netdev - pkt_sched: add DRR scheduler, any idea how to use it?

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Date:	Thu, 26 Feb 2009 18:26:17 +0200
From:	Denys Fedoryschenko <denys@...p.net.lb>
To:	netdev@...r.kernel.org
Subject: pkt_sched: add DRR scheduler, any idea how to use it?

I tried

c qdisc add dev ifb0 handle 1 root htb

tc class add dev ifb0 classid 1:100 parent 1:0 htb rate 100Kbit ceil 100Kbit
tc qdisc add dev ifb0 parent 1:100 handle 2 drr

Packets directed by filter to 1:100, all gots dropped. And even i am adding
tc class add dev ifb0 parent 2:0 classid 2:1 drr quantum 16384

or 

tc class add dev ifb0 parent 2:0 classid 2:0 drr quantum 16384

or 

tc class add dev ifb0 parent 2:0 classid 2:1 drr quantum 16384
tc qdisc add dev ifb0 parent 2:1 handle 3 bfifo limit 10000


Always it is 
qdisc drr 2: parent 1:100
 Sent 0 bytes 0 pkt (dropped 32, overlimits 0 requeues 0)
 rate 0bit 0pps backlog 0b 0p requeues 0

Any simple example how to use it?
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