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8.7 | TCP/IP Suite: Utilities |
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8.7.5 | How and when to use NETSTAT to test, validate, and troubleshoot IP connectivity |
NETSTAT is used to display the methods used by virtual circuits and network interfaces. NETSTAT is available for troubleshooting specific TCP/IP issues by displaying protocol statistics and current TCP/IP connections. This utility is used to show the three-step handshake method when establishing and disconnecting network sessions. ![]() NETSTAT displays a list of protocol types, local addresses and port information, remote access and port information, and current state.The information displayed also explains what connections are open and in progress. Variations of the netstat command are shown in the following:
NETSTAT enables the user to
troubleshoot TCP/IP based connections by monitoring TCP protocol
activity (by using netstat -a). Error counts and Ethernet interfaces
can also be monitored using netstat.
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