Topic
The switching and routing layer inside data centers, typically built as leaf-spine fabrics with overlay networks running over an IP underlay.
Colt has put Relativity Networks' ChronoCore hollow-core fiber live between two central London sites, with a latency cut of around 30 percent expected. The link is a proof of concept, and DatacenterDynamics describes the 30 percent as the fiber's expected benefit.
Reality
Co-packaged optics, shrugged off when Cisco showed it on a 3.2TB switch at OFC 2023, now has the industry's attention, DatacenterDynamics reports. Operators have to decide whether its promised power savings are worth giving up the many pluggable suppliers that give them negotiating leverage.
Reality
Cisco patched five critical NX-OS flaws that can give attackers root code execution or force reloads on Nexus 3000 and 9000 switches. Each one needs NX-API, NGOAM or MPLS OAM turned on, so a switch's feature configuration decides its exposure before its software version does.
Reality
Nokia CEO Justin Hotard says customers would build AI data centers twice as fast without shortages of memory chips and power. Nokia's own order book supports his point about the pace of building, while leaving open whether demand for AI services will repay the spending.
Perspective Coverage
4 publishersReality
IEEE has named its 2027 Technical Field Award winners, and seven of the first 16 listed are IEEE Life Fellows. Most citations credit work already in drives, chips, networks and clinics, so the awards map settled engineering and say little about AI.
Reality
One operator's move of two TrueNAS servers onto a dual-TOR fabric failed at all five storage layers while the change plan reported healthy. Each break was invisible from the layer above it, so each layer needs its own cutover check.
Reality
The startup has closed more than $100 million three months after debuting its first appliance, a four-accelerator box whose 36 OSFP ports are reported to give it network capacity comparable to Nvidia's Rubin systems.
Reality
Arista scores CVE-2026-7473 at 5.8 and says it is already being exploited. With every EOS train on the affected list, the thing that decides your exposure is whether a given device terminates a tunnel at all.
Reality