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Increase in RTT, Decrease in Throughput during peak traffic
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- Re: Increase in RTT, Decrease in Throughput during...
Increase in RTT, Decrease in Throughput during peak traffic
21-02-2013 10:35 PM
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Hi,
I've generally been quite impressed by my PlusNet 80/20 connection until recently.
Since joining late last year I had noticed on f8lure that the average RTT does instead slightly during peak hours (7 to midnight) however since the 19th I have been seeing an increase in minimum round trip time and an increase in packet loss.
Some pings to bbc.co.uk I just captured, these times are poor!
PING bbc.co.uk (212.58.241.131): 56 data bytes
64 bytes from 212.58.241.131: icmp_seq=0 ttl=245 time=76.174 ms
64 bytes from 212.58.241.131: icmp_seq=1 ttl=245 time=81.305 ms
Request timeout for icmp_seq 2
64 bytes from 212.58.241.131: icmp_seq=3 ttl=245 time=69.173 ms
64 bytes from 212.58.241.131: icmp_seq=4 ttl=245 time=79.343 ms
64 bytes from 212.58.241.131: icmp_seq=5 ttl=245 time=77.067 ms
64 bytes from 212.58.241.131: icmp_seq=6 ttl=245 time=76.598 ms
64 bytes from 212.58.241.131: icmp_seq=7 ttl=245 time=227.813 ms
64 bytes from 212.58.241.131: icmp_seq=8 ttl=245 time=79.440 ms
64 bytes from 212.58.241.131: icmp_seq=9 ttl=245 time=83.969 ms
64 bytes from 212.58.241.131: icmp_seq=10 ttl=245 time=71.746 ms
^C
--- bbc.co.uk ping statistics ---
11 packets transmitted, 10 packets received, 9.1% packet loss
round-trip min/avg/max/stddev = 69.173/92.263/227.813/45.369 ms
19th:
20th:
Today:
Anyone else seeing this?
Can anyone at plusnet take a look?
Cheers,
Tom.
I've generally been quite impressed by my PlusNet 80/20 connection until recently.
Since joining late last year I had noticed on f8lure that the average RTT does instead slightly during peak hours (7 to midnight) however since the 19th I have been seeing an increase in minimum round trip time and an increase in packet loss.
Some pings to bbc.co.uk I just captured, these times are poor!
PING bbc.co.uk (212.58.241.131): 56 data bytes
64 bytes from 212.58.241.131: icmp_seq=0 ttl=245 time=76.174 ms
64 bytes from 212.58.241.131: icmp_seq=1 ttl=245 time=81.305 ms
Request timeout for icmp_seq 2
64 bytes from 212.58.241.131: icmp_seq=3 ttl=245 time=69.173 ms
64 bytes from 212.58.241.131: icmp_seq=4 ttl=245 time=79.343 ms
64 bytes from 212.58.241.131: icmp_seq=5 ttl=245 time=77.067 ms
64 bytes from 212.58.241.131: icmp_seq=6 ttl=245 time=76.598 ms
64 bytes from 212.58.241.131: icmp_seq=7 ttl=245 time=227.813 ms
64 bytes from 212.58.241.131: icmp_seq=8 ttl=245 time=79.440 ms
64 bytes from 212.58.241.131: icmp_seq=9 ttl=245 time=83.969 ms
64 bytes from 212.58.241.131: icmp_seq=10 ttl=245 time=71.746 ms
^C
--- bbc.co.uk ping statistics ---
11 packets transmitted, 10 packets received, 9.1% packet loss
round-trip min/avg/max/stddev = 69.173/92.263/227.813/45.369 ms
19th:
20th:
Today:
Anyone else seeing this?
Can anyone at plusnet take a look?
Cheers,
Tom.
