1pppstats(1M) System Administration Commands pppstats(1M)
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6 pppstats - print PPP statistics
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9 pppstats [-a] [-v] [-r] [-z] [-c <count>] [-w <secs>]
10 [interface]
11
14 The pppstats utility reports PPP-related statistics at regular inter‐
15 vals for the specified PPP interface. If the interface is unspecified,
16 pppstats defaults to sppp0. The display is split horizontally into
17 input and output sections containing columns of statistics describing
18 the properties and volume of packets received and transmitted by the
19 interface.
20
22 The pppstats options are:
23 -a Display absolute values rather than deltas. With this
25 option, all reports show statistics for the time elapsed
26 since the link was initiated. Without this option, the
27 second and subsequent reports show statistics for the time
28 since the last report.
29 -c count Repeat the display count times. If this option is not
32 specified, the default repeat count is 1 if the -w option
33 is not specified, otherwise infinity.
34 -r Display additional statistics summarizing the compression
37 ratio achieved by the packet compression algorithm in use.
38 -v Display additional statistics relating to the performance
41 of the Van Jacobson TCP header compression algorithm.
42 -w wait Pause wait seconds between each display. If this option
45 is not specified, the default interval is five seconds.
46 -z Instead of the standard display, show statistics indicat‐
49 ing the performance of the packet compression algorithm in
50 use.
51
54 The following fields are printed on the input side when the -z option
55 is not used:
56 IN Total number of bytes received by this interface.
58 PACK Total number of packets received by this interface.
61 VJCOMP Number of header-compressed TCP packets received by this
64 interface.
65 VJUNC Number of header-uncompressed TCP packets received by this
68 interface. Not reported when the -r option is specified.
69 VJERR Number of corrupted or bogus header-compressed TCP packets
72 received by this interface. Not reported when the -r option
73 is specified.
74 VJTOSS Number of VJ header-compressed TCP packets dropped on recep‐
77 tion by this interface because of preceding errors. Only
78 reported when the -v option is specified.
79 NON-VJ Total number of non-TCP packets received by this interface.
82 Only reported when the -v option is specified.
83 RATIO Compression ratio achieved for received packets by the
86 packet compression scheme in use, defined as the uncom‐
87 pressed size divided by the compressed size. Only reported
88 when the -r option is specified.
89 UBYTE Total number of bytes received, after decompression of com‐
92 pressed packets. Only reported when the -r option is speci‐
93 fied.
94 The following fields are printed on the output side:
98 OUT Total number of bytes transmitted from this interface.
100 PACK Total number of packets transmitted from this interface.
103 VJCOMP Number of TCP packets transmitted from this interface with
106 VJ-compressed TCP headers.
107 VJUNC Number of TCP packets transmitted from this interface with
110 VJ-uncompressed TCP headers. Not reported when the -r option
111 is specified.
112 NON-VJ Total number of non-TCP packets transmitted from this inter‐
115 face. Not reported when the -r option is specified.
116 VJSRCH Number of searches for the cached header entry for a VJ
119 header compressed TCP packet. Only reported when the -v
120 option is specified.
121 VJMISS Number of failed searches for the cached header entry for a
124 VJ header compressed TCP packet. Only reported when the -v
125 option is specified.
126 RATIO Compression ratio achieved for transmitted packets by the
129 packet compression scheme in use, defined as the size before
130 compression divided by the compressed size. Only reported
131 when the -r option is specified.
132 UBYTE Total number of bytes to be transmitted before packet com‐
135 pression is applied. Only reported when the -r option is
136 specified.
137 When the -z option is specified, pppstats displays the following fields
141 relating to the packet compression algorithm currently in use. If
142 packet compression is not in use, these fields display zeroes. The
143 fields displayed on the input side are:
144 COMPRESSED BYTE Number of bytes of compressed packets received.
146 COMPRESSED PACK Number of compressed packets received.
149 INCOMPRESSIBLE BYTE Number of bytes of incompressible packets (that
152 is, those which were transmitted in uncompressed
153 form) received.
154 INCOMPRESSIBLE PACK Number of incompressible packets received.
157 COMP RATIO Recent compression ratio for incoming packets,
160 defined as the uncompressed size divided by the
161 compressed size (including both compressible and
162 incompressible packets).
163 The fields displayed on the output side are:
167 COMPRESSED BYTE Number of bytes of compressed packets transmit‐
169 ted.
170 COMPRESSED PACK Number of compressed packets transmitted.
173 INCOMPRESSIBLE BYTE Number of bytes of incompressible packets
176 received; that is, those that were transmitted
177 by the peer in uncompressed form.
178 INCOMPRESSIBLE PACK Number of incompressible packets transmitted.
181 COMP RATIO Recent compression ratio for outgoing packets.
184
187 See attributes(5) for descriptions of the following attributes:
188 ┌─────────────────────────────┬─────────────────────────────┐
193 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
194 ├─────────────────────────────┼─────────────────────────────┤
195 │Availability │SUNWpppdu │
196 ├─────────────────────────────┼─────────────────────────────┤
197 │Interface Stability │Evolving │
198 └─────────────────────────────┴─────────────────────────────┘
199
201 pppd(1M), attributes(5)
202SunOS 5.11 4 May 2001 pppstats(1M)