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Negative Numbers in DSL Stats
- craigski
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05 Mar 2020 09:26 #1
by craigski
Negative Numbers in DSL Stats was created by craigski
2860 F/W is 3.8.9.7_BT
I'm trying to diagnose a issue with customer, who is experiencing connectivity issues. Looking at VDSL stats, there are some negative numbers, how can these be negative?
eg CRC, ES, SES, DS actual PSD, etc?
DrayTek> vds st
ATU-R Info (hw: annex A, f/w: annex A/B/C)
Running Mode : 17A State : SHOWTIME
DS Actual Rate : 79997000 bps US Actual Rate : 18999000 bps
DS Attainable Rate : 87005580 bps US Attainable Rate : 28858000 bps
DS Path Mode : Fast US Path Mode : Fast
DS Interleave Depth : 1 US Interleave Depth : 1
NE Current Attenuation : 8 dB Cur SNR Margin : 7 dB
DS actual PSD : -8.-5 dB US actual PSD : 13. 3 dB
NE CRC Count : 21 FE CRC Count : 92576
NE ES Count : 2 FE ES Count : 49544
Xdsl Reset Times : 0 Xdsl Link Times : 117
ITU Version[0] : 00000000 ITU Version[1] : 00000000
VDSL Firmware Version : 05-07-06-0D-01-07 [with Vectoring support]
Power Management Mode : DSL_G997_PMS_L0
Test Mode : DISABLE
ATU-C Info
Far Current Attenuation : 7 dB Far SNR Margin : 11 dB
CO ITU Version[0] : b5004244 CO ITU Version[1] : 434dc014
DSLAM CHIPSET VENDOR : < BDCM >
I'm trying to diagnose a issue with customer, who is experiencing connectivity issues. Looking at VDSL stats, there are some negative numbers, how can these be negative?
eg CRC, ES, SES, DS actual PSD, etc?
DrayTek> vds st
ATU-R Info (hw: annex A, f/w: annex A/B/C)
Running Mode : 17A State : SHOWTIME
DS Actual Rate : 79997000 bps US Actual Rate : 18999000 bps
DS Attainable Rate : 87005580 bps US Attainable Rate : 28858000 bps
DS Path Mode : Fast US Path Mode : Fast
DS Interleave Depth : 1 US Interleave Depth : 1
NE Current Attenuation : 8 dB Cur SNR Margin : 7 dB
DS actual PSD : -8.-5 dB
NE CRC Count : 21 FE CRC Count : 92576
NE ES Count : 2 FE ES Count : 49544
Xdsl Reset Times : 0 Xdsl Link Times : 117
ITU Version[0] : 00000000 ITU Version[1] : 00000000
VDSL Firmware Version : 05-07-06-0D-01-07 [with Vectoring support]
Power Management Mode : DSL_G997_PMS_L0
Test Mode : DISABLE
ATU-C Info
Far Current Attenuation : 7 dB Far SNR Margin : 11 dB
CO ITU Version[0] : b5004244 CO ITU Version[1] : 434dc014
DSLAM CHIPSET VENDOR : < BDCM >
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- craigski
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05 Mar 2020 09:27 #2
by craigski
Replied by craigski on topic Re: Negative Numbers in DSL Stats
DrayTek> vds st counts
ATU-R Info (hw: annex A, f/w: annex A/B/C)
[ Counters: Showtime ]
Near End Far End Note
ElapsedTime : 142321 142321 (seconds)
CRC : -76 92576
FEC : 0 9211
HEC : 0 0
CRC_P : -25 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : -94 49544
SES : -68 1071
LOSS : -3 0
UAS : 0 0
LOFS : 34 0
[ Counters: 15Min ]
Near End Far End Note
ElapsedTime : 580 580 (seconds)
CRC : -259 2
FEC : 0 1
HEC : 0 0
CRC_P : 0 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : -49 1
SES : 0 0
LOSS : 0 0
UAS : 0 0
LOFS : 0 0
[ Counters: 1DAY ]
Near End Far End Note
ElapsedTime : 78880 78880 (seconds)
CRC : -196 4616
FEC : 0 2768
HEC : 0 0
CRC_P : -26 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : -77 555
SES : -33 240
LOSS : 0 0
UAS : 0 0
LOFS : 24 0
DrayTek>
ATU-R Info (hw: annex A, f/w: annex A/B/C)
[ Counters: Showtime ]
Near End Far End Note
ElapsedTime : 142321 142321 (seconds)
CRC : -76
FEC : 0 9211
HEC : 0 0
CRC_P : -25
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : -94
SES : -68
LOSS : -3
UAS : 0 0
LOFS : 34 0
[ Counters: 15Min ]
Near End Far End Note
ElapsedTime : 580 580 (seconds)
CRC : -259
FEC : 0 1
HEC : 0 0
CRC_P : 0 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : -49 1
SES : 0 0
LOSS : 0 0
UAS : 0 0
LOFS : 0 0
[ Counters: 1DAY ]
Near End Far End Note
ElapsedTime : 78880 78880 (seconds)
CRC : -196
FEC : 0 2768
HEC : 0 0
CRC_P : -26 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : -77
SES : -33
LOSS : 0 0
UAS : 0 0
LOFS : 24 0
DrayTek>
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06 Mar 2020 09:24 #3
by admin3
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Replied by admin3 on topic Re: Negative Numbers in DSL Stats
That looks like a modem driver issue of sorts. I think it would be worth getting the "vdsl status" and "vdsl status counts" that you've already got, along with "vdsl inventory co" which might be useful to the support team. With that, you could contact them to see if they can help with sorting the compatibility issue.
