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
28 utility reports PPP\-related statistics at regular intervals for the
29 specified PPP interface. If the interface is unspecified, it will
31 The display is split horizontally
32 into input and output sections containing columns of statistics
33 describing the properties and volume of packets received and
34 transmitted by the interface.
36 The options are as follows:
39 Display absolute values rather than deltas. With this option, all
40 reports show statistics for the time since the link was initiated.
41 Without this option, the second and subsequent reports show statistics
42 for the time since the last report.
47 times. If this option is not specified, the default repeat count is 1
50 option is not specified, otherwise infinity.
53 Display additional statistics summarizing the compression ratio
54 achieved by the packet compression algorithm in use.
57 Display additional statistics relating to the performance of the Van
58 Jacobson TCP header compression algorithm.
63 seconds between each display. If this option is not specified, the
64 default interval is 5 seconds.
67 Instead of the standard display, show statistics indicating the
68 performance of the packet compression algorithm in use.
70 The following fields are printed on the input side when the
75 The total number of bytes received by this interface.
78 The total number of packets received by this interface.
81 The number of header-compressed TCP packets received by this interface.
84 The number of header-uncompressed TCP packets received by this
85 interface. Not reported when the
90 The number of corrupted or bogus header-compressed TCP packets
91 received by this interface. Not reported when the
96 The number of VJ header-compressed TCP packets dropped on reception by
97 this interface because of preceding errors. Only reported when the
102 The total number of non-TCP packets received by this interface. Only
108 The compression ratio achieved for received packets by the
109 packet compression scheme in use, defined as the uncompressed size
110 divided by the compressed size.
111 Only reported when the
116 The total number of bytes received, after decompression of compressed
117 packets. Only reported when the
121 The following fields are printed on the output side:
124 The total number of bytes transmitted from this interface.
127 The total number of packets transmitted from this interface.
130 The number of TCP packets transmitted from this interface with
131 VJ-compressed TCP headers.
134 The number of TCP packets transmitted from this interface with
135 VJ-uncompressed TCP headers.
136 Not reported when the
141 The total number of non-TCP packets transmitted from this interface.
142 Not reported when the
147 The number of searches for the cached header entry for a VJ header
148 compressed TCP packet. Only reported when the
153 The number of failed searches for the cached header entry for a
154 VJ header compressed TCP packet. Only reported when the
159 The compression ratio achieved for transmitted packets by the
160 packet compression scheme in use, defined as the size
161 before compression divided by the compressed size.
162 Only reported when the
167 The total number of bytes to be transmitted, before packet compression
168 is applied. Only reported when the
176 instead displays the following fields, relating to the packet
177 compression algorithm currently in use. If packet compression is not
178 in use, these fields will all display zeroes. The fields displayed on
182 The number of bytes of compressed packets received.
185 The number of compressed packets received.
187 .B INCOMPRESSIBLE BYTE
188 The number of bytes of incompressible packets (that is, those which
189 were transmitted in uncompressed form) received.
191 .B INCOMPRESSIBLE PACK
192 The number of incompressible packets received.
195 The recent compression ratio for incoming packets, defined as the
196 uncompressed size divided by the compressed size (including both
197 compressible and incompressible packets).
199 The fields displayed on the output side are:
202 The number of bytes of compressed packets transmitted.
205 The number of compressed packets transmitted.
207 .B INCOMPRESSIBLE BYTE
208 The number of bytes of incompressible packets transmitted (that is,
209 those which were transmitted in uncompressed form).
211 .B INCOMPRESSIBLE PACK
212 The number of incompressible packets transmitted.
215 The recent compression ratio for outgoing packets.