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[burakkucat]

Heres a screenshot I took, does that look ok?
http://postimg.org/image/wuywpq6a1/

I also think that it is possible to request a non interleaving profile which I believe will decrease latency, now that I have much better line statistics, should I do that?

Who is your CP/ISP? I do not know of any provider, other than TalkTalk, who provisions FTTC with the minimum (cheapest) offering from Openreach. 

Openreach sell three variants of the GEA FTTC product to CP/ISPs --

• 40/2 DS/US
• 40/10 DS/US
• 80/20 DS/US

Likewise, there are three profiles that a CP/ISP can request for which ever product they have purchased. I can't put my paws on the details, at present, but I know that Kitz has made reference to those profiles in a few of her more recent threads. (Perhaps someone else could provide a link, please?)

I can say, quite definitely, that it is not possible -- either by the EU (end user) or the CP/ISP -- to request that interleaving be turned off for a particular VDSL2 circuit. Interleaving (whether it is on or off for a circuit) is under the sole control of the Openreach DLM. If the DLM decrees that your circuit should be interleaved, then interleaved it will be! 

[bilbokitz]

Its me in the IoM again. 40/2 is the max island wide at present. Re interleaving, it definitely can be requested  maybe only adsl.

Actually it does say ultima, and that is vdsl here. I am with sure isp, but manxtelecom own the copper and thers no llu, it was bt who set mt up I believe.

http://www.manxtelecom.com/internet/broadband/online-gaming.aspx

[Bald_Eagle1]

The results from http://speedtest.btwholesale.com/ should confirm the IP Profiles for the connection.

The fact that DS sync speed is in excess of 40 Mbps & US is in excess of 2 Mbps suggests 80/20, but I have seen occasions of mis-match where users have an unusual & incorrect IP Profiles of 80/10.

Plusnet (as one example) use different names for the 3 profiles that BT, which is slightly surprising as they are part of the BT group.

The 3 profiles are named something like Fast, Standard, Stable or Standard, Stable, Super Stable.

[Bald_Eagle1]

Its me in the IoM again. 40/2 is the max island wide at present. Re interleaving, it definitely can be requested  maybe only adsl.

Hmmm. It could be that throughput speeds are restricted to 40/2 in the IoM, despite the connection actually being in sync at higher speeds than those?

[burakkucat]

Manx Telecom is not Beattie.    Therefore everything I have previously typed in this thread may not be applicable for your circuit. 

The only thing I know, for sure, about the IoM is that there is a certain breed of kitteh which does not have a tail! 

[bilbokitz]

  Indeed, but you don't see too see too many of them around any more.

I'll run the below when I get in. Can this definitely only be run by connecting via lan 2? Or can rules be set up for it to work on lan1 as the modem is in the garage away from any computers with just the one ethernet cable connecting it to my router in the kitchen.

xdslcmd info --stats
xdslcmd info pbParams

[burakkucat]

The two command lines --

xdslcmd info --stats
xdslcmd info --pbParams

-- are only understood by the HG612 modem itself.

The LAN1 port is just a bridge to the WAN port, whereas the LAN2 port allows access to the HG612 device internals.

So, in answer to your question, yes the connection must be made via the LAN2 port.

[bilbokitz]

Please see stats below, are those fec and crc figures a bit high??

Code: [Select]

# xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 2
Max:    Upstream rate = 8794 Kbps, Downstream rate = 74576 Kbps
Path:   0, Upstream rate = 2495 Kbps, Downstream rate = 52999 Kbps

Link Power State:       L0
Mode:                   VDSL2 Annex B
VDSL2 Profile:          Profile 8a
TPS-TC:                 PTM Mode
Trellis:                U:ON /D:ON
Line Status:            No Defect
Training Status:        Showtime
                Down            Up
SNR (dB):        13.4            19.2
Attn(dB):        0.0             0.0
Pwr(dBm):        10.0           -25.2
                        VDSL2 framing
                        Path 0
B:              79              31
M:              1               1
T:              55              44
R:              16              10
S:              0.0480          0.3995
L:              15991           841
D:              667             43
I:              96              42
N:              96              42
                        Counters
                        Path 0
OHF:            48223265                911969
OHFErr:         76              2
RS:             3661789260              2368443
RSCorr:         136752          159
RSUnCorr:       3021            0

