Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Do the same again, except this time use "pathping" instead of traceroute. But to be honest, those results look fine.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

He didn't choose a problematic URL - which is what you requested.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Indeed, this is probably exactly why qasdfdsaq didn't go into much further detail. I'm not convinced that an elevated ping of 10ms to a single site is an issue worth getting into. Unless you can demonstrate that a site has significantly higher ping than it should, it'll be a nightmare to pin down the real cause of it.

In any case, the fact that there's no issue up to the BBC shows that the local connection is fine, so even if we could find a site with a higher ping, it's almost certainly something out of his control (And Good luck explaining this to first line).

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

mtr is a nice tool to check latency and packetloss with and there is a winmtr version if you are using windows.http://winmtr.net/

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I have a mac, don't have path ping? I found MTR?

This is for Youtube


Also cableforum

Found one now.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Aside from some congestion effects they all look perfectly normal.

---------- Post added at 01:23 ---------- Previous post was at 01:22 ----------

And that would be what?

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

https://www.cableforum.co.uk/images/local/2013/11/8.png

Mmmmmm, and I was out all day

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Can Anyone help me out with some advice on this one please?

120M/12M service
SH2 in modem mode
8 Downstream channels
1 Upstream channel

Before my summer hols - like this nearly every day - consistent 100M+ down and 8M+ up

http://www.thinkbroadband.com/ping/s...08-08-2013.png


After my summer hols (SH2 was switched off for a couple of week - big mistake I think) - now with a new IP address - very inconsistent performance, down and up fluctuating all over the shop. significant jitter

http://www.thinkbroadband.com/ping/s...22-09-2013.png

and tonight

http://www.thinkbroadband.com/ping/s...03-10-2013.png

Power levels look to be in line with acceptable ranges

Downstream (manually rebooted two days ago)
Power Level (dBmV) 3.16 4.15 3.88 3.40 3.77 3.95 3.62 3.44
RxMER (dB) 37.09 37.09 36.84 37.09 37.36 37.94 37.36 37.09
Pre RS Errors 12802 12339 7816 6376 4175 4171 4563 4198
Post RS Errors 1127 1142 1027 1201 878 866 1236 782

Upstream Power 45.50 no timeouts

A couple of WinMTR results which seem to indicate a big problem with the first hop outside.

http://www.thinkbroadband.com/ping/s...8-08-2013.html
WinMTR dell.com
|-----------------------------------------------------------------------------------------------|

| WinMTR statistics |

| Host - % | Sent | Recv | Best | Avrg | Wrst | Last |

|-----------------------------------------------------|------|------|------|------|------|------|

| 192.168.*.* - 0 | 1658 | 1658 | 0 | 1 | 4 | 1 |

|cpc9-heme***************.virginmedia.com - 1 | 1654 | 1653 | 8 | 25 | 1472 | 15 |

|lutn-core-2b-ae5-2547.network.virginmedia.net - 1 | 1650 | 1648 | 9 | 18 | 165 | 12 |

|nrth-bb-1c-ae12-0.network.virginmedia.net - 0 | 1657 | 1657 | 9 | 19 | 188 | 19 |

