Day: May 8, 2026

A real-world selection story. Last winter, a factory in Shunyi that makes auto parts came to us. The site has 180 people and a branch plant in Langfang, and the core requirements were typical: the head office gateway was long past its service life and its policies were a complete mess. More importantly, the factory’s ERP system needed secure access from Langfang to the head office servers. The boss was pressing to go live, yet no one dared to touch the old equipment for fear of disrupting operations. I took an engineer to the site to look things over for half a day, and Cisc…

Twisted pair or fiber? Choosing the wrong cable type is the biggest hidden cost. After fourteen years in data center operations, what gives me headaches isn’t equipment failure — it’s the landmines buried during the cabling phase. Many clients make a snap decision to use Cat5e copper cable early in the project, only to discover when their business scales that it can’t carry 10 Gigabit. After a round of re-cabling, the cost ends up five to six times the original decision cost. The fundamental difference between twisted pair and fiber comes down to the application scenario. Copper cable suits runs of up to 90 meters…