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ADSL2?? when and how??

MisterW
Superuser
Superuser
Posts: 14,773
Thanks: 5,539
Fixes: 395
Registered: ‎30-07-2007

Re: ADSL2?? when and how??

Quote
Downstream noise margin of 15db is losing you a lot of speed and is indicative of either a lot of disconnects and/or a noisy line.

Even at 15db you would expect a better synch than that though. IIRC each 3db increase in target equates to about 700k loss in synch speed ( on ADSL1 anyway , not sure about ADSL2+ ). So all things being equal
, even at 15db target you should be at about 2-3Mbps below the kitz estimate of 22Mbps. The fact that you're only synching at 10Mbps does  imply a noisy line, have you checked your internal wiring is not a problem by using the test socket.

Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.

DeathOfRtas
Grafter
Posts: 57
Registered: ‎02-11-2009

Re: ADSL2?? when and how??

Arent I synching lower because my profile has been set to 9000?
For info , Steady connection, no disconnects so far!!
MisterW
Superuser
Superuser
Posts: 14,773
Thanks: 5,539
Fixes: 395
Registered: ‎30-07-2007

Re: ADSL2?? when and how??

Quote
Arent I synching lower because my profile has been set to 9000?

No, you've got that the wrong way round , your synch speed sets the profile. The line will synch at the maximum speed it can whilst maintaining the target SNR. Normally the target SNR is set to 6db, if the line appears unstable ( or high error counts ) then the DLM will increase the target SNR ( in 3db steps ) to attempt to stabilise it. To maintain the increased target SNR the line will resynch at a lower speed. The DLM is pretty rapid at raising the target SNR but VERY tardy at reducing it when the line becomes stable ( after a fault correction say ). Your Profile follows any change in the synch speed, the BT one will reduce within minutes if the synch speed drops, but again can take days to rise if the synch speed increases. Your PlusNet
profile will track the BT one within 24hours ( usually! ).

Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.

DeathOfRtas
Grafter
Posts: 57
Registered: ‎02-11-2009

Re: ADSL2?? when and how??

Ok, so at the moment I seem to be stable and havent had any disconnects. How do i check for error count?? Ive got a netgear dg834g firmware v4.01.40
MisterW
Superuser
Superuser
Posts: 14,773
Thanks: 5,539
Fixes: 395
Registered: ‎30-07-2007

Re: ADSL2?? when and how??

I pretty sure on teh DG834G you have to Telnet to the router to get the error counts. You might be better looking at Routerstats here http://www.vwlowen.co.uk/internet/files.htm that will wok 'out of the box' with a DG834  . I think the 'summary' page from the telnet tab will give you the error counts.
 

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jelv
Seasoned Hero
Posts: 26,785
Thanks: 971
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Registered: ‎10-04-2007

Re: ADSL2?? when and how??

Quote from: MisterW
You might be better looking at Routerstats here http://www.vwlowen.co.uk/internet/files.htm

There's no might about it - for anyone with a Netgear router using RouterStats is a very smart move.
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£14.40/month)
Mobile: iD mobile (£4/month)
DeathOfRtas
Grafter
Posts: 57
Registered: ‎02-11-2009

Re: ADSL2?? when and how??

routerstats doesnt show anything in the telnet section, thing dotn work for me Sad
ignore me, im just a dumbass, will leave it running now see what happens!! Cheesy
DeathOfRtas
Grafter
Posts: 57
Registered: ‎02-11-2009

Re: ADSL2?? when and how??

Hmmm,maybe its not working, I thought I had as it was plotting a line. But summary page is blanks and all lines are tracking 0 errors!! Dont thnk its working after all Sad
MisterW
Superuser
Superuser
Posts: 14,773
Thanks: 5,539
Fixes: 395
Registered: ‎30-07-2007

Re: ADSL2?? when and how??

Sounds like its not logging in to the router correctly via Telnet. Have you double checked your userid/password and enabled the 'Telnet Netgear DG834' on the Netgear Telnet tab ?

Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.

DeathOfRtas
Grafter
Posts: 57
Registered: ‎02-11-2009

Re: ADSL2?? when and how??

Yeah I did all that. Will have a monkey with it when I get back home Sad
DeathOfRtas
Grafter
Posts: 57
Registered: ‎02-11-2009

Re: ADSL2?? when and how??

