An example system includes a plurality of network nodes, each including one or more respective first transceivers configured to transmit data according to a first maximum throughput, and one or more respective second transceivers configured to transmit data according to a second maximum throughput that is less than the first maximum throughput. A first network node is configured to transmit, using a respective one of the first transceivers, first data including a plurality of optical subcarriers to two or more second network nodes according to the first maximum throughput, each optical subcarrier being associated with a different one of the two more other network nodes. The two or more second network nodes are configured to receive, using respective ones of the second transceivers, the first data from the first network node.

An example system includes a first network node, a second network node, and a third network node. The first network node is configured to generate a first optical subcarrier representing first data, and transmit the first optical subcarrier to the second network node. The second network node is configured to receive the first optical subcarrier from the first network node, generate a second optical subcarrier representing the first data, where the second optical subcarrier is different from the first optical subcarrier, and transmit the second optical subcarrier to the third network node.

A method for managing a telecommunication network comprising the steps of identification, by the central controller, of an updated condition of availability of resources of the network, and association of a plurality of updated sequences of instructions, comparison of the plurality of updated sequences of instructions with a plurality of not updated sequences of instructions associated with the last condition of availability. In case that the plurality of updated sequences of instructions is different from the plurality of not updated sequences of instructions, a step is provided of sending an updated sequence of instructions to each nodal device, on the basis of the service class of the data traffic of the device. A step is furthermore provided of checking, by the local controller, a condition of service of the data traffic at time ranges , said updated sequence of instructions associating to each condition of service an optimal working status to be attributed to the data traffic. A step is then provided of comparison of the condition of service with an optimal condition of service and, in case that the condition of service is different, a step is provided of starting, by the local controller, the updated sequence of instructions for changing a status of the data traffic. It is further provided a step of sending to the central controller data concerning the change of the working status.

A switch system includes interface circuitry configured to ingress and egress clients each including a stream of encoded blocks; and switch circuitry configured to switch the clients between the interface circuitry based on block boundaries of the stream of encoded blocks. The stream of encoded blocks can include 64 b/66 b encoding. Each block in the stream of encoded blocks can be switched intact.

A switch system configured to switch Flexible Ethernet (FlexE) client services includes interface circuitry configured to ingress and egress FlexE clients; and switch circuitry communicatively coupled to the interface circuitry and configured to switch portions of the FlexE clients utilizing a cell switch and Optical Transport Network (OTN) over Packet (OPF) techniques. A method of switching Flexible Ethernet (FlexE) client services includes ingressing and egressing FlexE clients via interface circuitry; interfacing the FlexE clients with switch circuitry communicatively coupled to the interface circuitry; and switching portions of the FlexE clients with the switch circuitry utilizing a cell switch and Optical Transport Network (OTN) over Packet (OPF) techniques.

A method for managing a telecommunication network comprising the steps of identification, by the central controller, of an updated condition of availability of resources of the network, and association of a plurality of updated sequences of instructions, comparison of the plurality of updated sequences of instructions with a plurality of not updated sequences of instructions associated with the last condition of availability. In case that the plurality of updated sequences of instructions is different from the plurality of not updated sequences of instructions, a step is provided of sending an updated sequence of instructions to each nodal device, on the basis of the service class of the data traffic of the device. A step is furthermore provided of checking, by the local controller, a condition of service of the data traffic at time ranges , said updated sequence of instructions associating to each condition of service an optimal working status to be attributed to the data traffic. A step is then provided of comparison of the condition of service with an optimal condition of service and, in case that the condition of service is different, a step is provided of starting, by the local controller, the updated sequence of instructions for changing a status of the data traffic. It is further provided a step of sending to the central controller data concerning the change of the working status.

A switch system configured to switch Flexible Ethernet (FlexE) client services includes interface circuitry configured to ingress and egress FlexE clients; and switch circuitry communicatively coupled to the interface circuitry and configured to switch portions of the FlexE clients utilizing a cell switch and Optical Transport Network (OTN) over Packet (OPF) techniques. A method of switching Flexible Ethernet (FlexE) client services includes ingressing and egressing FlexE clients via interface circuitry; interfacing the FlexE clients with switch circuitry communicatively coupled to the interface circuitry; and switching portions of the FlexE clients with the switch circuitry utilizing a cell switch and Optical Transport Network (OTN) over Packet (OPF) techniques.

A Flexible Ethernet (FlexE) switch system configured to switch a FlexE client service includes interface circuitry configured to ingress and egress a plurality of FlexE clients; and switch circuitry configured to switch portions of the FlexE clients based on 64 b/66 b block boundaries between the interface circuitry. A node configured to switch a Flexible Ethernet (FlexE) client service in a network includes one or more line cards configured to ingress and egress a plurality of FlexE clients; and one or more switch fabrics configured to switch portions of the FlexE clients based on 64 b/66 b block boundaries between the one or more line cards.

A Flexible Ethernet (FlexE) switch system configured to switch a FlexE client service includes interface circuitry configured to ingress and egress a plurality of FlexE clients; and switch circuitry configured to switch portions of the FlexE clients based on 64b/66b block boundaries between the interface circuitry. A node configured to switch a Flexible Ethernet (FlexE) client service in a network includes one or more line cards configured to ingress and egress a plurality of FlexE clients; and one or more switch fabrics configured to switch portions of the FlexE clients based on 64b/66b block boundaries between the one or more line cards.

An example node includes a receiver, a switch circuit, and a transmitter. The receiver is configured to receive a first modulated optical signal including a first plurality of optical subcarriers, and supply a plurality of data streams based on the first plurality of optical subcarriers. Each of the data streams is associated with a corresponding one of the plurality of optical subcarriers. The switch circuit is configured to receive the data streams, and supply the data streams to a plurality of switch outputs. The transmitter is configured to receive the data streams, and supply a second modulated optical signal based on the data streams. The second modulated optical signal carries a second plurality of optical subcarriers. Each of the second plurality of optical subcarriers is associated with a corresponding one of the data streams.