[Cake] diffserv based on firewall mark

[David Lang]

On Thu, 13 Oct 2016, ching lu wrote:

>> Setting the DSCP with iptables rules should work just as well and in the
> same way as using the “firewall mark” functionality as you already do.  Set
> it up that way in the first instance, directly replacing each HTB+fq_codel
> combination with a Cake instance, and see how it works.
>>
>>  - Jonathan Morton
>
> I might test how cake distribute ingress bandwidth if I use bittorrent and
> YouTube at the same time, hopefully ingress traffic has correct DSCP value

Ingress traffic probably has no DSCP set. Your ISP would be getting the packets 
from some other ISP (possibly several layers of this) who get it from the 
sender. Each time the packet is handed off from one organization to another, the 
DSCP settings loose their meaning and have a really good chance of being 
stripped.

David Lang
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