Ok, I just found out that my router may be a V3 (its a black SKy netgear router that I flashed with Netgears V3 firmware), I think I have been trying the V4 and V5 options in routerstats, I guess I will try V3 when I get home. Also I have been rebooting the router once a day as advised but then have just seen this thread http://community.plus.net/forum/index.php/topic,86638.msg717551.html#msg717551 which seems to suggest it has to see 72hrs solid connection before any increase is applied?? Now i'm confused!! lol!  Embarrassed
jelv
Seasoned Hero
Posts: 26,785
Thanks: 971
Fixes: 10
Registered: ‎10-04-2007

Re: ADSL2?? when and how??

No it's not 72 hours solid connection - it's 72 hours synced at a consistently higher speed without any sign of problems - a single daily reboot doesn't upset it.
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£14.40/month)
Mobile: iD mobile (£4/month)
DeathOfRtas
Grafter
Posts: 57
Registered: ‎02-11-2009

Re: ADSL2?? when and how??

Cool, thats good to know.
Still cant get telnet to work tho Sad ried the V3 settings, infact I have now tried them all just in case, but nothing works  Cry
DeathOfRtas
Grafter
Posts: 57
Registered: ‎02-11-2009

Re: ADSL2?? when and how??

Ok, I couldnt do it with routerstats so I just opened a telnet window and got it from there. This is what I got.

BusyBox v0.61.pre (2008.06.11-10:37+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.
# cat /proc/avalanche/avsar_modem_stats
AR7 DSL Modem Statistics:
--------------------------------
[DSL Modem Stats]
       US Connection Rate:     834     DS Connection Rate:     10754
       DS Line Attenuation:    14      DS Margin:              14
       US Line Attenuation:    6       US Margin:              11
       US Payload :            10063488        DS Payload:             46190784
       US Superframe Cnt :     1914266 DS Superframe Cnt:      1914266
       US Transmit Power :     0       DS Transmit Power:      0
       LOS errors:             0       SEF errors:             0
       Errored Seconds:        367     Severely Err Secs:      20
       Frame mode:             0       Max Frame mode:         0
       Trained Path:           1       US Peak Cell Rate:      1966
       Trained Mode:           16      Selected Mode:          1
       ATUC Vendor Code:       54535443        ATUC Revision:  3
       Hybrid Selected:        1       Trellis:                1
       Showtime Count:         1       DS Max Attainable Bit Rate: 11540 kbps
       BitSwap:                1       US Max Attainable Bit Rate: 1606114 bps
       Annex:                  AnxA    psd_mask_qualifier: 0x0000
       Power Management Status: L0     DS HLINSC: 0
       US ACTPSD:              -345    DS ACTPSD: -386
       Total init. errors:     0       Total init. timeouts: 0
       Showtime init. errors:  0       Showtime init. timeouts: 0
       Last showtime init. errors: 0   Last showtime init. timeouts: 0
       ATUC ghsVid:  b5 00 54 53 54 43 05 10
       T1413Vid: 00 00         T1413Rev: 00            VendorRev: 00
       ATUR ghsVid:  b5 00 54 53 54 43 00 00
       T1413Vid: 00 00 T1413Rev: 00    VendorRev: 00
       [Upstream (TX) Interleave path]
       CRC:    203     FEC:    3536    NCD:    0
       LCD:    0       HEC:    1007
       [Downstream (RX) Interleave path]
       CRC:    1559    FEC:    4724999 NCD:    0
       LCD:    0       HEC:    0
       [Upstream (TX) Fast path]
       CRC:    0       FEC:    0       NCD:    0
       LCD:    0       HEC:    0
       [Downstream (RX) Fast path]
       CRC:    0       FEC:    0       NCD:    0
       LCD:    0       HEC:    0
[ATM Stats]
       [Upstream/TX]
       Good Cell Cnt:  209656
       Idle Cell Cnt:  63800870
       Tx Packets Dropped Count:       0
       Tx Bad Packets Count:   9
       [Downstream/RX)]
       Good Cell Cnt:  962308
       Idle Cell Cnt:  824429098
       Bad Hec Cell Cnt:       38505
       Overflow Dropped Cell Cnt:      0
       Rx Packets Dropped Count:       0
       Rx Bad Packets Count:   0

