1 .\" $NetBSD: map-mbone.8,v 1.5 2003/03/05 21:55:52 wiz Exp $
3 .\" Mapper for connections between MRouteD multicast routers.
4 .\" Written by Pavel Curtis <Pavel@PARC.Xerox.Com>
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37 map-mbone \- Multicast connection mapper
39 .B /usr/sbin/map-mbone
60 attempts to display all multicast routers that are reachable from the multicast
62 If not specified on the command line, the default multicast
67 traverses neighboring multicast routers by sending the ASK_NEIGHBORS IGMP
68 message to the multicast starting_router. If this multicast router responds,
69 the version number and a list of their neighboring multicast router addresses is
70 part of that response. If the responding router has recent multicast version
73 requests additional information such as metrics, thresholds, and flags from the
74 multicast router. For each new occurrence of neighboring multicast router in
75 the reply and provided the flooding option has been selected, then
77 asks each of this multicast router for a list of neighbors. This search
78 for unique routers will continue until no new neighboring multicast routers
84 "\-d" option sets the debug level. When the debug level is greater than the
85 default value of 0, addition debugging messages are printed. Regardless of
86 the debug level, an error condition, will always write an error message and will
90 Non-zero debug levels have the following effects:
92 packet warnings are printed to stderr.
94 all level 1 messages plus notifications down networks are printed to stderr.
96 all level 2 messages plus notifications of all packet
97 timeouts are printed to stderr.
99 "\-f" option sets flooding option. Flooding allows the recursive search
100 of neighboring multicast routers and is enable by default when starting_router
103 "\-g" option sets graphing in GraphEd format.
105 "\-n" option disables the DNS lookup for the multicast routers names.
107 "\-r retry_count" sets the neighbor query retry limit. Default is 1 retry.
109 "\-t timeout_count" sets the number of seconds to wait for a neighbor query
110 reply before retrying. Default timeout is 2 seconds.