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[boost]

One of my scribblings shows the following:

xdslcmd configure --trellis on --bitswap on --sesdrop on --sra on --phyReXmt 0x3 --i24k on --maxDataRate 40000 20000 60000

xdslcmd configure1 --maxDataRate 40960 20480 61440


Your HG needs to be running the latest firmware before the maxdatarate syntax becomes valid.

--maxDataRate <desired downstream synch> <desired upstream synch> <the total of the former two>

[michty_me]

Hmm. Looks a bit out of my depth. I've been in touch with Zen and this is the response I got from them:

I have checked the profile for this circuit and "fastpath" is not enabled. Fast path is another term for interleaving which is applied if a line starts to error. However on FTTC lines it can never be turned totally off by advising the stability option. the Dynamic Line Management will always have the option to enable interleaving if its required.

Currently this circuit is not running with any profile restrictions, it has also been stable so would not expect it to be enabled unless it gets into trouble

[burakkucat]

Fast path is another term for interleaving which is applied if a line starts to error.

The above line is utter hog-wash! 

Are you absolutely sure that is what was typed? Could some words have been inadvertently omitted? 

[kitz]

Fast path is another term for interleaving which is applied if a line starts to error.

Oh dear.   

I have checked the profile for this circuit and "fastpath" is not enabled.

Fast path is never mentioned in the FTTC profile anyhow.  It should either say something like Error Protection or Interleaving.
Since he claims to have looked at your profile may be an idea if you could ask what that is, as we may be able to interpret.   

[michty_me]

Hi there, sorry for the delay.
I'm half way around the world at the moment so totally back to front with UK time.

I just copied and pasted their response from the email I received but deleted my name. When I read it, it made no sense to me. I did respond but have not heard back from them at all.
I'll maybe get a ticket raised. He said I had no DLM restrictions but I have a feeling I'm banded. Looking at my stats it shows Max attainable as approx 80,500 but my actual sync speed is 74,002. Basically bang on. Maybe that is right but just looks strange to me.

[kitz]

Looking at my stats it shows Max attainable as approx 80,500 but my actual sync speed is 74,002. Basically bang on. Maybe that is right but just looks strange to me.

If the line is interleaved, then the max attainable does go a bit skewy and show a higher figure than what would be obtainable if the line wasnt interleaved.

We dont know exactly why this would be, but my guess is something to do with RS overheads.   In other words if the line is interleaved and has Error Correction applied, then sync connection speed has to be  lowered because of the redundancy overheads.

[michty_me]

Well that makes a lot of sense. Thanks for explaining!
It is certainly interleaved. G.inp was also applied at the end of march.
I can post a full stats when I get to my work computer but it seems interleaved is set at 16 down and 8 up. g.inp shows 49 down and 47 up I believe. I'm not too worried about getting fastpath, just interested on how it works.
I guess as g.inp remains in place, there must be some sort of noise on the line.

[michty_me]

Ok, Here is a full list of stats I pulled from a Netgear D6400 when I had it connected for 8 days. I'm back on the HG612 now though.

Code: [Select]

DSLAM/MSAN type:        BDCM:0xa485 / v0xa485
Modem/router firmware:  AnnexA version - A2pv6F039j.d25d
DSL mode:                VDSL2 Profile 17a
Status:                  Showtime
Uptime:                 
Resyncs:                0 (since 31 May 2015 12:58:02)

Downstream Upstream
Line attenuation (dB):  17.5 0.0
Signal attenuation (dB): Not monitored
Connection speed (kbps): 74000 20000
SNR margin (dB):        7.5 9.7
Power (dBm):            13.6 7.5
Interleave depth:        16 8
INP:                    49.00 47.00
G.INP:                  Enabled

RSCorr/RS (%):          0.0221 7.0520
RSUnCorr/RS (%):        0.0000 0.0000
ES/hour:                0 0




adslctl info --stats
adslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 26040 Kbps, Downstream rate = 80441 Kbps
Bearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 74000 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Link Power State:       L0
Mode:                   VDSL2 Annex B
VDSL2 Profile:          Profile 17a
TPS-TC:                 PTM Mode(0x0)
Trellis:                U:ON /D:ON
Line Status:            No Defect
Training Status:        Showtime
                Down            Up
SNR (dB):        7.5             9.7
Attn(dB):        17.5            0.0
Pwr(dBm):        13.6            7.5

                        VDSL2 framing
                        Bearer 0
MSGc:           -6              -6
B:              174             97
M:              1               1
T:              0               0
R:              8               8
S:              0.0752          0.1554
L:              19456           5457
D:              16              8
I:              183             106
N:              183             106
Q:              16              8
V:              3               2
RxQueue:                42              39
TxQueue:                14              13
G.INP Framing:          18              18
G.INP lookback:         14              13
RRC bits:               24              24
                        Bearer 1
MSGc:           154             58
B:              0               0
M:              2               2
T:              2               2
R:              16              16
S:              6.4000          16.0000
L:              40              16
D:              3               1
I:              32              32
N:              32              32
Q:              0               0
V:              0               0
RxQueue:                0               0
TxQueue:                0               0
G.INP Framing:          0               0
G.INP lookback:         0               0
RRC bits:               0               0

