spray(1M)                                                         spray(1M)

NAME
     spray - spray packets

SYNOPSIS
     /usr/sbin/spray [-c count] [-d delay] [-l length] [-t nettype host]

DESCRIPTION
     spray sends a predefined number of data packets to the host using RPC,
     grouped in a start and stop packet. The host argument can be either
     the name or the Internet address of the host. RPC acknowledgements are
     not expected for the data packets. The data is therefore sent as
     quickly as is possible with the transport layer used. The host ack-
     nowledges receipt of the stop packet indicating the number of data
     packets it has received and the time delay between the start and stop
     packet.

     From this, spray calculates the number of packets rejected by the host
     and the data rate achieved based on the number of successfully trans-
     mitted packets. These values are displayed.

OPTIONS
     -c count
          Specifies the number of data packets to be sent. The default
          value for count is the number of packets required to make the
          total stream size of 100,000 bytes, which is in turn dependent on
          the packet length (see below).

     -d delay
          Specifies how many microseconds to pause between sending each
          packet. The default is 0.

     -l length
          The parameter length is the number of bytes in a data packet.
          Since the data is transmitted with XDR encoding and XDR only
          works with 32-bit units, not all length values are possible. In
          this case, spray rounds up to nearest possible value.

          The default value for length is 86 bytes, the maximum value is
          8845 bytes.

     -t nettype
          Specify nettype. Defaults to netpath. See rpc(3N) for a descrip-
          tion of supported nettypes.

SEE ALSO
     sprayd(1M), rpc(3N).









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