| 62.253.174.189 - 0 | 1658 | 1658 | 19 | 29 | 214 | 26 |

| xe-2-0-1.cr1.ams5.nl.above.net - 0 | 1658 | 1658 | 19 | 28 | 207 | 20 |

| xe-0-1-0.mpr1fra3.de.above.net - 0 | 1658 | 1658 | 25 | 35 | 204 | 28 |

| xe-0-0-0.mpr1.fra4.de.above.net - 1 | 1654 | 1653 | 24 | 37 | 294 | 33 |

| xe-7-1-1.mpr1.cdg11.fr.above.net - 0 | 1658 | 1658 | 29 | 39 | 245 | 38 |

| xe-0-0-0.mpr2.cdg12.fr.above.net - 0 | 1658 | 1658 | 28 | 39 | 208 | 34 |

| ge-7-1-0.mpr1.lhr2.uk.above.net - 0 | 1658 | 1658 | 28 | 36 | 207 | 33 |

| so-5-3-0.mpr1.lhr3.uk.above.net - 1 | 1654 | 1653 | 28 | 37 | 197 | 39 |

| xe-7-0-0.mpr2.lhr3.uk.above.net - 0 | 1658 | 1658 | 29 | 38 | 219 | 34 |

| 64.125.24.121.available.above.net - 1 | 1654 | 1653 | 28 | 38 | 191 | 32 |

| xe-8-3-0.cr1.lga5.us.above.net - 1 | 1654 | 1653 | 0 | 117 | 265 | 111 |

| xe-1-0-0.cr2.lga5.us.above.net - 1 | 1650 | 1648 | 107 | 118 | 289 | 117 |

| xe-0-2-1.er2.lga5.us.above.net - 1 | 1654 | 1653 | 102 | 112 | 255 | 126 |

| 192.205.36.105 - 0 | 1658 | 1658 | 103 | 112 | 281 | 116 |

| cr2.n54ny.ip.att.net - 0 | 1658 | 1658 | 141 | 150 | 330 | 148 |

| cr2.wswdc.ip.att.net - 1 | 1654 | 1653 | 142 | 151 | 326 | 150 |

| cr1.attga.ip.att.net - 0 | 1658 | 1658 | 142 | 152 | 334 | 149 |

| cr2.dlstx.ip.att.net - 1 | 1654 | 1653 | 143 | 152 | 306 | 151 |

| cr81.auttx.ip.att.net - 0 | 1658 | 1658 | 141 | 150 | 326 | 147 |

| ggr1.dlstx.ip.att.net - 0 | 1658 | 1658 | 140 | 157 | 340 | 149 |

| 12.249.215.6 - 0 | 1658 | 1658 | 141 | 149 | 324 | 145 |

| No response from host - 100 | 332 | 0 | 0 | 0 | 0 | 0 |

| No response from host - 100 | 332 | 0 | 0 | 0 | 0 | 0 |

| No response from host - 100 | 332 | 0 | 0 | 0 | 0 | 0 |

| No response from host - 100 | 332 | 0 | 0 | 0 | 0 | 0 |

| No response from host - 100 | 332 | 0 | 0 | 0 | 0 | 0 |

|_________________________________________________ ____|______|______|______|______|______|______|

WinMTR v0.92 GPL V2 by Appnor MSP - Fully Managed Hosting & Cloud Provider


WinMTR bbc.co.uk

|-----------------------------------------------------------------------------------------------|

| WinMTR statistics |

| Host - % | Sent | Recv | Best | Avrg | Wrst | Last |

|-----------------------------------------------------|------|------|------|------|------|------|

| 192.168.*.* - 0 | 553 | 553 | 0 | 1 | 8 | 1 |

|cpc9-heme*******************.virginmedia.com - 0 | 552 | 552 | 9 | 31 | 1565 | 12 |

|lutn-core-2a-ae5-2547.network.virginmedia.net - 0 | 553 | 553 | 8 | 14 | 84 | 13 |

|popl-bb-1c-ae2-0.network.virginmedia.net - 0 | 553 | 553 | 9 | 16 | 112 | 12 |

|nrth-bb-1c-ae7-0.network.virginmedia.net - 0 | 553 | 553 | 11 | 17 | 51 | 15 |

|nrth-bb-1b-ae11-0.network.virginmedia.net - 4 | 486 | 469 | 11 | 24 | 125 | 13 |

| tele-ic-4-ae0-0.network.virginmedia.net - 1 | 549 | 548 | 13 | 22 | 122 | 16 |

| pos6-1.rt0.thdo.bbc.co.uk - 0 | 553 | 553 | 12 | 19 | 78 | 15 |

| No response from host - 100 | 110 | 0 | 0 | 0 | 0 | 0 |

| ae0.er01.cwwtf.bbc.co.uk - 0 | 553 | 553 | 14 | 21 | 77 | 20 |

| 132.185.255.156 - 0 | 553 | 553 | 16 | 21 | 48 | 17 |

| www-vip.cwwtf.bbc.co.uk - 0 | 553 | 553 | 14 | 20 | 56 | 19 |

|_________________________________________________ ____|______|______|______|______|______|______|

WinMTR v0.92 GPL V2 by Appnor MSP - Fully Managed Hosting & Cloud Provider
http://www.thinkbroadband.com/ping/s...13.htmlhttp://

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

I don't see the problem in the WinMTR. Could you be more specific please? I didn't understand the bit I highlighted: "A couple of WinMTR results which seem to indicate a big problem with the first hop outside."

In your stats, you have post-RS errors. Are these growing?

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

The WinMTR wrst column has figures of 1472ms and 1565ms and for the bbc set an average of 31ms - these seem unusually high to me, but maybe not?

The Post RS errors have increased from around 300 immediately after the reboot (which is fairly normal) to the current values in three days.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

The BBC according to my eyes had an average of 20 ms. The max at the Hemel CMTS means that a packet addressed directly to VM's Hemel server had an RTT of 1472/1565. This means that occasionally, the low priority pings are given degraded priority over other traffic - but note, they are not discarded which is what they would be if the CMTS was congested.

The post-RS errors shouldn't be occurring. True, the rate is lowish but they are lost packets and will affect your experience. When you changed IP addresses, were the past and current address totally different? The usual thing if you switch off for a week or more is that you get a new IP address on the same line card and that your downstream channels are in the same bonding group. Have your downstream channel numbers changed? If the channels are totally different then you've been moved to a different line card and so has everyone else on your cabinet. If all that has changed, there has possibly been a resegmentation and the loading on your segment is different from before.

The Post-RS errors are not congruent with the SNR/RxMER values. I can't see if you have an SH2 or a SH1; the former always shows lower SNR values than the SH1. But either way, the reported SNR is more than adequate to support no noise, which is the usual cause for packet loss on the downstream. Also, the SH1 is known not to count post-RS errors correctly.

So, if the post-RS count is correct, that suggests the packets either arrive corrupted at the SH or are corrupted en-route which needs to be investigated by VM.

It might pay to see what your neighbours are experiencing.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

It is an SH2, which rebooted (for unknown reason) very early this morning. IP address is completely different before/after summer hol , but will need to rummage through files to see if I have the previous channels recorded anywhere. Re-segmentation is a possibility - though you'd hope that would improve things, not make them worse. Time to face the fun of calling VM I suppose. Thanks for your assistance.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

It won't be better if they've swung you and a load of others onto a temporary CMTS (currently HEME9) while they beef up the one you were on. I notice you only habe one upstream channel - should be two when they've finished their upgrades.

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

What about me? :(

Re: Think Broadband Ping Monitor Results (POST YOURS)
 

Ha ha Craigie! An updated TBB would be instructive.