In this paper we present a Web Services-based approach to provide connections between optical domains. The architecture we describe here consists of a virtual topology service, an end-to-end connection service and an end-to-end interdomain negotiation service. All of them were implemented using the Web services technology. In this work we shortly introduce the architecture and focus mainly on the performance analysis. In order to validate our approach, a prototype that implements the services mentioned above has been developed and evaluated in terms of time, scalability and bandwidth consumption to establish end-to-end interdomain optical connections.