1 .\" @(#) $Id: pppstats.8,v 1.4 2004/11/13 12:22:49 paulus Exp $
2 .TH PPPSTATS 8 "26 June 1995"
4 pppstats \- print PPP statistics
30 utility reports PPP\-related statistics at regular intervals for the
31 specified PPP interface. If the interface is unspecified, it will
33 The display is split horizontally
34 into input and output sections containing columns of statistics
35 describing the properties and volume of packets received and
36 transmitted by the interface.
38 The options are as follows:
41 Display absolute values rather than deltas. With this option, all
42 reports show statistics for the time since the link was initiated.
43 Without this option, the second and subsequent reports show statistics
44 for the time since the last report.
47 Show data rate (kB/s) instead of bytes.
52 times. If this option is not specified, the default repeat count is 1
55 option is not specified, otherwise infinity.
58 Display additional statistics summarizing the compression ratio
59 achieved by the packet compression algorithm in use.
62 Display additional statistics relating to the performance of the Van
63 Jacobson TCP header compression algorithm.
68 seconds between each display. If this option is not specified, the
69 default interval is 5 seconds.
72 Instead of the standard display, show statistics indicating the
73 performance of the packet compression algorithm in use.
75 The following fields are printed on the input side when the
80 The total number of bytes received by this interface.
83 The total number of packets received by this interface.
86 The number of header-compressed TCP packets received by this interface.
89 The number of header-uncompressed TCP packets received by this
90 interface. Not reported when the
95 The number of corrupted or bogus header-compressed TCP packets
96 received by this interface. Not reported when the
101 The number of VJ header-compressed TCP packets dropped on reception by
102 this interface because of preceding errors. Only reported when the
107 The total number of non-TCP packets received by this interface. Only
113 The compression ratio achieved for received packets by the
114 packet compression scheme in use, defined as the uncompressed size
115 divided by the compressed size.
116 Only reported when the
121 The total number of bytes received, after decompression of compressed
122 packets. Only reported when the
126 The following fields are printed on the output side:
129 The total number of bytes transmitted from this interface.
132 The total number of packets transmitted from this interface.
135 The number of TCP packets transmitted from this interface with
136 VJ-compressed TCP headers.
139 The number of TCP packets transmitted from this interface with
140 VJ-uncompressed TCP headers.
141 Not reported when the
146 The total number of non-TCP packets transmitted from this interface.
147 Not reported when the
152 The number of searches for the cached header entry for a VJ header
153 compressed TCP packet. Only reported when the
158 The number of failed searches for the cached header entry for a
159 VJ header compressed TCP packet. Only reported when the
164 The compression ratio achieved for transmitted packets by the
165 packet compression scheme in use, defined as the size
166 before compression divided by the compressed size.
167 Only reported when the
172 The total number of bytes to be transmitted, before packet compression
173 is applied. Only reported when the
181 instead displays the following fields, relating to the packet
182 compression algorithm currently in use. If packet compression is not
183 in use, these fields will all display zeroes. The fields displayed on
187 The number of bytes of compressed packets received.
190 The number of compressed packets received.
192 .B INCOMPRESSIBLE BYTE
193 The number of bytes of incompressible packets (that is, those which
194 were transmitted in uncompressed form) received.
196 .B INCOMPRESSIBLE PACK
197 The number of incompressible packets received.
200 The recent compression ratio for incoming packets, defined as the
201 uncompressed size divided by the compressed size (including both
202 compressible and incompressible packets).
204 The fields displayed on the output side are:
207 The number of bytes of compressed packets transmitted.
210 The number of compressed packets transmitted.
212 .B INCOMPRESSIBLE BYTE
213 The number of bytes of incompressible packets transmitted (that is,
214 those which were transmitted in uncompressed form).
216 .B INCOMPRESSIBLE PACK
217 The number of incompressible packets transmitted.
220 The recent compression ratio for outgoing packets.