haring of that link with other traffic. For example, a link may have enough bandwidth at a certain moment but, minutes later, OSS for Telecom Networks best effort traffic may consume the bandwidth available on the link so that the path used by the LSP is congested. A traffic engineering solution should measure and pre- dict bandwidth utilization of all existing LSPs and derive the traffic matrix from this. It should also measure the bandwidth utilization of all links to detect congestion. If the traffic matrix changes significantly SO that an LSP configuration ceases to be optimal, then the LSPs should be re-routed by a central traffic management to reach a new optimal LSP configuration. On the other hand, if the bandwidth for traf- fic engineered LSPs is decreasing, a traffic engineering tool may decide to reroute certain LSPs to steer them clear of congested links, possibly making those links less congested. Service-aware traffic engineering is a solution that comprises intelligent per- formance management, link utilization monitoring, LSP bandwidth monitoring and the ability to optimise dynamically the configuration of LSPs. It is clear that performance management goes hand-in-hand with traffic manage- ment. However, performance is the end-goal of traffic management and there are many metrics for performance. Indeed, it may be that performance management software sets the parameters by which traffic management software operates. The traffic management software serves the performance management software. In turn, the network manager sets the performance metrics where they need to be in order to meet prevailing business goals, the most obvious of which are SLAs and guaranteed services. 13.6.5 Dyband Corporation Dyband intelligent IP traffic management enables service providers to control bandwidth consumption by IP address for up to 50 000 individual subscribers and/or groups. By evaluating the bandwidth capacity/demand ratio 100 times per second, Dyband can shape individual and aggregate bandwidth usage based o