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camieabz
(sensei) Mon 27-Feb-12 00:57:49

Re: Whassap?

[re: jelv] [link to this post]

In reply to a post by jelv:
How can you say that? You have absolutely no visibility of the tunnelled route between your exchange and the Plusnet gateways. I am almost positive that if you kept reconnecting until you were back on the same gateway as before you'd find the latency was still elevated.

So what's causing it, and do you have visible proof of the cause?

~~~~~~~~~~

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Interviewer: �Is that a bad thing?�

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jelv
(knowledge is power) Mon 27-Feb-12 10:13:31

Re: Whassap?

[re: camieabz] [link to this post]

How many times do I have to say the same thing before you stop coming back with dumb relies? It's the BT routing.

Whilst the last jump I've seen it is not as significant a jump as you've seen, I do have proof that this happens without a change of gateway. I have a simple scheduled command file that logs my current gateway every five minutes. Here's the log for between 11am and midday on 25th Feb:

Text

25/02/2012 
10:55  2    22 ms    20 ms    18 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:00  2    20 ms    22 ms    27 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:05  2    35 ms    34 ms    34 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:10  2    22 ms    20 ms    20 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:15  2    22 ms    19 ms    20 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:20  2    23 ms    25 ms    23 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:25  2    24 ms    20 ms    20 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:30  2    21 ms    22 ms    20 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:35  2    23 ms    20 ms    21 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:40  2    27 ms    19 ms    22 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:45  2    30 ms    60 ms    44 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:50  2    23 ms    20 ms    21 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
11:55  2    20 ms    19 ms    19 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
12:00  2    72 ms    63 ms    97 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243] 
 25/02/2012 
12:05  2    20 ms    20 ms    22 ms  lo0-central3.pcl-ag04.plus.net [195.166.128.243]

As you can see the gateway is unchanged. In addition my router uptime shows I've had a continuous connection going back over 18 days: http://imageshack.us/photo/my-images/402/routeruptim...

Now if you look at the latency graph from the SamKnows monitoring you can see a step change occurred between 11am and midday: http://imageshack.us/photo/my-images/607/latency.png/

The ONLY thing that can have changed is on the BT network.

jelv

Plusnet user since November 2001

camieabz
(sensei) Mon 27-Feb-12 12:45:19

Re: Whassap?

[re: jelv] [link to this post]

In reply to a post by jelv:
How many times do I have to say the same thing before you stop coming back with dumb relies? It's the BT routing.

Check your attitude Jelv. Your snippyness doesn't fix my problem. My gateway changed between the changes in ping times, so the assumption is valid. Further more, in the past, almost all similar changes in ping have been down to gateway changes on a reboot.

Look at the graph:

http://www.camieabz.co.uk/ping.png

Note the red line at 3am and the subsequent rise in ping. Said red line is similar to a router reboot, but obviously I didn't reboot the router as I was sleeping.

As for "How can you say that?, all I said was that the only thing that had changed (from my perspective) was the gateway. One's perspective is all one has to go on, so be slightly less quick to jump on folk for it.

Now waiting for a PN rep who can solve the problem.

Edited by camieabz (Mon 27-Feb-12 17:51:16)

cajef
(experienced) Mon 27-Feb-12 17:45:05

Re: Whassap?

[re: camieabz] [link to this post]

Linky no worky Camie.

Too many WWWW's ?

PlusNet ADSL2+
I used to have a handle on life, but it broke.

Edited by cajef (Mon 27-Feb-12 17:45:30)

deleted
(deleted) Mon 27-Feb-12 17:59:08

Re: Whassap?

[re: cajef] [link to this post]

Cammie..have you tried mybroadband speed tests when this is happening? I have been getting wild fluctuations. I am currently on ptn-ag01

Pipexer
(eat-sleep-adslguide) Mon 27-Feb-12 20:29:55

Re: Whassap?

[re: camieabz] [link to this post]

To be fair Camie - while the increase may be to do with the gateway you are connected to, does not mean the problem with the gateway, the BT routing may differ between what gateway you get landed on, or it may have just changed by coincidence.

It would be unusual for a gateway that is defective or overloaded to increase latency uniformly, that is not the manner they operate in. The increase in latency is down to the change in routing which has occured, which is very likely within the BT network.

You are not seeing the tens of hops you are going through in the BT network so even probability alone suggests it's not the first gateway.

______________
Zen 8000 Active

jelv
(knowledge is power) Mon 27-Feb-12 21:23:20

Re: Whassap?

[re: deleted] [link to this post]

mybroadbandspeed is getting hit with people who have recently gone on to the FTTC 80/20 trial. Even before that it was showing signs of being overloaded and PN have admitted it needs an upgrade. It's results should be ignored at present.

jelv

Plusnet user since November 2001

deleted
(deleted) Tue 28-Feb-12 00:28:57

Re: Whassap?

[re: jelv] [link to this post]

ahhhhhh .. will bear that in mind..many thanks

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