In any support or implementation project, there will be situation where SAP BASIS consultant had to face network issues in SAP servers and had to prove to other infra-team as the trouble caused is due to network.
In order to trouble shoot network related issues in SAP servers, there is a standard way of trouble shooting as explained by SAP.
Here are the below SAP notes for the common network issues and their solutions.
SAP Note 1519484-How to analyze network disconnections shown in system log (BC transaction SM21)
SAP Note 21971 - Connection between SAP GUI and application server terminated
SAP Note 155147 - WinNT: Connection reset by peer
SAP Note 413330 - Network timeouts
SAP Note 516027 - Gateway error due to terminated TCP connection
If in case you need to perform advanced trouble shooting to narrow down the issue to the root cause, please follow the below steps.
SAP Note 500235 - Network Diagnosis with NIPING
With respect to the SAP Note 500235, there are 6 tests need to be performed with NIPING command, the are
1) Measuring network metrics (throughput and RTT)
2) Long LAN stability test
3) Long WAN test (stability)
4) Long WAN test (idle timeouts)
5) Short throughput/stability test
6) MTU test – with data Buffer sizes (500,1000,1400,1500,4000,10000&40000)
Based on the tests as per SAP note you can identify the root cause of the network issues in SAP.
If not able to identify even after this diagnosis then collect all the test results and post a message to SAP under BC-NET component. SAP will help you out in trouble shooting.
In order to trouble shoot network related issues in SAP servers, there is a standard way of trouble shooting as explained by SAP.
Here are the below SAP notes for the common network issues and their solutions.
SAP Note 1519484-How to analyze network disconnections shown in system log (BC transaction SM21)
SAP Note 21971 - Connection between SAP GUI and application server terminated
SAP Note 155147 - WinNT: Connection reset by peer
SAP Note 413330 - Network timeouts
SAP Note 516027 - Gateway error due to terminated TCP connection
If in case you need to perform advanced trouble shooting to narrow down the issue to the root cause, please follow the below steps.
SAP Note 500235 - Network Diagnosis with NIPING
With respect to the SAP Note 500235, there are 6 tests need to be performed with NIPING command, the are
1) Measuring network metrics (throughput and RTT)
2) Long LAN stability test
3) Long WAN test (stability)
4) Long WAN test (idle timeouts)
5) Short throughput/stability test
6) MTU test – with data Buffer sizes (500,1000,1400,1500,4000,10000&40000)
Based on the tests as per SAP note you can identify the root cause of the network issues in SAP.
If not able to identify even after this diagnosis then collect all the test results and post a message to SAP under BC-NET component. SAP will help you out in trouble shooting.
