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description
The
pppstats utility reports PPP-related statistics
at regular intervals for the specified PPP interface. If the
interface is unspecified, it will default to ppp0. The
display is split horizontally into input and output sections
containing columns of statistics describing the properties
and volume of packets received and transmitted by the
interface.
The options are
as follows:
-a
Display absolute values rather than deltas. With this
option, all reports show statistics for the time since the
link was initiated. Without this option, the second and
subsequent reports show statistics for the time since the
last report.
-ccount
Repeat the display count
times. If this option is not specified, the default repeat
count is 1 if the -w option is not specified,
otherwise infinity.
-r
Display additional statistics summarizing the
compression ratio achieved by the packet compression
algorithm in use.
-v
Display additional statistics relating to the
performance of the Van Jacobson TCP header compression
algorithm.
-wwait
Pause wait seconds
between each display. If this option is not specified, the
default interval is 5 seconds.
-z
Instead of the standard display, show statistics
indicating the performance of the packet compression
algorithm in use.
The following
fields are printed on the input side when the
-z option is not used:
in
The total number of bytes received by this interface.
The following fields are printed on the output side:
out
The total number of bytes transmitted from this interface.
When the -z option is specified, pppstats instead
displays the following fields, relating to the packet compression
algorithm currently in use. If packet compression is not in use,
these fields will all display zeroes. The fields displayed on the
input side are:
COMPRESSED BYTE
The number of bytes of compressed packets received.
COMPRESSED PACK
The number of compressed packets received.
INCOMPRESSIBLE BYTE
The number of bytes of incompressible packets (that is, those
which were transmitted in uncompressed form) received.
INCOMPRESSIBLE PACK
The number of incompressible packets received.
COMP RATIO
The recent compression ratio for incoming packets, defined as the
uncompressed size divided by the compressed size (including both
compressible and incompressible packets).
The fields displayed on the output side are:
COMPRESSED BYTE
The number of bytes of compressed packets transmitted.
COMPRESSED PACK
The number of compressed packets transmitted.
INCOMPRESSIBLE BYTE
The number of bytes of incompressible packets transmitted (that
is, those which were transmitted in uncompressed form).
INCOMPRESSIBLE PACK
The number of incompressible packets transmitted.
COMP RATIO
The recent compression ratio for outgoing packets.