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 Amsterdam Node between 22 Nov 2008 20:00 GMT and 22 Nov 2008 21:00 GMT.

TO	Delay	Loss		TO	Delay	Loss
Auckland	274	0.0		Lima	187	0.0
Bangkok	231	0.0		London	7	0.0
Barcelona	26	0.0		Los Angeles	152	0.0
Birmingham (uk)	11	0.0		Madley	12	0.0
Bletchley (uk)	10	0.0		Madrid	37	0.0
Bogota	163	0.0		Manchester (uk)	13	0.0
Brussels	4	0.0		Manila	320	0.0
Budapest	24	0.0		Milan	17	0.0
Buenos Aires	208	0.0		Mumbai	161	0.0
Caracas	139	0.0		Munich	23	0.0
Chicago	98	0.0		New York	75	0.0
Copenhagen	44	0.0		Paris	17	0.0
Dallas	123	0.0		Perth	330	0.0
Dublin	23	0.0		Prague	17	0.0
Dusseldorf	4	0.0		Quito	159	0.0
Ealing (uk)	8	0.0		Reading (uk)	10	0.0
Edinburgh (uk)	19	0.0		San Francisco	148	0.0
Frankfurt	7	0.0		Santiago	186	0.0
Goonhilly	19	0.0		Sao Paulo	186	0.0
Gothenburg	21	0.0		Singapore	NA	100
Helsinki	36	0.0		Stockholm	28	0.0
Hong Kong	239	0.0		Taipei	286	0.0
Ilford (uk)	8	0.0		Tokyo	257	0.0
Jakarta	216	0.0		Vienna	20	0.0
Kingston (uk)	9	0.0		Washington	81	0.0
Kuala Lumpur	214	0.0		Zurich	14	0.0

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

Barcelona	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.