[P4-dev] Usage of exceptions (p4-14)

Diogo Pinto diogo.f1.p2 at gmail.com
Wed Apr 19 12:57:03 EDT 2017


I'm trying to drop packets at the parser. With that intent, I have
something like:

parser_exception myException {



parser parse_X {

return select(current(0,1)) {

"case_1_value" : parse_error myException;

"case_2_value" : parse_Y;

default : ingress;



I made sure that *parse_X* is entering *case_1*. However, the packet is not
being dropped. The packet is reaching control ingress.

Are *parser_exceptions* implemented at all ?
Or does the* parser_drop* exception signal some metadata field that I can
use at ingress control ?

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