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Packet-drop function for a time-division multiplexing network using 100-Gb/s, 8-b words is experimentally demonstrated by integrating all-optical header processing and payload demultiplexing with electrooptic packet routing. The header processor consists of two levels of all-optical logic gates based on low birefringent nonlinear optical loop mirrors (NOLMs), and the payload demultiplexer is a two-wavelength NOLM. Both devices are driven by synchronized lasers with timing jitter under 1 ps. The contrast ratios for both header processor and demultiplexer are 10:1 and that of the packet router is 17 dB. The switching energies for header processing and payload reading are 10 and 1 pJ/pulse, respectively.