Tag: 400G

Speed race: Just as 400Gb Ethernet gear rolls out, an 800GbE spec is revealed

Just as the stage is set for 400G Ethernet (GbE) to roll out in force later this year, mainly in hyperscale, telco and large data-center networks, there is a call to boost that speed to 800GbE or even higher in the coming years.The need for increased speed in data centers and cloud services speeds is driven by many things including the continued growth of hyperscale networks from players like Google, Amazon and Facebook, but also the more distributed and mobile workloads modern networks support. But the reality on the ground is that much lower speeds are what’s commonly in use.

400GbE-LR8 QSFP-DD compact pluggable interfaces succeed in client-side services trial

Windstream Wholesale and Infinera marked an industry-first with their successful trial of LR8-based 400GbE client-side services. The trial was powered by Infinera’s Groove G30 platform. The trial leveraged Infinera’s commercially available 2x 600G Wavelength muxponder on its Groove (GX) G30 Compact Modular Platform with the CHM-2T sled, which enabled the customer-facing 400GbE service to be transmitted using a single-carrier 600G wavelength.

Fiber Type Matters When Simulating Optical Links and Latency

Simulating real-world fiber optic links and time delays in the lab environment is both a frequent and necessary task for engineers performing R&D and equipment certification testing processes.  With the evolution to more advanced network architecture, increasing speeds of 400G and beyond, and latency always being a key element, replicating the field network as closely as possible in the lab is critical to ensure systems will perform as expected post-deployment. 

Nokia boasts of 1.52 Tbit/s over single mode fiber

Nokia said it recorded speeds four times above the market’s current standard of 400 Gbit/s over fiber, transmitting at 1.52 Terabits per second (Tbit/s) over 80 km of standard single mode fiber — the equivalent of simultaneously streaming 1.5 million YouTube videos – which is four times the market’s current state-of-the-art of approximately 400 Gigabits per second.

400G QSFP-DD DR4 module is powered by silicon photonics technology

Hengtong Rockley has released a 400G QSFP-DD DR4 optical module based on silicon photonics technology geared for cloud data center networks. The new 400G QSFP-DD module is the company’s first 400G silicon photonics optical module product and is intended for use in next generation cloud-scale data center networks for low-cost, low-power consumption optical connections between switches. The deployment of such 400G transceivers will enable data center networks to deliver a 4x increase in network speed compared to existing deployments using 100G.