Coriant adds hierarchical controller to SDN software suite

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Coriant has expanded its Transcend Software Suite with the introduction of the Transcend Hierarchical Controller, which is designed for enhanced orchestration of multi-layer, multi-domain, and multi-vendor transport networks.

The Coriant Transcend Hierarchical Controller exploits software-defined networking (SDN) automation and programmability to provide a foundation for rapid service activation and resource efficiencies in integrated IP-optical networks. It can accelerate service activation, optimise Layer 0-3 resource allocation and resiliency, and improve multi-vendor interoperability and end-to-end control in open, disaggregated network environments.

“As more and more IP and optical elements become virtualised and distributed, network operators need a more efficient and flexible way to manage and orchestrate a diverse ecosystem of service-dependent transport resources,” said Uwe Fischer, executive vice president, R&D and PLM, and chief technology officer, Coriant. “Our new SDN Hierarchical Controller significantly enhances efficiencies in integrated IP-optical networks with advanced automation and programmability.”

The Transcend Hierarchical Controller is a central element of an integrated control structure. It gathers inputs from optical, packet-optical, or IP/MPLS SDN domain controllers and builds a stateful topological view based on a multi-layer data model. This multi-layer control structure enables a broad range of network configuration, visualisation, and reporting functions for advanced multi-layer and multi-domain networks.

By supporting open interfaces to domain controllers, this approach enables both Coriant and third-party networks to be integrated into a single network control environment.

Key features of the Coriant Transcend SDN Hierarchical Controller include the Context Optimized Routing Engine (CORE) to provide path computation for multi-layer performance-aware services, and Shared Risk Link Group (SRLG) awareness of transport services to support optimised resource assignment and multi-layer service status aware routing.

These new capabilities are a key part of Coriant’s Hyperscale Carrier Architecture, which provides operators with a pragmatic means to transform their multi-layer infrastructure for a new generation of end-user services, including 5G, IoT, and virtual reality.

Coriant will showcase its SDN-enabled packet optical transport portfolio and Hyperscale Carrier Architecture at the Next Generation Optical Networking (NGON) conference, which takes place from 20-22 June in Nice, France, on stand C11.

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