Packet loss
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- Re: Packet loss
08-03-2019 9:25 PM
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Mtr_Version | Start_Time | Status | Host | Hop | Ip | Loss% | Snt | Last | Avg | Best | Wrst | StDev | |
MTR.0.87 | 1552079796 | OK | pingbox1.thinkbroadband.com | 1 | foo.bar | 0 | 100 | 0 | 0.27 | 0.23 | 0.17 | 0.4 | 0 |
MTR.0.87 | 1552079796 | OK | pingbox1.thinkbroadband.com | 2 | A.router | 0 | 100 | 0 | 0.35 | 0.33 | 0.26 | 0.53 | 0 |
MTR.0.87 | 1552079796 | OK | pingbox1.thinkbroadband.com | 3 | 100 | 100 | 100 | 0 | 0 | 0 | 0 | 0 | |
MTR.0.87 | 1552079796 | OK | pingbox1.thinkbroadband.com | 4 | 133.hiper04.sheff.dial.plus.net.uk | 74 | 100 | 74 | 19.34 | 17.12 | 12.44 | 26.62 | 4.28 |
MTR.0.87 | 1552079796 | OK | pingbox1.thinkbroadband.com | 5 | 132.hiper04.sheff.dial.plus.net.uk | 0 | 100 | 0 | 14.33 | 17.36 | 12.1 | 32.98 | 5.85 |
MTR.0.87 | 1552079796 | OK | pingbox1.thinkbroadband.com | 6 | 195.99.125.144 | 0 | 100 | 0 | 25.5 | 17.8 | 12.94 | 31.87 | 4.59 |
MTR.0.87 | 1552079796 | OK | pingbox1.thinkbroadband.com | 7 | peer8-et-7-0-4.telehouse.ukcore.bt.net | 0 | 100 | 0 | 45.26 | 28.58 | 13.19 | 78.24 | 14.08 |
MTR.0.87 | 1552079796 | OK | pingbox1.thinkbroadband.com | 8 | 100 | 100 | 100 | 0 | 0 | 0 | 0 | 0 | |
MTR.0.87 | 1552079796 | OK | pingbox1.thinkbroadband.com | 9 | po4-31.core-rs2.thdo.ncuk.net | 0 | 100 | 0 | 38.12 | 22.77 | 13.48 | 174.69 | 18.74 |
MTR.0.87 | 1552079796 | OK | pingbox1.thinkbroadband.com | 10 | pingbox1.thinkbroadband.com | 0 | 100 | 0 | 18.76 | 18.8 | 12.75 | 35.33 | 5.34 |
hop 3 is the first device after my edge router, unidentified, is this in the exchange?
hop 4 is PN's?
hop 8, unidentified
What would be the high loss percentages especially hops 3 & 4?
Thanks
Fixed! Go to the fix.
Re: Packet loss
08-03-2019 9:48 PM - edited 08-03-2019 9:59 PM
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are you on a static ip address?
if so maybe something to do with the way plusnet routes the data threw there network ?
Re: Packet loss
09-03-2019 6:34 AM
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I am not sure, a power cycle resulted in the same ip address.
I have never requested a static address as I have no requirement.
I have an ongoing issue with reduction in speed (sync remains constant) between 18:00 and 00:00 most days,
but during that time period wan traffic is low.
