Upgrade: 100G Networks and Beyond with Installed-Base Multimode Fiber

Global IP traffic has been increasing rapidly in enterprise and consumer segments, driven by growing numbers of Internet users and connected devices, faster wireless and fixed broadband access, high-quality video streaming and social networking.

Data centers are being built to support the more robust computing, storage and content delivery services these users require.

Since 2016, 25G/50G server ports and 100G switch (ToR, leaf, spine and core) ports have become ubiquitous in most hyperscale data centers, replacing previous 10G servers and 40G switches. This speed migration has boosted overall system throughput by 2.5x with small incremental costs. According to Dell’Oro’s forecast, total 100G switch port shipments will outnumber 40G switch port shipments in 2017-2018.

According to our recent survey with Mission Critical magazine, many enterprise data centers have started planning for access network migration to 25G and aggregate/core network migration to 100G; some organizations have already started to consider 50G/200G/400G down the road.

Speed Migration blog

Data Center Speed Migration Survey (Source: Belden/Mission Critical Magazine, 2017)

When the survey asked, “Which structured cabling type will be deployed in your new data center facility?”, unsurprisingly, multimode fiber cabling was still the most popular data transmission media for structured cabling.

Transmission Media blog

Data Center Transmission Media Survey (Source: Belden/Mission Critical Magazine, 2017)


Brownfield and Greenfield Multimode Fiber Cabling in Data Centers

As data center speeds go up, layer 0 (the physical media for data transmission) becomes increasingly critical to ensure link quality.

Web 2.0 companies such as Google, Amazon, Microsoft and Facebook started migration to 100G in 2015. Many of their new deployments use singlemode fiber to best suit hyperscale data center architecture.

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