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MAP-MBONE(8)		     System Manager's Manual		    MAP-MBONE(8)

NAME
     map-mbone - Multicast connection mapper

SYNOPSIS
     /usr/sbin/map-mbone  [  -d  debug_level  ]  [  -f	]  [  -g  ]  [ -n ] [ -r
     retry_count ] [ -t timeout_count ] [ starting_router ]

DESCRIPTION
     map-mbone 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.

     map-mbone traverses neighboring multicast routers by sending the ASK_NEIGH-
     BORS  IGMP  message  to  the  multicast  starting_router. If this multicast
     router responds, the version number and a list of their neighboring  multi-
     cast  router  addresses  is part of that response. If the responding router
     has recent multicast version number, then map-mbone requests additional in-
     formation such as metrics, thresholds, and flags from the multicast router.
     For each new occurrence of neighboring multicast 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  re-
     ported.

INVOCATION
     "-d"  option sets 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 follow-
     ing effects:

     level 1packet warnings are printed to stderr.

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

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

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

     "-g" option sets graphing in GraphEd format.

     "-n" option disables the DNS lookup for the multicast  routers names.

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

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

IMPORTANT NOTE
     map-mbone must be run as root.

SEE ALSO
     mrouted(8), mrinfo(8), mtrace(8)

AUTHOR
     Pavel Curtis

4.2 Berkeley Distribution					    MAP-MBONE(8)
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