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map-mbone - Multicast connection mapper
/usr/sbin/map-mbone [ -d debug_level ] [ -f ] [ -g ] [ -n ] [ -r
retry_count ] [ -t timeout_count ] [ starting_router ]
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_NEIGHBORS IGMP message to the multicast starting_router. If this
multicast router responds, the version number and a list of their
neighboring 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 mul-
ticast 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.
"-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 following effects:
packet warnings are printed to stderr.
all level 1 messages plus notifications down networks are
printed to stderr.
all 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 start-
ing_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
"-t timeout_count" sets the number of seconds to wait for a neighbor
query reply before retrying. Default timeout is 2 seconds.
map-mbone must be run as root.
mrouted(8), mrinfo(8), mtrace(8)
4.2 Berkeley Distribution MAP-MBONE(8)