pppstats(1M) System Administration Commands pppstats(1M)NAMEpppstats - print PPP statistics
SYNOPSISpppstats [-a] [-v] [-r] [-z] [-c <count>] [-w <secs>]
[interface]
DESCRIPTION
The pppstats utility reports PPP-related statistics at regular inter‐
vals for the specified PPP interface. If the interface is unspecified,
pppstats defaults to sppp0. 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.
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 initiated. 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 statistics indicat‐
ing the performance of the packet compression algorithm in
use.
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 interface.
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.
VJERR Number of corrupted or bogus header-compressed TCP packets
received by this interface. Not reported when the -r option
is specified.
VJTOSS Number of VJ header-compressed TCP packets dropped on recep‐
tion 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 uncom‐
pressed size divided by the compressed size. Only reported
when the -r option is specified.
UBYTE Total number of bytes received, after decompression of com‐
pressed packets. Only reported when the -r option is speci‐
fied.
The following fields are printed on the output side:
OUT Total number of bytes transmitted from this interface.
PACK Total number of packets transmitted from this interface.
VJCOMP Number of TCP packets transmitted from this interface with
VJ-compressed TCP headers.
VJUNC Number of TCP packets transmitted from this interface with
VJ-uncompressed TCP headers. Not reported when the -r option
is specified.
NON-VJ Total number of non-TCP packets transmitted from this inter‐
face. 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.
VJMISS 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 com‐
pression 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 display zeroes. The
fields displayed on the input side are:
COMPRESSED BYTE Number of bytes of compressed packets received.
COMPRESSED PACK Number of compressed packets received.
INCOMPRESSIBLE BYTE Number of bytes of incompressible packets (that
is, those which were transmitted in uncompressed
form) received.
INCOMPRESSIBLE 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:
COMPRESSED BYTE Number of bytes of compressed packets transmit‐
ted.
COMPRESSED PACK Number of compressed packets transmitted.
INCOMPRESSIBLE BYTE Number of bytes of incompressible packets
received; that is, those that were transmitted
by the peer in uncompressed form.
INCOMPRESSIBLE PACK Number of incompressible packets transmitted.
COMP RATIO Recent compression ratio for outgoing packets.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Availability │system/network/ppp │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Committed │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOpppd(1M), attributes(5)SunOS 5.11 4 May 2001 pppstats(1M)
