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Our IP Performance WWW site contains the results of round-trip
delay and loss measurements which we perform between
key locations on our IP Backbone Network, and to key locations
on the networks of our strategic partners.
Several of the pages on this site are updated hourly and
thus reflect the current state of our network;
other pages are there to provide a more historical view
of the performance of our core network.
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The following tables contain the recent
monthly average inter-regional delay values
(in ms) and percentage loss values for the
BT Global Services IP Backbone Network.
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Intra-Europe |
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Transatlantic |
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Europe-USA |
| Month |
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Delay |
Loss |
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Delay |
Loss |
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Delay |
Loss |
| February 2010 |
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31 ms |
0.0 % |
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76 ms |
0.0 % |
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108 ms |
0.0 % |
| January 2010 |
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31 ms |
0.1 % |
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78 ms |
0.0 % |
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111 ms |
0.0 % |
| December 2009 |
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31 ms |
0.0 % |
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76 ms |
0.0 % |
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110 ms |
0.0 % |
| November 2009 |
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31 ms |
0.0 % |
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76 ms |
0.0 % |
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109 ms |
0.0 % |
| October 2009 |
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31 ms |
0.0 % |
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76 ms |
0.0 % |
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109 ms |
0.0 % |
| September 2009 |
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31 ms |
0.0 % |
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76 ms |
0.0 % |
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108 ms |
0.0 % |
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Europe-Latin |
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Europe-Asia |
| Month |
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Delay |
Loss |
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Delay |
Loss |
| February 2010 |
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194 ms |
0.8 % |
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227 ms |
0.0 % |
| January 2010 |
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186 ms |
4.2 % |
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229 ms |
0.0 % |
| December 2009 |
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172 ms |
7.1 % |
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228 ms |
0.0 % |
| November 2009 |
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187 ms |
0.1 % |
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232 ms |
0.4 % |
| October 2009 |
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184 ms |
0.2 % |
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228 ms |
0.1 % |
| September 2009 |
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184 ms |
0.1 % |
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229 ms |
0.0 % |
| Notes |
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1) Each delay/loss value is colour-coded
according to the acceptability of the result.
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Low delay/loss |
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High delay/loss |
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2) Further details of the measurements can be
found by clicking on the "more information"
button on the side navigation bar.
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