By Vijoy Pandey,
Publication Date: 2026-03-19 12:00:00
The greatest networking challenges are not solved in pristine labs—they are solved in the real, messy world. Actual operating conditions, with all their noise and unpredictability, are the ultimate test for any new technology aiming for practical use.
Recently, we took a monumental step in proving the viability of quantum networking by moving it out of the controlled environment and onto standard fiber that runs alongside other telecom traffic beneath the streets of Manhattan, Brooklyn, and the Hudson River, including traversing the historic and storied carrier hotel at 60 Hudson.
Just as Cisco helped build the networking fabric for the classical internet, we have been building the foundation for the quantum era through our Cisco Quantum Labs, our quantum network entanglement chip, and the quantum networking software stack we’ve developed over the past several years.
This experiment is the latest milestone in that journey, and it…