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Old 02-23-2011, 07:16 PM   #1
Washington Ratso
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Registered: Sep 2010
Posts: 27

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Should traffic control root qdsic & child class limit traffic?

I noticed that before I add client leaf classes that the value I set as the ceiling has no effect. For example, after putting in the following commands:

tc qdisc add dev sat0 root handle 9997 htb default 9999 r2q 2
tc class add dev sat0 parent 9997: classid 9997:9998 htb rate 500000bit ceil 500000bit

I can send over 3000000bits/sec with none of it being dropped. It looks like the 500000bit ceiling I defined is ignored. After I add client leaf classes below the root, I then see that packets are dropped when I try to exceed the ceiling.

Is this behavior expected?


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