spray - Spray packets
/usr/sbin/spray [-c count] [-d delay] [-l length] [-t nettype]
host
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 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). Specify
class of transports. Defaults to netpath. See rpc(3) for
a description of supported classes.
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).
Routines: rpc(3)
spray(8)
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