Repeat the display indefinitely every interval seconds. If no interval is specified, the default is 5 seconds.
-v
Verbose display of extra fields of information.
-r
Display all values in rate per second rather than amount per interval.
unit
Is number specifying the SLIP interface, or a SLIP interface name. The default unit is 0 for interface sl0.
By default, slstat displays the following information:
in
bytes received
out
bytes sent
pack
packets received or sent
comp
compressed packets received or sent
uncomp
uncompressed packets received or sent
unknwn
inbound packets of unknown type
toss
inbound packets tossed because of error
other
all other inbound or outbound ip packets
err
input or output errors
search
searches for connection state
miss
times we could not find a connection state
coll
collisions with end of clists. If you get many collisions (more than one or two a day) you probably do not have enough clists and you should increase nclist in param.c.