dstat
- Combines vmstat, iostat, ifstat, netstat information and more
iftop
- Amazing network bandwidth utility to analyse what is really happening on your eth
netio
- Measures the net throughput of a network via TCP/IP
inq
- CLI troubleshooting utility that displays info on storage, typically Symmetrix. By default, INQ returns the device name, Symmetrix ID, Symmetrix LUN, and capacity.
send_arp
- Sends out an arp broadcast on the specified network device (defaults to eth0), reporting an old and new IP address mapping to a MAC address.
EtherApe
- is a graphical network monitor for Unix modeled after etherman. Featuring link layer, IP and TCP modes, it displays network activity graphically.
iptraf
- An IP traffic monitor that shows information on the IP traffic passing over your network.
More details:
http://felipeferreira.net/?p=1194