fm->cookie = htonll(0);
fm->cookie_mask = htonll(0);
fm->new_cookie = htonll(learn->cookie);
+ fm->modify_cookie = fm->new_cookie != htonll(UINT64_MAX);
fm->table_id = learn->table_id;
fm->command = OFPFC_MODIFY_STRICT;
fm->idle_timeout = learn->idle_timeout;