Message 1 of 2
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1 REPLY 1
Re: Increase in RTT, Decrease in Throughput during peak traffic
21-02-2013 10:45 PM
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Some traceroutes:
[tom@s] [~] traceroute bbc.co.uk
traceroute to bbc.co.uk (212.58.241.131), 30 hops max, 60 byte packets
1 192.168.1.1 (192.168.1.1) 0.353 ms 0.427 ms 0.531 ms
2 lo0-central10.ptw-ag03.plus.net (195.166.128.197) 30.965 ms 31.347 ms 32.026 ms
3 link8-central10.ptw-gw02.plus.net (84.93.248.78) 74.440 ms 74.526 ms 74.570 ms
4 xe-7-2-0.ptw-cr02.plus.net (212.159.1.22) 80.910 ms 81.019 ms 60.660 ms
5 ae2.ptw-cr01.plus.net (195.166.129.4) 74.075 ms 74.092 ms 74.209 ms
6 kingston-gw.thdo.bbc.co.uk (212.58.239.6) 74.643 ms 75.517 ms 73.342 ms
7 * * *
8 ae1.er01.rbsov.bbc.co.uk (132.185.254.46) 75.364 ms 75.292 ms 75.731 ms
9 132.185.255.60 (132.185.255.60) 55.458 ms 55.503 ms 55.615 ms
10 virtual-vip.thdo.bbc.co.uk (212.58.241.131) 75.715 ms 77.027 ms 77.116 ms
[tom@s] [~] traceroute google.co.uk
traceroute to google.co.uk (74.125.132.94), 30 hops max, 60 byte packets
1 192.168.1.1 (192.168.1.1) 0.371 ms 0.590 ms 0.711 ms
2 lo0-central10.ptw-ag03.plus.net (195.166.128.197) 33.779 ms 35.884 ms 35.889 ms
3 link2-central10.ptw-gw02.plus.net (84.93.248.66) 74.293 ms 74.476 ms 74.743 ms
4 xe-7-2-0.ptw-cr02.plus.net (212.159.1.22) 74.466 ms 74.515 ms 74.731 ms
5 72.14.223.32 (72.14.223.32) 74.851 ms 74.871 ms 74.948 ms
6 209.85.252.186 (209.85.252.186) 75.027 ms 209.85.252.188 (209.85.252.188) 74.910 ms 67.660 ms
7 209.85.253.90 (209.85.253.90) 68.806 ms 209.85.253.92 (209.85.253.92) 48.842 ms 48.885 ms
8 72.14.232.134 (72.14.232.134) 72.600 ms 90.808 ms 66.249.95.173 (66.249.95.173) 52.795 ms
9 72.14.236.191 (72.14.236.191) 75.066 ms 75.111 ms 209.85.251.231 (209.85.251.231) 75.278 ms
10 * * *
11 wb-in-f94.1e100.net (74.125.132.94) 75.721 ms 73.291 ms 72.155 ms
traceroute to autotrader.co.uk (193.243.130.95), 30 hops max, 60 byte packets
1 192.168.1.1 (192.168.1.1) 0.386 ms 0.465 ms 0.568 ms
2 lo0-central10.ptw-ag03.plus.net (195.166.128.197) 43.755 ms 47.538 ms 50.472 ms
3 link10-central10.ptw-gw02.plus.net (84.93.248.82) 153.636 ms 153.807 ms 154.007 ms
4 xe-7-2-0.ptw-cr02.plus.net (212.159.1.22) 56.297 ms 38.660 ms 56.348 ms
5 ae2.ptw-cr01.plus.net (195.166.129.4) 56.062 ms 55.923 ms 56.173 ms
6 217.163.45.181 (217.163.45.181) 56.455 ms 57.341 ms 56.911 ms
7 ae-51-51.csw1.London1.Level3.net (4.69.139.88) 47.305 ms * *
8 ae-56-111.ebr1.London1.Level3.net (4.69.153.113) 63.652 ms ae-58-113.ebr1.London1.Level3.net (4.69.153.121) 47.387 ms ae-56-111.ebr1.London1.Level3.net (4.69.153.113) 63.765 ms
9 ae-4-4.car1.Manchesteruk1.Level3.net (4.69.133.101) 63.931 ms 64.058 ms 64.078 ms
10 ae-11-11.car2.Manchesteruk1.Level3.net (4.69.133.98) 65.374 ms 65.422 ms 70.638 ms
