November NSFNET T3 Usage by Services

Tue Dec 15 01:01:28 UTC 1992

            NSFNET T3 Usage by Service

                    November 1992

  Service Type             % Packets   % Bytes
  ============             =========   =======
  File exchange                25         46
  Networked mail               16         18
  Interactive                  16          6
  Name lookup                   5          2
  Other TCP/UDP services       36         27
  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
  NIC.MERIT.EDU (the Merit NIC Services machine) in the file
  "t3-9211.ports" on the nsfnet/statistics/1992 directory.