Sends a specified number of packets to a host and reports performance statistics.
/usr/sbin/spray Host [ -c Count ] [ -d Delay ] [ -i ] [ -l Length ]
The spray command uses the Remote Procedure Call (RPC) protocol to send a one-way stream of packets to the host you specify. This command reports how many packets were received and at what transfer rate. The Host parameter can be either a name or an Internet address. The host only responds if the sprayd daemon is running.
See the rpc.sprayd daemon documentation for factors that affect spray command performance.
|-c Count||Specifies the number of packets to send. The default value is the number of packets required to make the total stream size 100,000 bytes.|
|-d Delay||Specifies the time, in microseconds, the system pauses between sending each packet. The default is 0.|
|-i||Uses the Internet Control Message Protocol (ICMP) echo packets rather than the RPC protocol. Since ICMP echoes automatically, it creates a two-way stream. You must be root user to use this option.|
|-l Length||Specifies the number of bytes in the packet that holds the RPC call
message. The default value of the Length parameter is 86
bytes, the size of the RPC and UDP headers.
The data in the packet is encoded using eXternal Data Representation (XDR). Since XDR deals only with 32-bit quantities, the spray command rounds smaller values up to the nearest possible value.
When the Length parameter is greater than 1500 for Ethernet or 1568 for token-ring, the RPC call can no longer fit into one Ethernet packet. Therefore, the Length field no longer has a simple correspondence to Ethernet packet size.
The sprayd daemon.
List of NFS Commands.
Network File System (NFS) Overview for System Management in AIX 5L Version 5.1 System Management Guide: Communications and Networks.
NFS Problem Determination in AIX 5L Version 5.1 System Management Guide: Communications and Networks.