basic - basic traffic control filter
tc filter ... basic [ match EMATCH_TREE ] [ action ACTION_SPEC ] [ classid CLASSID ]
The basic filter allows to classify packets using the extended match infrastructure.
Apply an action from the generic actions framework on matching packets.
Push matching packets into the class identified by CLASSID.
Match packets using the extended match infrastructure. See tc-ematch(8) for a detailed description of the allowed syntax in EMATCH_TREE.