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With the development of software-defined network and programmable data-plane technology, in-band network telemetry has emerged. In-band network telemetry technology collects hop-by-hop network status information through business packets to achieve end-to-end visualization of network services. In-band network telemetry uses the data plane to directly drive the network measurement process, subverting the research idea of traditional network measurement that treats network switching device as an intermediate black box. In-band network telemetry technology has the advantages of flexible programming, strong real-time, less noise and path-level network status perception, etc. It has become an emerging representative of network telemetry technology and has received extensive attention from academia and industry.

In this survey, we conduct a comprehensive investigation on the situation of in-band …