| 摘要 |
There is provided a method of processing requests for target node identification data received from a first node of a data network at a second node of the data network, said first node processin g user requests, said method comprising the following steps: a) storing, in a data store accessible by said second node, target no de identification data for a set of a plurality of target nodes, each target node of said set being interchangeably useable by said first nod e to service a user request; b) receiving, at said second node, a plurality of similar requests from the first node, each one of said similar requests relating to said set of target nodes; c) in response to a first said similar request, selecting a first selection of one or more target nodes of said set and transmitting data identifying said first selection to said first node; d) in response to a second said similar request, selecting a second selection of one or more target nodes of said set and transmitting data identifying said second selection to said first node, wherein said second selection includes at least one target node which is not included in said first selection.
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