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pppstats(8)							  pppstats(8)



NAME

  pppstats - Print Point-to-Point Protocol (PPP) statistics

SYNOPSIS

  /usr/sbin/pppstats [-a] [-v] [-r] [-c	count] [-w secs] [interface] [-z]

OPTIONS

  -a  Displays 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.

  -c count
      Repeats the display count	times.	The default repeat count is 1 if the
      -w option	is not specified, otherwise infinity.

  -r  Displays the overall packet compression rate. The	rate value is between
      0	and 1, with 0 meaning that the data is incompressible.

  -v  Displays additional statistics, such as the number of packets ignored
      (rejected	by the VJ TCP header decompression code).

  -w wait
      Pauses wait seconds between each display.	 If this option	is not speci-
      fied, the	default	interval is 5 seconds.

  -z  Instead of the standard display, show statistics indicating the perfor-
      mance of the packet compression algorithm	in use.	See the	STATISTICS
      section for further information on this option.

DESCRIPTION

  The pppstats utility reports PPP-related statistics at regular intervals
  for the specified PPP	interface.  If 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.

  STATISTICS


  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.

  PACK
      The total	number of packets received by this interface.

  VJCOMP
      The number of header-compressed TCP packets received by this interface.

  VJUNC
      The number of header-uncompressed	TCP packets received by	this inter-
      face.  Not reported when the -r option is	specified.

  VJERR
      The number of corrupted or bogus header-compressed TCP packets received
      by this interface.  Not reported when the	-r option is specified.

  VJTOSS
      The number of VJ header-compressed TCP packets dropped on	reception by
      this interface because of	preceding errors.  Only	reported when the -v
      option is	specified.

  NON-VJ
      The total	number of non-TCP packets received by this interface.  Only
      reported when the	-v option is specified.

  RATIO
      The compression ratio achieved for received packets by the packet
      compression scheme in use, defined as the	uncompressed size divided by
      the compressed size.  Only reported when the -r option is	specified.

  UBYTE
      The total	number of bytes	received, after	decompression of compressed
      packets.	Only reported when the -r option is specified.

  The following	fields are printed on the output side:

  OUT The total	number of bytes	transmitted from this interface.

  PACK
      The total	number of packets transmitted from this	interface.

  VJCOMP
      The number of TCP	packets	transmitted from this interface	with VJ-
      compressed TCP headers.

  VJUNC
      The number of TCP	packets	transmitted from this interface	with VJ-
      uncompressed TCP headers.	 Not reported when the -r option is speci-
      fied.

  NON-VJ
      The total	number of non-TCP packets transmitted from this	interface.
      Not reported when	the -r option is specified.

  VJSRCH
      The number of searches for the cached header entry for a VJ header
      compressed TCP packet.  Only reported when the -v	option is specified.

  VJMISS
      The number of failed searches for	the cached header entry	for a VJ
      header compressed	TCP packet.  Only reported when	the -v option is
      specified.

  RATIO
      The compression ratio achieved for transmitted packets by	the packet
      compression scheme in use, defined as the	size before compression
      divided by the compressed	size. Only reported when the -r	option is
      specified.

  UBYTE
      The total	number of bytes	to be transmitted, before packet compression
      is applied.  Only	reported when the -r option is specified.

  When the -z option is	specified, pppstats displays the following fields,
  relating to the packet compression algorithm currently in use.  If packet
  compression is not in	use, these fields 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.

SEE ALSO

  Daemons: pppd(8)