Methods and systems for provisioning different services on passive optical networks or forecasting service profiles for passive optical networks. The provisioning may be based on location, guaranteed bandwidth, or the like.

A network element includes a client port configured to receive a signal for transmission; a line port configured to transmit the signal to a far end via Optical Transport Network (OTN); circuitry configured to communicate one or more of a fault and a status associated with the signal to the far end via OTN overhead. The circuitry configured to communicate can be for the fault and utilizes one or more Tandem Connection Monitoring (TCM) layers in the OTN overhead. The circuitry configured to communicate can be for the status and utilizes one or more of Optical Data Unit (ODU) Performance Monitoring (PM) and one or more Tandem Connection Monitoring (TCM) layers.

A system for enabling deep fiber access to a software defined network includes a hybrid fiber coaxial (HFC) network, a software defined network (SDN) control agent disposed in the HFC network and a core network. The core network includes an IP backbone and an SDN. The SDN control agent receives a notification of a quality of service (QoS) degradation event and the accesses local table rules stored in the SDN control agent to determine whether the local table rules identify an action to implement in response to the notification. When the local table rules identify the control agent action to take in response to the notification implementing the action. When the local table rules do not identify the action to be implemented by the SDN control agent in response to the notification, then the SDN control agent accesses the SDN controller to determine whether the SDN controller can identify a controller action to take in response to the notification.

An apparatus includes a first communication interface configured to be communicatively coupled, via an optical line, to a network device that is disposed in an optical network using wavelength division multiplexing (WDM). The apparatus also includes a second communication interface configured to be communicatively coupled to a router via an Ethernet connection. The apparatus also includes a signal generator operatively coupled to the first communication interface and the second communication interface. The signal generator is configured to generate an Ethernet signal representing at least one attribute of the optical line between the first communication interface and the network device. The second communication interface is configured to transmit the Ethernet signal to the router.

The disclosed systems, structures, and methods are directed to a method for embedding the virtual network onto the elastic optical network comprising embedding the plurality of virtual nodes onto the plurality of substrate optical nodes in accordance with the plurality of location constraints provisioning the primary bandwidth demand associated with one of the plurality of virtual links connecting a source virtual node to a destination virtual node onto a plurality of disjoint substrate paths connecting a source substrate optical node and a destination substrate optical node, and embedding the one of the plurality of virtual links connecting the source virtual node to the destination virtual node onto the plurality of disjoint substrate paths connecting the source substrate optical node and the destination substrate optical node.

Methods and systems for provisioning different services on passive optical networks or forecasting service profiles for passive optical networks. The provisioning may be based on location, guaranteed bandwidth, or the like.

An optical line terminal (OLT) is configured to communicate with optical network units (ONUs) in a passive optical network. The downstream transmission from the OLT to the ONUs are organized in frames including segments, wherein a respective segment is modulated according to at least a first or second modulation format. The OLT is configured to: send, to an ONU, a request to estimate a channel quality based on at least one reference segment modulated according to the second modulation format, the ONU operating according to the first modulation format; receive, from the ONU, a response including an indication of the estimated channel quality; and decide to switch the segments in the downstream transmission assigned to the at least one ONU to the second modulation format based on the response.

One embodiment provides a system and method for managing traffic in a network that includes at least a passive optical network (PON). During operation, the system obtains traffic status associated with the PON, generates a traffic-shaping factor for the PON based on the traffic status, and applies traffic shaping for each optical network unit (ONU) within the PON using the generated traffic-shaping factor. The traffic-shaping factor determines a portion of a best-effort data rate to be provided to each ONU.

A system and method are disclosed for transporting deterministic traffic in a gigabit passive optical network. A system that incorporates teachings of the present disclosure may include, for example, an Optical Line Termination (OLT) for exchanging data traffic in a Gigabit Passive Optical Network (GPON) having a controller programmed to generate a timeslot schedule for transport of a desired bandwidth of constant bit rate (CBR) data traffic by selecting one or more timeslots from periodic frame clusters operating according to a GPON Transmission Convergence (GTC) protocol. Additional embodiments are disclosed.

A method, a controller, and an optical network element are configured to perform steps of monitoring one or more optical links each formed by optical transceivers which are configured to provide variable capacity via a plurality of modulation formats; based on the monitoring, causing corresponding optical transceivers for the one or more optical links to operate at a first modulation format different from a second modulation format providing excess capacity; and mapping the excess capacity to bandwidth useable by one or more services managed by the one or more of the management system, the management plane, and the control plane.