Optical & Fixed Networks

Nokia upgrades RailTel’s optical transport networks across India

Nokia upgrades RailTel’s optical transport networks across India

Nokia announced on Tuesday it has partnered with Indian neutral telecoms infrastructure provider RailTel to upgrade its DWDM National Long-Distance (NLD) network and metro optical transport networks across India.

Under the project, which was undertaken in collaboration with Nokia’s authorized partners, Nokia deployed its 7750 Service Router (SR), integrated with broadband network gateway (BNG) and CG-NAT functionality, which it says enables RailTel’s network to efficiently support enterprise-grade high-speed traffic alongside internal ISP services.

The upgraded network also leverages Nokia’s 1830 Photonic Service Switch (PSS) and advanced transponder technology, which boosts transport capacity while minimizing cost per bit. Nokia said the deployment also introduces high-capacity Lambda transmission and express traffic lanes between cities, which improves overall network performance.

Nokia added that its IP routing and optical transport technologies were integrated seamlessly with RailTel’s existing infrastructure and utilises previously unused channel spectrum. The network was also designed to support a vendor-neutral, open-network approach, paving the way for future innovation and technological advancements across RailTel’s optical footprint.

RailTel Chairman and MD Sanjai Kumar said the updated unified network architecture enhances intercity traffic resiliency and addresses growing demand for high-speed, resilient connectivity, while also improving operational efficiency and reducing costs.

“These enhancements will enable us to deliver superior, faster, and more reliable services to our enterprise and broadband customers across India,” Kumar said in a statement.



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