Monitoring network status
In this recipe, we are going to show how to monitor the status of network interfaces.
Getting ready
The commands used in this recipe have been performed on a CentOS Linux machine. The command output may vary in other Linux and Unix-based operating systems.
How to do it...
We are going to use the netstat
command with the -i
switch to display the status of network interfaces that are configured on the system. The following is the usage of the netstat
command:

How it works...
In the preceding output of the netstat -i
command, we can determine the number of packets a system transmits and receives on each network interface. The Ipkts
column determines the input packet count and the Okpts
column determines the output packet count. If the input packet count (value in the Ipkts
column) remains steady over a period of time, it means that the machine is not receiving network packets at all and the outcome suggests that it could possibly be a hardware failure on the network interface...