xref: /freebsd/usr.sbin/spray/spray.8 (revision 6990ffd8a95caaba6858ad44ff1b3157d1efba8f)
1.\"
2.\" Copyright (c) 1994 James A. Jegers
3.\" All rights reserved.
4.\"
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24.\" $FreeBSD$
25.\"
26.Dd July 10, 1995
27.Dt SPRAY 8
28.Os
29.Sh NAME
30.Nm spray
31.Nd send many packets to host
32.Sh SYNOPSIS
33.Nm
34.Op Fl c Ar count
35.Op Fl d Ar delay
36.Op Fl l Ar length
37.Ar host
38.Sh DESCRIPTION
39.Nm Spray
40sends multiple RPC packets to
41.Ar host
42and records how many of them were correctly received and how long it took.
43.Pp
44The options are as follows:
45.Bl -tag -width indent
46.It Fl c Ar count
47Send
48.Ar count
49packets.
50.It Fl d Ar delay
51Pause
52.Ar delay
53microseconds between sending each packet.
54.It Fl l Ar length
55Set the length of the packet that holds the RPC call message to
56.Ar length
57bytes.
58Not all values of
59.Ar length
60are possible because RPC data is encoded using XDR.
61.Nm Spray
62rounds up to the nearest possible value.
63.El
64.Pp
65.Nm Spray
66is intended for use in network testing, measurement, and management.
67This command
68.Em "can be very hard on a network and should be used with caution" .
69.Sh SEE ALSO
70.Xr netstat 1 ,
71.Xr ifconfig 8 ,
72.Xr ping 8 ,
73.Xr rpc.sprayd 8
74