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smidiff(1)			    SMI Tools			      smidiff(1)

NAME
     smidiff - check differences between a pair of SMI or SPPI modules

SYNOPSIS
     smidiff [ -Vhsm ] [ -c file ] [ -l level ] [ -i error-pattern ] [ -p module
     ] oldmodule newmodule

DESCRIPTION
     The  smidiff program is used to check differences between a pair of SMI MIB
     modules or SPPI PIB modules.  E.g., it can be used to detect changes in up-
     dated MIB modules that can cause interoperability	problems  with	existing
     implementations. SMIv1/v2 and SPPI style MIB/PIB modules are supported.

     Note that conformance statements are currently not checked.

     Messages  describing  the	differences  are  written to the standard output
     channel while error and warning messages generated by the parser are  writ-
     ten to the standard error channel.

OPTIONS
     -V, --version
	    Show the smidump version and exit.

     -h, --help
	    Show a help text and exit.

     -s, --severity
	    Show the error severity in brackets before error messages.

     -m, --error-names
	    Show the error names in braces before error messages.

     -c file, --config=file
	    Read file instead of any other (global and user) configuration file.

     -p module, --preload=module
	    Preload  the  module  module before reading the main module(s). This
	    may be helpful if an incomplete main module misses	to  import  some
	    definitions.

     -l level, --level=level
	    Report  errors  and warnings up to the given severity level. See the
	    smilint(1) manual page for a description of the  error  levels.  The
	    default error level is 3.

     -i prefix, --ignore=prefix
	    Ignore all errors that have a tag which matches prefix.

     oldmodule
	    The original module.

     newmodule
	    The updated module.

     If  a  module  argument represents a path name (identified by containing at
     least one dot or slash character), this is assumed to be the exact file  to
     read.  Otherwise, if a module is identified by its plain module name, it is
     searched according to libsmi internal rules. See smi_config(3) for more de-
     tails.

SEE ALSO
     The   libsmi(3)   project	 is    documented    at    http://www.ibr.cs.tu-
     bs.de/projects/libsmi/.

AUTHOR
     (C) 2001 T. Klie, TU Braunschweig, Germany <tklie@ibr.cs.tu-bs.de>
     (C)  2001	J.  Schoenwaelder,  TU Braunschweig, Germany <schoenw@ibr.cs.tu-
     bs.de>
     and contributions by many other people.

IBR				 August 10, 2004		      smidiff(1)

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