Sets the filters to block the specified events for the entity
    instance or class. It causes the named events to be blocked.

1  –  global_filter

    block  [node node-id] event dispatcher sink simple-name -
            global filter ((class-name[,class-name...]), -
            event-name)

    Global Filter

    Specifies a class name, excluding all instance names (for
    example, node, mop, circuit), and identifies the event to be
    blocked.  To block all events for the class, specify "all"
    instead of an individual event.

    Example:

    block event dispatcher sink local_sink -
            global filter ((Node, Event Dispatcher, SINK), All)

1.1  –  Exception Messages

 o  illegal element

    The command did not include a class or instance argument, or
    an argument contained one of the following illegal elements:
    wildcard, node name, node class, illegal class.

 o  entity class not supported (OpenVMS)

    The Event Dispatcher is not registered with EMAA.  The NET$EVD
    process is probably not started.  For instructions on how to
    restart the Event Dispatcher, refer to
    HELP NETWORK_MANAGEMENT EVENT_DISPATCHER.

 o  no such object instance

    The specified event dispatcher sink instance does not exist.

2  –  specific_filter

    block  [node node-id] event dispatcher sink simple-name
            specific filter (instance-name, event-name)

    Specific Filter

    Specifies an entity, including instance name, and name the
    event to be blocked.  To block all events for this instance,
    specify "all" instead of an individual event.

    Examples:

    block event dispatcher sink local_sink -
        specific filter (Node LOCAL:.LAMCHP Event Dispatcher -
        Sink local_sink, all)

    block event dispatcher sink local_sink specific filter -
        (Node LOCAL:.LAMCHP Event Dispatcher Sink local_sink -
         Inbound stream EVD$IBS$0000, all)

2.1  –  Exception Messages

 o  illegal element

    The command did not include a class or instance argument, or
    an argument contained one of the following illegal elements:
    wildcard, node name, node class, illegal class.

 o  entity class not supported (OpenVMS)

    The Event Dispatcher is not registered with EMAA.  The NET$EVD
    process is probably not started.  For instructions on how to
    restart the Event Dispatcher, refer to
    HELP NETWORK_MANAGEMENT EVENT_DISPATCHER.

 o  no such object instance

    The specified event dispatcher sink instance does not exist.