Why TCP Retransmissions Stall Industrial Camera Communication, and How to Isolate Them (archived 2026-07-27)

Key Points

• The aim is to understand the impact of TCP retransmissions on the communication of industrial cameras and to propose methods for isolation.
• Analysis of TCP retransmissions and their causes
• Review of relevant parameters including RTO and RFC1323 timestamps
• Use of Wireshark for packet monitoring and analysis
• TCP retransmissions can cause several seconds of communication stalls in industrial cameras.
• Identified packet loss and high RTO values as critical factors contributing to stalls.
• Properly configuring RFC1323 timestamps can help mitigate communication issues.