I have a Vigor 2860 on 3.8.9.7 BT that's connected to ADSL and that's showing negative values for 1DAY near end CRC, FEC & ES right now, so maybe it's a problem with how the 3.8.9.7 firmware reads these values. Those values are normal some other Vigor 2860 routers on 3.8.9.7 though, so it doesn't affect all lines.
Beyond that, or if you don't want to contact support - give the 579F17 modem code a try to see if it makes a difference.
I have a Vigor 2860 on 3.8.9.7 BT that's connected to ADSL and that's showing negative values for 1DAY near end CRC, FEC & ES right now, so maybe it's a problem with how the 3.8.9.7 firmware reads these values. Those values are normal some other Vigor 2860 routers on 3.8.9.7 though, so it doesn't affect all lines.
Beyond that, or if you don't want to contact support - give the 579F17 modem code a try to see if it makes a difference.
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- craigski
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06 Mar 2020 14:16 #4
by craigski
Replied by craigski on topic Re: Negative Numbers in DSL Stats
Call opened with Draytek/Seg [#DD640809] waiting for update.
BTO Engineer has tested line, no faults found.
What is your interleave depth??
1103 seems wrong below?!?!?
DrayTek> vds st
ATU-R Info (hw: annex A, f/w: annex A/B/C)
Running Mode : 17A State : SHOWTIME
DS Actual Rate : 75743000 bps US Actual Rate : 19999000 bps
DS Attainable Rate : 87676056 bps US Attainable Rate : 28063000 bps
DS Path Mode : Interleave US Path Mode : Fast
DS Interleave Depth : 1103 US Interleave Depth : 1
NE Current Attenuation : 8 dB Cur SNR Margin : 6 dB
DS actual PSD : -8.-8 dB US actual PSD : 13. 4 dB
NE CRC Count : 0 FE CRC Count : 89795
NE ES Count : 0 FE ES Count : 50011
Xdsl Reset Times : 0 Xdsl Link Times : 40
ITU Version[0] : 00000000 ITU Version[1] : 00000000
VDSL Firmware Version : 05-07-06-0D-01-07 [with Vectoring support]
Power Management Mode : DSL_G997_PMS_L0
Test Mode : DISABLE
ATU-C Info
Far Current Attenuation : 7 dB Far SNR Margin : 11 dB
CO ITU Version[0] : b5004244 CO ITU Version[1] : 434dc014
DSLAM CHIPSET VENDOR : < BDCM >
BTO Engineer has tested line, no faults found.
What is your interleave depth??
1103 seems wrong below?!?!?
DrayTek> vds st
ATU-R Info (hw: annex A, f/w: annex A/B/C)
Running Mode : 17A State : SHOWTIME
DS Actual Rate : 75743000 bps US Actual Rate : 19999000 bps
DS Attainable Rate : 87676056 bps US Attainable Rate : 28063000 bps
DS Path Mode : Interleave US Path Mode : Fast
DS Interleave Depth : 1103 US Interleave Depth : 1
NE Current Attenuation : 8 dB Cur SNR Margin : 6 dB
DS actual PSD : -8.-8 dB US actual PSD : 13. 4 dB
NE CRC Count : 0 FE CRC Count : 89795
NE ES Count : 0 FE ES Count : 50011
Xdsl Reset Times : 0 Xdsl Link Times : 40
ITU Version[0] : 00000000 ITU Version[1] : 00000000
VDSL Firmware Version : 05-07-06-0D-01-07 [with Vectoring support]
Power Management Mode : DSL_G997_PMS_L0
Test Mode : DISABLE
ATU-C Info
Far Current Attenuation : 7 dB Far SNR Margin : 11 dB
CO ITU Version[0] : b5004244 CO ITU Version[1] : 434dc014
DSLAM CHIPSET VENDOR : < BDCM >
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06 Mar 2020 14:17 #5
by craigski
Replied by craigski on topic Re: Negative Numbers in DSL Stats
DrayTek> vds st more
ATU-R Info (hw: annex A, f/w: annex A/B/C)
Near End Far End Note
Trellis : 1 1
Bitswap : 0 1
ReTxEnable : 0 0
VirtualNoise : 0 0
20BitSupport : 0 0
LatencyPath : 0 0
LOS : 6 20
LOF : 20 0
LPR : 0 6
LOM : 0 0
SosSuccess : 0 0
