pppstats(8)pppstats(8)NAMEpppstats - Print Point-to-Point Protocol (PPP) statistics
SYNOPSIS
/usr/sbin/pppstats [-a] [-v] [-r] [-c count] [-w secs] [interface] [-z]
OPTIONS
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. Repeats the display count times.
The default repeat count is 1 if the -w option is not specified, other‐
wise infinity. Displays the overall packet compression rate. The rate
value is between 0 and 1, with 0 meaning that the data is incompress‐
ible. Displays additional statistics, such as the number of packets
ignored (rejected by the VJ TCP header decompression code). Pauses
wait seconds between each display. If this option is not specified,
the default interval is 5 seconds. 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 inter‐
vals 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 proper‐
ties 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: The total number of bytes received by this interface. The
total number of packets received by this interface. The number of
header-compressed TCP packets received by this interface. The number
of header-uncompressed TCP packets received by this interface. Not
reported when the -r option is specified. The number of corrupted or
bogus header-compressed TCP packets received by this interface. Not
reported when the -r option is specified. The number of VJ header-com‐
pressed TCP packets dropped on reception by this interface because of
preceding errors. Only reported when the -v option is specified. The
total number of non-TCP packets received by this interface. Only
reported when the -v option is specified. 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. 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: The total number
of bytes transmitted from this interface. The total number of packets
transmitted from this interface. The number of TCP packets transmitted
from this interface with VJ-compressed TCP headers. The number of TCP
packets transmitted from this interface with VJ-uncompressed TCP head‐
ers. Not reported when the -r option is specified. The total number
of non-TCP packets transmitted from this interface. Not reported when
the -r option is specified. The number of searches for the cached
header entry for a VJ header compressed TCP packet. Only reported when
the -v option is specified. 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. 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. 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: The number of bytes of com‐
pressed packets received. The number of compressed packets received.
The number of bytes of incompressible packets (that is, those which
were transmitted in uncompressed form) received. The number of incom‐
pressible packets received. 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: The number of bytes of
compressed packets transmitted. The number of compressed packets
transmitted. The number of bytes of incompressible packets transmitted
(that is, those which were transmitted in uncompressed form). The num‐
ber of incompressible packets transmitted. The recent compression
ratio for outgoing packets.
SEE ALSO
Daemons: pppd(8)pppstats(8)