Abstract: A system implementing a method for determining QoS degradations comprises: receiving alarms (a) from application layer or from network nodes of a MPLS network, including Passive Traffic Analyzer, Physical Layer Monitoring and MPLS OAM nodes, depending on the alarm, the system requests testing (d) for location and the network nodes answer back with location (e), once the fault is located, the system starts traffic restoration (h) via MPLS Signaling and receives the result (i), the system may need to consult the System Database, optionally query (b)—reply (c) step before requesting location, while query (f)—response (g) step is mandatory before restoration (h), once traffic restored, further testing by the network nodes and/or the application layer are triggered (j) by the system to ensure the correct overall QoS within the new network situation, a loop (i) of further restoration can be triggered by the system until a global stable non-degraded behavior is declared.

Abstract: A method for improving the network resources allocation in a TISPAN network, when a network user requests at least one communication service between an access node of the TISPAN network and a destination node, the TISPAN network using MPLS packet based transport technologies and GMPLS circuit switched based transport technologies. The proposed invention defines a communication procedure between TISPAN service layer architectures and multilayer GMPLS network architectures WSON). It aims to minimize total network resources consumption of increasing traffic demands with different requirements in terms of bandwidth and QoS.