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   21:00 - 22:00 Details
   20:00 - 21:00 Details
   19:00 - 20:00 Details
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Hourly Network Summary

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.

The following tables contain the recent hourly average inter-regional delay values (in ms) and percentage loss values for the BT Global Services IP Backbone Network.

    Intra-Europe   Transatlantic   Europe-USA
Hourly Period   Delay Loss   Delay Loss   Delay Loss
01:00 - 02:00   20 ms 0.0 %   78 ms 0.0 %   117 ms 0.0 %
00:00 - 01:00   20 ms 0.0 %   78 ms 0.0 %   118 ms 0.0 %
23:00 - 00:00   20 ms 0.0 %   78 ms 0.0 %   117 ms 0.0 %
22:00 - 23:00   20 ms 0.0 %   78 ms 0.0 %   117 ms 0.0 %
21:00 - 22:00   20 ms 0.0 %   78 ms 0.0 %   118 ms 0.0 %
20:00 - 21:00   20 ms 0.0 %   78 ms 0.0 %   118 ms 0.0 %
19:00 - 20:00   20 ms 0.0 %   78 ms 0.0 %   117 ms 0.0 %
18:00 - 19:00   20 ms 0.0 %   78 ms 0.0 %   118 ms 0.0 %
17:00 - 18:00   20 ms 0.0 %   78 ms 0.0 %   117 ms 0.0 %
16:00 - 17:00   20 ms 0.0 %   78 ms 0.0 %   117 ms 0.0 %
15:00 - 16:00   20 ms 0.0 %   78 ms 0.0 %   117 ms 0.0 %
14:00 - 15:00   20 ms 0.0 %   78 ms 0.0 %   118 ms 0.0 %
    Europe-Latin   Europe-Asia
Hourly Period   Delay Loss   Delay Loss
01:00 - 02:00   178 ms 16.7 %   214 ms 16.7 %
00:00 - 01:00   179 ms 16.8 %   214 ms 16.8 %
23:00 - 00:00   178 ms 16.7 %   214 ms 16.7 %
22:00 - 23:00   178 ms 16.7 %   214 ms 16.7 %
21:00 - 22:00   180 ms 17.3 %   214 ms 16.7 %
20:00 - 21:00   180 ms 16.8 %   214 ms 16.7 %
19:00 - 20:00   181 ms 16.8 %   214 ms 16.7 %
18:00 - 19:00   177 ms 16.7 %   214 ms 16.7 %
17:00 - 18:00   177 ms 16.7 %   214 ms 16.7 %
16:00 - 17:00   178 ms 16.7 %   214 ms 16.7 %
15:00 - 16:00   180 ms 16.9 %   213 ms 16.7 %
14:00 - 15:00   180 ms 16.8 %   213 ms 16.7 %

Detailed round-trip delay and loss statistics to/from a larger number of cities within Europe, North America, Asia Pacific, and Latin America are also available.

Notes
1) Each delay/loss value is colour-coded according to the acceptability of the result.
  Low delay/loss Colour Key High delay/loss  
2) Further details of the measurements can be found by clicking on the "more information" button on the side navigation bar.

  © 2014 British Telecommunications plc