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 argument 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 possi-
           ble, 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.

     -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  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWrcmdc                   |
    |_____________________________|_____________________________|

SEE ALSO

     rpc(3NSL), attributes(5)