Network bandwidth

To measure network activity, use the netstat command. The netstat command can:

  • Display active socket connections for each protocol
  • Display routing table information
  • Display a table of all network interfaces or a specified interface
  • Display summary statistics for each protocol

For information and recommendations using the netstat command, consult your operating system manual.

Other commands that can be used in addition to netstat are: ss (utility to investigate sockets), ip (show / manipulate routing, devices, policy routing and tunnels).

To monitor various network statistics including TCP info, TCP/UDP package counts, ICMP and OSPF information, Ethernet load info, node statistics, IP checksum errors use iptraf command (only available if iptraf rpm package is installed).