Diagnosing transport layer problems

To diagnose problems with the transport layer in your storage system, you can use the netdiag -t command.

Step

Enter the following command: netdiag -t

Example

A storage system whose TCP window size is smaller than the recommended value displays the following output:

Performing transport layer diagnostics.....
The TCP receive window advertised by CIFS client
10.10.10.10 is 8760. This is less than the recommended 
value of 32768 bytes. You should increase the TCP receive
buffer size for CIFS on the client. Press enter to continue.

Parent topic: How to diagnose network problems