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Peak time latency spikes

jamesanstee
Aspiring Pro
Posts: 558
Thanks: 28
Fixes: 3
Registered: ‎20-04-2012

Re: Peak time latency spikes

BT Wholesale speed test result...


1. Best Effort Test:  -provides background information.
Download Speed
6.03 Mbps

0 Mbps 67.49 Mbps
Max Achievable Speed
Download speedachieved during the test was - 6.03 Mbps
For your connection, the acceptable range of speedsis 12 Mbps-67.49 Mbps .
Additional Information:
IP Profile for your line is - 67.49 Mbps
2. Upstream Test:  -provides background information.
Upload Speed
3.64 Mbps

0 Mbps 20 Mbps
Max Achievable Speed
Upload speed achieved during the test was - 3.64Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps
AndyH
Grafter
Posts: 6,824
Thanks: 1
Registered: ‎27-10-2012

Re: Peak time latency spikes

@ chris
On the TAP3 test (for me), it says "Waiting for www.adobe.com"; in the status bar, then 20 secs or so later you get a red message "System is busy. Please try again later."
Finguz
Grafter
Posts: 397
Thanks: 1
Registered: ‎21-02-2013

Re: Peak time latency spikes

This router ( TG582n ) does not seem to like when I try and change the details to the BT logon with a zero as password, the webpage just times out and I can't access any of the routers gui until I reboot, and it reboots with the plusnet details.
gateway pcl-ag08.

Slightly better.
AndyH
Grafter
Posts: 6,824
Thanks: 1
Registered: ‎27-10-2012

Re: Peak time latency spikes

Well trying to get the TAP3 test going, I hopped gateways to ptw-ag04 and managed to replicate the speed problems (last 2 tests) as you can see (was on ptn-ag2 before I think):
3/12/2013 10:05 PM GMT 14.63 Mb/s 14.48 Mb/s 28 ms London < 50 mi
3/12/2013 10:04 PM GMT 8.36 Mb/s 14.39 Mb/s 31 ms London < 50 mi
3/12/2013 10:02 PM GMT 84.04 Mb/s 15.24 Mb/s 9 ms London < 50 mi
3/12/2013 9:54 PM GMT 84.93 Mb/s 15.19 Mb/s 5 ms London < 50 mi
3/12/2013 9:41 PM GMT 86.18 Mb/s 15.24 Mb/s 5 ms London < 50 m
Big difference!
dave
Plusnet Help Team
Plusnet Help Team
Posts: 12,731
Thanks: 1,608
Fixes: 13
Registered: ‎04-04-2007

Re: Peak time latency spikes

AndyH - stay where you are please.
Dave Tomlinson
Enterprise Architect - Network & OSS
Plusnet Technology
AndyH
Grafter
Posts: 6,824
Thanks: 1
Registered: ‎27-10-2012

Re: Peak time latency spikes

Ok staying put.
its weird as pinging the beeb looks really good:
Quote
Ping statistics for 212.58.251.195:
    Packets: Sent = 100, Received = 100, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 4ms, Maximum = 6ms, Average = 4ms

Yet, BT test shows this:
Quote
Download speed achieved during the test was - 11.33 Mbps
For your connection, the acceptable range of speed sis 16 Mbps-96.54 Mbps .
Additional Information:
IP Profile for your line is - 96.54 Mbps
Upload speed achieved during the test was - 13.1Mbps
Additional Information:
Upstream Rate IP profile on your line is - 15 Mbps

dave
Plusnet Help Team
Plusnet Help Team
Posts: 12,731
Thanks: 1,608
Fixes: 13
Registered: ‎04-04-2007

Re: Peak time latency spikes

AndyH can you try again please and see if it's any different, just trying something.
Dave Tomlinson
Enterprise Architect - Network & OSS
Plusnet Technology
Finguz
Grafter
Posts: 397
Thanks: 1
Registered: ‎21-02-2013

Re: Peak time latency spikes

I reset my router to factory defaults and I've tried 12 times to run part 3 of the BT speedtest. If I use the test3.speedtester e.t.c address it fails on the DNS lookup, and if I try the  http://217.32.105.42/ ; one it simply times out.

dave
Plusnet Help Team
Plusnet Help Team
Posts: 12,731
Thanks: 1,608
Fixes: 13
Registered: ‎04-04-2007

Re: Peak time latency spikes

Quote from: rookey
Dave you doing any line check for me pls?

Yeah, but I've been looking for some people that were on a certain part of the network tonight to try and collect some data and try and rule in/out something but your connection wasn't on the part I needed it to be to be able to collect the before and after data. Finguz was and AndyH is now.
Dave Tomlinson
Enterprise Architect - Network & OSS
Plusnet Technology
AndyH
Grafter
Posts: 6,824
Thanks: 1
Registered: ‎27-10-2012

Re: Peak time latency spikes

Speeds are better, but way below norm:


Pings still high for norm too on those tests.
Finguz
Grafter
Posts: 397
Thanks: 1
Registered: ‎21-02-2013

Re: Peak time latency spikes

I just landed back on ag04  Sad


That graph looks awful.
dave
Plusnet Help Team
Plusnet Help Team
Posts: 12,731
Thanks: 1,608
Fixes: 13
Registered: ‎04-04-2007

Re: Peak time latency spikes

Finguz - thanks, just run a line check and it's showing a lot of errors. I see you've got a fault ticket open already so I'll ask Chris if he can have a look in the morning and see if we can work out what's wrong.
AndyH - thanks, got the data I needed, although not the result I was hoping for so need to do a bit of reading up tomorrow. Feel free to disconnect and see if it goes back to normal.
Dave Tomlinson
Enterprise Architect - Network & OSS
Plusnet Technology
Finguz
Grafter
Posts: 397
Thanks: 1
Registered: ‎21-02-2013

Re: Peak time latency spikes

Thanks Dave, hopefully you've got something worthwhile out of our misery  Cool
AndyH
Grafter
Posts: 6,824
Thanks: 1
Registered: ‎27-10-2012

Re: Peak time latency spikes

bbc.co.uk pings are high now:
Quote
Ping statistics for 212.58.253.67:
   Packets: Sent = 100, Received = 100, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
   Minimum = 9ms, Maximum = 37ms, Average = 24ms

The gateway pings are lower:
Quote
Ping statistics for 195.166.128.194:
   Packets: Sent = 100, Received = 100, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
   Minimum = 4ms, Maximum = 126ms, Average = 11ms

AndyH
Grafter
Posts: 6,824
Thanks: 1
Registered: ‎27-10-2012

Re: Peak time latency spikes

Back to normal on ptw-ag01  Smiley

@ dave - I have the wireshark log if that's any use (was just doing speed tests/pings/traceroutes)