MAN page from RedHat Other ppp-man-2.3.3-4.i386.rpm
PPPSTATS
Section: Maintenance Commands (8)
Updated: 26 June 1995
Index NAME
pppstats - print PPP statistics
SYNOPSIS
pppstats[
-a] [
-v] [
-r] [
-z] [
-c<count>] [
-w<secs>] [
interface]
DESCRIPTION
The
pppstatsutility reports PPP-related statistics at regular intervals for thespecified PPP interface. If the interface is unspecified, it willdefault to ppp0.The display is split horizontallyinto input and output sections containing columns of statisticsdescribing the properties and volume of packets received andtransmitted by the interface.
The options are as follows:
- -a
- Display absolute values rather than deltas. With this option, allreports show statistics for the time since the link was initiated.Without this option, the second and subsequent reports show statisticsfor the time since the last report.
- -c count
- Repeat the displaycounttimes. If this option is not specified, the default repeat count is 1if the-woption is not specified, otherwise infinity.
- -r
- Display additional statistics summarizing the compression ratioachieved by the packet compression algorithm in use.
- -v
- Display additional statistics relating to the performance of the VanJacobson TCP header compression algorithm.
- -w wait
- Pausewaitseconds between each display. If this option is not specified, thedefault interval is 5 seconds.
- -z
- Instead of the standard display, show statistics indicating theperformance of the packet compression algorithm in use.
The following fields are printed on the input side when the-zoption 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 thisinterface. Not reported when the-roption is specified.
- VJERR
- The number of corrupted or bogus header-compressed TCP packetsreceived by this interface. Not reported when the-roption is specified.
- VJTOSS
- The number of VJ header-compressed TCP packets dropped on reception bythis interface because of preceding errors. Only reported when the-voption is specified.
- NON-VJ
- The total number of non-TCP packets received by this interface. Onlyreported when the-voption is specified.
- RATIO
- The compression ratio achieved for received packets by thepacket compression scheme in use, defined as the uncompressed sizedivided by the compressed size.Only reported when the-roption is specified.
- UBYTE
- The total number of bytes received, after decompression of compressedpackets. Only reported when the-roption 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 withVJ-compressed TCP headers.
- VJUNC
- The number of TCP packets transmitted from this interface withVJ-uncompressed TCP headers.Not reported when the-roption is specified.
- NON-VJ
- The total number of non-TCP packets transmitted from this interface.Not reported when the-roption is specified.
- VJSRCH
- The number of searches for the cached header entry for a VJ headercompressed TCP packet. Only reported when the-voption is specified.
- VJMISS
- The number of failed searches for the cached header entry for aVJ header compressed TCP packet. Only reported when the-voption is specified.
- RATIO
- The compression ratio achieved for transmitted packets by thepacket compression scheme in use, defined as the sizebefore compression divided by the compressed size.Only reported when the-roption is specified.
- UBYTE
- The total number of bytes to be transmitted, before packet compressionis applied. Only reported when the-roption is specified.
When the-zoption is specified,pppstatsinstead displays the following fields, relating to the packetcompression algorithm currently in use. If packet compression is notin use, these fields will all display zeroes. The fields displayed onthe 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 whichwere transmitted in uncompressed form) received.
- INCOMPRESSIBLE PACK
- The number of incompressible packets received.
- COMP RATIO
- The recent compression ratio for incoming packets, defined as theuncompressed size divided by the compressed size (including bothcompressible 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
pppd(8)
Index
- NAME
- SYNOPSIS
- DESCRIPTION
- SEE ALSO
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