Configuration query

The program must print a list of zero or more key phrases, one per line, on standard output.^7.1

The following key phrases are recognized by tcc:

all

external program handles the complete traffic control subsystem configuration, including device setup, queuing, etc. This mode can also be enabled by specifying the external program with -x all:external_target

debug_target

target has only debugging functions and does not generate any elements

fifos

tcc automatically adds a FIFO queuing discipline to each class that could have a child queuing discipline, if no queuing discipline is explicitly configured there

nocombine

do not combine individual if clauses into a single classifier. This can tremendously accelerate the processing done by tcc, by offloading work to the external program. The implications of this are discussed in more detail in section 7.2.9.

nocontinue

this key phrase is only recognized for backward compatibility and has no effect

nounspec

the external program does not handle the ``unspec'' classification result in queuing disciplines, so tcc needs to generate rules to implement default actions of queuing disciplines