Note they cite higher numbers as the current status than the Cloudfare article. In the LWN article it says "The kernel, today, can only forward something betwee

Note they cite higher numbers as the current status than the Cloudfare article. In the LWN article it says "The kernel, today, can only forward something between 1M and 2M packets per core every second" Also eg. http://vger.kernel.org/netconf2009_slides/LinuxCon2009_JesperDangaardBrouer_final.pdf http://vger.kernel.org/netconf2009_slides/LinuxCon2009_Jespe... from 6 years ago show forwarding at 4 Mpps. (Forwarding is, of course, receiving AND sending instead of just receiving so these should translate to higher RX-only numbers.)