We proposera new all-optical labelling, technique that uses parametric amplification to generate optical packets, This approach considers that an on-off keyed payload, is inserted, in a parametric amplifier, where the pump is modulated, by label information. The parametric interaction between these signals induces; power variations. in the payload which, under certain conditions, becomes a ternary amplitude optical packet, (TAOP). Computer simulations are used to test our proposal and to evaluate packet propagation. Our numerical results indicate that 11.25 Gb/s TAOPs can be successfully transmitted through metropolitan area, network scale before a 1-dB penalty is achieved. © 2007 IEEE.4 256259Guillemot, C., Transparent optical packet switching: The European ACTS KEOPS project approach (1998) IEEE J. Light. Tech, 16, pp. 2117-2134. , DecBarbosa, F.R., Maia, D., Pezzolo, L., Sachs, A.C., Salvador, M.R., Optical packet switching node for metro-access networks, paper We4.P-160 (2003) Proceed. 29th. European Conference on Optical Communications -ECOC2003, , Rimini, Italy, SeptBlumenthal, D.J., All-optical label swapping networks and technologies (2000) IEEE J. Light. Tech, 18, pp. 2058-2075. , DecKoonen, T., Sulur, S., Monroy, I., Jennen, J., Waardt, H., Optical labeling of packets in IP-over-WDM networks (2002) ECOC 2002, , Paper 5.5.2, Copenhagen, DenmarkAbbade, M.L.F., Fagotto, E.A.M., Braga, R.S., Barbosa, F.R., Moschim, E., Fonseca, I.E., Quaternary Optical Packets Generated by Fiber Four-Wave Mixing (2006) IEEE Phot. Tech. Lett, 18 (2), pp. 331-333. , JanAgrawal, G.P., (2001) Nonlinear Fiber Optics, , 3rd Edition, Academic PressBogris, A., Syvridis, D., Regenerative Properties of a Pump-Modulated Four Wave Mixing Scheme in Dispersion Shifted Fibers (2003) IEEE J. Lightwave Tech, 21 (9). , Sept