[dtaht]

We designed cake to be implementable in hardware if anyone could be convinced it was useful: https://blog.cerowrt.org/post/juniper/ - I thought this test series rather compelling.

1) The data paths MUST prepend a timestamp to every packet 2) HW invsqrt for codel or cobalt AQM is 3k gates, checked on output 3) 32k 4 way set associative cache is a std IP block 4) HW Packet hasher - three different outputs

There are a few states in cake that are optional, but I remain boggled that step 1!! did not happen within 2 hardware releases of switch chips after van Jacobson and kathie Nichols published codel as a replacement for RED in 2012.

https://queue.acm.org/detail.cfm?id=2209336