Technical data

l<frame_length>

Optional Length of the test frame. It is normally not used by the test server but it should

be provided if the -s option follows

-s<rate> Optional Speed adaptation rate. This parameter should be indicated if the v110 B-channel

protocol is used without auto detection. It should range between 2 and 9 (5-9600,

9-56000). If this option is selected, the "-l" option should also be used

tty_test in client mode

The test client can be started with the following commands:

Command Description

tty_test <tty_nr> <CPN> <protocol>

[-l<frame_length> -s<rate>] [-

a<at_command>] [-y] [-m<packets>]

This command starts a test client on your console.

tty_test <tty_nr> <CPN> <protocol>

[-l<frame_length> -s<rate>] [-

a<at_command>] [-mpackets] -x&

This command starts a test client in the background. In this mode,

the test client detaches from your console and does not display any

output. It generates a file named log.<tty_nr> in its working

directory. The test client reports its link statistics to this file. You

can monitor the link statistics by the command strings log.* |

more.

Note: The tty_test updates the log files after 64 KBytes of data have been transferred. Therefore, please be

patient if you use, e.g., the V.110 protocol with 9600 bps.

To get information about the test client started in the background, type: ps ax | grep tty_test.

To safely stop the test client running in the background, use the "HUP" signal (kill -HUP process_number or

killall -HUP tty_test). The tty_test utility understands the commands HUP, TERM, ABRT and INT. These

commands terminate the tty_test utility.

Parameters for the tty_test in client mode

Parameter Level Description

tty_nr Mandatory Dialogic

Diva

TTY number that should be used by this test server. It should

range between 1 and N, where N is the sum of B-channels of the Dialogic

Diva

Media Board installed in the system.

CPN Mandatory Called Party Number (any number can be used in back-to-back mode)

protocol Mandatory

Value Description

hdlc HDLC/Transparent/Transparent. This protocol stack is widely used by

RAS.

x75 HDLC/X.75/Transparent. This protocol stack provides reliable data

transfer. V.42bis compression is detected automatically.