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 daily average inter-regional delay values (in ms) and percentage loss values for the BT Global Services IP Backbone Network.

		Intra-Europe			Transatlantic			Europe-USA
Date		Delay	Loss		Delay	Loss		Delay	Loss
02 Sep 2010		31 ms	0.0 %		80 ms	0.0 %		120 ms	0.3 %
01 Sep 2010		30 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
31 Aug 2010		30 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
30 Aug 2010		30 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
29 Aug 2010		30 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
28 Aug 2010		30 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
27 Aug 2010		30 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
26 Aug 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
25 Aug 2010		30 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
24 Aug 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.1 %
23 Aug 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
22 Aug 2010		30 ms	0.0 %		76 ms	0.0 %		109 ms	0.0 %
21 Aug 2010		30 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
20 Aug 2010		30 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %

		Europe-Latin			Europe-Asia
Date		Delay	Loss		Delay	Loss
02 Sep 2010		175 ms	0.0 %		224 ms	0.0 %
01 Sep 2010		176 ms	0.0 %		230 ms	0.0 %
31 Aug 2010		179 ms	0.0 %		225 ms	0.0 %
30 Aug 2010		182 ms	0.1 %		226 ms	0.0 %
29 Aug 2010		180 ms	0.0 %		226 ms	0.0 %
28 Aug 2010		180 ms	0.0 %		225 ms	0.0 %
27 Aug 2010		183 ms	0.1 %		226 ms	0.3 %
26 Aug 2010		181 ms	0.4 %		225 ms	0.0 %
25 Aug 2010		182 ms	0.1 %		227 ms	0.0 %
24 Aug 2010		181 ms	0.0 %		226 ms	0.0 %
23 Aug 2010		180 ms	0.0 %		224 ms	0.0 %
22 Aug 2010		179 ms	0.0 %		224 ms	0.0 %
21 Aug 2010		179 ms	0.1 %		228 ms	0.0 %
20 Aug 2010		181 ms	0.0 %		233 ms	0.0 %

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		High delay/loss
2) Further details of the measurements can be found by clicking on the "more information" button on the side navigation bar.