1Match-all classifier in tc(8)        Linux       Match-all classifier in tc(8)
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NAME

6       matchall - traffic control filter that matches every packet
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SYNOPSIS

9       tc  filter ... matchall [ skip_sw | skip_hw  ] [ action ACTION_SPEC ] [
10               classid CLASSID ]
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DESCRIPTION

13       The matchall filter allows to classify every packet that flows  on  the
14       port and run a action on it.
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OPTIONS

17       action ACTION_SPEC
18              Apply  an  action from the generic actions framework on matching
19              packets.
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21       classid CLASSID
22              Push matching packets into the class identified by CLASSID.
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24       skip_sw
25              Do not process filter by software. If hardware  has  no  offload
26              support  for  this  filter, or TC offload is not enabled for the
27              interface, operation will fail.
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29       skip_hw
30              Do not process filter by hardware.
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EXAMPLES

33       To create ingress mirroring from port eth1 to port eth2:
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35              tc qdisc  add dev eth1 handle ffff: ingress
36              tc filter add dev eth1 parent ffff:           \
37                      matchall skip_sw                      \
38                      action mirred egress mirror           \
39                      dev eth2
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41       The first command creates an ingress qdisc with handle ffff: on  device
42       eth1  where  the  second command attaches a matchall filters on it that
43       mirrors the packets to device eth2.
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45       To create egress mirroring from port eth1 to port eth2:
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47              tc qdisc add dev eth1 handle 1: root prio
48              tc filter add dev eth1 parent 1:               \
49                      matchall skip_sw                       \
50                      action mirred egress mirror            \
51                      dev eth2
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53       The first command creates an egress qdisc with handle 1: that  replaces
54       the  root  qdisc  on  device  eth1  where the second command attaches a
55       matchall filters on it that mirrors the packets to device eth2.
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57       To sample one of every 100 packets flowing into interface eth0 to psam‐
58       ple group 12:
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60              tc qdisc add dev eth0 handle ffff: ingress
61              tc filter add dev eth0 parent ffff: matchall \
62                   action sample rate 100 group 12
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SEE ALSO

66       tc(8),
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70iproute2                          21 Oct 2015    Match-all classifier in tc(8)