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<H2><A NAME="s4">4. LinkEvent</A></H2>
<P>A LinkEvent will be generated whenever a link changes its state (i.e. it either breaks and "goes down" or it starts working again and "goes up"). It contains
the following parameters:
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<LI>"Source Address" (IPAddr) - The address of the interface that feeds
packets into the link</LI>
<LI>"Destination Address" (IPAddr) - The address of the interface that receives packets from the link</LI>
<LI>"State" (Integer) - The new state of the link, either State.UP or State.DOWN, as defined in <B>jns.util.State</B></LI>
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