BQM question

[Bill]

Noticed this morning that my latency had gone up:



First thought was that the DLM had dumped me on interleave again, it usually does that around autumn/early winter time. But a speed test (tbb) was the same as usual, and a BTW test showed my profile unchanged at 69.58Mbps.

So, could interleave be applied without affecting speed/profile or is it more likely that either BT or IDNet have put me on the scenic route?

[Gary]

I have noticed the forum is running slow at the moment, Bill. You BBQ meter Image does not load straight away.  Posting seems slower to. Page created in 0.217 seconds with 26 queries. Where as coming back to the post from another is Page created in 0.143 seconds with 26 queries.

[Gary]

and its all ok again  (until I tried posting and its slow again) 

[Bill]

I'm not seeing much slowdown on the tbb forum but some parts of the main site are slow, BQM images as you say, and speed test graphs are even slower.

But that shouldn't affect the data used to produce the BQM as far as I know.

I've noticed that this forum is usually very slow in the early morning, I've always assumed something like a server backup is running.

[andrue]

I just noticed that this morning I had no connection. Although my TBBQM shows no problem. Don't know what that's about but I thought it was just my router losing its LAN interface.

[zappaDPJ]

I can see a Fibre BQM from a different ISP showing a similar rise in latency at about 3:45am. That's slightly earlier but it's the first fluctuation I've notice on that line in months so it might be significant.

[cavillas]

I just noticed that this morning I had no connection. Although my TBBQM shows no problem. Don't know what that's about but I thought it was just my router losing its LAN interface.

Probably the storms last night, mine lost its ip addresses to computers until a repair run.

[Glenn]

Bill, do you know if your line connects through Reading, my line shows the same jump around 4-5am

[Bill]

@Zap- that's handy to know, thanks.

@Alf- I wondered that, but there wasn't even much rain around here, let alone storms!

@Glenn- I'm not sure, but I don't think so. The RSS showed some kerfuffle or other at Reading a week or so ago, but it didn't affect me. How would I find out?

[Glenn]

Just do a trace route, it should show where it goes through.

[Bill]

I've tried a few of those... ignoring the fact they don't mean much to me, most of them are timing out:

Code Select Expand

iMac-3:~ billford$ traceroute idnet.com
traceroute to idnet.com (212.69.36.10), 64 hops max, 52 byte packets
1  www.asusnetwork.net (192.168.1.1)  0.501 ms  0.238 ms  0.211 ms
2  telehouse-gw2-lo1.idnet.net (212.69.63.51)  17.629 ms  18.794 ms  18.705 ms
3  212.69.63.184 (212.69.63.184)  17.759 ms  17.809 ms  17.367 ms
4  redbus-gw5-gi2-1276.idnet.net (212.69.63.9)  17.510 ms  17.276 ms  17.758 ms
5  redbus-gw1-gi5-0-301.idnet.net (212.69.63.209)  18.485 ms  18.325 ms  17.659 ms
6  * * *


Code Select Expand

iMac-3:~ billford$ traceroute bbc.co.uk
traceroute: Warning: bbc.co.uk has multiple addresses; using 212.58.251.195
traceroute to bbc.co.uk (212.58.251.195), 64 hops max, 52 byte packets
1  www.asusnetwork.net (192.168.1.1)  0.414 ms  7.465 ms  0.256 ms
2  telehouse-gw2-lo1.idnet.net (212.69.63.51)  17.845 ms  18.162 ms  17.998 ms
3  212.69.63.247 (212.69.63.247)  37.261 ms  17.556 ms  17.507 ms
4  * * *


Code Select Expand

traceroute to forums.thinkbroadband.com (80.249.99.126), 64 hops max, 52 byte packets
1  www.asusnetwork.net (192.168.1.1)  10.739 ms  0.238 ms  0.208 ms
2  telehouse-gw2-lo1.idnet.net (212.69.63.51)  18.301 ms  17.335 ms  17.765 ms
3  212.69.63.247 (212.69.63.247)  17.479 ms  17.733 ms  17.470 ms
4  gi4-42-75-idnet.bdr-rt3.thdo.ncuk.net (80.249.97.109)  17.281 ms  17.532 ms  17.735 ms
5  gi1-24-10-star1.core-rs2.thdo.ncuk.net (80.249.97.9)  19.766 ms  18.517 ms  21.788 ms
6  * * *
although some don't:

