HP Remote Graphics Software (RGS) Uživatelský manuál stáhnout pdf (Strana 236)

tripled due to transmitting the webcam output via RGS to the Sender, transmitting the images to the

conference receiver and RGS transmitting the images back to the RGS Receiver. By reducing the size of

the webcam image and/or reducing the quality setting of the webcam software, some improvement

may be seen. High quality settings and/or large image sizes will certainly impact the visual quality and

usability.

11.4 Configuring your network for optimal

performance

RGS depends on low network latency and reasonably high network bandwidth. There are several

methods to test and measure the network bandwidth, latency, and the number of hops between Sender

and Receiver computers:

●

Use the ping command to measure network latency. From a command prompt on Windows or a

terminal window on Linux, execute ping hostname. This will report the network latency. Be sure the

ping protocol (ICMP) is not blocked by a firewall. Windows may be set up with IPSec filters—be

sure there is no IPSec filter policy disabling ICMP traffic.

●

Use Traceroute (Linux) or tracert (Windows) to measure the network latency between two

computers. Traceroute will report the number of hops it takes to reach a computer in addition to

the network latency.

●

Use ttcp to measure the network bandwidth. ttcp is available at:

http://www.pcausa.com/Utilities/pcattcp.htm

Once you’ve characterized your network performance, you can decide if improvement is required.

Several possible steps are described below.

The computer network interface will auto-negotiate the network speed with the network switches on the

local network. The negotiated speed can vary from 10 Mb/sec half duplex to 10 Gb/sec full duplex.

Most modern network interfaces and switches will negotiate the highest possible speed available.

However, unless the network has been carefully designed for maximum throughput, the network

interfaces and switches may auto-negotiate to a sub-optimal speed.

If the network interface and switches are configured to auto-negotiate properly, you can leave the

settings to auto-negotiate. If you want to force the network to operate at a particular speed, the settings

in the network interface and switches can be hardcoded. You must be careful with these settings,

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HP Remote Graphics Software (RGS) Uživatelský manuál Strana 236