NAME

       Smokeping::probes::FPing - FPing Probe for SmokePing

SYNOPSIS

        *** Probes ***

        +FPing

        binary = /usr/bin/fping # mandatory
        blazemode = true
        hostinterval = 1.5
        interface = eth0
        mininterval = 0.001
        offset = 50%
        packetsize = 5000
        pings = 20
        protocol = 4
        sourceaddress = 192.168.0.1
        step = 300
        timeout = 1.5
        tos = 0x20
        usestdout = true

        # The following variables can be overridden in each target section
        /^influx_.+/ = influx_location = In the basement

        # [...]

        *** Targets ***

        probe = FPing # if this should be the default probe

        # [...]

        + mytarget
        # probe = FPing # if the default probe is something else
        host = my.host
        /^influx_.+/ = influx_location = In the basement

DESCRIPTION

       Integrates FPing as a probe into smokeping. The variable binary must point to your copy of the FPing
       program.  If it is not installed on your system yet, you can get a slightly enhanced version from "pub"
       in www.smokeping.org.

       The (optional) packetsize option lets you configure the packetsize for the pings sent.

       Since version 3.3 fping sends its statistics to stdout. Set usestdout to 'true' so make smokeping read
       stdout instead of stderr.

       In blazemode, FPing sends one more ping than requested, and discards the first RTT value returned as it's
       likely to be an outlier.

       The FPing manpage has the following to say on this topic:

       Number of bytes of ping data to send.  The minimum size (normally 12) allows room for the data that fping
       needs to do its work (sequence number, timestamp).  The reported received data size includes the IP
       header (normally 20 bytes) and ICMP header (8 bytes), so the minimum total size is 40 bytes.  Default is
       56, as in ping. Maximum is the theoretical maximum IP datagram size (64K), though most systems limit this
       to a smaller, system-dependent number.

VARIABLES

       Supported probe-specific variables:

       binary
           The location of your fping binary.

           Example value: /usr/bin/fping

           This setting is mandatory.

       blazemode
           Send an extra ping and then discard the first answer since the first is bound to be an outlier.

           Example value: true

       hostinterval
           The fping "-p" parameter, but in (possibly fractional) seconds rather than milliseconds, for
           consistency with other Smokeping probes. From fping(1):

           This parameter sets the time that fping  waits between successive packets to an individual target.

           Example value: 1.5

       interface
           The name of the network interface to perform the ping on.

           Example value: eth0

       mininterval
           The fping "-i" parameter, but in (probably fractional) seconds rather than milliseconds, for
           consistency with other Smokeping probes. From fping(1):

           The minimum amount of time between sending a ping packet to any target.

           Example value: 0.001

           Default value: 0.01

       offset
           If you run many probes concurrently you may want to prevent them from hitting your network all at the
           same time. Using the probe-specific offset parameter you can change the point in time when each probe
           will be run. Offset is specified in % of total interval, or alternatively as 'random', and the offset
           from the 'General' section is used if nothing is specified here. Note that this does NOT influence
           the rrds itself, it is just a matter of when data acquisition is initiated.  (This variable is only
           applicable if the variable 'concurrentprobes' is set in the 'General' section.)

           Example value: 50%

       packetsize
           The ping packet size (in the range of 12-64000 bytes).

           Example value: 5000

       pings
           How many pings should be sent to each target, if different from the global value specified in the
           Database section. Note that the number of pings in the RRD files is fixed when they are originally
           generated, and if you change this parameter afterwards, you'll have to delete the old RRD files or
           somehow convert them.

           Example value: 20

       protocol
           Choose if the ping should use IPv4 or IPv6.

           Example value: 4

       sourceaddress
           The fping "-S" parameter . From fping(1):

           Set source address.

           Example value: 192.168.0.1

       step
           Duration of the base interval that this probe should use, if different from the one specified in the
           'Database' section. Note that the step in the RRD files is fixed when they are originally generated,
           and if you change the step parameter afterwards, you'll have to delete the old RRD files or somehow
           convert them. (This variable is only applicable if the variable 'concurrentprobes' is set in the
           'General' section.)

           Example value: 300

       timeout
           The fping "-t" parameter, but in (possibly fractional) seconds rather than milliseconds, for
           consistency with other Smokeping probes. Note that as Smokeping uses the fping 'counting' mode (-C),
           this apparently only affects the last ping.

           Example value: 1.5

       tos Set the type of service (TOS) of outgoing ICMP packets.  You need at laeast fping-2.4b2_to3-ipv6 for
           this to work. Find a copy on www.smokeping.org/pub.

           Example value: 0x20

       usestdout
           Listen for FPing output on stdout instead of stderr ... (version 3.3+ sends its statistics on
           stdout).

           Example value: true

AUTHORS

       Tobias Oetiker <tobi@oetiker.ch>