Here is another one, at 06:30, wan traffic minimal
Mtr_Version | Start_Time | Status | Host | Hop | Ip | Loss% | Snt | Last | Avg | Best | Wrst | StDev | |
MTR.0.87 | 1552112863 | OK | pingbox1.thinkbroadband.com | 1 | foo.bar | 0 | 100 | 0 | 0.35 | 0.24 | 0.17 | 0.37 | 0 |
MTR.0.87 | 1552112863 | OK | pingbox1.thinkbroadband.com | 2 | A.router | 0 | 100 | 0 | 0.38 | 0.36 | 0.24 | 3.5 | 0.3 |
MTR.0.87 | 1552112863 | OK | pingbox1.thinkbroadband.com | 3 | 100 | 100 | 100 | 0 | 0 | 0 | 0 | 0 | |
MTR.0.87 | 1552112863 | OK | pingbox1.thinkbroadband.com | 4 | 133.hiper04.sheff.dial.plus.net.uk | 62 | 100 | 62 | 12.5 | 12.29 | 11.8 | 12.9 | 0 |
MTR.0.87 | 1552112863 | OK | pingbox1.thinkbroadband.com | 5 | 132.hiper04.sheff.dial.plus.net.uk | 0 | 100 | 0 | 12.26 | 13.57 | 11.71 | 137.13 | 12.46 |
MTR.0.87 | 1552112863 | OK | pingbox1.thinkbroadband.com | 6 | 195.99.125.144 | 0 | 100 | 0 | 13.05 | 13.3 | 12.29 | 36.99 | 2.38 |
MTR.0.87 | 1552112863 | OK | pingbox1.thinkbroadband.com | 7 | peer8-et-7-0-4.telehouse.ukcore.bt.net | 0 | 100 | 0 | 13.11 | 17.52 | 12.66 | 204.42 | 24.1 |
MTR.0.87 | 1552112863 | OK | pingbox1.thinkbroadband.com | 8 | 100 | 100 | 100 | 0 | 0 | 0 | 0 | 0 | |
MTR.0.87 | 1552112863 | OK | pingbox1.thinkbroadband.com | 9 | po4-31.core-rs2.thdo.ncuk.net | 0 | 100 | 0 | 163.81 | 23.18 | 12.94 | 393.57 | 44.21 |
MTR.0.87 | 1552112863 | OK | pingbox1.thinkbroadband.com | 10 | pingbox1.thinkbroadband.com | 0 | 100 | 0 | 13.03 | 14.47 | 12.5 | 150.82 | 13.85 |
09-03-2019 8:26 AM - edited 09-03-2019 8:27 AM
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Hi dws1900,
That is not packet loss as all packets reached the destination. Zero % loss on hop 10.
Hop 3 and 8 will be configured not to reply to being pinged.
Hop 4 would appear to respond to some pings. Presumably the router prioritises routing packets over responding to pings?
Regards
Richard
Re: Packet loss
09-03-2019 8:58 AM
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Re: Packet loss
09-03-2019 10:33 AM - edited 09-03-2019 10:35 AM
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Hi
Just to expand, I was trying to determine where on the network the problem lies with the throughput in the evening, where the speedtest drops from 20Mbs to around 5Mbs, between 18:00 to 19:00, and the latency tends to rise.
Re: Packet loss
09-03-2019 11:36 AM
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Hi dws1900,
A one hour speed reduction could be the BT wholesale network from your exchange to the PN handover point reaching its maximum throughput. A so called "hot VLAN". However, this often results in the slow downs occurring from 4/5pm onwards and for more than one hour.
Have you raised a fault with PN?
The typical testing scenario is to ensure only one PC is connected to the router and connected via ethernet.
Then run some BT wholesale speedtests in 24 hours, at least one when the slow down occurs and one in off peak.
PN and BT should be able to access these speedtest as evidence of the issue.
Regards
Richard
Re: Packet loss
09-03-2019 11:54 AM - edited 09-03-2019 12:01 PM
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Hi
oops, i missed typed, apologies, it is from 18:00 to 00:00 (typically, not exactly) , and PN have stated its not a hot vlan, and the backhaul is sufficient.
From 00:00 to 18:00 (typically) its 20Mbs approximately download on the speed tests.
The sync speed is around 22Mbs, which is as good as it gets for my lengthy line.
SNR is typically 3-4 db on dl, its a Huewi dslam and a Vigor router.
I am going to carry out a repeat test where everything is off apart from my linux based monitoring system, which does a speed-test every 15 mins.
Re BT flash based test on the W10 system it shows it as a fault between 18:00 - 00:00 (typical) but ok at other times!!
(Flash not allowed on any other system due to security issues)
Here is one I made earlier.