                        Path 0
HEC:            915             0
OCD:            32              0
LCD:            32              0
Total Cells:    1179386652              0
Data Cells:     48940309                0
Drop Cells:     0
Bit Errors:     0               0

ES:             26              2
SES:            5               0
UAS:            972             972
AS:             95910

                        Path 0
INP:            2.50            2.00
PER:            1.98            13.18
delay:          8.00            4.00
OR:             96.91           58.25

Bitswap:        1029            74

Total time = 1 days 3 hours 21 min 3 sec
FEC:            136808          159
CRC:            2485            2
ES:             26              2
SES:            5               0
UAS:            972             972
LOS:            5               0
LOF:            5               0
Latest 15 minutes time = 6 min 3 sec
FEC:            646             0
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
Previous 15 minutes time = 15 min 0 sec
FEC:            1072            0
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
Latest 1 day time = 3 hours 21 min 3 sec
FEC:            23528           22
CRC:            14              1
ES:             4               1
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
Previous 1 day time = 24 hours 0 sec
FEC:            113280          137
CRC:            2471            1
ES:             22              1
SES:            5               0
UAS:            972             972
LOS:            5               0
LOF:            5               0
Since Link time = 1 days 2 hours 38 min 29 sec
FEC:            136752          159
CRC:            76              2
ES:             21              2
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0



# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 2
Max:    Upstream rate = 8801 Kbps, Downstream rate = 74448 Kbps
Path:   0, Upstream rate = 2495 Kbps, Downstream rate = 52999 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (868,1207)
DS: (32,859) (1216,1963)
Medley Phase (Final) Band Plan
US: (0,95) (868,1207)
DS: (32,859) (1216,1963)
       VDSL Port Details       Upstream        Downstream
Attainable Net Data Rate:       8801 kbps         74448 kbps
Actual Aggregate Tx Power:    -  25.2 dBm          10.0 dBm
============================================================================
  VDSL Band Status        U0      U1      U2      U3      D1      D2      D3
  Line Attenuation(dB):  3.9     17.9     N/A     N/A    9.7     22.0     N/A
Signal Attenuation(dB):  3.9     16.9     N/A     N/A    9.7     22.0     N/A
        SNR Margin(dB):  19.4    19.2     N/A     N/A    13.5    13.3     N/A
         TX Power(dBm): -43.2   -25.3     N/A     N/A    8.3     5.1      N/A

#
# xdslcmd info --vendor
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 2
Max:    Upstream rate = 8797 Kbps, Downstream rate = 74576 Kbps
Path:   0, Upstream rate = 2495 Kbps, Downstream rate = 52999 Kbps

ChipSet Vendor Id:      BDCM:0xa3d1
ChipSet VersionNumber:  0xa3d1
ChipSet SerialNumber:





[Bald_Eagle1]

Hi bilbokitz,

I have sent you a PM.

Are you able to access the Manx equivalent of http://speedtest.btwholesale.com/ & post the details?

[bilbokitz]

Thank you I have sent a reply. I don't think we have the equivalent to that, there are local speedtests which pretty much show the same as this thinkbroadband one:


There is a line test which tells tests your line and tells you your max speed, I think its checks noise and line length etc and that gives me tha max available at present on the Island 38 to 40 down and 2 up.

It looks to me as though from the stats that the equipment here is capable of more but the local telecoms company is holding back for now?

[Bald_Eagle1]

It looks to me as though from the stats that the equipment here is capable of more but the local telecoms company is holding back for now?

It does indeed appear that way, although there does seem to be some sort of US issue.
It's not really a big deal whilst your connection's throughput speed is capped, but it could become an issue if throughput speeds were ever to be 'uncapped'.

[bilbokitz]

I couldn't quite get the stat program workig last night, I'll have another go later. But today at work where we have vdsl connected direct to the exchange but may three times the distance using a netgear dgnd3700 I have grabbed the line stats for comparison. Is the interleaving level lower?

