1.\" $NetBSD: spray.8,v 1.7 2003/06/26 10:10:11 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.Sh DESCRIPTION 38.Nm 39sends multiple RPC packets to 40.Ar host 41and records how many of them were correctly received and how long it took. 42.Pp 43The options are as follows: 44.Bl -tag -width indent 45.It Fl c Ar count 46Send 47.Ar count 48packets. 49.It Fl d Ar delay 50Pause 51.Ar delay 52microseconds between sending each packet. 53.It Fl l Ar length 54Set the length of the packet that holds the RPC call message to 55.Ar length 56bytes. 57Not all values of 58.Ar length 59are possible because RPC data is encoded using XDR. 60.Nm 61rounds up to the nearest possible value. 62.El 63.Pp 64.Nm 65is intended for use in network testing, measurement, and management. 66This command 67.Bf -emphasis 68can be very hard on a network and should be used with caution. 69.Ef 70.Sh SEE ALSO 71.Xr netstat 1 , 72.Xr ifconfig 8 , 73.Xr ping 8 , 74.Xr rpc.sprayd 8 75