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MRINFO(8) System Manager's Manual MRINFO(8) NAME mrinfo -- displays configuration info from a multicast router SYNOPSIS mrinfo [-hn] [-d level] [-r count] [-t seconds] router DESCRIPTION mrinfo attempts to display the configuration information from the specified multicast capable router. mrinfo uses the ASK_NEIGHBORS IGMP message to query the specified multicast router. If the router responds, the version number and a list of their neighboring multicast router addresses is part of the response. If the re- sponding router has a recent multicast version number, then mrinfo requests additional information such as metrics, thresholds, and flags from the mul- ticast router. Once the specified multicast router responds, the configu- ration is displayed to the standard output. The options are as follows: -h Print a help message and exit. -n Use numerical address instead of a symbolic host name. -d level sets the debug level. When the debug level is greater than the default value of 0, additional debugging mes- sages are printed. Regardless of the debug level, an er- ror condition will always write an error message and cause mrinfo to terminate. Non-zero debug levels have the following effects (printed to stderr): 1 packet warnings. 2 all level 1 messages plus notifications of down networks. 3 all level 2 messages plus notifications of all packet timeouts. -r count sets the neighbor query retry count limit. The default is to do 3 retries. -t seconds sets the timeout in number of seconds to wait for a neighbor query reply. The default timeout is 4 seconds. EXAMPLES # mrinfo mbone.phony.dom.net 127.148.176.10 (mbone.phony.dom.net) [version 3.3]: 127.148.176.10 -> 0.0.0.0 (?) [1/1/querier] 127.148.176.10 -> 127.0.8.4 (mbone2.phony.dom.net) [1/45/tunnel] 127.148.176.10 -> 105.1.41.9 (momoney.com) [1/32/tunnel/down] 127.148.176.10 -> 143.192.152.119 (mbone.dipu.edu) [1/32/tunnel] For each neighbor of the queried multicast router, the IP of the queried router is displayed, followed by the IP and name of the neighbor. In square brackets the metric (cost of connection) and threshold (multicast ttl) is displayed. If the queried multicast router has a newer version number, the type (tunnel, srcrt) and status (disabled, down) of the connec- tion is displayed. SEE ALSO map-mbone(8), mrouted(8), mtrace(8) AUTHORS Van Jacobson FreeBSD ports 15.quarterly May 31, 2007 MRINFO(8)
NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | SEE ALSO | AUTHORS
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