Directly from the article: "Cavium plans four families of Thunder chips, targeting storage, networking, and security systems in addition to servers. Each family

Directly from the article: "Cavium plans four families of Thunder chips, targeting storage, networking, and security systems in addition to servers. Each family will use a different set of I/O and accelerator blocks from Cavium's existing silicon library." So no, these are not just designed for networking equipment, they are planned to target 4 different areas.