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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

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

0 Mbps 68.23 Mbps
Max Achievable Speed
Download speedachieved during the test was - 0.06 Mbps
For your connection, the acceptable range of speedsis 16 Mbps-68.23 Mbps .
Additional Information:
IP Profile for your line is - 68.23 Mbps
2. Upstream Test:  -provides background information.
Upload Speed
0.04 Mbps

0 Mbps 20 Mbps
Max Achievable Speed
Upload speed achieved during the test was - 0.04Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps
Anonymous
Not applicable

Re: Peak time latency spikes

This is a bit strange !
Usually when I run a ping test using - http://www.pingtest.net/,  the program pings a load of servers and then proceeds to do a jitter test using the server with the lowest ping.
Normally the lowest pings (for me) come from one of about five sites in London - which seems logical because London is my nearest major gateway.  However tonight when I use this program, the pings returned in London (and presumably the rest of England) are so high, that I am getting lower pings from servers in different COUNTRIES !
The lowest ping I can get in London is 102ms, whereas Dublin is returning 59ms, and least jitter from Norway !



What the hell is going on ?  
If there is less latency from foreign servers, then is this bottleneck in Plusnet gateways or in the main BT trunks across England ?
Crazy
jamesanstee
Aspiring Pro
Posts: 558
Thanks: 28
Fixes: 3
Registered: ‎20-04-2012

Re: Peak time latency spikes

Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation.  All rights reserved.
C:\Users\Private>tracert www.bbc.co.uk
Tracing route to www.bbc.net.uk [212.58.246.93]
over a maximum of 30 hops:
 1    <1 ms    <1 ms    <1 ms  192.168.1.1
 2    11 ms    11 ms    10 ms  lo0-central10.pcl-ag04.plus.net [195.166.128.185
]
 3    11 ms    10 ms    10 ms  link3-central10.pcl-gw01.plus.net [84.93.249.100
]
 4    10 ms    10 ms    10 ms  52.core.plus.net [212.159.1.52]
 5    10 ms    10 ms    11 ms  ae1.ptw-cr02.plus.net [195.166.129.2]
 6    10 ms    10 ms    11 ms  ae2.ptw-cr01.plus.net [195.166.129.4]
 7    28 ms    11 ms    11 ms  kingston-gw.thdo.bbc.co.uk [212.58.239.6]
 8     *        *        *     Request timed out.
 9    11 ms    11 ms    11 ms  ae0.er01.cwwtf.bbc.co.uk [132.185.254.93]
10    12 ms    12 ms    12 ms  132.185.255.165
11    12 ms    11 ms    11 ms  bbc-vip014.cwwtf.bbc.co.uk [212.58.246.93]
Trace complete.
C:\Users\Private>

Anonymous
Not applicable

Re: Peak time latency spikes


And now suddenly, ping times are back to normal !   Shocked
jamesanstee
Aspiring Pro
Posts: 558
Thanks: 28
Fixes: 3
Registered: ‎20-04-2012

Re: Peak time latency spikes

Quote from: purleigh
And now suddenly, ping times are back to normal !   Shocked
Not for me connection is barely usable . And im connected to the gateway known as pcl-ag04.
Kelly
Hero
Posts: 5,498
Thanks: 373
Fixes: 9
Registered: ‎04-04-2007

Re: Peak time latency spikes

I'm really sorry about this guys.  I've got people trying to work out what's going on.  
Purleigh:  What gateway are you on?
Kelly Dorset
Ex-Plusnet Jobsbody
jamesanstee
Aspiring Pro
Posts: 558
Thanks: 28
Fixes: 3
Registered: ‎20-04-2012

Re: Peak time latency spikes

Im starting to lose faith in the We'll do you proud slogan as at the moment this issue does seem to have been ongoing for sometime.
Anonymous
Not applicable

Re: Peak time latency spikes

I'm still on 'ptn-ag01'
Kelly
Hero
Posts: 5,498
Thanks: 373
Fixes: 9
Registered: ‎04-04-2007

Re: Peak time latency spikes

Purleigh: I've think I've figured out what's going on with your connection.  I didn't realise you were still 20CN.  I'll talk with Dave about it and try and sort tomorrow.    I suspect your problem is different to everyone else.

Kelly Dorset
Ex-Plusnet Jobsbody
Anonymous
Not applicable

Re: Peak time latency spikes

@Kelly:
Does it involve a free upgrade to "Max Premium" - to get the most from my 20CN line on a never to be upgraded 'Market 1' exchange ?.
PLEASE ?
PRETTY PLEASE !
Kelly
Hero
Posts: 5,498
Thanks: 373
Fixes: 9
Registered: ‎04-04-2007

Re: Peak time latency spikes

Sadly, I don't think that will help.  Undecided
jamesanstee:  Sorry dude Sad  I'm working on it though!
Kelly Dorset
Ex-Plusnet Jobsbody
Anonymous
Not applicable

Re: Peak time latency spikes

@Kelly:  Are there any other tests you want me to try tonight to test your theory ?
Kelly
Hero
Posts: 5,498
Thanks: 373
Fixes: 9
Registered: ‎04-04-2007

Re: Peak time latency spikes

I suspect it's fine now?  Yeah?
Kelly Dorset
Ex-Plusnet Jobsbody
Gus
Aspiring Pro
Posts: 3,240
Thanks: 34
Fixes: 3
Registered: ‎31-07-2007

Re: Peak time latency spikes

More problems with tvcatchup.com tonight.  Ping trace to tvcatchup is normal / my connection Speed tests are normal 4.7mbit / wireshark capture is normal all incoming packets tagged as 0x80.  Yet still buffering every 60-90 seconds on all channels, if it was just one channel then it could be a problem with that channel, but I tried all BBC/ITV and a few others with the same results, too many with the same fault says its not there.
FTTP 500 regrade from Tues 28th November
Anonymous
Not applicable

Re: Peak time latency spikes


Yes I have still have full speed, and pings have returned from >100ms, to about 40ms (rather than the 23ms I used to have) - which you said is due to interleaving having been applied to my connection.
Is my line stable enough to have interleaving switched off ? - my router shows maybe one or two CRC errors per day.