Solaris Performance Monitoring with netstat

Show routing table, check if any un-needed route.
# netstat -nr

Show state of all TCP socket, check if any CLOSE_WAIT state, it may indicate unresponsive port. Check also if any FIN_WAIT state tcp/ip parameters have to be tuned because the connections are not being closed and they gets accumulating.
# netstat –aP tcp

Show state of all interfaces. Check if any collision and error receiving or sending packets. If collisions percentage greater than 5%, it indicate bottleneck network.
# netstat -i

I hope Oki, Julio, and Dimas helped with this article.

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