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author | oleg <oleg@FreeBSD.org> | 2009-06-26 19:49:06 +0000 |
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committer | oleg <oleg@FreeBSD.org> | 2009-06-26 19:49:06 +0000 |
commit | 0c8702bb1ed08e169ba083005abfff042017cf53 (patch) | |
tree | 8dc3b4a0d36dd81c913320765165f63bbb8ebeb7 /sbin/ipfw/ipfw.8 | |
parent | 12b7caa1dd2faf60b80c9332f9a8ddba08de6ef5 (diff) | |
download | FreeBSD-src-0c8702bb1ed08e169ba083005abfff042017cf53.zip FreeBSD-src-0c8702bb1ed08e169ba083005abfff042017cf53.tar.gz |
- 'burst' description rewritten.
Submitted by: Ben Kaduk
Approved by: re (kib)
Diffstat (limited to 'sbin/ipfw/ipfw.8')
-rw-r--r-- | sbin/ipfw/ipfw.8 | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/sbin/ipfw/ipfw.8 b/sbin/ipfw/ipfw.8 index 0299d68..0d08665 100644 --- a/sbin/ipfw/ipfw.8 +++ b/sbin/ipfw/ipfw.8 @@ -1944,13 +1944,18 @@ the granularity to 1ms or less). The default value is 0, meaning no delay. .Pp .It Cm burst Ar size -If the data rate exceeds the pipe bandwith limit -(and pipe was idle long enough), +If the data to be sent exceeds the pipe's bandwidth limit +(and the pipe was previously idle), up to .Ar size -bytes of data is allowed to bypass the +bytes of data are allowed to bypass the .Nm dummynet -scheduler (i.e. it will be sent without shaping), then transmission rate -will not exceed pipe bandwidth. Effective burst size calculated as follows: +scheduler, and will be sent as fast as the physical link allows. +Any additional data will be transmitted at the rate specified +by the +.Nm pipe +bandwidth. +The burst size depends on how long the pipe has been idle; +the effective burst size is calculated as follows: MAX( .Ar size , |