Monitoring the network subsystem (MCP Series)

The best two performance counters to use when monitoring the network subsystem of a computer are:

• TCPv4 - Segments/Sec
• Network Interface - Bytes Total/Sec

TCPv4 - Segments/Sec monitors the number of bytes that pass the network interface using the TCP protocol and Network Interface - Bytes Total/Sec monitors the number of bytes that pass a network interface.