spray(1M)                                                 System Administration Commands                                                 spray(1M)

NAME

       spray - spray packets

SYNOPSIS

       /usr/sbin/spray [-c count] [-d delay] [-l length] [-t nettype] host

DESCRIPTION

       spray sends a one-way stream of packets to host using RPC, and reports how many were received, as well as the transfer rate. The host argu-
       ment can be either a name or an Internet address.

       spray is not useful as a networking benchmark, as it uses unreliable connectionless transports, UDP for example. spray can report  a  large
       number of packets dropped when the drops were caused by spray sending packets faster than they can be buffered locally, that is, before the
       packets get to the network medium.

OPTIONS

       -c count        Specify how many packets to send. The default value of count is the number of packets required to  make  the  total  stream
                       size 100000 bytes.

       -d delay        Specify how many microseconds to pause between sending each packet. The default is 0.

       -l length       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 Ether-
                       net 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.

       -t nettype      Specify class of transports. Defaults to  netpath. See rpc(3NSL) for a description of supported classes.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWrcmdc                    |
       +-----------------------------+-----------------------------+

SEE ALSO

       rpc(3NSL), attributes(5)

SunOS 5.10                                                          6 Nov 2000                                                           spray(1M)