HP Remote Graphics Software (RGS) Instrukcja Użytkownika Pobierz pdf (Strona 112)

you to specify timeout values that, if exceeded, will cause the RGS Receiver to take specific actions, such as

displaying a warning dialog or closing the RGS connection. The two RGS Receiver timeout properties are:

●

RGS Receiver warning timeout property—If this value is exceeded, the RGS Receiver displays a

network connection warning.

●

RGS Receiver error timeout property—If this value is exceeded, the RGS Receiver closes the

connection.

The RGS Receiver error and warning timeout properties can be set in the RGS Receiver Control Panel and are

specified in seconds. The RGS Receiver timeout properties can also be set in the rgreceiverconfig file or on a

command line—in both of these cases, the timeout properties are specified in milliseconds.

If a temporary network disruption occurs for less time than the RGS Receiver warning timeout property, the

RGS Receiver will not display a warning, and the user will experience only a brief drop in Remote Display

Window interactivity. This means, for example, that a user moving or scrolling a window might see a

momentary decrease in interactivity. If the user is not interacting with the Remote Display Window during a

temporary network disruption, the network disruption may not even be noticeable (unless dynamic content

such as video fails to update at an appropriate rate).

NOTE: In many cases, the TCP/IP network stack is able to detect and resolve network errors, such as a

transmitted packet not being acknowledged. However, if a more serious problem occurs, such as a network

cable being unplugged from the local computer, the TCP/IP stack will notify the RGS Receiver of a network

exception. In this case, the RGS connection will be closed immediately, independent of whether a network

timeout property has been exceeded.

After the RGS Receiver warning timeout property has been exceeded (two seconds, in this case), the Remote

Display Window will dim and display a warning message to the user. The dimmed window and warning

message notify the user of the potentially stale contents in the Remote Display Window. During this time, the

Remote Display Window will appear unresponsive to the user. If connectivity returns, the Remote Display

Window will return to its normal appearance and interactivity.

If the connection loss extends beyond the RGS Receiver error timeout property (30 seconds, in this case), the

Remote Display Window and the RGS Receiver connection will be closed, and the "Connection Lost!" error

dialog will be displayed.

The recommended RGS Receiver timeout strategy is to set a short warning timeout property and a longer

error timeout property. With these settings, the user is notified of potential network disruptions relatively

quickly while allowing sufficient time for the network to possibly recover. For networks with potential

disruptions greater than two seconds, a higher RGS Receiver warning timeout property may be appropriate to

lessen distraction of the user.

Experience has demonstrated that 30 seconds is a reasonable RGS Receiver error timeout property, although

some users adjust this property lower to force connections to close sooner. Higher settings, such as 60

seconds, are often impractical because they force the user to wait an inordinate amount of time before RGS

closes the connection.

RGS Sender network timeout

The RGS Sender supports the RGS Sender error timeout property, Rgsender.Network.Timeout.Error. This

property can be set only by using the rgsenderconfig file or on a command line—the RGS Sender does not

have a dialog to set this property. The RGS Sender error timeout property is independent of the RGS Receiver

timeout properties. The RGS Sender begins by using the maximum of the Rgsender.Network.Timeout.Error

property and the Rgsender.Network.Timeout.Dialog property.

When the RGS Receiver negotiates its connection to the RGS Sender, it notifies the RGS Sender of its error

timeout property. For sync pulse timeout purposes, the RGS Sender adopts the minimum of:

Rgreceiver.Network.Timeout.Error

100 Appendix B Troubleshooting

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