[$] The rise of Linux-based networking hardware

By jake Linux usage in networking hardware has been on the rise for some
time. During the latest Netdev
held in Montreal this April, people talked seriously about
Linux running on high end, “top of rack” (TOR) networking equipment. Those
devices have long been the realm of proprietary hardware and software
companies like Cisco or Juniper, but Linux seems to be making some
significant headway into the domain. Are we really seeing
the rise of Linux in high-end networking hardware?

From: LWN