Index for Section 8

Alphabetical listing for P

Bottom of page

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
      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. 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
      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 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
      specified.

  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)

Index for Section 8

Alphabetical listing for P

Top of page