First Demonstration of Dynamic Deployment of SDN-enabled WDM Virtual Network Topologies (VNTs) over SDM networks

Dynamic Reconfiguration of WDM Virtual Network Topology over SDM Networks for Spatial Channel Failure Recovery with gRPC Telemetry

“…1b. For detailed information on the involved steps refer to [2]. Once the WDM VNT is deployed, the SXC Telemetry Collector subscribes to the SXC Telemetry Agents to get the telemetry data (e.g., OSNR) for the provisioned spatial channels used as virtual WDM links.…”

“…We presented for the first time the concept of SDN-enabled WDM virtual network topologies (VNTs) over SDM networks in [2]. An SDN-enabled WDM VNT can be deployed as a set of physical WDM nodes (i.e., ROADMs/OXCs) controlled by an SDN controller, and spatial channels providing connectivity between the ROADMs/OXCs, that are handled as virtual links in the WDM layer network, following a similar strategy as done for IP over WDM.…”

“…We have proposed a cloud-native WDM over SDM (WDMoSDM) SDN orchestrator responsible for the lifecycle management of the SDN-enabled WDM VNTs. In [2], we experimentally validated the provisioning and removal of SDN-enabled WDM VNTs by deploying virtual links between ROADM/OXC nodes using spatial channels. In this paper, we propose and experimentally validate the reconfiguration of SDN-enabled WDM VNTs in response to spatial channels failures.…”

“…Dynamic reconfiguration of WDM VNTs for spatial channel failure recoveryFirst, the network operator defines the logical WDM VNT (i.e., involved physical WDM nodes and virtual WDM links), and then, it requests the deployment from the WDMoSDM orchestrator, as shown in Fig.1b. For detailed information on the involved steps refer to[2]. Once the WDM VNT is deployed, the SXC Telemetry Collector subscribes to the SXC Telemetry Agents to get the telemetry data (e.g., OSNR) for the provisioned spatial channels used as virtual WDM links.…”

Dynamic bypass of wavelength switching in SDN-enabled WDM VNTs over SDM Networks with high bit-rate optical channels

“…We presented for the first time the concept of SDN-enabled WDM virtual network topologies (VNTs) over SDM networks in [3]. An SDN-enabled WDM VNT can be deployed as a set of physical ROADMs controlled by an WDN VNT SDN controller, interconnected with virtual WDM links dynamically deployed as spatial channels in the SDM network, controlled by an SDM SDN controller.…”