Hi,
  I am a server support engineer.
Now I want to monitor the whole day or whole week network traffic throught the network port of my Sun Solaris server.
I tried to use the iftop and I found it can show the network traffic in real time , it is cool.
  But how can I re-direct the iftop output to a log file? So that I can analysis some network performace issue.
I have checked man page , did not find any clue.
  Hope for your reply.
  Thank you very much!
Best regards,
Robert WANG