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80Mbit/s sync

dragon2611
Grafter
Posts: 283
Registered: 20-10-2013

80Mbit/s sync

Seems DLM is playing with my connection again, went from 71Mbit/s > 80Mbit/s and latency reduced.
However I do wonder if openreach implemented new profiles as I've never seen a modem report 80Mbit/s sync on FTTC before(Downstream rate = 80000 Kbps) it's always been 79,999 in the past.
# xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 1
Last initialization procedure status: 0
Max: Upstream rate = 26077 Kbps, Downstream rate = 81152 Kbps
Bearer: 0, Upstream rate = 19999 Kbps, Downstream rate = 80000 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): 6.4 15.4
Attn(dB): 14.6 0.0
Pwr(dBm): 12.8 6.8
VDSL2 framing
Bearer 0
MSGc: -6 26
B: 203 237
M: 1 1
T: 0 42
R: 10 16
S: 0.0809 0.3781
L: 21153 5374
D: 8 1
I: 214 127
N: 214 254
Q: 8 0
V: 5 0
RxQueue: 78 0
TxQueue: 26 0
G.INP Framing: 18 0
G.INP lookback: 26 0
RRC bits: 0 24
Bearer 1
MSGc: 186 -6
B: 0 0
M: 2 0
T: 2 0
R: 16 0
S: 5.3333 0.0000
L: 48 0
D: 3 0
I: 32 0
N: 32 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
OHF: 0 2206993
OHFErr: 0 0
RS: 431161512 2458441
RSCorr: 1074 14
RSUnCorr: 0 0
Bearer 1
OHF: 545307 0
OHFErr: 0 0
RS: 6542942 0
RSCorr: 0 0
RSUnCorr: 0 0
Retransmit Counters
rtx_tx: 95 0
rtx_c: 95 0
rtx_uc: 0 0
G.INP Counters
LEFTRS: 2 0
minEFTR: 80009 0
errFreeBits: 10685965 0
Bearer 0
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 1347490772 0
Data Cells: 5947884 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: 2373 812
SES: 34 0
UAS: 136 105
AS: 8760
Bearer 0
INP: 49.00 0.00
INPRein: 0.00 0.00
delay: 0 0
PER: 0.00 3.98
OR: 0.01 64.22
AgR: 80344.32 20063.54
Bearer 1
INP: 4.00 0.00
INPRein: 4.00 0.00
delay: 3 0
PER: 16.06 0.01
OR: 95.62 0.01
AgR: 95.62 0.01
Bitswap: 1595/1595 0/0
Total time = 1 days 19 hours 31 min 8 sec
FEC: 5400412 24768
CRC: 12835 879
ES: 2373 812
SES: 34 0
UAS: 136 105
LOS: 3 0
LOF: 28 0
LOM: 0 0
Latest 15 minutes time = 1 min 8 sec
FEC: 106 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: 192 5
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 = 19 hours 31 min 8 sec
FEC: 31315 97
CRC: 6148 6
ES: 10 6
SES: 10 0
UAS: 36 26
LOS: 1 0
LOF: 9 0
LOM: 0 0
Previous 1 day time = 24 hours 0 sec
FEC: 83828 150
CRC: 0 20
ES: 0 18
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Since Link time = 2 hours 25 min 59 sec
FEC: 1074 14
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
#
8 REPLIES
Estragon
Rising Star
Posts: 811
Thanks: 10
Registered: 07-02-2012

Re: 80Mbit/s sync

You now have G.INP active. I expect before this you didn't.
That will have removed interleaving that you appear to have had. The interleaving would have added at least 8ms to your latency.
deadman2020
Grafter
Posts: 59
Registered: 24-06-2013

Re: 80Mbit/s sync

I thought we could only connect at 75mbit max on plusnet?
KevinG
Rising Star
Posts: 987
Thanks: 9
Fixes: 1
Registered: 05-11-2008

Re: 80Mbit/s sync

Whoever said that? The maximum possible sync is 80000, Plusnet cannot change that. The maximum possible download speed (IP profile) is 77.4Mbps. In practice this translates to around 75Mbps or just over in the real world.
deathtrap
Grafter
Posts: 1,063
Thanks: 4
Registered: 23-04-2013

Re: 80Mbit/s sync

Quote from: KevinG
The maximum possible download speed (IP profile) is 77.44Mbps. In practice this translates to around 75Mbps or just over in the real world.
or it would if it wasn't for Plusnet's secondary IP profile and their traffic management  both do have an adverse affect on max throughput rate, for some more than others  the EU's hardware can also play some part in that also, my max throughput used to be as low as 73.40mbps  when secondary profile set to 77.4mbps, 74.00mbps when set to 78mbps now I'm with an isp that doesn't traffic shape/prioritise ect my throughput is 75.20mbps
[Moderator's note by Dick(Strat) Corruption of company name corrected.
KevinG
Rising Star
Posts: 987
Thanks: 9
Fixes: 1
Registered: 05-11-2008

Re: 80Mbit/s sync

And I'm sure the difference between 74Mbps and 75Mbps has transformed your life. Smiley
deathtrap
Grafter
Posts: 1,063
Thanks: 4
Registered: 23-04-2013

Re: 80Mbit/s sync

Just pointing out that their meddling with traffic was limiting my throughput that's all, or don't you think others deserve to know this? also the difference was greater than 1mbps when secondary profile was set to the normal value of 77.4 or 77.3 when G.inp applied as BTW IP profile is 77.35mbps max then
KevinG
Rising Star
Posts: 987
Thanks: 9
Fixes: 1
Registered: 05-11-2008

Re: 80Mbit/s sync

I have seen it suggested many times and I think it's inconclusive.
deathtrap
Grafter
Posts: 1,063
Thanks: 4
Registered: 23-04-2013

Re: 80Mbit/s sync

Quote from: KevinG
I think it's inconclusive.
Well i think /know that it is not inconclusive i was a customer for 2yrs