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dbeacon - Online in the Cloud

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This is the command dbeacon that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



dbeacon - Distributed IPv4/IPv6 multicast beacon


dbeacon -a MAIL -b BEACON_ADDR[/PORT] [-i INTFNAME] [-n NAME] [-S [GROUP_ADDR[/PORT]] [-s
ADDR] [-d [FILE]] [-I NUMBER] [-W type$url] [-L program] [-C CC] [-4] [-6] [-v] [-P] [-U]
[-V] [-F flag] [-O] [-B ADDR]


dbeacon is a network level management tool aiming at getting various statistics about
multicast connectivity. Its first usage is to check out if you can send/receive
toward/from an IPv4/IPv6 multicast network. Its second usage is to gather various
statistics by using a known multicast ASM group, for example TTL between each multicast
peers, loss or jitter figures. Theses statistics are kept internally but can be dumped
periodically in a file in xml format for latter processing. Statistics gathering is
completetly distributed and rely on the powerful nature of ASM. No server is required, but
maybe a http server for accessing the statistics and build an adjacency matrix of the


-n NAME, -name NAME
The name identifying you on the dbeacon session. If not specified, dbeacon will use
the hostname of the running machine.

Administrative contact. This is an e-mail used for join you, for example to notify
you that something is wrong is your multicast connectivity

-i IN, -interface IN
Use IN instead of the default interface for multicast.

This is the IPv4/IPv6 address of the ASM group used by dbeacon to gather
statistics. It can be specified as a DNS name too.

Enables SSM reception/sending on optional GROUP_ADDR/PORT

-O This option enable SSM data sending in addition to ASM data. It can be used to
check if people can reach you via SSM.

This allows you to bootstrap from an ADDR that is already in the matrix. This
option is useful when you ASM connectivity is broken but SSM connectivity works.

-P, -ssmping
Enable SSM Ping server capability.

Bind to local address. This allow you to specify the multicast source of the
packets sent by your beacon.

Dump periodic reports to dump.xml or specified file. This file may be latter
processed by any XML compliant script. On a http server, you can process the dump
to create a nice adjacency matrix.

-I NUMBER, -interval NUMBER
Interval between refresh of the dump file. Defaults to 5 secs if not specified

-W URL, -website URL
Specify a website to announce.

-Wm URL, -matrix URL
Specify your matrix URL.

-Wl URL, -lg URL
Specify your looking glass URL.

-C CC Specify your two letter Country Code.

-L program
Launch program after each dump. The first argument will be the dump filename.

-F flag
Specify a flag to announce. For example to announce that your host is running a
ssmpingd daemon, use `ssmping' as a flag.

-4, -ipv4
Force IPv4 usage (Default is IPv6).

-6, -ipv6
Force IPv6 usage

-v verbose mode (use several for more verbosity)

-U Dump periodic bandwidth usage reports to stdout

-D, -daemon
fork to the background (daemonize)

-pidfile FILE
Path to the PID file to write to.

Outputs using syslog facility.

Specifies the configuration file to use. Each of the above command-line parameters
can be defined there.

-V, -version
Outputs version information and leaves

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