  We demonstrated for the first time quantum-safe high-speed 100 Gbps
site-to-site IPsec tunnels secured using Quantum Key Distribution (QKD)
technology. The demonstration was conducted between two JPMorgan Chase Data
Centers (DCs) in an air-gapped environment over 46 km of deployed telecom fiber
across Singapore achieving 45 days of continuous operation. Two different
Virtual Private Network (VPN) tunnel configurations were tested: (1) a
QKD-secured VPN tunnel configuration with a maximum throughput of 80 Gbps and
(2) a multi-VPN tunnel configuration exhibiting 12 QKD-secured VPN tunnels with
a throughput of 8.39 Gbps per tunnel resulting in an aggregated throughput of
99.62 Gbps for all tunnels. For the QKD system performance, we achieved an
average Secret Key Rate (SKR) of 7.4 kbps (about 29 AES-256 keys per second),
an average Quantum Bit Error Rate (QBER) of 0.8% and an average visibility of
98.6%. We utilized the ETSI-QKD-014 REST-based Application Programming
Interface (API) to exchange the QKD generated keys between the key management
server in the QKD system and the next-generation firewalls in order to encrypt
and decrypt the data. The data was encrypted by the quantum-safe keys using the
AES-256-GCM cipher suite with a key refresh rate of 120 seconds without
affecting the VPN tunnel connectivity and performance
