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spray(8)
NAME
  spray - Spray packets

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

OPTIONS
  -c count
      Specifies how many packets to send.  The default value of count is the
      number of packets required to make the total stream size 100000 bytes.

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

  -l length
      The length parameter is the numbers of bytes in the Ethernet packet
      that holds the RPC call message.	Since the data is encoded using XDR,
      and XDR only deals with 32 bit quantities, not all values of length are
      possible, and spray rounds up to the nearest possible value.  When
      length is greater than 1514, then the RPC call can no longer be
      encapsulated in one Ethernet packet, so the length field no longer has
      a simple correspondence to Ethernet packet size.	The default value of
      length is 86 bytes (the size of the RPC and UDP headers).

  -t nettype
      Specify class of transports.  Defaults to netpath.  See rpc(3) for a
      description of supported classes.

DESCRIPTION
  The spray command uses RPC to send a one-way stream of packets to the
  specified host and reports how many were received, as well as the transfer
  rate.	 The host argument can be either a name or an Internet address.

  A remote host only responds if it is running the sprayd daemon, which is
  normally started up from inetd(8).

  The spray command is not useful as a networking benchmark.  The spray
  command can report a large number of packets dropped when the drops were
  caused by spray sending packets faster than they can be buffered locally
  (before the packets get to the network medium).

SEE ALSO
  Routines: rpc(3)

Index for Section 8

Alphabetical listing for S

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