>> Study Group 2 : Operational aspects of service provision, networks and performance
Question 7/2 – Traffic engineering
- Motivation
Traffic engineering methods are essential for design, planning and operation of networks. The methods include:
- definition of appropriate performance parameters and the assignment of target values;
- specification of traffic and performance measurements;
- traffic modelling to characterize the demand for resources;
- definition of reference configurations for signalling and intelligent networks including interworking with MPLS/IP-transport infrastructure;
- dimensioning methods to determine the quantity of resources needed to handle demand whilst meeting defined performance objectives and cost requirements;
- definition of appropriate traffic and congestion controls to safeguard performance in case of failure or overload.
With the evolving technology, the new emerging services and applications, especially those that travel IP-based and Next-Generation Networks, and the deregulated and competitive environment, there is a need for new traffic engineering methods, including for signalling networks and IN on IP-based and next generation networks. Especially the interworking situation has to be taken into account.
- Question
Considering the above factors, what new or revised Recommendations are required describing traffic engineering methods for the design, planning and operation of transport, signalling and intelligent networks?
What existing Recommendations on traffic engineering methods for transport, signalling and intelligent networks need revising or deleting because they are no longer useful?
What tutorial material on ITU-T Recommendations on traffic engineering for operational networks is required?
- Tasks
To provide new and revised Recommendations which describe traffic engineering methods for transport and signalling networks with special emphasis on aspects relating to MPLS/IP-based networks. In parallel, tutorial material on the ITU-T Recommendations on traffic engineering for operational networks will be provided.
- Relationships
4.1 Within Study Group 2
A close liaison is required with the other Questions of Study Group 2 having activities closely related to traffic engineering, in particular those on routing (Question 2/2), Quality of Service (Question 4/2) and Network Traffic Management (Question 5/2).
4.2 Within ITU
- ITU-T SG4 on TMN.
- ITU-T SG11 on B-ISDN, signalling, switching and Intelligent Network.
- ITU-T SG13 on ATM and MPLS/IP-based networks, B-ISDN and next-generation network (NGN) aspects, including network performance requirements.
- ITU-T SG15 on transport infrastructure.
- ITU-T SG16 on signalling requirements for IP-based services and speech/video encoding techniques with a potential for use in wireless communications.
- ITU-R TG 8/1 on FPLMTS and service quality aspects of the IMT-2000 family.
4.3 With other groups
- IETF particularly the Transport Area and the Operations and Management Area.
- International Teletraffic Congress.
- Other international standardization and consensus building bodies (e.g. 3GPP, 3GPP2, ETSI, UMTS Forum, IETF, etc.).
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