Merge branch 'main' into next

[mirror_iproute2.git] / man / man8 / tc.8

diff --git a/man/man8/tc.8 b/man/man8/tc.8
index 235216b6419483dfca927645f2f8b11552117826..7e9019f561ea506e81d5980b8ecbdd936ab2f663 100644 (file)
--- a/man/man8/tc.8
+++ b/man/man8/tc.8
@@ -77,9 +77,13 @@ tc \- show / manipulate traffic control settings
 .B tc
 .RI "[ " OPTIONS " ]"
 .RI "[ " FORMAT " ]"
-.B qdisc show [ dev
+.B qdisc { show | list } [ dev
 \fIDEV\fR
-.B ]
+.B ] [ root | ingress | handle
+\fIQHANDLE\fR
+.B | parent
+\fICLASSID\fR
+.B ] [ invisible ]
 .P
 .B tc
 .RI "[ " OPTIONS " ]"
@@ -254,6 +258,25 @@ Traffic control filter that matches every packet. See
 .BR tc-matchall (8)
 for details.
 
+.SH QEVENTS
+Qdiscs may invoke user-configured actions when certain interesting events
+take place in the qdisc. Each qevent can either be unused, or can have a
+block attached to it. To this block are then attached filters using the "tc
+block BLOCK_IDX" syntax. The block is executed when the qevent associated
+with the attachment point takes place. For example, packet could be
+dropped, or delayed, etc., depending on the qdisc and the qevent in
+question.
+
+For example:
+.PP
+.RS
+tc qdisc add dev eth0 root handle 1: red limit 500K avpkt 1K \\
+   qevent early_drop block 10
+.RE
+.RS
+tc filter add block 10 matchall action mirred egress mirror dev eth1
+.RE
+
 .SH CLASSLESS QDISCS
 The classless qdiscs are:
 .TP