Date. Location Provider Km. Latency UL. DL
2019-03-08 23:45:02 | Leek | Internet Connections Ltd | 37.04 | 21.06 ms | 2.62 MB/s | 20.26 MB/s |
2019-03-08 23:30:01 | Leek | Internet Connections Ltd | 37.04 | 22.23 ms | 2.59 MB/s | 19.26 MB/s |
2019-03-08 23:15:01 | Leek | Internet Connections Ltd | 37.04 | 24.61 ms | 2.68 MB/s | 14.98 MB/s |
2019-03-08 23:00:01 | Leek | Internet Connections Ltd | 37.04 | 21.16 ms | 2.41 MB/s | 15.67 MB/s |
2019-03-08 22:45:01 | Leek | Internet Connections Ltd | 37.04 | 22.41 ms | 2.34 MB/s | 14.11 MB/s |
2019-03-08 22:30:02 | Leek | Internet Connections Ltd | 37.04 | 29.36 ms | 2.61 MB/s | 7.20 MB/s |
2019-03-08 22:15:01 | Sheffield | High Availability Hosting Ltd | 39.12 | 35.22 ms | 2.64 MB/s | 4.14 MB/s |
2019-03-08 22:00:02 | Nottingham | CWCS Managed Hosting | 24.00 | 35.83 ms | 2.61 MB/s | 4.59 MB/s |
2019-03-08 21:45:01 | Leek | Internet Connections Ltd | 37.04 | 36.45 ms | 2.65 MB/s | 3.63 MB/s |
2019-03-08 21:30:03 | Sheffield | High Availability Hosting Ltd | 39.12 | 87.09 ms | 2.11 MB/s | 3.56 MB/s |
2019-03-08 21:15:02 | Sheffield | High Availability Hosting Ltd | 39.12 | 29.46 ms | 2.76 MB/s | 13.33 MB/s |
2019-03-08 21:00:02 | Sheffield | IDAQ Ltd | 39.12 | 29.48 ms | 2.60 MB/s | 6.77 MB/s |
2019-03-08 20:45:02 | Sheffield | IDAQ Ltd | 39.12 | 36.27 ms | 2.52 MB/s | 3.24 MB/s |
2019-03-08 20:30:02 | Sheffield | IDAQ Ltd | 39.12 | 31.89 ms | 2.35 MB/s | 6.88 MB/s |
2019-03-08 20:15:01 | Leek | Internet Connections Ltd | 37.04 | 25.43 ms | 2.67 MB/s | 15.25 MB/s |
2019-03-08 20:00:01 | Nottingham | CWCS Managed Hosting | 24.00 | 32.31 ms | 2.71 MB/s | 7.35 MB/s |
2019-03-08 19:45:01 | Leek | Internet Connections Ltd | 37.04 | 22.69 ms | 2.49 MB/s | 17.51 MB/s |
2019-03-08 19:30:02 | Leek | Internet Connections Ltd | 37.04 | 22.41 ms | 2.43 MB/s | 19.11 MB/s |
2019-03-08 19:15:02 | Leek | Internet Connections Ltd | 37.04 | 21.77 ms | 2.62 MB/s | 19.72 MB/s |
Re: Packet loss
09-03-2019 5:42 PM
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Hi
Assumming noting your end is using the bandwidth, the speedtest results seem like those of a circuit on a hot VLAN to me!
My speedtest results are similar in the evening when my kids are streaming videos!
Could be worth pushing PN to ask BT to double check the VLAN utilisation.
Re: Packet loss
09-03-2019 6:15 PM - edited 09-03-2019 6:17 PM
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Hi
Yes I think I will. There is an unresolved ticket where I tasked myself to try and get some correlated evidence from a neighbour on BT, but nothing concrete , and they are not geeky like me!!
PN wanted me to fault it out, but realistically whats an OR engineer going to do?, say the lines OK, it syncs within the contracted speed not much else can we do about it. I spoke to an OR engineer while out and about, he said they call it peaks and troughs, and it could be the dslam or PN's equipment.
Annoyingly the dsalm was modified to take an extra 128 lines, despite being 1.5k from me and 200m from the exchange (duh).
The County Council politico's have been crowing that under BDUK the county has over 90 odd percent 24Mbs (Superfast) service, well not my street!!
Re: Packet loss
10-03-2019 11:50 AM - edited 10-03-2019 11:51 AM
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@dws1900 wrote:PN wanted me to fault it out, but realistically whats an OR engineer going to do?, say the lines OK, it syncs within the contracted speed not much else can we do about it.
Hi I agree the Openreach tech is unlikely to find anything but PN like most ISPs have their processes and procedures - flow diagrams to follow!
I would raise a speed fault and hìghlight that it only occurs at peak times.
Then if PN want to send a BT tech ask one of the PN staff on the forum to assist.
Regards
Richard
Re: Packet loss
10-03-2019 2:08 PM
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To answer your question re static address, no I believe it is dynamic as I have had a power outage, followed by a reboot, address has changed.
Re: Packet loss
10-03-2019 5:31 PM
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ok m8 just wondered if it had something to do with that thats all and ok m8
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