| 摘要 |
Systems and methods for transmitting content to a client via a communication network are provided. According to one embodiment, a system includes a content server, an insertion server and a policy server. The content server stores and selects substitute or supplemental content. The insertion server monitors client traffic, detects client TCP/IP requests or destination TCP/IP responses and sends the selected substitute or supplemental content retrieved from the content server to the client in lieu of or in addition to content requested by the client TCP/IP requests or provided by the destination TCP/IP responses. The policy server provides instructions to the insertion server with respect to timing of detecting the client TCP/IP requests or destination TCP/IP responses and a delay associated with completing the client TCP/IP requests or destination TCP/IP responses. The system operates independently of respective destinations of the client TCP/IP requests and respective sources of the destination TCP/IP responses.
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