i am sure when i was on Sky their target noise margin was 7db, if this is the case you may find it a little slower but slightly more reliable.

    The higher noise margin the better.
    The lower line attenuation the better.

    Both are dependant on distance and the further away you are from the exchange in the case of ADSL the worse both will be.

    I always thought the opposite, higher noise margin = slower speed.
  • EarakeEarake Posts: 1,808
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    LION8TIGER wrote: »
    I always thought the opposite, higher noise margin = slower speed.

    Correct but I think for the old BT ADSLMax 8Mb it was correct....beerhunter2 might be able to confirm that.....time flies doesn't it ?
  • clewsyclewsy Posts: 4,222
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    This is tonight's Sky BB reading.

    Link Information

    Uptime: 1 day, 10:50:24

    DSL Type: G.992.5 annex A

    Maximum Bandwidth (Up/Down) [kbps/kbps]: 1,032 / 14,696

    Bandwidth (Up/Down) [kbps/kbps]: 870 / 12,832

    Data Transferred (Sent/Received) [kB/kB]: 0.00 / 0.00

    Output Power (Up/Down) [dBm]: 10.5 / 1.5

    Line Attenuation (Up/Down) [dB]: 18.5 / 35.5

    SN Margin (Up/Down) [dB]: 8.0 / 6.0

    Vendor ID (Local/Remote): TMMB / GSPN

    Loss of Framing (Local/Remote): 0 / 0

    Loss of Signal (Local/Remote): 0 / 0

    Loss of Power (Local/Remote): 0 / 0

    Loss of Link (Remote): 0

    Error Seconds (Local/Remote): 1 / 0

    FEC Errors (Up/Down): 4 / 176,593

    CRC Errors (Up/Down): 4 / 393

    HEC Errors (Up/Down): 2 / 333
  • EarakeEarake Posts: 1,808
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    That is a stable connection....ignore the Output Power data, I think the router must be mis-reporting it.
  • clewsyclewsy Posts: 4,222
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    OK thanks for the feedback. I don't seem to get the 12meg - speed test says 5-7 so something seems wrong.

    Mind you seems to route me to some strange places.
  • EarakeEarake Posts: 1,808
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    Which speed test ?

    I always use the TBB one rather than speedtest.net which I find quite erratic. I also find the BBC iPlayer Diagnostic test erratic so there seems to be something on my computer which those 2 sites don't like.

    Anti-virus software has been known to affect the results from speed test sites.

    Also differences can be experienced using wireless and ethernet.

    So.....many variables can affect returns from speed tests.
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