Traffic

Traffic Administration

Traffic Administration The OMN:EXCH-TR comprises the functions to be carried out in the exchange within the scope of traffic data recording. Traffic data recording is divided into the following : 1. Traffic Measurement 2. Traffic Data Monitoring 3. Traffic Structure Measurement 4. Traffic observation 5. Directory Number Observation

Traffic Administration 1. Traffic Measurement Measures events and status duration, e.g., -Number of successful seizures of CRs in an LTG -Number of delays during the seizures of code receivers in an LTG -Number of incoming seizures from subscriber without dial signal etc.

Task: Traffic measurement provides data for the planning and operation of the exchange and the network.

Traffic Administration 2

Traffic Data Monitoring

Periodically compares software meter status with predefined threshold value. If the threshold value is exceeded, messages and data will be displayed that may indicate the call-processing problems.

Task: Traffic overload may management measures.

be

prevented

by

traffic

Traffic Administration •

Traffic Structure Measurement Collects the data of individual calls in the form of data records, or records data concerning traffic flow.

Task: The purpose of traffic structure measurement is to supply information about the volume, distribution and success of switching operations.

Traffic structure measurement is divided into: -Trunk group traffic structure measurement -Total traffic structure measurement -Originating traffic structure measurement

Traffic Administration 4. Traffic observation Records call-related data & utilisation of affected objects.

Task:

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The objective of traffic observation is to record and output values and data observed during the processing of statistically selected calls to analyse the following: system and network behaviour system performance grade of service quality of service traffic structure subscriber or signalling behaviour

Traffic Administration   5. Directory Number Observation Records call related data of subs. or PBX lines under obs. by ordinary calls or subs. controlled inputs,e.g.: - Directory number - Local area code - Types of line - Seizure time - Call duration - Traffic type - Service - Subscriber feature

 Task : The objective of directory number observation is to get a closer analysis of subscriber behavior.

Traffic Measurement • The traffic measurement for single objects is activated via traffic measurement orders. • The measured data is object-related. • Measurements may be taken on the following objects:

Traffic Object

Command to initiate the traffic measurement

Destinations

REC DEST

Announcement groups

REC ANGRP

Private branch exchange

REC PBX

Subscriber

REC SUB

DLU

REC DLU

Traffic Measurement Trunk group

REC TGRP

LTG

REC LTG

Discarded CCS7 message signal units

REC C7 DCD MSU

CCS7 destination point traffic data

REC C7 DP

CCS7 route set traffic

REC C7 RSET

CCS7 signaling link grade of service

REC C7 GOS

CCS7 signalling link load

REC C7 L LOAD

Co-ordination processor

REC CP

Traffic flow

REC TRAFLOW ENTR ADPH MEAS

Peak hour

Traffic Measurement Service application frequency Exchange grade of service

REC SAF

V5.2 interfaces

REC V5IF

Subscriber

REC DN

Load on D-channel

REC IBADCH

REC EXCH

Procedure for Traffic measurement -Call processing programs count the events and measure the status duration in the GP and CP, e.g. no. of seizures in GP. -The call processing programs transfer the collected data to a buffer (traffic data saving). -The traffic measurement recording programs read out the buffered data from the traffic data buffer and transmit it to the system disk File name = TS.