When troubleshooting performance issues it is often useful to identify how long flows have been idle.
At the command line, enter the following to give a summary of idle TCP and UDP flows;
traffic flow -tuo
You can tune idle TCP timeouts with the following command, the default is 0, as there is no timeout.
sys set tcpIdleTimeoutmins <numeric>
You can tune idle UDP timeouts with the following command, the default of 60 minutes is recommended.
sys set ipdgIdleTimeoutMins <numeric>
For non-tcp/udp flows, the following command is available, the default of 60 minutes is recommended.
sys set legacyIdleTimeoutMins <numeric>