SAP Knowledge Base Article - Preview

3549953 - TCP packet capture analysis for connection timeouts

Symptom

Your SAP system is suffering from connection timeouts and you have followed instructions to record TCP packet captures. Follow the guideline below to analyze the packet captures.

Disclaimer: The below information is meant to act as a guide only on how to approach and analyze packet captures based on our own limited SAP experience. For detailed and intricate analysis, you must consult your own networking team and network engineers.


"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."


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Environment

  • SAP NetWeaver
  • SAP Web Application Server for SAP S/4 HANA
  • ABAP PLATFORM - Application Server ABAP
  • SAP GUI for Windows

Product

ABAP platform all versions ; SAP NetWeaver all versions ; SAP Web Application Server for SAP S/4HANA all versions

Keywords

TCP packet capture, connection time outs, time_outs, Connection refused, TCP/IP Ports of All SAP Products, WSAEWOULDBLOCK, Resource temporarily unavailable, SAP GUI pop-up error, SAP target system IP address, SAP dispatcher port, local SAP GUI client IP address, SAP GUI client source port, Wireshark, “tcp.analysis.retransmission && tcp.flags, “tcp.analysis.retransmission && tcp.flags, SYN packet, TCP retransmissions, TCP/IP layer, partner '<SAP target system IP>:<target system dispatcher port>' not reached , KBA , BC-NET , Obsolete - Formerly used for network tests , BC-CST-DP , Dispatcher, Task Handler , BC-FES-GUI , SAP GUI for Windows , How To

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