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[Shakermaker]

Hi

I was wondering if someone could shed any light on the attached stats?

I have noticed G.INP has been enabled but I have IMP at 28.

Will the IMP come down or stay the same?

Thanks

Sent from my Pixel 2 XL using Tapatalk

[Weaver]

Someone who knows will be able to hrl0 you out

Does this mean INP can protect an error that corrupts up to 28 consecutive symbols?

A higher figure is a very good thing, assuming that you need it, as you are getting well protected from short noise bursts / spikes. Perhaps the choice of value for it says something about eh number of spikes present, how clean your line is ? Apologies for all the question marks as my knowledge is insufficient and in any case I use the Broadcom-proprietary PhyR L2 retx protocol (on ADSL2) and PhyR is not the same thing as the standard that is G.INP.

[j0hn]

I assume you are on Sky ADSL2+ ?

I don't have any experience with G.INP on ADSL.

On VDSL2 there's always INP, usually up in the 40-50's.
My current INP=48 with G.INP enabled.

[Shakermaker]

Hi Guys,

Thanks for the replies 

Yes I am on Sky ADSL2+ and just downgraded from FTTC with BT (wont bore with the full story but had a nightmare with crosstalk and DLM intervention).

The funny thing is I was on an ECI cab with my BT FTTC and now been moved to Hauwei cab with ADSL which I just dont get?

The main reason I downgraded was because my main connection is now 4g as I took up the 3 unlimited offer for £20 per month (was getting 35meg on FTTC and getting in between 50 and 70 on 4g).

I'm just trying to get my head around the differnent cab and why I wasn't on this with FTTC as I'm sure my connection would've been miles better 

[burakkucat]

Your ADSL2+ service is via an exchange based MSAN and not a cabinet.

What you are seeing in the "Stats Summary" is just the line-card chipset . . . which happens to be a Broadcom chipset. You have tried to extrapolate the technique we use for cabinet based VDSL2 services to an exchange based ADSL2+ service and have got confused with the apparent anomaly in the result. 

Some years ago, I showed Bald_Eagle1 the following --

 > xdslctl info --vendor
xdslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:   8000
Last initialization procedure status:   0
Max:   Upstream rate = 984 Kbps, Downstream rate = 5964 Kbps
Bearer:   0, Upstream rate = 979 Kbps, Downstream rate = 5119 Kbps

ChipSet Vendor Id:   IFTN:0x71c8
ChipSet VersionNumber:   0x71c8
ChipSet SerialNumber:   
 >

and he remarked that I was connected via an ECI DSLAM. I had to correct that (incorrect) observation, as I am actually connected via an exchange based Huawei MSAN which has an Infineon line-card chipset.

[Shakermaker]

Ah ok cool thats sums it up then 

One last question though do you know if INP will come down or is that part of G.IMP being enabled?

Thanks,

[burakkucat]

I have no experience of G.Inp with an ADSL2+ service and so I am unable to offer any opinion.

[j0hn]

One last question though do you know if INP will come down or is that part of G.IMP being enabled?

It shouldn't.
It's doing no harm.

Are you able to telnet in to your device and can you post the output of
xdslcmd info --stats
Purely for my curiosity 

[Shakermaker]

It shouldn't.
It's doing no harm.

Are you able to telnet in to your device and can you post the output of
xdslcmd info --stats
Purely for my curiosity 

Here you go,

> adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    8000
Last initialization procedure status:   0
Max:    Upstream rate = 1278 Kbps, Downstream rate = 21061 Kbps
Bearer: 0, Upstream rate = 1274 Kbps, Downstream rate = 20540 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Link Power State:       L0
Mode:                   ADSL2+ Annex A
TPS-TC:                 ATM Mode(0x0)
Trellis:                U:ON /D:ON
Line Status:            No Defect
Training Status:        Showtime
                Down            Up
SNR (dB):        3.1             8.1
Attn(dB):        19.5            11.9
Pwr(dBm):        18.6            12.1

                        ADSL2 framing
                        Bearer 0
MSGc:           -6              16
B:              245             36
M:              1               1
T:              0               3
R:              6               0

S:              1.0000          1.0000
L:              4883            297
D:              1               1
Q:              2               0

V:              0               0
RxQueue:                36              0
TxQueue:                18              0
G.INP Framing:          18              0
G.INP lookback:         18              0
RRC bits:               0               0
                        Bearer 1
MSGc:           28              -6
B:              0               0
M:              16              0
T:              1               0
R:              16              0
S:              1.0000          0.0000
L:              8               0
D:              1               0
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

SF:             0               993152
SFErr:          0               0
RS:             483231074               2613018
RSCorr:         426             0
RSUnCorr:       0               0
                        Bearer 1
SF:             2933929         0
SFErr:          0               0
RS:             6234597         0
RSCorr:         1               0
RSUnCorr:       0               0

                        Retransmit Counters
rtx_tx:         667931185               0
rtx_c:          1277            0
rtx_uc:         66239           0

                        G.INP Counters
LEFTRS:         15              0
minEFTR:        20534           0
errFreeBits:    142824047               0

                        Bearer 0
HEC:            0               0
OCD:            0               0
LCD:            0               0
Total Cells:    2416100513              149789468
Data Cells:     16103704                2515503
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:             32              2
SES:            31              0
UAS:            534             503
AS:             49885

                        Bearer 0
INP:            28.00           0.00
INPRein:        0.00            0.00
delay:          0               0
PER:            0.00            16.44
OR:             0.01            10.70
AgR:            18992.76        1183.37

                        Bearer 1
INP:            8.00            0.00
INPRein:        8.00            0.00
delay:          8               0
PER:            17.00           0.01
OR:             16.00           0.01
AgR:            15.93   0.01

Bitswap:        13365/13447             1/1

Total time = 2 days 21 hours 46 min 3 sec
FEC:            23355           0
CRC:            1295            2
ES:             32              2
SES:            31              0
UAS:            534             503
LOS:            3               0
LOF:            26              0
LOM:            0               0
Latest 15 minutes time = 1 min 3 sec
FEC:            0               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:            6               0
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 = 21 hours 46 min 3 sec
FEC:            11781           0
CRC:            432             0
ES:             11              0
SES:            11              0
UAS:            71              60
LOS:            1               0
LOF:            9               0
LOM:            0               0
Previous 1 day time = 24 hours 0 sec
FEC:            10185           0
CRC:            417             0
ES:             11              0
SES:            10              0
UAS:            70              60
LOS:            1               0
LOF:            8               0
LOM:            0               0
Since Link time = 13 hours 51 min 23 sec
FEC:            426             0
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
 > 

Sent from my Pixel 2 XL using Tapatalk