1.\" $NetBSD: spray.8,v 1.6 2002/02/02 01:54:29 wiz Exp $ 2.\" 3.\" Copyright (c) 1994 James A. Jegers 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. The name of the author may not be used to endorse or promote products 12.\" derived from this software without specific prior written permission 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24.\" 25.Dd July 10, 1995 26.Dt SPRAY 8 27.Os 28.Sh NAME 29.Nm spray 30.Nd send many packets to host 31.Sh SYNOPSIS 32.Nm 33.Op Fl c Ar count 34.Op Fl d Ar delay 35.Op Fl l Ar length 36.Ar host 37\&... 38.Ek 39.Sh DESCRIPTION 40.Nm 41sends multiple RPC packets to 42.Ar host 43and records how many of them were correctly received and how long it took. 44.Pp 45The options are as follows: 46.Bl -tag -width indent 47.It Fl c Ar count 48Send 49.Ar count 50packets. 51.It Fl d Ar delay 52Pause 53.Ar delay 54microseconds between sending each packet. 55.It Fl l Ar length 56Set the length of the packet that holds the RPC call message to 57.Ar length 58bytes. 59Not all values of 60.Ar length 61are possible because RPC data is encoded using XDR. 62.Nm 63rounds up to the nearest possible value. 64.El 65.Pp 66.Nm 67is intended for use in network testing, measurement, and management. 68This command 69.Bf -emphasis 70can be very hard on a network and should be used with caution. 71.Ef 72.Sh SEE ALSO 73.Xr netstat 1 , 74.Xr ifconfig 8 , 75.Xr ping 8 , 76.Xr rpc.sprayd 8 77