                        Counters
                        Bearer 0
OHF:            0               0
OHFErr:         2               13
RS:             2515510368              2428593
RSCorr:         554115          61355
RSUnCorr:       0               0
                        Bearer 1
OHF:            43355392                533362
OHFErr:         0               0
RS:             433553307               2301221
RSCorr:         2129            299
RSUnCorr:       0               0

                        Retransmit Counters
rtx_tx:         388043          5110
rtx_c:          19178           17972
rtx_uc:         2               73044

                        G.INP Counters
LEFTRS:         456             84
minEFTR:        74006           19997
errFreeBits:    785859680               1521542996

                        Bearer 0
HEC:            0               0
OCD:            0               0
LCD:            0               0
Total Cells:    317187817               0
Data Cells:     325251717               0
Drop Cells:     0
Bit Errors:     0               0

                        Bearer 1
HEC:            0               0
OCD:            0               0
LCD:            0               0
Total Cells:    0               0
Data Cells:     0               0
Drop Cells:     0
Bit Errors:     0               0

ES:             2               3
SES:            0               0
UAS:            31              31
AS:             696400

                        Bearer 0
INP:            49.00           47.00
INPRein:        0.00            0.00
delay:          0               0
PER:            0.00            0.00
OR:             0.01            0.01
AgR:            74132.27        20102.08

                        Bearer 1
INP:            4.50            4.00
INPRein:        4.50            4.00
delay:          3               0
PER:            16.06           16.06
OR:             79.68           31.87
AgR:            79.68   31.87

Bitswap:        85324/85329             9058/9063

Total time = 8 days 1 hours 27 min 11 sec
FEC:            554115          61355
CRC:            2               13
ES:             2               3
SES:            0               0
UAS:            31              31
LOS:            0               0
LOF:            0               0
LOM:            0               0
Latest 15 minutes time = 12 min 11 sec
FEC:            65              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:            84              16
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 = 1 hours 27 min 11 sec
FEC:            1515            92
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Previous 1 day time = 24 hours 0 sec
FEC:            62119           2103
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Since Link time = 8 days 1 hours 26 min 39 sec
FEC:            554115          61355
CRC:            2               13
ES:             2               3
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
NTR: mipsCntAtNtr=0 ncoCntAtNtr=0
#

[Azzaka]

Mitchy_me can you please PM me the ref and name from the Zen Rep please.

The information is incorrect and I want to make sure this is put straight.

Kindest Regards,

[michty_me]

Mitchy_me can you please PM me the ref and name from the Zen Rep please.

The information is incorrect and I want to make sure this is put straight.

Kindest Regards,

Azzaka,

I've sent you my correspondence with the Zen team member via PM. I've also attached my initial question so you can see what I have asked prior to what I was told. Thanks.

[michty_me]

Not too sure if this makes a difference but the InpREIN on the bearer 0 and bearer 1 are very different.

                      Bearer 0
INP:            49.00           47.00
INPRein:        0.00            0.00
delay:          0               0
PER:            0.00            0.00
OR:             0.01            0.01
AgR:            74132.27        20102.08

                        Bearer 1
INP:            4.50            4.00
INPRein:        4.50            4.00
delay:          3               0
PER:            16.06           16.06
OR:             79.68           31.87
AgR:            79.68   31.87

Here is a trace route to BBC. I live in NE Scotland.

Tracing route to bbc.co.uk [212.58.246.104]
over a maximum of 30 hops:

  1    <1 ms    <1 ms    <1 ms  router.asus.com [192.168.1.1]
  2    19 ms    18 ms    18 ms  losubs.subs.dsl2.wh-man.zen.net.uk [62.3.87.147]

  3    19 ms    19 ms    18 ms  ae1-114.cr1.wh-man.zen.net.uk [62.3.87.169]
  4    25 ms    42 ms    32 ms  ge-3-0-0-0.cr2.th-lon.zen.net.uk [62.3.80.45]
  5    25 ms    25 ms    25 ms  ge-2-0-0-0.cr1.th-lon.zen.net.uk [62.3.80.41]
  6    27 ms    26 ms    25 ms  82.71.254.134
  7     *        *        *     Request timed out.
  8    27 ms    26 ms    26 ms  ae0.er01.cwwtf.bbc.co.uk [132.185.254.93]
  9    27 ms    26 ms    27 ms  132.185.255.165
 10    26 ms    26 ms    26 ms  fmt-vip133.cwwtf.bbc.co.uk [212.58.246.104]

Trace complete.

[Azzaka]

Thanks Mitchy.

I know the person in question and will make sure the correct information is given in the future. If you have any further issues please PM directly and I will do what I can to help. If I am not around, let Kitz know and she will contact me.

All the best,

Azz

[michty_me]

Thanks Mitchy.

I know the person in question and will make sure the correct information is given in the future. If you have any further issues please PM directly and I will do what I can to help. If I am not around, let Kitz know and she will contact me.

All the best,

Azz

Hi Azz,

Thank you very much. Very kind of you. I'll maybe PM you one little question.

[boost]

Mitchy_me can you please PM me the ref and name from the Zen Rep please.

The information is incorrect and I want to make sure this is put straight.

Kindest Regards,

*checks how much Zen Internets is per month*

[michty_me]

Huh?