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
12 Mar 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
11 Mar 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
10 Mar 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
09 Mar 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
08 Mar 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
07 Mar 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
06 Mar 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
05 Mar 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
04 Mar 2010		31 ms	0.0 %		76 ms	0.0 %		108 ms	0.0 %
03 Mar 2010		31 ms	0.0 %		77 ms	0.0 %		109 ms	0.0 %
02 Mar 2010		32 ms	0.0 %		78 ms	0.0 %		110 ms	0.0 %
01 Mar 2010		31 ms	0.0 %		79 ms	0.0 %		110 ms	0.0 %
28 Feb 2010		33 ms	0.0 %		79 ms	0.0 %		110 ms	0.0 %
27 Feb 2010		31 ms	0.0 %		79 ms	0.0 %		110 ms	0.0 %

		Europe-Latin			Europe-Asia
Date		Delay	Loss		Delay	Loss
12 Mar 2010		192 ms	0.0 %		230 ms	0.0 %
11 Mar 2010		193 ms	0.0 %		231 ms	0.0 %
10 Mar 2010		194 ms	0.1 %		229 ms	0.0 %
09 Mar 2010		192 ms	0.0 %		229 ms	0.0 %
08 Mar 2010		195 ms	0.1 %		228 ms	0.0 %
07 Mar 2010		190 ms	0.0 %		227 ms	0.0 %
06 Mar 2010		190 ms	0.5 %		227 ms	0.0 %
05 Mar 2010		192 ms	0.2 %		228 ms	0.0 %
04 Mar 2010		191 ms	0.1 %		226 ms	0.0 %
03 Mar 2010		193 ms	0.1 %		224 ms	0.0 %
02 Mar 2010		195 ms	0.1 %		223 ms	0.0 %
01 Mar 2010		194 ms	0.1 %		223 ms	0.0 %
28 Feb 2010		188 ms	1.0 %		223 ms	0.0 %
27 Feb 2010		198 ms	15.8 %		223 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.