This article presents a detailed real-world debugging case for GB28181 video streaming across asymmetric network links. The author systematically traces a cascade of failures: initial UDP packet loss leads to TCP connection drops, which then causes desynchronization between SIP signaling and RTP media channels, ultimately truncating recorded video. The debugging process spans packet capture analysis, middleware parameter tuning (WVP-GB28181 + ZLM), and application-layer logic reconstruction. For engineers working on video surveillance, SIP-based streaming, or real-time media systems, this case study provides practical insights into diagnosing multi-protocol failures in asymmetric network environments. The post is notable for its thoroughness and real-world grounding, making it a valuable reference for similar troubleshooting scenarios.
A deep-dive case study on debugging GB28181 video streaming failures caused by asymmetric bandwidth, covering UDP packet loss, TCP disconnections, and SIP/RTP timing issues.