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Coriant adds hierarchical controller to SDN software suite

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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