1. A method comprising: by an interconnection platform for a cloud exchange comprising a plurality of interconnection assets located within a data center, receiving a request from an application, wherein the data center includes respective ports of a switching fabric to which a plurality of networks connect, each of the networks comprising computing resources co-located within the data center, wherein a first network of the networks is associated with a cloud service provider and provides at least one cloud service, wherein a plurality of interconnection assets within the data center are configured to connect, using a first virtual circuit that comprises a path through the switching fabric of the data center, a second network of the networks with the first network associated with the cloud service provider to enable access by the second network to the at least one cloud service, and wherein the plurality of interconnection assets are configured to connect, using a second virtual circuit that comprises a path through the switching fabric of the data center, a third network of the networks with the first network associated with the cloud service provider to enable access by the third network to the at least one cloud service; and accessing, by the interconnection platform, a plurality of interconnection assets of the data center to satisfy the request.