.TH "Traffic control index filter" 8 "21 Oct 2015" "iproute2" "Linux"

.SH NAME

tcindex \- traffic control index filter

.SH SYNOPSIS

.in +8

.ti -8

.BR tc " " filter " ... " tcindex " [ " hash

.IR SIZE " ] [ "

.B mask

.IR MASK " ] [ "

.B shift

.IR SHIFT " ] [ "

.BR pass_on " | " fall_through " ] [ " classid

.IR CLASSID " ] [ "

.B action

.BR ACTION_SPEC " ]"

.SH DESCRIPTION

This filter allows to match packets based on their

.B tcindex

field value, i.e. the combination of the DSCP and ECN fields as present in IPv4

and IPv6 headers.

.SH OPTIONS

.TP

.BI action " ACTION_SPEC"

Apply an action from the generic actions framework on matching packets.

.TP

.BI classid " CLASSID"

Push matching packets into the class identified by

.IR CLASSID .

.TP

.BI hash " SIZE"

Hash table size in entries to use. Defaults to 64.

.TP

.BI mask " MASK"

An optional bitmask to binary

.BR AND " to the packet's " tcindex

field before use.

.TP

.BI shift " SHIFT"

The number of bits to right-shift a packet's

.B tcindex

value before use. If a

.B mask

has been set, masking is done before shifting.

.TP

.B pass_on

If this flag is set, failure to find a class for the resulting ID will make the

filter fail and lead to the next filter being consulted.

.TP

.B fall_through

This is the opposite of

.B pass_on

and the default. The filter will classify the packet even if there is no class

present for the resulting class ID.

.SH SEE ALSO

.BR tc (8)