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 table contains the average PoP-to-PoP round-trip delay values (in ms) and percentage loss values for the BT Global Services Washington Node between 22 Nov 2008 20:00 GMT and 22 Nov 2008 21:00 GMT.

TO	Delay	Loss		TO	Delay	Loss
Amsterdam	81	0.0		Ilford (uk)	76	0.0
Barcelona	115	0.0		Kingston (uk)	78	0.0
Birmingham (uk)	82	0.0		London	75	0.0
Bletchley (uk)	79	0.0		Madley	87	0.0
Brussels	89	0.0		Madrid	104	0.0
Budapest	110	0.0		Manchester (uk)	84	0.0
Copenhagen	131	0.0		Milan	102	0.0
Dublin	90	0.0		Munich	98	0.0
Dusseldorf	92	0.0		New York	75	0.0
Ealing (uk)	75	0.0		Paris	83	0.0
Edinburgh (uk)	93	0.0		Prague	105	0.0
Frankfurt	91	0.0		Reading (uk)	83	0.0
Goonhilly	87	0.0		Stockholm	114	0.0
Gothenburg	104	0.0		Vienna	110	0.0
Helsinki	122	0.0		Zurich	100	0.0

Click on one of the links below to access hourly round-trip delay and percentage loss statistics for other nodes within North America.

Chicago	Los Angeles	San Francisco
Dallas	New York

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

Click here to return to the network details for the whole BT Global Services IP Backbone.

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.