Date: Tue, 16 Jan 1996 00:24:42 +1100 (EST) From: michael butler <imb@scgt.oz.au> To: current@freebsd.org Subject: PPP header compression ? Message-ID: <199601151324.AAA24819@asstdc.scgt.oz.au>
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This is curious .. kernel mode PPP is doing different things according to
who it's talking to ..
.. to a 2.1-stable box ..
percy:~ % /usr/sbin/pppstats
in pack comp uncomp err | out pack comp uncomp ip
2662016 49041 19786 24387 19 | 21019478 65016 40564 19672 4780
1022 24 12 12 0 | 16420 40 32 8 0
1163 31 16 15 0 | 28790 57 49 8 0
1172 31 16 14 0 | 22887 46 36 9 1
1195 22 7 14 0 | 10655 33 18 14 1
1195 26 11 15 0 | 14736 37 28 9 0
1197 22 7 15 0 | 10877 32 19 13 0
^C
.. to a Linux 1.2.?? kernel ..
percy:~ % /usr/sbin/pppstats 1
in pack comp uncomp err | out pack comp uncomp ip
20190840 380361 322335 29621 20 | 100222647 320016 271920 18881 29215
914 52 45 7 0 | 15893 39 37 2 0
685 49 48 1 0 | 14999 41 41 0 0
802 54 51 2 0 | 15650 43 41 1 1
703 51 50 1 0 | 17328 44 44 0 0
780 54 52 2 0 | 15756 42 42 0 0
905 53 45 8 0 | 19313 47 44 3 0
883 56 53 1 0 | 16578 47 45 0 2
763 51 48 3 0 | 15468 41 40 1 0
Even though the vast majority of traffic on both links is currently news,
the Linux box is seeing (and sending) far fewer packets with uncompressed
headers. What gives ? Why doesn't ours do that ? :-)
michael
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