I have a requirement which I guess it is not too unusually, however I haven't
quite figured out how to do it and couldn't find any examples which handle that.
I have made myself a Linux-based bridge, eth0 bridged with
eth1 to form br0.
In this bridge, I run 'tc' script to handle QoS.
So far nothing unusual.
However, what's different is that this bridge is sitted in between a pppoe
client
and pppoe server, ie pppoe frames are bridge between the Linux bridge, and
I am interested to perform QoS on the pppoe frames, based on the ip tos setting
of the ppp packets ( encapsulated inside the pppoe frames ).
For example, normal tc script :-
tc filter add dev ppp0 parent 1:0 prio 10 u32 \
match ip tos 0x10 0xff \
flowid 1:4
This will work on a ppp0 device because the ppp0 has ip packets flowing through
it. Now in my bridge, there is no such device, I only have access to eth0 or
eth1,
how could I perform the same thing on devices such as eth0 or eth1, but
matching
the ip TOS setting inside the pppoe frame ?
Best regards.
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