NCD : 0 0
LCD : 0 0
FECS : 453 220182 (seconds)
ES : 0 50011 (seconds)
SES : 0 1251 (seconds)
LOSS : 0 0 (seconds)
UAS : 30 16414 (seconds)
HECError : 0 0
CRC : 0 89795
INP : 0 15 (symbols)
INTLVDelay : 0 800 (1/100 ms)
NFEC : 240 85
RFEC : 0 16
LSYMB : 5028 23435
INTLVBLOCK : 120 85
AELEM : 0 ----
ATU-R Info (hw: annex A, f/w: annex A/B/C)
Near End Far End Note
Trellis : 1 1
Bitswap : 0 1
ReTxEnable : 0 0
VirtualNoise : 0 0
20BitSupport : 0 0
LatencyPath : 0 0
LOS : 6 20
LOF : 20 0
LPR : 0 6
LOM : 0 0
SosSuccess : 0 0
NCD : 0 0
LCD : 0 0
FECS : 453 220182 (seconds)
ES : 0 50011 (seconds)
SES : 0 1251 (seconds)
LOSS : 0 0 (seconds)
UAS : 30 16414 (seconds)
HECError : 0 0
CRC : 0 89795
INP : 0 15 (symbols)
INTLVDelay : 0 800 (1/100 ms)
NFEC : 240 85
RFEC : 0 16
LSYMB : 5028 23435
INTLVBLOCK : 120 85
AELEM : 0 ----
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- craigski
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06 Mar 2020 14:18 #6
by craigski
Replied by craigski on topic Re: Negative Numbers in DSL Stats
DrayTek> vds st counts
ATU-R Info (hw: annex A, f/w: annex A/B/C)
[ Counters: Showtime ]
Near End Far End Note
ElapsedTime : 87249 87249 (seconds)
CRC : 110 472951
FEC : 453 252762
HEC : 0 0
CRC_P : 25827 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : -4 50011
SES : -18 1251
LOSS : -2 0
UAS : 0 0
LOFS : 9 0
[ Counters: 15Min ]
Near End Far End Note
ElapsedTime : 430 430 (seconds)
CRC : 0 0
FEC : 0 0
HEC : 0 0
CRC_P : 0 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : 0 0
SES : 0 0
LOSS : 0 0
UAS : 0 0
LOFS : 0 0
[ Counters: 1DAY ]
Near End Far End Note
ElapsedTime : 14830 14830 (seconds)
CRC : -318 186301
FEC : 453 220227
HEC : 0 0
CRC_P : 25829 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : -65 20
SES : -22 0
LOSS : 0 0
UAS : 0 0
LOFS : 0 0
DrayTek> vds inventory co
G.994 vendor ID : 0XB5004244434DC014
G.994.1 country code : 0XB500
G.994.1 provider code : BDCM
G.994.1 vendor info : 0XC014
System vendor ID : 0XB5004244434D0000
System country code : 0XB500
System provider code : BDCM
System vendor info : 0X000
Version number : v12.00.20
Version number(16 octets) : 0X7631322E30302E323020202020202000
Self-test result : PASS
Transmission mode capability : 0X00000000000000
Dray
ATU-R Info (hw: annex A, f/w: annex A/B/C)
[ Counters: Showtime ]
Near End Far End Note
ElapsedTime : 87249 87249 (seconds)
CRC : 110 472951
FEC : 453 252762
HEC : 0 0
CRC_P : 25827 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : -4 50011
SES : -18 1251
LOSS : -2 0
UAS : 0 0
LOFS : 9 0
[ Counters: 15Min ]
Near End Far End Note
ElapsedTime : 430 430 (seconds)
CRC : 0 0
FEC : 0 0
HEC : 0 0
CRC_P : 0 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : 0 0
SES : 0 0
LOSS : 0 0
UAS : 0 0
LOFS : 0 0
[ Counters: 1DAY ]
Near End Far End Note
ElapsedTime : 14830 14830 (seconds)
CRC : -318 186301
FEC : 453 220227
HEC : 0 0
CRC_P : 25829 0
CRCP_P : 0 0
CVP_P : 0 0
NCD : 0 0
LCD : 0 0
ES : -65 20
SES : -22 0
LOSS : 0 0
UAS : 0 0
LOFS : 0 0
DrayTek> vds inventory co
G.994 vendor ID : 0XB5004244434DC014
G.994.1 country code : 0XB500
G.994.1 provider code : BDCM
G.994.1 vendor info : 0XC014
System vendor ID : 0XB5004244434D0000
System country code : 0XB500
System provider code : BDCM
System vendor info : 0X000
Version number : v12.00.20
Version number(16 octets) : 0X7631322E30302E323020202020202000
Self-test result : PASS
Transmission mode capability : 0X00000000000000
Dray
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