/NODE[=node-name,...]
       /NONODE[=node-name,...]
    Specifies that events occurring on a node or nodes are to be
    selected or rejected.
    If you enter /NODE without a value, only events that occur on the
    node on which you are running ELV are selected.
    If you enter /NONODE without a value, events occurring on all
    nodes that are represented in the error log file are selected.