Packet Loss 4pm to 10pm each day
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- Re: Packet Loss 4pm to 10pm each day
Packet Loss 4pm to 10pm each day
19-01-2017 8:50 AM
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I'm seeing significant packet loss between 4pm and 10pm each day.
MTR seems to suggest that the packet loss is occurring somewhere in the PN-BT infrastructure.
I raised a ticket and the problem went away but then came back, but BT closed the ticket even though I said I still had tbe problem.
I was wondering if anyone else has been experiencing this.
Re: Packet Loss 4pm to 10pm each day
19-01-2017 10:14 AM
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is this on new network ?
samsung 850evo 250gig , WD black 2 TB . Asus Phoebus sound ,
16 gig Avexir ram 2400 , water cooling Corsair H100i gtx ,
Corsair 750HXI Psu , Phanteks Enthoo pro case .
Re: Packet Loss 4pm to 10pm each day
19-01-2017 4:16 PM - edited 19-01-2017 4:19 PM
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I'm on a fixed IP (had it for several years) and currently connecting through pcn-bng01
I'm hoping to get home when things are really bad and grab some MTR data.. if I leave it running all day the % loss it reports is just about zero
Re: Packet Loss 4pm to 10pm each day
19-01-2017 6:16 PM
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I also have a fixed IP .
i just powered off my router Non PN , for several hours while out now on psb-bng03. see how it goes
samsung 850evo 250gig , WD black 2 TB . Asus Phoebus sound ,
16 gig Avexir ram 2400 , water cooling Corsair H100i gtx ,
Corsair 750HXI Psu , Phanteks Enthoo pro case .
Re: Packet Loss 4pm to 10pm each day
19-01-2017 6:56 PM
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And of course tonight its not that bad, I've tried stressing the line (downloading Windows and Linux updates at the same time), streaming some video... but its behaving itself :
Packets Pings Host Loss% Snt Last Avg Best Wrst StDev 1. 192.168.0.66 0.0% 5721 0.4 0.3 0.3 3.4 0.1 2. lo0.central10.pcn-bng01.plus.net 0.2% 5721 10.5 12.2 9.6 139.9 10.3 3. 411.be5.pcn-ir02.plus.net 0.2% 5721 10.6 12.1 10.1 137.0 10.0 4. 195.99.125.144 0.2% 5721 10.4 12.1 10.0 129.2 10.0 5. 62.172.103.49 0.2% 5721 11.2 13.1 10.5 129.5 10.4 6. 195.99.126.101 0.2% 5721 11.3 13.1 10.7 137.2 10.3 7. ??? 8. ae0.er02.cwwtf.bbc.co.uk 0.2% 5721 12.7 13.6 11.4 147.3 10.4 9. 132.185.255.165 0.2% 5721 12.6 14.3 11.8 144.9 10.3 10. bbc-vip011.cwwtf.bbc.co.uk 0.2% 5720 12.0 13.5 11.4 148.4 10.2
Re: Packet Loss 4pm to 10pm each day
20-01-2017 7:57 PM
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Packets Pings Host Loss% Snt Last Avg Best Wrst StDev 1. 192.168.0.66 0.0% 3943 0.4 0.3 0.3 7.5 0.2 2. lo0.central10.pcn-bng01.plus.net 0.5% 3943 10.3 10.8 9.6 93.5 6.7 3. 411.be5.pcn-ir02.plus.net 0.4% 3942 11.4 11.1 10.1 102.3 5.8 4. 195.99.125.140 0.5% 3942 10.8 11.1 10.0 98.5 5.8 5. 195.99.127.83 0.4% 3942 12.0 12.0 10.9 93.9 5.5 6. ??? 7. te2-1-9.star10g.bdr-rt3.thdo.ncu 0.4% 3942 11.3 14.6 10.7 232.8 20.8 8. po4-31.core-rs2.thdo.ncuk.net 0.3% 3942 13.5 18.1 11.0 414.5 26.4 9. www.thinkbroadband.com 0.3% 3942 12.0 12.0 11.0 82.9 5.1
Re: Packet Loss 4pm to 10pm each day
21-01-2017 6:43 PM - edited 21-01-2017 6:49 PM
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Getting some loss between my router and PN tonight..