11 195.50.121.134 (195.50.121.134) 70.422 ms 69.345 ms 70.449 ms
[tom@s] [~] traceroute bbc.co.uk
traceroute to bbc.co.uk (212.58.241.131), 30 hops max, 60 byte packets
1 192.168.1.1 (192.168.1.1) 0.353 ms 0.427 ms 0.531 ms
2 lo0-central10.ptw-ag03.plus.net (195.166.128.197) 30.965 ms 31.347 ms 32.026 ms
3 link8-central10.ptw-gw02.plus.net (84.93.248.78) 74.440 ms 74.526 ms 74.570 ms
4 xe-7-2-0.ptw-cr02.plus.net (212.159.1.22) 80.910 ms 81.019 ms 60.660 ms
5 ae2.ptw-cr01.plus.net (195.166.129.4) 74.075 ms 74.092 ms 74.209 ms
6 kingston-gw.thdo.bbc.co.uk (212.58.239.6) 74.643 ms 75.517 ms 73.342 ms
7 * * *
8 ae1.er01.rbsov.bbc.co.uk (132.185.254.46) 75.364 ms 75.292 ms 75.731 ms
9 132.185.255.60 (132.185.255.60) 55.458 ms 55.503 ms 55.615 ms
10 virtual-vip.thdo.bbc.co.uk (212.58.241.131) 75.715 ms 77.027 ms 77.116 ms
[tom@s] [~] traceroute google.co.uk
traceroute to google.co.uk (74.125.132.94), 30 hops max, 60 byte packets
1 192.168.1.1 (192.168.1.1) 0.371 ms 0.590 ms 0.711 ms
2 lo0-central10.ptw-ag03.plus.net (195.166.128.197) 33.779 ms 35.884 ms 35.889 ms
3 link2-central10.ptw-gw02.plus.net (84.93.248.66) 74.293 ms 74.476 ms 74.743 ms
4 xe-7-2-0.ptw-cr02.plus.net (212.159.1.22) 74.466 ms 74.515 ms 74.731 ms
5 72.14.223.32 (72.14.223.32) 74.851 ms 74.871 ms 74.948 ms
6 209.85.252.186 (209.85.252.186) 75.027 ms 209.85.252.188 (209.85.252.188) 74.910 ms 67.660 ms
7 209.85.253.90 (209.85.253.90) 68.806 ms 209.85.253.92 (209.85.253.92) 48.842 ms 48.885 ms
8 72.14.232.134 (72.14.232.134) 72.600 ms 90.808 ms 66.249.95.173 (66.249.95.173) 52.795 ms
9 72.14.236.191 (72.14.236.191) 75.066 ms 75.111 ms 209.85.251.231 (209.85.251.231) 75.278 ms
10 * * *
11 wb-in-f94.1e100.net (74.125.132.94) 75.721 ms 73.291 ms 72.155 ms
traceroute to autotrader.co.uk (193.243.130.95), 30 hops max, 60 byte packets
1 192.168.1.1 (192.168.1.1) 0.386 ms 0.465 ms 0.568 ms
2 lo0-central10.ptw-ag03.plus.net (195.166.128.197) 43.755 ms 47.538 ms 50.472 ms
3 link10-central10.ptw-gw02.plus.net (84.93.248.82) 153.636 ms 153.807 ms 154.007 ms
4 xe-7-2-0.ptw-cr02.plus.net (212.159.1.22) 56.297 ms 38.660 ms 56.348 ms
5 ae2.ptw-cr01.plus.net (195.166.129.4) 56.062 ms 55.923 ms 56.173 ms
6 217.163.45.181 (217.163.45.181) 56.455 ms 57.341 ms 56.911 ms
7 ae-51-51.csw1.London1.Level3.net (4.69.139.88) 47.305 ms * *
8 ae-56-111.ebr1.London1.Level3.net (4.69.153.113) 63.652 ms ae-58-113.ebr1.London1.Level3.net (4.69.153.121) 47.387 ms ae-56-111.ebr1.London1.Level3.net (4.69.153.113) 63.765 ms
9 ae-4-4.car1.Manchesteruk1.Level3.net (4.69.133.101) 63.931 ms 64.058 ms 64.078 ms
10 ae-11-11.car2.Manchesteruk1.Level3.net (4.69.133.98) 65.374 ms 65.422 ms 70.638 ms
11 195.50.121.134 (195.50.121.134) 70.422 ms 69.345 ms 70.449 ms
Message 2 of 2
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