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 Milan Node on 05 January 2009.

TO	Delay	Loss		TO	Delay	Loss
Amsterdam	18	0.0		Kuala Lumpur	238	0.1
Auckland	297	1.3		Lima	178	0.5
Bangkok	257	1.1		London	28	0.0
Barcelona	47	0.0		Los Angeles	172	0.0
Birmingham (uk)	31	0.0		Madley	33	0.0
Bletchley (uk)	30	0.0		Madrid	58	0.0
Bogota	193	0.5		Manchester (uk)	33	0.0
Brussels	42	0.0		Manila	373	1.1
Budapest	28	0.0		Mumbai	185	1.1
Buenos Aires	227	0.5		Munich	17	0.0
Caracas	NA	100		New York	97	0.0
Chicago	119	0.0		Paris	21	0.0
Copenhagen	49	0.0		Perth	361	0.1
Dallas	144	0.0		Prague	21	0.0
Dublin	44	0.0		Quito	193	0.5
Dusseldorf	15	0.0		Reading (uk)	30	0.0
Ealing (uk)	28	0.0		San Francisco	169	0.0
Edinburgh (uk)	39	0.0		Santiago	207	0.6
Frankfurt	11	0.0		Sao Paulo	207	0.7
Goonhilly	43	0.0		Singapore	NA	100
Gothenburg	44	0.0		Stockholm	33	0.0
Helsinki	40	0.0		Taipei	327	0.1
Hong Kong	259	0.1		Tokyo	291	1.3
Ilford (uk)	28	0.0		Vienna	33	0.0
Jakarta	241	0.1		Washington	102	0.0
Kingston (uk)	29	0.0		Zurich	18	0.0

Click on one of the links below to access daily 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	Madrid	Vienna
Copenhagen	Gothenburg	Manchester (uk)	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.