Broadband Analyzer/Generator ANT-20/ANT-20EA-26 Application GuideTo stop the analysis⇒ Click the “Cancel” button (e.g. if “Unchecked” entries appear in the list).– or –The analysis stops automatically when all channels are analyzed again.3.4.3 Displaying the AAL Type DistributionDetermine and display the distribution of active ATM channels according to AAL types.To start the analysis⇒ Click the above icon button of the toolbar or click the item “AAL Type Distribution” in the“Analyse” menu.The “AAL Type Distribution” window showing the current distribution of active channelsaccording to AAL types is displayed.– The pie chart gives a dynamic overview– The table lists percentage values to give a quantitative displayFig. A-32 AAL type analysisAttribute MeaningAAL 1 Constant bit rate channel (AAL type 1, service class A)AAL 3/4 Data services channel (AAL type 3/4, service class C, D)AAL 5 Channel with simplified protocol for rapid data communications (AAL type 5, serviceclass C)Unchecked The channel was not checked for AAL type. Reason: User aborted analysis.Undet. Channel cannot be analyzed or assigned to a particular AAL type. Reason: unknownAAL type or no activity in channel.Table A-4 AAL type display after an AAL analysisPie chartTable
