Abstract :
[en] This paper introduces Cross-Layer Telemetry (CLT), a way to combine in-band telemetry (based on In-Situ OAM) and Application Performance Management (APM, based on distributed tracing) into a single monitoring tool providing a full network stack observability. Using CLT, APM traces are correlated with network telemetry information, providing a better view and faster root cause analysis in case of issue. In this paper, we describe the CLT implementation and discuss a use case demonstrating its efficiency. All CLT source code is available as open source.
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