Peak time latency spikes
Quote from: Bright
Quote from: Kelly On the WBC platform we aren't seeing packet loss or latency that is significant. Buffer utilisation will directly = latency.
So this problem only affects customers on 20CN IPSC products?
No, this is the confusing thing. We are seeing complaints across both. I suspect the IPSC problems are because of what I was describing earlier. We can't see any reason for the WBC speed decreases.
Quote from: Bright The latency graphs for yesterday evening showed the same increased latency for bronze and best efforts queues on WBC as on IPSC, I thought. Although tonight the WBC graphs look OK
That latency won't have affected speedtests, gaming etc. It would have resulted in possible some slowdowns on bronze queue traffic (usenet, p2p) but those protocols are quite resistant to latency tbh. Those peaks shouldn't be there mind you. its on my list to review with Dave next week when he's back in.
Speedtest from bt wholesale tester note the ping is 0 
FAQ
1. Best Effort Test: -provides background information.
Download Speed
24.61 Mbps
0 Mbps 67.54 Mbps
Max Achievable Speed
Download speedachieved during the test was - 24.61 Mbps
For your connection, the acceptable range of speedsis 16 Mbps-67.54 Mbps .
Additional Information:
IP Profile for your line is - 67.54 Mbps
2. Upstream Test: -provides background information.
Upload Speed
3.94 Mbps
0 Mbps 20 Mbps
Max Achievable Speed
Upload speed achieved during the test was - 3.94Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps
FAQ
1. Best Effort Test: -provides background information.
Download Speed
24.61 Mbps
0 Mbps 67.54 Mbps
Max Achievable Speed
Download speedachieved during the test was - 24.61 Mbps
For your connection, the acceptable range of speedsis 16 Mbps-67.54 Mbps .
Additional Information:
IP Profile for your line is - 67.54 Mbps
2. Upstream Test: -provides background information.
Upload Speed
3.94 Mbps
0 Mbps 20 Mbps
Max Achievable Speed
Upload speed achieved during the test was - 3.94Mbps
Additional Information:
Upstream Rate IP profile on your line is - 20 Mbps
Speed test from speedtest.net now it seems my upload speed is now being affected too something clearly is not right yet the openreach engineer says my line was clear and i know the exchange status is green so that aint the issue 
Latest for me: 
Pathping:
Kelly - I've PM'd you a link to the wireshark captures I've done. Let me know if they're useful / you need them doing again / differently etc.
Pathping:
Tracing route to www.bbc.net.uk [212.58.244.68]
over a maximum of 30 hops:
0 SERVER.lan [192.168.1.70]
1 dsldevice.lan [192.168.1.254]
2 lo0-central10.ptw-ag04.plus.net [195.166.128.194]
3 link13-central10.ptw-gw01.plus.net [84.93.248.120]
4 xe-10-0-0.ptw-cr01.plus.net [212.159.1.40]
5 kingston-gw.thdo.bbc.co.uk [212.58.239.6]
6 * * *
Computing statistics for 125 seconds...
Source to Here This Node/Link
Hop RTT Lost/Sent = Pct Lost/Sent = Pct Address
0 SERVER.lan [192.168.1.70]
0/ 100 = 0% |
1 0ms 0/ 100 = 0% 0/ 100 = 0% dsldevice.lan [192.168.1.254]
0/ 100 = 0% |
2 --- 100/ 100 =100% 100/ 100 =100% lo0-central10.ptw-ag04.plus.net [195.166.128.194]
0/ 100 = 0% |
3 13ms 0/ 100 = 0% 0/ 100 = 0% link13-central10.ptw-gw01.plus.net [84.93.248.120]
0/ 100 = 0% |
4 10ms 0/ 100 = 0% 0/ 100 = 0% xe-10-0-0.ptw-cr01.plus.net [212.159.1.40]
0/ 100 = 0% |
5 10ms 0/ 100 = 0% 0/ 100 = 0% kingston-gw.thdo.bbc.co.uk [212.58.239.6]
Trace complete.
Kelly - I've PM'd you a link to the wireshark captures I've done. Let me know if they're useful / you need them doing again / differently etc.
BBC iplayer diagnostic speed test 
I don't normally use my connection heavily at peak times, but things are definitely not going well here - ethernet connection to BT HH3.
