In one approach for processing a data packet, in at least one stage of a plurality of stages of a pipeline circuit, a respective packet field value is extracted from the data packet. A method of making an olefin oligomerization catalyst comprising a chromium-containing compound, a nitrogen-containing compound, and a metal alkyl, the method comprising adding a composition comprising the chromium-containing compound to a composition comprising the metal alkyl. Each task describes a repair of a telecommunications network. The invention consists in regulating such filter setting by way of a program-controlled digital signal processor DSP in such a way that the DSP modulates the filter element with an adjustable frequency, and such regulation exploits the phase of the laser intensity fluctuations induced thereby to regulate the optimal position of the band-pass filter.