Abstract: The method comprising: receiving, a controller (106), traffic packets from a device, each one of said traffic packets including a VLAN tag indicating a destination of a second device; analyzing, by a first monitoring unit (101) during a period of time, the bytes content of said received packets and reporting said analysis to said controller (106); receiving, said controller (106), said plurality of different subcarriers to be used for said sending; adding, by a tag unit (102), an embedded S-VLAN tag to said analyzed packets identifying to which subcarrier and to which sliceable bandwidth variable transponder (105) each tagged traffic packets per destination is going to be sent; sending said S-VLAN tagged traffic packets to a switch (104), the latter forwarding them to a given port of said identified sliceable bandwidth variable transponder (105) for sending them via different sub-carriers to its corresponding destination, said plurality of different sub-carriers following a same or different path.

Abstract: The method comprising: receiving, a controller (106), traffic packets from a device, each one of said traffic packets including a VLAN tag indicating a destination of a second device; analyzing, by a first monitoring unit (101) during a period of time, the bytes content of said received packets and reporting said analysis to said controller (106); receiving, said controller (106), said plurality of different subcarriers to be used for said sending; adding, by a tag unit (102), an embedded S-VLAN tag to said analyzed packets identifying to which subcarrier and to which sliceable bandwidth variable transponder (105) each tagged traffic packets per destination is going to be sent; sending said S-VLAN tagged traffic packets to a switch (104), the latter forwarding them to a given port of said identified sliceable bandwidth variable transponder (105) for sending them via different sub-carriers to its corresponding destination, said plurality of different sub-carriers following a same or different path.

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.

Abstract: The procedure comprises using a pre-planned path restoration scheme for computing in advance, or pre-calculating, recovery paths for recovering failed working paths, and particularly comprises pre-calculating a set of recovery paths for each working path linking an origin node with a destination node, and simultaneously using the recovery paths of the set of recovery paths to try to communicate the origin node with the destination node, in case of one or more failures have been produced in the working path. The system is arranged for pre-calculating a set of recovery paths for each working path and simultaneously using them to recover a working path failure, and is apt for implementing the procedure.

Abstract: The present invention relates to a system and method for distributing digital signals over wavelength-switched optical transport networks with long-distance optical multicasting capability comprising a transmitter module and a receiver module in the headend of primary network and in the local node, respectively, for multicasting IPTV channels with HDTV, UHDTV and 3DTV signals. The transmitter module comprises an Ethernet switch, three DPSK modulators and a DWDM optical multiplexer. The receiver module comprises an Ethernet switch, three DPSK demodulators and a DWDM optical demultiplexer. In a novel manner, both modules combine 2 Gbps digital transmission, RZ-DPSK modulation and optical multicasting over a wavelength-switched optical network, WSON.