1 .TH PPPSTATS 8 "26 June 1995"
3 pppstats \- print PPP statistics
29 utility reports PPP\-related statistics at regular intervals for the
30 specified PPP interface. If the interface is unspecified, it will
32 The display is split horizontally
33 into input and output sections containing columns of statistics
34 describing the properties and volume of packets received and
35 transmitted by the interface.
37 The options are as follows:
40 Display absolute values rather than deltas. With this option, all
41 reports show statistics for the time since the link was initiated.
42 Without this option, the second and subsequent reports show statistics
43 for the time since the last report.
46 Show data rate (kB/s) instead of bytes.
51 times. If this option is not specified, the default repeat count is 1
54 option is not specified, otherwise infinity.
57 Display additional statistics summarizing the compression ratio
58 achieved by the packet compression algorithm in use.
61 Display additional statistics relating to the performance of the Van
62 Jacobson TCP header compression algorithm.
67 seconds between each display. If this option is not specified, the
68 default interval is 5 seconds.
71 Instead of the standard display, show statistics indicating the
72 performance of the packet compression algorithm in use.
74 The following fields are printed on the input side when the
79 The total number of bytes received by this interface.
82 The total number of packets received by this interface.
85 The number of header-compressed TCP packets received by this interface.
88 The number of header-uncompressed TCP packets received by this
89 interface. Not reported when the
94 The number of corrupted or bogus header-compressed TCP packets
95 received by this interface. Not reported when the
100 The number of VJ header-compressed TCP packets dropped on reception by
101 this interface because of preceding errors. Only reported when the
106 The total number of non-TCP packets received by this interface. Only
112 The compression ratio achieved for received packets by the
113 packet compression scheme in use, defined as the uncompressed size
114 divided by the compressed size.
115 Only reported when the
120 The total number of bytes received, after decompression of compressed
121 packets. Only reported when the
125 The following fields are printed on the output side:
128 The total number of bytes transmitted from this interface.
131 The total number of packets transmitted from this interface.
134 The number of TCP packets transmitted from this interface with
135 VJ-compressed TCP headers.
138 The number of TCP packets transmitted from this interface with
139 VJ-uncompressed TCP headers.
140 Not reported when the
145 The total number of non-TCP packets transmitted from this interface.
146 Not reported when the
151 The number of searches for the cached header entry for a VJ header
152 compressed TCP packet. Only reported when the
157 The number of failed searches for the cached header entry for a
158 VJ header compressed TCP packet. Only reported when the
163 The compression ratio achieved for transmitted packets by the
164 packet compression scheme in use, defined as the size
165 before compression divided by the compressed size.
166 Only reported when the
171 The total number of bytes to be transmitted, before packet compression
172 is applied. Only reported when the
180 instead displays the following fields, relating to the packet
181 compression algorithm currently in use. If packet compression is not
182 in use, these fields will all display zeroes. The fields displayed on
186 The number of bytes of compressed packets received.
189 The number of compressed packets received.
191 .B INCOMPRESSIBLE BYTE
192 The number of bytes of incompressible packets (that is, those which
193 were transmitted in uncompressed form) received.
195 .B INCOMPRESSIBLE PACK
196 The number of incompressible packets received.
199 The recent compression ratio for incoming packets, defined as the
200 uncompressed size divided by the compressed size (including both
201 compressible and incompressible packets).
203 The fields displayed on the output side are:
206 The number of bytes of compressed packets transmitted.
209 The number of compressed packets transmitted.
211 .B INCOMPRESSIBLE BYTE
212 The number of bytes of incompressible packets transmitted (that is,
213 those which were transmitted in uncompressed form).
215 .B INCOMPRESSIBLE PACK
216 The number of incompressible packets transmitted.
219 The recent compression ratio for outgoing packets.