Packets Pings Host Loss% Snt Last Avg Best Wrst StDev 1. 192.168.0.66 0.0% 217 0.4 0.3 0.3 0.7 0.0 2. lo0.central10.pcn-bng01.plus.net 1.8% 217 10.5 11.0 9.9 35.7 2.8 3. 411.be5.pcn-ir02.plus.net 1.8% 217 10.8 10.8 10.3 12.4 0.1 4. 195.99.125.140 1.8% 217 10.7 10.9 10.3 17.5 0.7 5. 62.172.103.13 1.4% 216 11.1 11.4 10.5 28.5 1.8 6. 194.74.65.42 1.4% 216 11.0 11.5 10.7 19.6 0.8 7. ??? 8. ??? 9. ae0.er01.telhc.bbc.co.uk 0.9% 216 23.2 11.7 10.8 31.6 2.1 10. 132.185.255.148 0.9% 216 12.3 12.9 11.7 22.8 1.4 11. bbc-vip115.telhc.bbc.co.uk 1.4% 216 11.5 11.5 10.9 13.0 0.1
Manged to kill MTR by accident so restarted it:
Packets Pings Host Loss% Snt Last Avg Best Wrst StDev 1. 192.168.0.66 0.0% 507 0.3 0.3 0.3 0.9 0.0 2. lo0.central10.pcn-bng01.plus.net 1.8% 507 10.3 11.4 9.7 90.7 6.5 3. 411.be5.pcn-ir02.plus.net 2.0% 506 10.8 11.3 10.2 87.5 6.2 4. 195.99.125.140 1.8% 506 10.2 11.3 10.0 89.6 5.3 5. 62.172.103.13 1.4% 506 10.6 12.1 10.5 96.0 6.8 6. 194.74.65.42 1.2% 506 11.4 12.4 10.7 99.2 6.5 7. ??? 8. ??? 9. ae0.er01.telhc.bbc.co.uk 1.2% 506 11.2 12.3 10.8 95.9 6.8 10. 132.185.255.148 1.6% 506 12.0 13.3 11.4 95.0 6.3 11. bbc-vip115.telhc.bbc.co.uk 1.6% 506 11.3 12.0 10.9 86.8 5.7
Re: Packet Loss 4pm to 10pm each day
22-01-2017 3:55 PM
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If the packetloss to the last hop is ok you can largely ignore the middle hops as routers drop icmp in favour of doing real work, but they are useful as your last mtr shows the same loss through the whole route so is indicating a problem around router to pcn-bng01
When this happens disconnect and go to a 2nd gateway and if still the same probably a hot svlan congestion. If totally clear a good indicator to pn to look at the ip you had and the route it would take through bng01
Re: Packet Loss 4pm to 10pm each day
22-01-2017 3:55 PM
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Re: Packet Loss 4pm to 10pm each day
22-01-2017 4:09 PM
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As I'm on call and all I've got now is packet loss and nothing else I'm loathed to try anything in case I end up back with lousy throughput
Re: Packet Loss 4pm to 10pm each day
22-01-2017 4:26 PM
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The packet loss could be occurring anywhere beyond the router - including over the VDSL2 link between modem and FTTC cabinet. It could be congestion, or it could be REIN, but we don't have any DSL stats so it's not easy to tell which of those the problem might be.
I think congestion would likely show up as higher latencies maybe with some packet loss, but your ping monitor graphs have packet loss without any increase in latency at those times.
It might be worth seeing if the packet loss is worse for larger packets, using Windows commands such as:
ping -n 50 -l 32 pingbox1.thinkbroadband.com
ping -n 50 -l 1400 pingbox1.thinkbroadband.com
Larger packets are more likely to be hit by REIN than smaller packets.
Re: Packet Loss 4pm to 10pm each day
22-01-2017 5:10 PM - edited 22-01-2017 6:06 PM
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I suspect its a mix of multiple things - I suspect the 13 year old copper cable to the pole is probably suffering as its a very long run and sags under its own weight. But the packet loss has a distinct pattern which suggests problems else where as well.
Ping with a 1400 bytes packet shows no problems:
--- pingbox1.thinkbroadband.com ping statistics ---
1001 packets transmitted, 1001 received, 0% packet loss, time 999683ms
rtt min/avg/max/mdev = 13.651/14.464/41.378/1.388 ms
steve@Debussy:~$
Re: Packet Loss 4pm to 10pm each day
23-01-2017 7:02 AM
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If it was contention caused by something being too busy then I would have thought that it would show a different pattern on Saturday and Sunday.... but it doesn't.
If it was something in my house then it seems odd that it starts before I get home from work, and again if it was something like the central heating then I'd expect to see it in the morning too, as well as more frequently over the weekend..
That's why I was wondering if anyone else was seeing it - in case its something odd in PNs inftrastructure.....
Re: Packet Loss 4pm to 10pm each day
23-01-2017 7:07 AM
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Re: Packet Loss 4pm to 10pm each day
24-01-2017 10:12 AM
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Yesterday
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