Hi,
I am trying to use HTB in OpenvSwitch. Currently, OvS
supports only single-level of hierarchy in HTB. Am I correct? But for
implementing DiffServ, it would be good if multiple levels of hierarchy are
supported. Hence, I read the source code and tried to modify it to support
multiple hierarchy levels. I found that the functions related to htb such as
htb_setup_qdisc, htb_setup_class and others are in netdev-linux.c file. I went
through the ovs-vsctl code and identified the functions pre_create, cmd_create
and post_create which are used to make entries in the 'Qos' and 'queue' tables
in the database. But I could not find the link between the functions i.e which
function is used to create the queues using the tc command. When we give
ovs-vsctl create queue command, what is the sequence of functions called to
create the queues? Can somebody help me? Or is there a patch that is available
to implement multiple levels of hierarchy in HTB?
Thank you
Regards,
Mathumitha
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