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 Paris Node on 05 January 2009.

TO	Delay	Loss		TO	Delay	Loss
Amsterdam	17	0.0		Kuala Lumpur	236	0.0
Auckland	286	0.0		Lima	158	0.5
Bangkok	244	0.0		London	10	0.0
Barcelona	46	0.0		Los Angeles	164	0.0
Birmingham (uk)	20	0.0		Madley	28	0.0
Bletchley (uk)	12	0.0		Madrid	56	0.0
Bogota	183	0.4		Manchester (uk)	15	0.0
Brussels	20	0.0		Manila	390	0.0
Budapest	28	0.0		Milan	21	0.0
Buenos Aires	208	0.6		Mumbai	173	0.0
Caracas	NA	100		Munich	16	0.0
Chicago	100	0.0		New York	78	0.0
Copenhagen	48	0.0		Perth	366	0.0
Dallas	125	0.0		Prague	20	0.0
Dublin	39	0.0		Quito	184	0.5
Dusseldorf	14	0.0		Reading (uk)	19	0.0
Ealing (uk)	19	0.0		San Francisco	150	0.0
Edinburgh (uk)	28	0.0		Santiago	187	0.6
Frankfurt	10	0.0		Sao Paulo	188	0.5
Goonhilly	31	0.0		Singapore	NA	100
Gothenburg	43	0.0		Stockholm	32	0.0
Helsinki	39	0.0		Taipei	346	0.0
Hong Kong	260	0.0		Tokyo	289	0.0
Ilford (uk)	24	0.0		Vienna	32	0.0
Jakarta	239	0.0		Washington	83	0.0
Kingston (uk)	18	0.0		Zurich	17	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	Milan
Barcelona	Dusseldorf	Ilford (uk)	Munich
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.