map-mbone(8)map-mbone(8)NAMEmap-mbone - Multicast connection mapper
SYNOPSIS
/usr/sbin/map-mbone [-d debug_level] [-f] [-g] [-n] [-r retry_count]
[-t timeout_count] [starting_router]
OPTIONS
Sets the debug level. When the debug level is greater than 0 (the
default), additional debugging messages are printed. Regardless of the
debug level, if an error occurs, map-mbone writes an error message and
terminates. Nonzero debug levels have the following effects: Prints
packet warnings to stderr. Prints all level 1 messages and notifica‐
tions of down networks to stderr. Prints all level 2 messages and
notifications of all packet timeouts to stderr. Specifies the flooding
option. Flooding allows the recursive search of neighboring multicast
routers, and is enabled by default when starting_router is not used.
Specifies graphing in GraphEd format. Disables the Domain Name Service
(DNS) lookup for names of multicast routers. Specifies the number of
times to retry a neighbor query. The default is 1 retry. Specifies
the number of seconds to wait for a neighbor to reply to a query before
retrying. The default timeout is 2 seconds.
DESCRIPTION
The map-mbone program displays information about 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 local
host.
The map-mbone program traverses neighboring multicast routers by send‐
ing the ASK_NEIGHBORS IGMP message to the multicast starting_router.
If this multicast router responds, the response includes the version
number and a list of addresses of neighboring multicast routers. If
the responding router has a recent multicast version number, map-mbone
requests additional information such as metrics, thresholds, and
options from the multicast router. If the flooding option (-f) is spec‐
ified, map-mbone asks each new neighboring multicast router for a list
of neighbors. This search for unique routers continues until no new
neighboring multicast routers are reported.
RESTRICTIONS
You must be superuser in order to run map-mbone.
SEE ALSO
Commands: mrinfo(8), mrouted(8), mtrace(8)
Networking: mbone.info(7)map-mbone(8)
