Traffic Analysis
The department Switched Network
Planning at the company o.tel.o communications needs information
about the geographical distribution of traffic for the exactly
dimension of network capacity. The Traffic Analysis Tool trafan
offers the possibility, to comprehend the current traffic
distribution of the network. Base for it is the CDR (Call Detail
Record), which is generated by switch nodes for recording call
procedures. The evaluation of CDR results information such as
geographical distribution of traffic, traffic profile, traffic
matrix, distance distribution etc.. These information along with
traffic forecast are used by network designer for dimensioning
the capacity of switch nodes and link trunks.
The advantages of the use of CDR as base for the traffic model are:
- Traffic model with better accuracy.
- The possibility to transfer the market forecast into more precise traffic growth, so the requirements of network capacities can be specified more exactly.
- The possibility of validating the traffic forecast from the product development.
Outline of the processes
The CDR is supplied by the department CCS/CMS each Wednesday, on request also once weekend in the month. From the CDR database the effective CDR, which was generated for successful calls, is read in and stored into a ASCII file. Afterwards the file is stored on the network drive, on which only the departments CCS/CMS and Switched Network Planning have the access.