Creating a ttgen Configuration File

The ttgen configuration file configures how the ACC MUX cards will be used. The ACC protocol accessory products may provide a template configuration file. If none is provided, /opt/acc/cfg/loopback.answ (a file which is created when the ACC product is installed) can be used. (Note that this file is shown in Appendix A “Files, Utilities, and Daemons”.) The ttgen configuration files are typically located in the /opt/acc/cfg directory.

The loopback.answ file name should only be used for files that are created using the acc_bld_lpbk script per the following:

%cd /opt/acc/cfg 
%/opt/acc/lbin/acc_bld_lpbk -o loopback.answ -t sample_header\			
	-p loopback 

The “TTGEN - ZCOM System Table Generator” chapter of the ACC Utilities Reference Guide should be consulted for details on what each of the configuration fields mean and how they should be set. The manuals provided with the ACC protocol accessory products should also be consulted for protocol-specific configuration requirements.

Once the ttgen configuration file is created, ttgen must be run, for example:

% cd /opt/acc/cfg
% /opt/acc/bin/ttgen -o loopback.answ loopback.tmem
ttgen: END$  0 Disasters, 0 Errors, 0 Warnings
%

The ACC MUX subsystem can now be brought up using this new .tmem file. The /opt/acc/cfg/zmasterd_list should be updated with the new .tmem file that will be used. The zmasterd daemon will then use this file in the case that the zmon daemon terminates unexpectedly and needs to be restarted.