Terabit per second to Gibibit per second

Global internet traffic peaks at roughly 1,000–1,500 Tbps (1–1.5 Pbps) as of 2026. This is growing at about 25% per year, driven by video streaming, cloud computing, and AI training data transfers. A single viral live event can spike regional traffic by tens of Tbps.

Internet traffic automatically reroutes through other cables and paths via BGP routing protocols, usually within seconds. Speed may degrade in the affected region but rarely drops entirely. Cable cuts happen more often than people think — about 100 per year globally, mostly from ship anchors and fishing trawlers.

Dense wavelength-division multiplexing (DWDM) sends dozens of different light colors (wavelengths) through a single fiber simultaneously, each carrying its own data stream. A modern cable contains multiple fiber pairs, each carrying 100+ wavelengths, with each wavelength modulated at 400 Gbps or more.

Netflix's library is estimated at around 30–40 petabytes. At 1 Tbps, downloading the entire catalog would take roughly 70–90 hours. At 100 Tbps (a realistic submarine cable capacity), you could theoretically grab all of Netflix in under an hour.

Researchers at Japan's NICT achieved 22.9 Pbps (22,900 Tbps) through a single multicore fiber in 2024. That is enough to transfer the entire Library of Congress in a fraction of a second. These lab records typically reach commercial deployment 5–10 years later.

At gibibit speeds, 7.4% represents a substantial amount of data. The difference between 10 Gibps and 10 Gbps is 737 Mbps — enough bandwidth for several 4K video streams. When designing storage fabrics or HPC interconnects, misinterpreting the unit can lead to underprovisioned systems.

PCIe specifications are actually defined in GT/s (gigatransfers per second) with specific encoding overhead. PCIe 3.0 uses 128b/130b encoding at 8 GT/s, giving about 985 MB/s per lane — which is closer to binary GiB/s than decimal GB/s. The industry uses both units somewhat loosely.

InfiniBand specifications use decimal rates (HDR = 200 Gbps, NDR = 400 Gbps per port). However, some HPC benchmarks and documentation convert to binary units for consistency with memory bandwidth figures. Always check the document's unit convention to avoid the 7% discrepancy.

Ordering a 100 Gibps fabric when you needed 100 Gbps means overpaying for 7.4% more bandwidth than necessary. Conversely, provisioning 100 Gbps when your workload needs 100 Gibps leaves you 7.4% short, potentially causing congestion during peak loads. At data center scale, these margins translate to real money.

Unlikely. Networking is firmly decimal (Ethernet, fiber optics), while memory and storage have binary roots. The two worlds overlap in storage networking, causing permanent confusion. The best practice is to always explicitly state "decimal" or "binary" in specifications rather than hoping everyone agrees.