en.Wedoany.com Reported - China Telecom and Huawei jointly announced at the main forum of the 2026 China Optical Network Symposium that they have achieved 50ms WSON deterministic recovery in a multi-node MESH networking environment, a first in the industry. Focusing on China Telecom's "Next-Generation Optical Network" original technology source construction direction, the two parties jointly developed a "high-reliability WSON optical network system" and completed the world's first multi-node mesh (MESH) wavelength switched optical network (WSON) 50ms deterministic recovery verification.
Wavelength switched optical networks are the core infrastructure supporting computing interconnection, cloud-network integration, and enterprise private lines. Traditional WSON systems, when dealing with fiber cuts or node failures, must sequentially complete alarm detection, path recalculation, protocol processing, wavelength selective switch switching, and optical transport unit response. Constrained by algorithm efficiency, device response, and network topology, the fault recovery time is difficult to precisely control, especially in complex multi-node networking where self-healing capabilities are insufficient.
The announced results adopt a collaborative mechanism of "AI algorithm + ultra-fast WSS + fast OTU," combining centralized and distributed control features to break the traditional serial processing flow. By introducing technologies such as AI path computation, ultra-fast WSS optical layer switching, and fast OTU response, the fault handling logic is reconstructed from the bottom layer, compressing the optical layer rerouting recovery time in multi-node networking to within 50 milliseconds.
The verification test set up an 8-node MESH complex mesh topology, with the longest service transmission link reaching 660 kilometers, and simulated multiple consecutive fiber break faults. Measured data shows that the system can stably achieve 50ms deterministic rapid self-healing under harsh conditions such as long distances, multiple routes, and consecutive faults, demonstrating the potential for large-scale deployment and commercial application in operator live networks.
China Telecom stated that it will continue to rely on the "Next-Generation Optical Network" original technology source to advance the iteration and upgrade of high-reliability WSON technology, focusing on scenarios such as intelligent computing center interconnection, computing power scheduling, cloud-network integration private lines, and key industry bearing, to conduct live network verification with larger networking scales, more complex topological structures, and diverse services. Through continuous technological breakthroughs, it aims to drive the evolution of traditional optical networks from a single bandwidth transmission carrier to an intelligent basic bearer network with high reliability, low latency, flexible scheduling, and deterministic latency, providing support for the high-quality construction of China's computing infrastructure.
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