RT-AC86U 384.16 Hi, I updated to the latest Merlin firmware this morning (about 9 am) and since doing so my NE CRC count has gone up to 326598 over 5 hours. ...

[Bully]

To be fair my Draytek has been solid now for some months.  I found a forum stating that the Draytek has vectoring enabled and can cause an unstable line, I disabled this via a CLI command and it has been rock solid till now.

I cant remember if i tried my HG612 either lol.

I have also read somewhere the quickest way to reduce interleaving is to cap the line via a CLI command, not that i know what that command is on the Draytek.

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[UK Sentinel]

What’s your > vdsl status more results, can you paste them here?

Edit: do you happen to have an old AM/MW radio if so tune it to 612KHz and walk around house /outside etc. to see if you have any interference via REIN etc.

For capping speeds via DrayTeK 130, I would cap speeds via ASUS router as I am sure capping a modem cannot help with Interleaving, maybe changing SNR would help, but usually best to let DSLAM do its stuff.

For all things CLI DrayTeK, take a look at attachment

DrayTek-CLIRef-2016-1-3.pdf (23 downloads )

 

 

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Bully]

———————- 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          :      0               0
LOF          :      0               0
LPR          :      0               0
LOM          :      0               0
SosSuccess   :      0               0
NCD          :      0               0
LCD          :      0               0
FECS         :   49924920            53123 (seconds)
ES           :   6901            2626 (seconds)
SES          :      0              31 (seconds)
LOSS         :      0               1 (seconds)
UAS          :     32            80139 (seconds)
HECError     :      0               0
CRC          :   246559            4012
RsCorrection :      0               0
INP          :      0              40 (symbols)
InterleaveDelay :      0            1600 (1/100 ms)
NFEC         :    255              64
RFEC         :     16              16
LSYMB        :   2862            11528
INTLVBLOCK   :    255              64
AELEM        :      0            —-

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[Grisu]

What does RT-AC86U have to do with modem and DSL-failures?

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[UK Sentinel]

@Grisu – long story but issue is not modem, not all users are as knowledgeable as U and I – no harm in any user asking (we are a friendly forum) 

@Bully – thanks for stats, all looks as expected, I wanted to see if they was trailing G.INP on your ECI DSLAM, but looks like you are not one of the “chosen” ones ;-)

CAP Router speeds and see if DLM does its stuff for your CRC’s but did notice one of your Bitswaps is off, just checking old post ?

Update; your old stats are the same regarding bitswap, so no change but it is odd why your Near End Bitswap is Off ?

Just checked my Draytek 130 and both bitswap near and far are On, I am on a Huawei Cabinet and checked other posts and they are on ECI and Bitswap is On/On ?

Interesting I think ?

 

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Grisu]

Bully wrote:

Hi, I updated to the latest Merlin firmware this morning (about 9 am) and since doing so my NE CRC count has gone up to 326598 over 5 hours.

No, my question has been asked seriously!

I dont understand how router update may influence modem CRCs and as he told it occoured on his line. And I dont think it can’t happen, maybe some frequent requests need too much ressources from modem and brings it half way down. There is a lot we cant imagine but happens in reality.

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[UK Sentinel]

@Grisu – very rare for faulty routers to cause issues with modem synch/stability, but does happen especially with faulty  power supplies on routers plugged into same power sockets / extensions as modem etc.

Luckily for @Bully, just bad luck they noticed problem after upgrade, might have been happening before or something caused a power spike with modem (who really knows) ?

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Bully]

Grisu wrote:

Bully wrote:

Hi, I updated to the latest Merlin firmware this morning (about 9 am) and since doing so my NE CRC count has gone up to 326598 over 5 hours.

No, my question has been asked seriously! I dont understand how router update may influence modem CRCs and as he told it occoured on his line. And I dont think it can’t happen, maybe some frequent requests need too much ressources from modem and brings it half way down. There is a lot we cant imagine but happens in reality.

 

@Grisu I thought it could only be the router firmware upgrade as stats and line was solid before the firmware upgrade.

@UK Sentinel – any way to turn the Near End Bitswap back on, or should I leave it off?

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[UK Sentinel]

I do not know why it is disabled, but to enable try:

“vdsl optn bitswap bi 1 on”

but not sure on exact telnet cmd so check out page 176 of above draytek cmd document and do a backup. just incase

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Bully]

tried the command vdsl optn bitswap bi 1 on but it is still showing as off on the DS.

 

My errors on the down stream after reboot is staying on 1 count now.

 

**EDIT** Just checked again and is now showing as enable on DS and US.

Current stats –

NE CRC Count            :      741       FE CRC Count         :     4023
NE ES Count             :       15       FE  ES Count         :     2633

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[UK Sentinel]

Did it say the cmd completed correctly ?

Error count to 1 ;-)

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Bully]

Edited my last post above

 

———————- ATU-R Info (hw: annex A, f/w: annex A/B/C) ———–
Running Mode            :      17A       State                : SHOWTIME
DS Actual Rate          : 34999000 bps   US Actual Rate       : 10681000 bps
DS Attainable Rate      : 45404592 bps   US Attainable Rate   : 10761705 bps
DS Path Mode            :  Interleave    US Path Mode         :        Fast
DS Interleave Depth     :     1475       US Interleave Depth  :        1
NE Current Attenuation  :       20 dB    Cur SNR Margin       :        6  dB
DS actual PSD           :     6. 4 dB    US actual PSD        :    12. 9  dB
NE CRC Count            :      741       FE CRC Count         :     4023
NE ES Count             :       15       FE  ES Count         :     2633
Xdsl Reset Times        :        0       Xdsl Link  Times     :        1
ITU Version[0]          : fe004452       ITU Version[1]       : 41590000
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 :       27 dB    Far SNR Margin       :        6  dB
CO ITU Version[0]       : b5004946       CO ITU Version[1]    : 544ed086
DSLAM CHIPSET VENDOR    : < IFTN >
> vdsl status more

———————- ATU-R Info (hw: annex A, f/w: annex A/B/C) ———–
Near End        Far End    Note
Trellis      :      1               1
Bitswap      :      1               1
ReTxEnable   :      0               0
VirtualNoise :      0               0
20BitSupport :      0               0
LatencyPath  :      0               0
LOS          :      0               0
LOF          :      0               0
LPR          :      0               0
LOM          :      0               0
SosSuccess   :      0               0
NCD          :      0               0
LCD          :      0               0
FECS         :   377647            53302 (seconds)
ES           :     16            2634 (seconds)
SES          :      1              31 (seconds)
LOSS         :      0               1 (seconds)
UAS          :     33            80317 (seconds)
HECError     :      0               0
CRC          :    816            4025
RsCorrection :      0               0
INP          :      0              40 (symbols)
InterleaveDelay :      0            1600 (1/100 ms)
NFEC         :    255              64
RFEC         :     16              16
LSYMB        :   2866            11794
INTLVBLOCK   :    255              64
AELEM        :      0            —-

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[UK Sentinel]

So was it the cmd that work for bitswap ?

Edit: just seen your last post/edit, good news about bitswap being enabled, just remember config will not stay after reboot, to save config you need to do the following.

“vdsl savecfg ” I would leave all alone for a few days and see what happens

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Bully]

Yeah it worked, just took its time in showing as enabled.

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[UK Sentinel]

Bully wrote:

Yeah it worked, just took its time in showing as enabled.

In a completely sane world, madness is the only freedom (J.G.Ballard).

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[Author]

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