Library /sys$common/syshlp/LAN$HELP.HLB  —  LAN command, TRACE
    This command displays the trace data logged for the specified devices.
    Tracing entries are displayed by default from oldest entries to most
    recent.

    It correspondingly creates the following symbols:

    TRACE - pointer to the trace data for the current device
    TRCHDR - pointer to the trace header data for the current device

1  –  Parameters

    None.

2  –  Qualifiers

2.1    /CONTEXT

    /CONTEXT

    Displays LAN driver event definition.

2.2    /DEVICE

    /DEVICE=(device1,device2,...)

    Includes specific LAN devices.  The default is all LAN devices
    included.  Device names are displayed by the LAN DEVICES command.
    Each device name may be preceded by "NO" to exclude the device(s).

    /DEVICE=ALL includes all devices.  /DEVICE=NOdevname, equivalent
    to /DEVICE=(ALL,NOdevname), includes all devices except device
    devname.  /DEVICE=devname, equivalent to /DEVICE=(NOALL,devname)
    selects only devname..

2.3    /EVENT

    /EVENT=(event1,event2,...)

    Enables trace display of specific events.  The default is all events.
    Event names are displayed by the LAN TRACE/CONTEXT command.  Each
    event name may be preceded by "NO" to exclude the event.

    /EVENT=ALL includes all events.  /EVENT=(ALL,NOEVENTn) includes all
    events except EVENTn.  /EVENT=EVENTn (equivalent to (NOALL,EVENTn)
    selects only EVENTn.

2.4    /REVERSE

    /REVERSE

    Displays tracing data from the most recent entries to the oldest.

3  –  Example

    SDA> LAN TRACE/DEVICE=EWA

    Displays LAN trace information for LAN device EWA.
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