Client

The client sample sends either UDP, TCP or multicast UDP packets to a running instance of the Server sample, receives the packets echoed from the server (for non-multicast) and accumulates statistics regarding the round trip packet times. The server is specified by the IP address and port number. These, as well as the protocol (UDP or TCP), packet size and number of packets sent/received are command line arguments.

Statistics are displayed for every 500 packets sent. Minimum, average, and maximum round trip packet times are displayed as well as the throughput. Once all packets are sent, statistics are displayed for all packets and a histogram similar to that of SRTM is provided showing the frequency by which various round trip latencies where encountered. The congestion of the LAN and the determinism of the systems running the client sample and the server sample are all considerations in interpreting the results.

You can also use the client to show basic filter functionality using the RtClientFilter example. The RtClientFilter should be enabled on the machine running the server sample and the client should use the t option to enable filter testing.

Option	Description
i=	Destination IP address in dot notation. If multicast mode is selected, then the multicast IP address should be specified instead of the actual server IP address.
f=v4, v6	v4 = IPv4 (AF_INET) address family v6 = IPv6 (AF_INET) address family
n=0,1	0=disable Nagle Algorithm, 1=Enable Nagle Algorithm (default) Note: Both the client and the server must have the use of the Nagle Algorithm in the same state. Either both have the Nagle Algorithm disabled or both have the Nagle Algorithm enabled.
b=0,1	0=don't include the first 500 packets in performance metrics (default), 1=include the first 500 packets
i=0,1	0=Use packets that fit inside standard Ethernet MTU, 1=Allow IP to break up packets and don't force packet to fit in MTU. Default=1
p=nn	nn port number (default is 9999)
/udp	Use UDP rather than defaulting to TCP
s=packet size	Packet size sent (default=1024 )in bytes.
c=	Connection loops (default=1)
m=	Message loops (default=10000)
K	Kill the server; remote shutdown of the Server
/silent	Run in silent mode (no printfs)
/?	/? displays usage
t LocalMACAddress DestinationMACAddress	Test the stack filter using the RtClientFilter example. The local and destination MAC addresses should include just the hex digits, without any separator characters.

If a non-deterministic call such as RtPrintf is made to Windows, and the Windows side crashes while the thread is within the Windows domain, the thread freezes. To avoid this issue, we recommend that you run Client in silent mode (/silent).