pppstats(8) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | COLOPHON

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

NAME         top

       pppstats - print PPP statistics

SYNOPSIS         top

       pppstats [ -a ] [ -d ] [ -v ] [ -r ] [ -z ] [ -c <count> ] [ -w
       <secs> ] [ interface ]

DESCRIPTION         top

       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.

       -d     Show data rate (kB/s) instead of bytes.

       -c count
              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.

       -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 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 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.

SEE ALSO         top

       pppd(8)

COLOPHON         top

       This page is part of the ppp (An implementation of the Point-to-
       Point Protocol (PPP)) project.  Information about the project can
       be found at ⟨https://ppp.samba.org/⟩.  If you have a bug report
       for this manual page, see
       ⟨https://github.com/paulusmack/ppp/issues⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨https://github.com/paulusmack/ppp⟩ on 2021-08-27.  (At that
       time, the date of the most recent commit that was found in the
       repository was 2021-08-07.)  If you discover any rendering
       problems in this HTML version of the page, or you believe there
       is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to
       man-pages@man7.org

                              26 June 1995                   PPPSTATS(8)

Pages that refer to this page: pppd(8)