Filter protocol: Start Delay and Stop Delay actionThe combination of a Start Delay action and a Stop Delay action allows to measure the time delay between two particular events generated:
Five Start Delay actions and five Stop Delay actions can be specified independently for five different delay measurements. They are numbered from 1 to 5 and their identification can be customized.
Protocol without multiplexing capability
The Start Delay i and the Stop Delay i actions refer to selection conditions basically specified and the delay calculated is between two particular events taken into account as soon as encountered.
Protocol with multiplexing capability on a control-field value
Multiplexing capability allows to supervise and generate a family of delays (maximum 100) between pairs of events which match the selection conditions of the Start Delay i and the Stop Delay i actions.
The Start Delay i and the Stop Delay i actions refer to selection conditions basically specified. The delays calculated are between pairs of events which both refer to a particular control-field value additionally specified (X25 LCN, Q931 Call Reference, Frame Relay DLCI) in the protocol filter.
To avoid any congestion of the delay calculation resources, a delay time-out can be defined between a START DELAY system event generated by the Start Delay i action and the related STOP DELAY system event expected to be generated by the Stop Delay i action.
The delay measure, in progress between events in protocol recording mode, which overtakes this limit, may be cancelled in order to free a delay calculation resource and makes a new delay measure possible to be initiated. A KILL DELAY system event is then generated to report the freeing of a delay calculation resource.