FTTC Fastpath

michty_me

michty_me

michty_me

Soldato
Joined
19 Apr 2012
Posts
5,959
Can anyone assist me on understanding why I have never been on fastpath?

Here are my current stats from the HG612.

Uptime: 33 days 21 hours 16 min 57 sec
Resyncs: 0 (since 14 May 2015 10:01:46)

Downstream Upstream
Line attenuation (dB): 17.3 0.0
Signal attenuation (dB): Not monitored
Connection speed (kbps): 74000 20000
SNR margin (dB): 7.0 10.8
Power (dBm): 13.6 7.4
Interleave depth: 16 8
INP: 49.00 47.00
G.INP: Enabled

Since joining Zen nearly a year ago (At two properties, One next door to the cab) I have never been on fastpath. Always slightly interleaved but as soon as my folks join Sky fibre they go straight on fastpath and half the pings I get. I have heard that there are three settings available which are Speed, Stable and super stable. Any truth in this? Anything I can do or request?
 
The settings you refer to Speed, Stable etc are old ADSL controls over Interleave. Currently ISPs do not have any control over FTTC profiles; interleave depth, SNR, etc. This is still in the hands of Openreach's DLM system.

Might be worth asking your ISP for a DLM reset? If you're lucky they may get OR to complete this. On the flip-side, is your line stable? Do you experience any noise or static during land line calls?
 
Sparx said:
The settings you refer to Speed, Stable etc are old ADSL controls over Interleave. Currently ISPs do not have any control over FTTC profiles; interleave depth, SNR, etc. This is still in the hands of Openreach's DLM system.

Might be worth asking your ISP for a DLM reset? If you're lucky they may get OR to complete this. On the flip-side, is your line stable? Do you experience any noise or static during land line calls?
Click to expand...

Hi, Thanks for the reply. I had heard that all FTTC connections had three different profile types set elsewhere such as this thread

http://forums.thinkbroadband.com/pl...-change-fttc-dlm-settings.html?fpart=all&vc=1

and here

http://community.plus.net/forum/index.php/topic,120141.msg1041264.html#msg1041264

I've put a post up on Zens forum but may give them a call. Both my lines are stable. One with a years uptime, Full sync speeds and no issue. My current one had an issue due to using homeplugs for a few days then the ECI firmware issue. Since then it has been solid with barely any errors since February.
 
michty_me said:
Can anyone assist me on understanding why I have never been on fastpath?

Here are my current stats from the HG612.

Uptime: 33 days 21 hours 16 min 57 sec
Resyncs: 0 (since 14 May 2015 10:01:46)

Downstream Upstream
Line attenuation (dB): 17.3 0.0
Signal attenuation (dB): Not monitored
Connection speed (kbps): 74000 20000
SNR margin (dB): 7.0 10.8
Power (dBm): 13.6 7.4
Interleave depth: 16 8
INP: 49.00 47.00
G.INP: Enabled

Since joining Zen nearly a year ago (At two properties, One next door to the cab) I have never been on fastpath. Always slightly interleaved but as soon as my folks join Sky fibre they go straight on fastpath and half the pings I get. I have heard that there are three settings available which are Speed, Stable and super stable. Any truth in this? Anything I can do or request?
Click to expand...

You have G.INP enabled anyway so going fastpath will make zero difference to your ping now.

Show me full stats and I will confirm it for you.
 
It still shows an interleave depth though, as far as I'm aware it will only be fastpath / g.inp if the interleave depth is 0.

Try updating the firmware on the hg612? it'll need 030sp08 to support it properly
 
I thought G.INP would only filter noise and not increase latency? I also thought G.INP would be applied to every line anyway?

The HG612 is fully updated. I have an Asus DSL-AC68U due for delivery tomorrow.

Are these the stats you require?

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 27750 Kbps, Downstream rate = 76812 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): 7.0 10.8
Attn(dB): 17.3 0.0
Pwr(dBm): 13.6 7.4
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: 135 0
RS: 1758347728 3731
RSCorr: 1471205 56855
RSUnCorr: 0 0
Bearer 1
OHF: 183857369 28688
OHFErr: 0 0
RS: 1838573074 3872848
RSCorr: 552 431
RSUnCorr: 0 0

Retransmit Counters
rtx_tx: 217136 8843
rtx_c: 133021 10549
rtx_uc: 216 32054

G.INP Counters
LEFTRS: 4700 33
minEFTR: 73983 19997
errFreeBits: 3332563534 1079618259

Bearer 0
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 3643370686 0
Data Cells: 1882738032 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: 107 0
SES: 0 0
UAS: 28 28
AS: 2953249

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: 1779831/1779948 309/310

Total time = 1 days 4 hours 21 min 17 sec
FEC: 1471205 56855
CRC: 135 0
ES: 107 0
SES: 0 0
UAS: 28 28
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 15 minutes time = 6 min 17 sec
FEC: 58 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: 24 11
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 = 4 hours 21 min 17 sec
FEC: 602 315
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: 26683 1416
CRC: 25 0
ES: 15 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Since Link time = 34 days 4 hours 20 min 49 sec
FEC: 1471205 56855
CRC: 135 0
ES: 107 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
#
 
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