A romfile entry can be used to create a trace object for a protocol that supports tracing. The protocol's initialization routine should include a call to dtLoadXObjRomOpts(); when this function is invoked, the romfile is scanned looking for entries that bear the name of that protocol and that have meaning to the datatrace facility.
A romfile entry to create a trace object for the IP protocol would look like:
ip trace name=ip_trace logsize=10000 filesize=3;
The first argument in the romfile entry must be the protocol name, and the second is ``trace''. The ``name'' argument is optional; if not specified, the trace object is given no name. The above romfile entry would result in a call to dtCreateTraceObj() with the specified parameters when the dtLoadXObjRomOpts() function was invoked.