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 Barcelona Node between 22 Nov 2008 21:00 GMT and 22 Nov 2008 22:00 GMT.

TO	Delay	Loss		TO	Delay	Loss
Amsterdam	26	0.0		Lima	217	0.0
Auckland	299	0.0		London	32	0.0
Bangkok	257	0.0		Los Angeles	185	0.0
Birmingham (uk)	38	0.0		Madley	38	0.0
Bletchley (uk)	35	0.0		Madrid	11	0.0
Bogota	NA	100		Manchester (uk)	40	0.0
Brussels	29	0.0		Manila	358	0.0
Budapest	50	0.0		Milan	42	0.0
Buenos Aires	249	0.0		Mumbai	185	0.0
Caracas	167	0.0		Munich	48	0.0
Chicago	131	0.0		New York	100	0.0
Copenhagen	69	0.0		Paris	41	0.0
Dallas	156	0.0		Perth	357	0.0
Dublin	48	0.0		Prague	43	0.0
Dusseldorf	29	0.0		Quito	192	0.0
Ealing (uk)	41	0.0		Reading (uk)	35	0.0
Edinburgh (uk)	46	0.0		San Francisco	181	0.0
Frankfurt	33	0.0		Santiago	215	0.0
Goonhilly	42	0.0		Sao Paulo	235	0.0
Gothenburg	46	0.0		Singapore	NA	100
Helsinki	61	0.0		Stockholm	54	0.0
Hong Kong	264	0.0		Taipei	310	0.0
Ilford (uk)	33	0.0		Tokyo	276	0.0
Jakarta	243	0.0		Vienna	44	0.0
Kingston (uk)	34	0.0		Washington	114	0.0
Kuala Lumpur	240	0.0		Zurich	39	0.0

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

Amsterdam	Dusseldorf	Ilford (uk)	Munich
Birmingham (uk)	Ealing (uk)	Kingston (uk)	Paris
Bletchley (uk)	Edinburgh (uk)	London	Prague
Brussels	Frankfurt	Madley	Reading (uk)
Budapest	Goonhilly	Madrid	Stockholm
Copenhagen	Gothenburg	Manchester (uk)	Vienna
Dublin	Helsinki	Milan	Zurich

Detailed round-trip delay and loss statistics to/from a larger number of cities within North America, 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.