spray(8)spray(8)NAMEspray - Spray packets
SYNOPSIS
/usr/sbin/spray [-c count] [-d delay] [-l length] [-t nettype] host
OPTIONS
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.
Specifies how many microseconds to pause between sending each packet.
The default is 0. 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 pos‐
sible 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 head‐
ers). 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)spray(8)
