FreeBSD Man Pages

map-mbone(8)

NAME

     map-mbone -- multicast connection mapper

SYNOPSIS

     map-mbone [-d debug_level] [-f] [-g] [-n] [-r retry_count]
	       [-t timeout_count] [starting_router]

DESCRIPTION

     The map-mbone utility attempts to display all multicast routers that are
     reachable from the multicast starting_router.  If not specified on the
     command line, the default multicast starting_router is the localhost.

     The map-mbone utility traverses neighboring multicast routers by sending
     the ASK_NEIGHBORS IGMP message to the multicast starting_router.  If this
     multicast router responds, the version number and a list of their neigh-
     boring multicast router addresses is part of that response.  If the
     responding router has recent multicast version number, then map-mbone
     requests additional information such as metrics, thresholds, and flags
     from the multicast router.  For each new occurrence of neighboring multi-
     cast router in the reply and provided the flooding option has been
     selected, then map-mbone asks each of this multicast router for a list of
     neighbors.  This search for unique routers will continue until no new
     neighboring multicast routers are reported.

     The following options are available:

     -d      Set the debug level.  When the debug level is greater than the
	     default value of 0, addition debugging messages are printed.
	     Regardless of the debug level, an error condition, will always
	     write an error message and will cause map-mbone to terminate.
	     Non-zero debug levels have the following effects:

	     level 1
		     packet warnings are printed to stderr.

	     level 2
		     all level 1 messages plus notifications down networks are
		     printed to stderr.

	     level 3
		     all level 2 messages plus notifications of all packet
		     timeouts are printed to stderr.

     -f      Set flooding option.  Flooding allows the recursive search of
	     neighboring multicast routers and is enable by default when
	     starting_router is not used.

     -g      Set graphing in GraphEd format.

     -n      Disable the DNS lookup for the multicast routers names.

     -r retry_count
	     Set the neighbor query retry limit.  Default is 1 retry.

     -t timeout_count
	     Set the number of seconds to wait for a neighbor query reply
	     before retrying.  Default timeout is 2 seconds.

     Pavel Curtis

FreeBSD 5.4			  May 8, 1995			   FreeBSD 5.4

SPONSORED LINKS