netdev - Re: Unable to create htb tc classes more than 64K

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Date:   Tue, 20 Aug 2019 11:56:47 +0530
From:   Akshat Kakkar <akshat.1984@...il.com>
To:     Cong Wang <xiyou.wangcong@...il.com>,
        Anton Danilov <littlesmilingcloud@...il.com>
Cc:     NetFilter <netfilter-devel@...r.kernel.org>,
        lartc <lartc@...r.kernel.org>, netdev <netdev@...r.kernel.org>
Subject: Re: Unable to create htb tc classes more than 64K

>> If your goal is merely having as many classes as you can, then yes.

My goal is not just to make as many classes as possible, but also to
use them to do rate limiting per ip per server. Say, I have a list of
10000 IPs and more than 100 servers. So simply if I want few IPs to
get speed of says 1Mbps per server but others say speed of 2 Mbps per
server. How can I achieve this without having 10000 x 100 classes.
These numbers can be large than this and hence I am looking for a
generic solution to this.

I am using ipset +  iptables to classify and not filters.

Besides, if tc is allowing me to define qdisc (100:) -> classes
(100:1) -> qdisc(1:  2:  3: ) -> classes (1:1,1:2   2:1,2:2    3:1,
3:2   ...) sort of structure (ie like the one shown in ascii tree)
then how should those lowest child classes be actually used or
consumed or where it can be used?