Code Select Expand

iMac-3:~ billford$ traceroute google.co.uk
traceroute: Warning: google.co.uk has multiple addresses; using 173.194.41.184
traceroute to google.co.uk (173.194.41.184), 64 hops max, 52 byte packets
1  www.asusnetwork.net (192.168.1.1)  0.454 ms  0.241 ms  0.212 ms
2  telehouse-gw2-lo1.idnet.net (212.69.63.51)  18.409 ms  18.407 ms  17.977 ms
3  212.69.63.247 (212.69.63.247)  17.784 ms  18.100 ms  17.486 ms
4  redbus-gw2-gi3-331.idnet.net (212.69.63.5)  17.516 ms  17.534 ms  17.754 ms
5  google1.lonap.net (5.57.80.136)  18.501 ms  18.503 ms  20.497 ms
6  209.85.255.78 (209.85.255.78)  37.943 ms  18.385 ms  17.981 ms
7  72.14.238.63 (72.14.238.63)  18.507 ms  18.368 ms  18.230 ms
8  lhr08s04-in-f24.1e100.net (173.194.41.184)  18.629 ms  17.978 ms  18.222 ms


Mean anything to you, or any suggestions for a better url to try?

[Steve]

Mine latency went up last week at the '05:00 DLM I'll raise your Interleave again time' it usually takes 2-3 weeks to settle again, I've not noticed any reduction in throughput when this happens though.

[Bill]

... I've not noticed any reduction in throughput when this happens though.

Ah, right... in the past I've always lost a few Mbps when the "winter interleave" went on. Maybe this is just a gentle dose and will recover in a few week

[andrue]

Having had time for a better look at my graph it looks decidedly odd:



The modem says the connection has been up for over three days. Not that I think that was a fault - I took it upon myself to rearrange the cables in that area of the study and did a bit of an whoopsie with the power cable 

Other monitors on the Craigswebsite list show the 4pm glitches but not the bigger outages. 

[zappaDPJ]

Could almost be twins

[andrue]

Could almost be twins

At first glance yeah but my big outage was 1am, yours was 3am. Still - a curious and comforting similarity. Network outages I can live with. It's when the copper starts pratting about that I worry 

Mind you speaking of curious at some point my media/mail server clock decided to jump back an hour. I've no idea why. Nothing in the time server event logs to explain it. I went to the Internet Time tab, clicked update and it just fixed itself without a complaint.

http://www.youtube.com/watch?v=NzlG28B-R8Y

[mervl]

Get the same daytime packet loss (up to 5%, not the bigger drops) which looks like a network issue, but nothing more. No connection drops here though. Up since 3rd Sept (a record for BT Wholesale).

I have the odd problem with phone apps which default to GMT on a random basis when they are set to allow for daylight saving. A time server reset issue perhaps?

[andrue]

I have the odd problem with phone apps which default to GMT on a random basis when they are set to allow for daylight saving. A time server reset issue perhaps?

Maybe. I don't think it's done it before. It mostly just sits in a corner of the study minding its own business.

[Bill]

I went to the Internet Time tab, clicked update and it just fixed itself without a complaint.

Why not run ntpd and keep it sync'd to someone like NPL?

[andrue]

Why not run ntpd and keep it sync'd to someone like NPL?

It's been syncing with Microsoft's time server up 'till now.

[Bill]

It's been syncing with Microsoft's time server up 'till now.

Not sure if it might have been the problem, but in some years the US shift from Daylight Saving time to "normal" time doesn't happen on the same date as in the UK... it can cause confusion on occasion!

That's why I always make damn sure to use a UK time server, and nobody is going to argue with NPL

[Steve]

Sunday the 3rd November this year

[Bill]

Ah well, it was a thought.

[andrue]

Ah well, it was a thought.

It was a good one. I don't have any explanation