o simultaneous connections You will simulate to check that the SDL model can handle two connections in parallel. A. If the Simulator is already running, jump to E. B. In the SDL Editor, unload all files except v76.pr. C. If the ObjectGeode Launcher is not running, in the Editor select Tools > SDL & MSC Simulator. D. In the ObjectGeode Launcher, press the Build button, then if you do not get any SDL errors, press the Execute button. 90 Validation of Communications Systems with SDL E. The Simulator starts: press on SDL Tracking and on Start MSC. F. In the Editor, close the Framework view and select Window > Tile Horizontally, to obtain the screen shown in Figure 4.38. G. Load and replay the scenario cnx1.scn, as indicated for retryl.scn in Section 4.3.3.4: now one instance of process DLC exists on each side of the system. Now establish one more connection: H. Execute the transition dlca!dispatch: from_ready_input_l_estabreqwith l_estabreq(1) from env_dlcasu (double-click it in the Simulator list, as shown in Figure 4.57). You see in the MSC trace that a new instance of process DLC is created, numbered 2. F:ADONNEESITRANSMETAlivreSimul\modelsOGW76\v76 File Edt View Execute Tools Help About selection: step = 15 Stop if Filter trans dlcaldic(1) from_waitua_iput_v76frame Watch Print + INPUT V76frame (V76para); input v76frame from dicaldispatch to dicaldic(1) Traces: present = ua Defaults Off dlci=0 Save Restore SDL tracking Firable Transitions: Start MSC dicaldispatch from_ready_input_|_datareq with 86) from env_dicasu Watch. dicaldispatch from_ready_input_|_datareq with I_datareq(1 39) from env_dicasu dicaldispatch from_ready_input_|_estabreq lestabreq(0) from env_dlcasu MSC-driven: ^dicaldispatch from_ready_input_l_estabreq with Lestabreq(1) from env_dicasu Activate dicaldispatch from_ready_input_l_setparmreq. I_setparmreq from env_dicasu dicaldispatch from_ready_prionity_input_l_releasereq with |_releasereq(1) from env dicbidispatch from_ready_priority_input_l_releasereq with l_releasereq(0) from env Redo: 15/16 Now