[Cake] Putting cake under dsmark on ingress ifb

[Andy Furniss]

Jonathan Morton wrote:
>
>> On 26 Feb, 2017, at 15:41, Andy Furniss <adf.lists at gmail.com> wrote:
>>
>> This works in the sense that I can now get tcpdump on a PC on the
>> lan to show incoming icmp with tos 0xb8.
>>
>> So I try to add cake under dsmark ini the hope that it sees icmp as ef
>> but it doesn't, icmp goes to best effort.
>
> I suspect packets are queuing in cake first and only then going through dsmark.  What happens if you reverse the nesting?

tc qdisc add dev ifb0 handle 1:0 root cake bandwidth 60mbit raw overhead 
34 diffserv4

tc qdisc add dev ifb0 handle 2:0 parent 1:0 dsmark indices 64
RTNETLINK answers: Operation not supported

Going to be AFK till this evening - will try more random stuff later.