[SAR AAL5 Stats]
       Tx PDU's:       38883
       Rx PDU's:       41411
       Tx Total Bytes: 8183093
       Rx Total Bytes: 44939869
       Tx Total Error Counts:  0
       Rx Total Error Counts:  1

[OAM Stats]
       Near End F5 Loop Back Count:    0
       Near End F4 Loop Back Count:    0
       Far End F5 Loop Back Count:     0
       Far End F4 Loop Back Count:     0
       SAR OAM Ping Response Drop Count=0
#
#
Does that make sense to anyone,lol. Cause I aint got a clue. I notice there are lots of errors on interleave which means I must have been changed because I was certainly on fastpath whne I join PN!!
DeathOfRtas
Grafter
Posts: 57
Registered: ‎02-11-2009

Re: ADSL2?? when and how??

here it is again about 8 hrs later

BusyBox v0.61.pre (2008.06.11-10:37+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.
# adslctl info --stats
adslctl: No such file or directory
#
# cat /proc/avalanche/avsar_modem_stats
AR7 DSL Modem Statistics:
--------------------------------
[DSL Modem Stats]
        US Connection Rate:    834    DS Connection Rate:    10754
        DS Line Attenuation:    14      DS Margin:              13
        US Line Attenuation:    6      US Margin:              11
        US Payload :            64255056        DS Payload:            32794324
8
        US Superframe Cnt :    3670520 DS Superframe Cnt:      3670520
        US Transmit Power :    0      DS Transmit Power:      0
        LOS errors:            0      SEF errors:            0
        Errored Seconds:        668    Severely Err Secs:      27
        Frame mode:            0      Max Frame mode:        0
        Trained Path:          1      US Peak Cell Rate:      1966
        Trained Mode:          16      Selected Mode:          1
        ATUC Vendor Code:      54535443        ATUC Revision:  3
        Hybrid Selected:        1      Trellis:                1
        Showtime Count:        1      DS Max Attainable Bit Rate: 11540 kbps
        BitSwap:                1      US Max Attainable Bit Rate: 1606114 bps
        Annex:                  AnxA    psd_mask_qualifier: 0x0000
        Power Management Status: L0    DS HLINSC: 0
        US ACTPSD:              -345    DS ACTPSD: -386
        Total init. errors:    0      Total init. timeouts: 0
        Showtime init. errors:  0      Showtime init. timeouts: 0
        Last showtime init. errors: 0  Last showtime init. timeouts: 0
        ATUC ghsVid:  b5 00 54 53 54 43 05 10
        T1413Vid: 00 00        T1413Rev: 00            VendorRev: 00
        ATUR ghsVid:  b5 00 54 53 54 43 00 00
        T1413Vid: 00 00 T1413Rev: 00    VendorRev: 00
        [Upstream (TX) Interleave path]
        CRC:    326    FEC:    7121    NCD:    0
        LCD:    0      HEC:    1706
        [Downstream (RX) Interleave path]
        CRC:    2594    FEC:    9613994 NCD:    0
        LCD:    0      HEC:    0
        [Upstream (TX) Fast path]
        CRC:    0      FEC:    0      NCD:    0
        LCD:    0      HEC:    0
        [Downstream (RX) Fast path]
        CRC:    0      FEC:    0      NCD:    0
        LCD:    0      HEC:    0
[ATM Stats]
        [Upstream/TX]
        Good Cell Cnt:  1338647
        Idle Cell Cnt:  121398693
        Tx Packets Dropped Count:      0
        Tx Bad Packets Count:  9
        [Downstream/RX)]
        Good Cell Cnt:  6832151
        Idle Cell Cnt:  1575826642
        Bad Hec Cell Cnt:      66899
        Overflow Dropped Cell Cnt:      0
        Rx Packets Dropped Count:      0
        Rx Bad Packets Count:  0

[SAR AAL5 Stats]
        Tx PDU's:      446219
        Rx PDU's:      368511
        Tx Total Bytes: 46392146
        Rx Total Bytes: 316171664
        Tx Total Error Counts:  0
        Rx Total Error Counts:  106

[OAM Stats]
        Near End F5 Loop Back Count:    0
        Near End F4 Loop Back Count:    0
        Far End F5 Loop Back Count:    0
        Far End F4 Loop Back Count:    0
        SAR OAM Ping Response Drop Count=0
#
#
lotsa high numbers, im guessing thats bad???