I was asked...
> What is traffic(1c) ?  :)

It was something a bit like "top" for network traffic.
Here is the man page for it.

Enjoy!
Gordon



TRAFFIC(1C)               USER COMMANDS               TRAFFIC(1C)



NAME
     traffic - SunView program to display Ethernet traffic

SYNOPSIS
     traffic [ -h host ] [ -s subwindows ]

AVAILABILITY
     This command is available when both the Networking  and  the
     SunView  User's  software  options  are installed.  Refer to
     Installing SunOS 4.1  for  information  on  how  to  install
     optional software.

DESCRIPTION
     traffic graphically  displays  ethernet  traffic.   It  gets
     statistics  from  etherd(8C),  running on machine host.  The
     tool is divided into subwindows,  each  giving  a  different
     view of network traffic.

OPTIONS
     -h host        Specify a host from which to get  statistics.
                    The default value of host is the machine that
                    traffic is running on.

     -s subwindows  Specify the number of subwindows  to  display
                    initially.   The  default value of subwindows
                    is 1.

SUBWINDOWS
     To the right of each subwindow is a panel that selects  what
     the  subwindow  is  viewing.  When Size is checked, than the
     size distribution of packets is  displayed.   Proto  is  for
     protocol, Src is for source of packet, and Dst is for desti-
     nation of packet.  Since it is not possible to show all pos-
     sible  sources,  when  Src  is  selected, only the 8 highest
     sources are displayed (and similarly for Dst ).

     For each of these choices, the distribution is displayed  by
     a  histogram.   The  panel  above  each  subwindow  controls
     characteristics of the histograms.  At the left of the panel
     is  a  shaded square, corresponding to one of the two shades
     of bars in the histogram.   You  can  switch  the  shade  by
     either  clicking  on  the  square  with  the left button, or
     bringing up a menu over the square with the right mouse but-
     ton.   When  the  light  colored square is visible, then the
     slider in the center of the panel  controls  how  often  the
     light  colored  bars  are  updated.  When the dark square is
     visible, then the slider refers to the dark bars of the his-
     togram.   To  the  right  of  the  slider is a choice of Abs
     versus Rel.  This selects whether the height of  the  histo-
     gram  is Absolute in packets per second, or Relative in per-
     cent of total packets on the ethernet.  Next  in  the  panel
     are  three  small  horizontal bars.  When selected (that is,



Sun Release 4.1   Last change: 21 December 1987                 1






TRAFFIC(1C)               USER COMMANDS               TRAFFIC(1C)



     when a check mark appears to the left of the three bars),  a
     horizontal  grid appears on the histogram.  Finally the but-
     ton marked Delete Me will delete the subwindow.

     The right hand panel also has a  choice  for  Load  Load  is
     represented  as a strip chart, rather than a histogram.  The
     maximum value of the graph represents a load of  100%,  that
     is  10  megabits  per  second on the ethernet.  When Load is
     selected, there is only one slider, and no  Rel  versus  Abs
     choice.

     At the very top  of  the  tool  is  a  panel  that  contains
     filters,  as well as a Split button that splits the tool and
     creates a new subwindow, and a Quit button  that  exits  the
     tool.   The  filters  apply  to  all the subwindows.  When a
     filter is selected, a check mark appears to the left of  the
     word  Filter.   There  can be more than one filter active at
     the same time.  The meaning of each filter  is  as  follows.
     Src  is a host or net, which can be specified either by name
     or address (similarly for Dst).  Proto is  an  ip  protocol,
     and  can  either  be a name (such as udp, icmp) or a number.
     Lnth is either a  packet  length,  or  a  range  of  lengths
     separated by a dash.

SEE ALSO
     etherd(8C)

BUGS
     If multiple copies of traffic are using  the  same  copy  of
     etherd,  and  one  of  them  invokes  a filter, then all the
     copies of traffic will be filtered.
























Sun Release 4.1   Last change: 21 December 1987                 2