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PPPSTATS(8)		    System Manager's Manual		   PPPSTATS(8)

NAME
       pppstats	- print	PPP statistics

SYNOPSIS
       pppstats	[ -a ] [ -v ] [	-r ] [ -z ] [ -c _count_ ] [ -w	_secs_ ] [ in-
       terface ]

DESCRIPTION
       The pppstats utility reports PPP-related	statistics at  regular	inter-
       vals 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	inter-
       face.

       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 ini-
	      tiated.	Without	this option, the second	and subsequent reports
	      show statistics for the time since the last report.

       -c count
	      Repeat the display count times.  If this option  is  not	speci-
	      fied,  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.

       -w wait
	      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.

       PACK   The total	number of packets received by this interface.

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

       VJUNC  The number of header-uncompressed	TCP packets received  by  this
	      interface.  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	recep-
	      tion by this interface because of	preceding  errors.   Only  re-
	      ported 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 com-
	      pressed 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
	      specified.

       NON-VJ The total	number of non-TCP packets transmitted from this	inter-
	      face.  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 op-
	      tion 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 com-
	      pression is applied.  Only reported when the -r option is	speci-
	      fied.

       When  the -z option is specified, pppstats instead displays the follow-
       ing fields, relating to the packet compression algorithm	 currently  in
       use.   If  packet compression is	not in use, these fields will all dis-
       play 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
       pppd(8)

				 26 June 1995			   PPPSTATS(8)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO

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