Just now -
Usually -
Currently on pcl-ag04
Just now -
Usually -
Currently on pcl-ag04
ptn-ag04, 20CN.
The 20CN ping issues I'm seeing exactly mirror 21CN. They don't seem to be affecting my BB experience though.
I don't think Kelly meant the 20CN platform was "congested"?
Speedtests are fine at the moment, I had one very bad BBC Diagnostic but on a repeat it was fine. I've just been streaming BBC2, I don't stream at this time of day normally, and apart from about 30seconds of buffering at one point it was fine.
As for the IPSC Latency graphs, I don't recall seeing these large peaks on Bronze and Best Effort a while back. And as they exactly mirror what is being seen on the TBB ping graphs that others have posted, surely it's indicative of the issue?
The 20CN ping issues I'm seeing exactly mirror 21CN. They don't seem to be affecting my BB experience though.
I don't think Kelly meant the 20CN platform was "congested"?
Speedtests are fine at the moment, I had one very bad BBC Diagnostic but on a repeat it was fine. I've just been streaming BBC2, I don't stream at this time of day normally, and apart from about 30seconds of buffering at one point it was fine.
As for the IPSC Latency graphs, I don't recall seeing these large peaks on Bronze and Best Effort a while back. And as they exactly mirror what is being seen on the TBB ping graphs that others have posted, surely it's indicative of the issue?
Speed test taken a few moments ago. 
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 [212.58.244.71]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 192.168.1.1
2 34 ms 17 ms 17 ms lo0-central10.ptw-ag03.plus.net [195.166.128.197
]
3 66 ms 69 ms 66 ms link2-central10.ptw-gw02.plus.net [84.93.248.66]
4 44 ms 60 ms 63 ms xe-7-2-0.ptw-cr02.plus.net [212.159.1.22]
5 69 ms 110 ms 67 ms ae2.ptw-cr01.plus.net [195.166.129.4]
6 40 ms 39 ms 40 ms kingston-gw.thdo.bbc.co.uk [212.58.239.6]
7 * * * Request timed out.
8 * * * Request timed out.
9 47 ms 44 ms 46 ms ae0.er01.telhc.bbc.co.uk [132.185.254.109]
10 77 ms 67 ms 67 ms 132.185.255.148
11 42 ms 46 ms 49 ms bbc-vip116.telhc.bbc.co.uk [212.58.244.71]
Trace complete.
C:\Users\Private>
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 [212.58.244.71]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 192.168.1.1
2 34 ms 17 ms 17 ms lo0-central10.ptw-ag03.plus.net [195.166.128.197
]
3 66 ms 69 ms 66 ms link2-central10.ptw-gw02.plus.net [84.93.248.66]
4 44 ms 60 ms 63 ms xe-7-2-0.ptw-cr02.plus.net [212.159.1.22]
5 69 ms 110 ms 67 ms ae2.ptw-cr01.plus.net [195.166.129.4]
6 40 ms 39 ms 40 ms kingston-gw.thdo.bbc.co.uk [212.58.239.6]
7 * * * Request timed out.
8 * * * Request timed out.
9 47 ms 44 ms 46 ms ae0.er01.telhc.bbc.co.uk [132.185.254.109]
10 77 ms 67 ms 67 ms 132.185.255.148
11 42 ms 46 ms 49 ms bbc-vip116.telhc.bbc.co.uk [212.58.244.71]
Trace complete.
C:\Users\Private>
After a disconnect tonight, I landed on ptw-ag04
Pretty terrible overall, with speedtests running about this speed:
Funnily, it seems that anything time-sensitive but small, (like teamspeak chatter) is fine. Bulk downloads (like torrenting, usenet and "Web downloading") seem to be affected. Even web browsing is sluggish.
Traceroutes are unaffected. Speedtests to "outside the UK" servers are just as slow. Pings are coming in at sub-20ms.
Weird. I don't envy you, Kelly
Pretty terrible overall, with speedtests running about this speed:
Funnily, it seems that anything time-sensitive but small, (like teamspeak chatter) is fine. Bulk downloads (like torrenting, usenet and "Web downloading") seem to be affected. Even web browsing is sluggish.
Traceroutes are unaffected. Speedtests to "outside the UK" servers are just as slow. Pings are coming in at sub-20ms.
Weird. I don't envy you, Kelly