traffic - SunView program to display Ethernet traffic
traffic [ -h host ] [ -s subwindows ]
This command is available when both the Networking and the SunView
User's software options are installed. Refer to for information on how
to install optional software.
traffic graphically displays ethernet traffic. It gets statistics from
etherd(8C), running on machine host. The tool is divided into subwin-
dows, each giving a different view of network traffic.
-h host Specify a host from which to get statistics. The
default value of host is the machine that traffic is
-s subwindows Specify the number of subwindows to display initially.
The default value of subwindows is 1.
To the right of each subwindow is a panel that selects what the subwin-
dow 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 destination of packet. Since it is not possible
to show all possible 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 his-
togram. 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 bring-
ing up a menu over the square with the right mouse button. 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
histogram. To the right of the slider is a choice of Abs versus Rel.
This selects whether the height of the histogram is Absolute in packets
per second, or Relative in percent of total packets on the ethernet.
Next in the panel are three small horizontal bars. When selected (that
is, when a check mark appears to the left of the three bars), a hori-
zontal grid appears on the histogram. Finally the button 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 ether-
net. When Load is selected, there is only one slider, and no Rel ver-
sus 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 sub-
windows. 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.
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
21 December 1987 TRAFFIC(1C)