System Administration Commands pppstats(1M)
NAME
pppstats - print P statistics
SYNOPSIS
pppstats [-a] [-v] [-r] [-z] [-c ] [-w ]
[interface]
DESCRIPTION
The pppstats utility reports P-related statistics at regu-
lar intervals for the specified P interface. If the inter-
face is unspecified, pppstats defaults to sppp0. The display
is split horizontally into input and output sections con-
taining columns of statistics describing the properties and
volume of packets received and transmitted by the interface.
OPTIONS
The pppstats options are:
-a Display absolute values rather than deltas.
With this option, all reports show statistics
for the time elapsed 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 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 five seconds.
-z Instead of the standard display, show statis-
tics indicating the performance of the packet
compression algorithm in use.
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System Administration Commands pppstats(1M)
EXTENDED DESCRIPTION
The following fields are printed on the input side when the
-z option is not used:
IN Total number of bytes received by this interface.
PACK Total number of packets received by this inter-
face.
VJCOMP Number of header-compressed TCP packets received
by this interface.
VJUNC Number of header-uncompressed TCP packets
received by this interface. Not reported when the
-r option is specified.
VJER Number of corrupted or bogus header-compressed
TCP packets received by this interface. Not
reported when the -r option is specified.
VJTOS 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 Total number of non-TCP packets received by this
interface. Only reported when the -v option is
specified.
RATIO 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 Total number of bytes received, after decompres-
sion of compressed packets. Only reported when
the -r option is specified.
The following fields are printed on the output side:
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System Administration Commands pppstats(1M)
OUT Total number of bytes transmitted from this inter-
face.
PACK Total number of packets transmitted from this
interface.
VJCOMP Number of TCP packets transmitted from this inter-
face with VJ-compressed TCP headers.
VJUNC Number of TCP packets transmitted from this inter-
face with VJ-uncompressed TCP headers. Not
reported when the -r option is specified.
NON-VJ Total number of non-TCP packets transmitted from
this interface. Not reported when the -r option is
specified.
VJSRCH Number of searches for the cached header entry for
a VJ header compressed TCP packet. Only reported
when the -v option is specified.
VJMIS 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 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 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 fol-
lowing fields relating to the packet compression algorithm
currently in use. If packet compression is not in use, these
fields display zeroes. The fields displayed on the input
side are:
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System Administration Commands pppstats(1M)
COMPRESED BYTE Number of bytes of compressed packets
received.
COMPRESED PACK Number of compressed packets
received.
INCOMPRESIBLE BYTE Number of bytes of incompressible
packets (that is, those which were
transmitted in uncompressed form)
received.
INCOMPRESIBLE PACK Number of incompressible packets
received.
COMP RATIO 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:
COMPRESED BYTE Number of bytes of compressed packets
transmitted.
COMPRESED PACK Number of compressed packets
transmitted.
INCOMPRESIBLE BYTE Number of bytes of incompressible
packets received; that is, those that
were transmitted by the peer in
uncompressed form.
INCOMPRESIBLE PACK Number of incompressible packets
transmitted.
COMP RATIO Recent compression ratio for outgoing
packets.
ATRIBUTES
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System Administration Commands pppstats(1M)
See attributes(5) for descriptions of the following attri-
butes:
ATRIBUTE TYPE ATRIBUTE VALUE
Availability SUNWpppdu
Interface Stability Evolving
SEE ALSO
pppd(1M), attributes(5)
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