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Packet loss + Latency

GeordieMark
Grafter
Posts: 335
Thanks: 1
Registered: 10-11-2013

Packet loss + Latency

Hey guys,
The wind has got up again an my connection has decided to annoyingly intermittently play up.
I'm seeing "disconnects" in the way that when I'm browsing pages will refuse to load for about 30 seconds, or if I'm on IRC / playing a game it'll ping out, however according to the modem there was no dsl resync and PPP session never dropped according to my router.
However, I think something in causing a massive amount of errors, as every night this week my interleave depth has gone up, last week it was 500 something (sorry I can't remember the exact number, and today it is on 1543  Sad
I was hoping one of you guys could do whatever tests you can on my line to see if anything is showing up your end please?
For those of you interested in stats and stuff  Grin
xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 7415 Kbps, Downstream rate = 39700 Kbps
Path: 0, Upstream rate = 7288 Kbps, Downstream rate = 36382 Kbps
Link Power State: L0
Mode: VDSL2 Annex B
VDSL2 Profile: Profile 17a
TPS-TC: PTM Mode
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 4.4 6.0
Attn(dB): 0.0 0.0
Pwr(dBm): 12.0 4.1
VDSL2 framing
Path 0
B: 47 228
M: 1 1
T: 64 5
R: 12 16
S: 0.0420 0.9990
L: 11436 1962
D: 1543 1
I: 60 245
N: 60 245
Counters
Path 0
OHF: 116258948 710730
OHFErr: 511 248
RS: 3992486455 1225151
RSCorr: 1721863710 793
RSUnCorr: 22740 0
Path 0
HEC: 4875 0
OCD: 0 0
LCD: 0 0
Total Cells: 441320677 0
Data Cells: 1807312543 0
Drop Cells: 0
Bit Errors: 0 0
ES: 83 177
SES: 0 0
UAS: 20 20
AS: 313526
Path 0
INP: 6.00 0.00
PER: 2.68 16.23
delay: 16.00 0.00
OR: 71.47 19.21
Bitswap: 193395 656
Total time = 1 days 15 hours 5 min 47 sec
FEC: 1721863710 793
CRC: 511 248
ES: 83 177
SES: 0 0
UAS: 20 20
LOS: 0 0
LOF: 0 0
Latest 15 minutes time = 5 min 47 sec
FEC: 6045575 1
CRC: 0 1
ES: 0 1
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Previous 15 minutes time = 15 min 0 sec
FEC: 15532348 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Latest 1 day time = 15 hours 5 min 47 sec
FEC: 939588018 169
CRC: 57 55
ES: 14 39
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Previous 1 day time = 24 hours 0 sec
FEC: 371028408 270
CRC: 40 74
ES: 11 62
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Since Link time = 3 days 15 hours 5 min 25 sec
FEC: 1721863710 793
CRC: 511 248
ES: 83 177
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
#

Last 24 hour snapshot TBB graph which shows no dropouts but the latency increasing
6 REPLIES
Plusnet Help Team
Plusnet Help Team
Posts: 5,604
Thanks: 530
Fixes: 203
Registered: 01-01-2012

Re: Packet loss + Latency

I can't find your account through the usual means.
Can you PM me your user-name and I'll see what's happening
If this post resolved your issue please click the 'This fixed my problem' button
 Matthew Wheeler
 Plusnet Help Team
GeordieMark
Grafter
Posts: 335
Thanks: 1
Registered: 10-11-2013

Re: Packet loss + Latency

Hi Matt, sorry for the late reply, I've messaged you the username
Ta
Plusnet Help Team
Plusnet Help Team
Posts: 5,604
Thanks: 530
Fixes: 203
Registered: 01-01-2012

Re: Packet loss + Latency

Thanks for that
Something does appear to have happened as Interleaving is set to high on your line.
"0.128M-60M Downstream, Interleaving High - 0.128M-19M Upstream, Error Protection Off"
Our tests aren't showing anything obvious from our end here although we can only view error counts for the past 15 minutes.
Do the errors increase at a certain time of day?
If this post resolved your issue please click the 'This fixed my problem' button
 Matthew Wheeler
 Plusnet Help Team
GeordieMark
Grafter
Posts: 335
Thanks: 1
Registered: 10-11-2013

Re: Packet loss + Latency

Hi Matt,
Seems to be when the wind picks up, same as last time. However Openreach refuse to believe that could possibly be a cause, they never come when it's windy and the last guy said even if they did, they couldnt go up the pole to check connections when it's windy anyway so I;m kind of stuck >_<
The last guy who was here did trace back from the cab to the DP (pole) monitored at the test socket and saw drops, no drobs at the cab or the DP, the only thing they didn't replace was the drop wire, which is what I think could be the problem, as it's the only bit that's exposed and "moves about" during the wind. Also AFAIK it hasn't been changed since the properties were built in the 70's, but OR don't seem keen on replacing this for whatever reason Sad
Does what I'm saying make sense or sound possible in the slightest? We've ruled out most other things. The last guy said the next step would be a lift and shift but I don't think that'd help since there's no errors / drops at the cab port.
Thanks for reading Cheesy
Community Veteran
Posts: 6,824
Thanks: 1
Registered: 27-10-2012

Re: Packet loss + Latency

If you get a SFI engineer, they quite often replace the drop wire if they cannot find any faults elsewhere and they think it will improve performance.
When it's windy, do you notice any noise on the line (you can do the 17070 Quiet Line Test)?
GeordieMark
Grafter
Posts: 335
Thanks: 1
Registered: 10-11-2013

Re: Packet loss + Latency

Hey Andy,
Yep it affects the line too, but we notice it more on the broadband cause that's in use all the time, I imagine if we used the landline more we'd notice it all the time on there too, but I have tried the quiet line test etc
I've managed to get a case opened with OR about the crappy quality of the ali lines in my street which they are apparently looking into, and they've given me a reference number which I have no way to check up on >_<