Using lapddemo

Perform the following steps to run lapddemo:

Step

Action

1

Set up the board keyword file to describe the board and software configuration. For more information, see the NMS ISDN Installation Manual and the NMS OAM System User's Manual.

2

Run oamsys to initialize your hardware and make your configuration file changes effective.

3

If necessary, modify the demonstration configuration file lapddemo.cfg. For more information, see lapddemo configuration file.

4

Start the demonstration by entering:

lapddemo [options]

where options are one or more of the command line options described in the lapddemo overview.

lapddemo sends a SABME message on the trunk to establish the data link.

5

Press S.

The program sends a SETUP message with a called number value, a calling number value, a B channel number, and an encoding flag. These values are specified in lapddemo.cfg.

The default values are:

Called number value: 12345

Calling number value: 678

B channel number: 12

Encoding flag: A law


If the data link is established, the program exchanges Q.931 messages with the remote party, as described in the configuration file. By default, the following exchanges are made:

If...

lapddemo...

SETUP is received

Sends an ALERTING message, and then a CONNECT message.

CONNECT ACK is received

Starts timer T.

Timer T expires

Sends a DISCONNECT message.

DISCONNECT is received

Sends a RELEASE message.

RELEASE is received

Sends a RELEASE COMP message.