Code: [Select]

~ # adslctl info --stats
adslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    2
Last initialization procedure status:   0
Max:    Upstream rate = 1251 Kbps, Downstream rate = 35108 Kbps
Bearer: 0, Upstream rate = 1336 Kbps, Downstream rate = 34097 Kbps

Link Power State:       L0
Mode:                   VDSL2 Annex B
VDSL2 Profile:          Profile 8a
TPS-TC:                 PTM Mode
Trellis:                U:ON /D:ON
Line Status:            No Defect
Training Status:        Showtime
                Down            Up
SNR (dB):        6.1             5.7
Attn(dB):        0.0             0.0
Pwr(dBm):        17.4            0.1

                        VDSL2 framing
                        Bearer 0
MSGc:           13              25
B:              175             125
M:              1               1
T:              64              14
R:              14              16
S:              0.1643          3.0000
L:              9254            384
D:              333             25
I:              190             72
N:              190             144

                        Counters
                        Bearer 0
OHF:            286949412               200632
OHFErr:         2255            10
RS:             1184869873              4167105
RSCorr:         5471834         5150
RSUnCorr:       27982           0

                        Bearer 0
HEC:            7238            0
OCD:            360             0
LCD:            360             0
Total Cells:    2303321045              0
Data Cells:     45239191                0
Drop Cells:     0
Bit Errors:     0               0

ES:             1637            8
SES:            16              0
UAS:            572             572
AS:             757081

                        Bearer 0
INP:            2.00            2.00
INPRein:        0.00            0.00
delay:          14              9
PER:            2.62            10.50
OR:             57.83           23.61

Bitswap:        0/128759                0/68708

Total time = 1 days 20 hours 36 min 47 sec
FEC:            9553056         17488
CRC:            13087           15
ES:             1637            8
SES:            16              0
UAS:            572             572
LOS:            15              0
LOF:            15              0
LOM:            0               0
Latest 15 minutes time = 6 min 47 sec
FEC:            2317            0
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Previous 15 minutes time = 15 min 0 sec
FEC:            5052            13
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Latest 1 day time = 20 hours 36 min 47 sec
FEC:            606562          515
CRC:            165             8
ES:             52              2
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Previous 1 day time = 24 hours 0 sec
FEC:            1100865         656
CRC:            471             0
ES:             131             0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Since Link time = 8 days 18 hours 18 min 1 sec
FEC:            5471834         5150
CRC:            2255            10
ES:             546             4
SES:            0               0
UAS:            0               0
LOS:            0               0


# adslctl info --pbParams
adslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    2
Last initialization procedure status:   0
Max:    Upstream rate = 1248 Kbps, Downstream rate = 35108 Kbps
Bearer: 0, Upstream rate = 1336 Kbps, Downstream rate = 34097 Kbps

Discovery Phase (Initial) Band Plan
US: (7,32) (871,1205)
DS: (33,859) (1216,1961)
Medley Phase (Final) Band Plan
US: (7,32) (871,1184)
DS: (33,859) (1216,1569)
       VDSL Port Details       Upstream        Downstream
Attainable Net Data Rate:       1248 kbps         35108 kbps
Actual Aggregate Tx Power:        0.1 dBm          17.4 dBm
============================================================================
  VDSL Band Status        U0      U1      U2      U3      D1      D2      D3
  Line Attenuation(dB):  10.9    56.2     N/A     N/A    24.0    68.7     N/A
Signal Attenuation(dB):  8.8     55.6     N/A     N/A    24.0    68.7     N/A
        SNR Margin(dB):  5.7     5.7      N/A     N/A    6.1     5.9      N/A
         TX Power(dBm): -9.4    -0.4      N/A     N/A    17.3    1.1      N/A






[Bald_Eagle1]

Yes. The interleaving depth at work is lower:-

D:              333             25


Compared to your home connection:-

D:              667             43


I have only just noticed that the VDSL2 profile in use in IoM is different to the UK's.

IoM:-
Mode:                   VDSL2 Annex B
VDSL2 Profile:          Profile 8a


UK:-
Mode:                   VDSL2 Annex B
VDSL2 Profile:          Profile 8c

Mode:                   VDSL2 Annex B
VDSL2 Profile:          Profile 17a


That could also explain the unusual raw stats that we are seeing from your connection.



My programs were written to use Profiles 8c & 17a.
I guess that's why you are unable to obtain the stats.

I'll add in compatibility for Profile 8a, but it might take me a little while.

[bilbokitz]

Thank you, but please dont go out of your way to do it if its s lot of work !

[Bald_Eagle1]

I'd like to make it work for the 8a profile, now that I know it's used in IoM.

Assuming you had successfully created the task & turned logging on via the GUI, did you get anything at all in the Current_Stats & Ongoing_Stats folders?

e.g. Plink_201402xx-xxxx.log