[Cake] overheads or rate calculation changed?

Andy Furniss adf.lists at gmail.com
Sat Dec 23 04:59:26 EST 2017

Sebastian Moeller wrote:

>> qdisc cake 1: dev enp6s0 root refcnt 2 bandwidth 19690Kbit diffserv3 triple-isolate rtt 100.0ms noatm overhead 48 via-ethernet total_overhead 48 hard_header_len 14
> 	This looks like expected, the in-kernel overhead is added to the specified overhead, just like in the past. I really really wished cake would report the packet size before and _after_ its overhead addition making sanity checking much easier. BTW tc's stab might be useful as an external check... I also wonder whether the kernel's behaviour in regards to ppp interfaces changed between kernel 4.4 and newer ones, I see the same weirdness:

FWIW my pppoe router/pvr/nas box is running 4.1.46. It's a bay-trail dc 
board and they are prone to cstate bug locks, which is why I'm not 
running anything newer!

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