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59 lines
1.4 KiB
Groff
59 lines
1.4 KiB
Groff
.TH "Traffic control index filter" 8 "21 Oct 2015" "iproute2" "Linux"
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.SH NAME
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tcindex \- traffic control index filter
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.SH SYNOPSIS
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.in +8
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.ti -8
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.BR tc " " filter " ... " tcindex " [ " hash
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.IR SIZE " ] [ "
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.B mask
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.IR MASK " ] [ "
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.B shift
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.IR SHIFT " ] [ "
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.BR pas_on " | " fall_through " ] [ " classid
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.IR CLASSID " ] [ "
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.B action
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.BR ACTION_SPEC " ]"
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.SH DESCRIPTION
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This filter allows to match packets based on their
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.B tcindex
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field value, i.e. the combination of the DSCP and ECN fields as present in IPv4
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and IPv6 headers.
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.SH OPTIONS
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.TP
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.BI action " ACTION_SPEC"
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Apply an action from the generic actions framework on matching packets.
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.TP
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.BI classid " CLASSID"
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Push matching packets into the class identified by
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.IR CLASSID .
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.TP
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.BI hash " SIZE"
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Hash table size in entries to use. Defaults to 64.
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.TP
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.BI mask " MASK"
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An optional bitmask to binary
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.BR AND " to the packet's " tcindex
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field before use.
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.TP
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.BI shift " SHIFT"
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The number of bits to right-shift a packet's
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.B tcindex
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value before use. If a
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.B mask
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has been set, masking is done before shifting.
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.TP
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.B pass_on
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If this flag is set, failure to find a class for the resulting ID will make the
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filter fail and lead to the next filter being consulted.
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.TP
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.B fall_through
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This is the opposite of
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.B pass_on
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and the default. The filter will classify the packet even if there is no class
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present for the resulting class ID.
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.SH SEE ALSO
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.BR tc (8)
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