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FEC Errors HG612

FIXED
Community Veteran
Posts: 2,254
Thanks: 100
Fixes: 4
Registered: 18-02-2013

FEC Errors HG612

This seems like a lot of errors in just a day and a half, sunset was 18:22 and everything is quiet from Midnight on, had a Resync after about 24 days or so and about 60 ish previous to that.

fec.PNG

 

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:	1
Last initialization procedure status:	0
Max:	Upstream rate = 6274 Kbps, Downstream rate = 48136 Kbps
Bearer:	0, Upstream rate = 2000 Kbps, Downstream rate = 40000 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):	 9.8		 15.9
Attn(dB):	 24.3		 0.0
Pwr(dBm):	 11.2		 0.9
			VDSL2 framing
			Bearer 0
MSGc:		-6		118
B:		138		62
M:		1		1
T:		0		17
R:		8		16
S:		0.1101		0.9907
L:		10684		646
D:		16		1
I:		147		80
N:		147		80
Q:		16		0
V:		12		0
RxQueue:		27		0
TxQueue:		9		0
G.INP Framing:		18		0
G.INP lookback:		9		0
RRC bits:		0		24
			Bearer 1
MSGc:		90		-6
B:		0		0
M:		2		0
T:		2		0
R:		16		0
S:		10.6667		0.0000
L:		24		0
D:		1		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		586155
OHFErr:		0		7
RS:		313421232		2854508
RSCorr:		305902		18
RSUnCorr:	0		0
			Bearer 1
OHF:		7925852		0
OHFErr:		0		0
RS:		47554740		0
RSCorr:		13		0
RSUnCorr:	0		0

			Retransmit Counters
rtx_tx:		536		0
rtx_c:		11727		0
rtx_uc:		22465		0

			G.INP Counters
LEFTRS:		218		0
minEFTR:	40006		0
errFreeBits:	2670934494		0

			Bearer 0
HEC:		0		0
OCD:		0		0
LCD:		0		0
Total Cells:	1202915337		0
Data Cells:	151183972		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:		22		87
SES:		10		0
UAS:		206		196
AS:		127313

			Bearer 0
INP:		45.00		0.00
INPRein:	0.00		0.00
delay:		0		0
PER:		0.00		16.90
OR:		0.01		58.67
AgR:		40252.99	2059.15

			Bearer 1
INP:		2.50		0.00
INPRein:	2.50		0.00
delay:		0		0
PER:		16.06		0.01
OR:		47.81		0.01
AgR:		47.81	0.01

Bitswap:	80472/80472		10/10

Total time = 1 days 1 hours 53 min 47 sec
FEC:		743013		1750
CRC:		612		89
ES:		22		87
SES:		10		0
UAS:		206		196
LOS:		1		0
LOF:		5		0
LOM:		0		0
Latest 15 minutes time = 8 min 47 sec
FEC:		13		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:		12		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 = 1 hours 53 min 47 sec
FEC:		472		1
CRC:		0		1
ES:		0		1
SES:		0		0
UAS:		0		0
LOS:		0		0
LOF:		0		0
LOM:		0		0
Previous 1 day time = 24 hours 0 sec
FEC:		238853		15
CRC:		0		6
ES:		0		6
SES:		0		0
UAS:		0		0
LOS:		0		0
LOF:		0		0
LOM:		0		0
Since Link time = 1 days 11 hours 21 min 51 sec
FEC:		305902		18
CRC:		0		7
ES:		0		7
SES:		0		0
UAS:		0		0
LOS:		0		0
LOF:		0		0
LOM:		0		0
# 

2 REPLIES
Interceptor121
Aspiring Pro
Posts: 121
Thanks: 13
Fixes: 5
Registered: 12-01-2014

Re: FEC Errors HG612

Fix

Your line appears to be set very well with GINP active as well as error correction (the FEC errors you see)

You have so much headroom that DLM has activated both you are using 252 kbps for error correction and still getting 40000 sync

I would not bother as the line seems rock solid with zero ES in the last days or so

Community Veteran
Posts: 2,254
Thanks: 100
Fixes: 4
Registered: 18-02-2013

Re: FEC Errors HG612

Thanks for taking the time to point out my line is running tip-top for a long line, I was just curious as I've not seen that many errors bunched together of late that I can recall. I've read ES/CRC errors are not desirable in any type of large volume and I am far from savy with the inner workings of a DSL Modem.