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 Madrid Node between 09 Sep 2010 08:00 GMT and 09 Sep 2010 09:00 GMT.

TO	Delay	Loss		TO	Delay	Loss
Amsterdam	39	0.0		Kingston (uk)	40	0.0
Auckland	297	0.0		Lima	208	0.0
Bangkok	256	0.0		London	38	0.0
Barcelona	15	0.0		Los Angeles	177	0.0
Birmingham (uk)	43	0.0		Madley	43	0.0
Bletchley (uk)	40	0.0		Manchester (uk)	36	0.0
Bogota	187	0.0		Manila	276	0.0
Brussels	43	0.0		Milan	58	0.0
Budapest	64	0.0		Mumbai	172	0.0
Buenos Aires	229	0.0		Munich	61	0.0
Caracas	170	0.0		New York	99	0.0
Chicago	120	0.0		Paris	58	0.0
Copenhagen	57	0.0		Prague	57	0.0
Dallas	144	0.0		Quito	202	0.0
Dublin	44	0.0		Reading (uk)	33	0.0
Dusseldorf	43	0.0		San Francisco	172	0.0
Ealing (uk)	31	0.0		Santiago	206	0.0
Edinburgh (uk)	50	0.0		Sao Paulo	208	0.0
Frankfurt	47	0.0		Singapore	230	0.0
Goonhilly	44	0.0		Stockholm	68	0.0
Gothenburg	61	0.0		Taipei	277	0.0
Helsinki	76	0.0		Vienna	59	0.0
Hong Kong	264	0.0		Washington	103	0.0
Ilford (uk)	38	0.0		Zurich	54	0.0
Jakarta	252	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	Dublin	Helsinki	Munich
Barcelona	Dusseldorf	Ilford (uk)	Paris
Birmingham (uk)	Ealing (uk)	Kingston (uk)	Prague
Bletchley (uk)	Edinburgh (uk)	London	Reading (uk)
Brussels	Frankfurt	Madley	Stockholm
Budapest	Goonhilly	Manchester (uk)	Vienna
Copenhagen	Gothenburg	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.