Source : Free On-Line Dictionary of Computing

Chernobyl packet
     
        /cher-noh'b*l pak'*t/ A network packet that induces a
        {broadcast storm} and/or {network meltdown}, in memory of the
        April 1986 nuclear accident at Chernobyl in Ukraine.  The
        typical scenario involves an IP Ethernet datagram that passes
        through a gateway with both source and destination Ether and
        IP address set as the respective broadcast addresses for the
        subnetworks being gated between.  Compare {Christmas tree
        packet}.
     
        [{Jargon File}]