February NSFNET T1 Usage by Service

Susan.M.Horvath at um.cc.umich.edu Susan.M.Horvath at um.cc.umich.edu
Mon Mar 2 23:43:20 UTC 1992


 
 
            NSFNET T1 Usage by Service
 
                   February 1992
 
 
  Service Type             % Packets   % Bytes
  ============             =========   =======
  File exchange                27         50 
  Networked mail               20         22 
  Interactive                  15          6 
  Name lookup                   7          4 
  Other TCP/UDP services       29         17 
  Non TCP/UDP services          2          1 
                              ---        --- 
                              100        100 
 
 
  The categories above are defined as follows:
  File exchange           ftp: data and control 
                          (tcp ports 20, 21)
  Networked mail          smtp, nntp, vmnet, uucp 
                          (tcp ports 25, 119, 175, 540)
  Interactive             telnet, finger, who, login
                          (tcp ports 23, 79, 513, udp port 513)
  Name lookup             domain name service
                          (udp port 53, tcp port 53)
  Other TCP/UDP services  all tcp/udp ports not included above
                          (e.g. irc, talk, X-windows, appletalk)
  Non-TCP/UDP services    icmp, egp, etc.
 
  More detailed information is available for anonymous FTP from
  NIS.NSF.NET (the Merit/NSFNET Information Services machine) 
  in the file NSF92-02.PORTS on the NSFSTATS directory.





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