From: Leandro Stasi <kinyo@sinectis.com.ar>
To: lartc@vger.kernel.org
Subject: [LARTC] cbq (root class) rate problem
Date: Tue, 07 May 2002 01:33:50 +0000 [thread overview]
Message-ID: <marc-lartc-102073534130951@msgid-missing> (raw)
From where the cbq classes borrow bandwith? (parent or sibling)
If the parent is rate at 50kbit the leaf classes should not get more
bandwith than the parent?
Why does the classes (with root class as parent) borrow bandwith beyond
the rate set when cqb is created?
CBQ on 10Mbit Ethernet
2 clasess 25kbit on each
borrow and sharing both
When I create the cqb qdisc it create a root class with the handle 10:0
I set the root class to rate at 50kbit
Then I create to classes whith 10:0 as the parent
Both classes borrow bandwith beyond the 50kbits
tc qdisc add dev eth0 root handle 10:0 cbq bandwidth 10mbit avpkt 1000
cell 8 rate 50kbit
tc class add dev eth0 parent 10:0 classid 10:10 cbq bandwidth 10mbit
rate 25kbit allot 1514 cell 8 maxburst 20 avpkt 1000 sharing borrow
tc class add dev eth0 parent 10:0 classid 10:11 cbq bandwidth 10mbit
rate 25kbitallot 1514 cell 8 maxburst 20 avpkt 1000 sharing borrow
I did a workaround by creating an extra class with root class as parent
and isolated,bounded
But I don't like to have extra classes just becuse I can control root class.
tc qdisc add dev eth0 root handle 10:0 cbq bandwidth 10mbit avpkt 1000
cell 8
tc class add dev eth0 parent 10:0 classid 10:1 cbq bandwidth 10mbit
rate 50kbit allot 1514 cell 8 maxburst 20 avpkt 1000 isolated bounded
tc class add dev eth0 parent 10:1 classid 10:10 cbq bandwidth 10mbit
rate 25kbit allot 1514 cell 8 maxburst 20 avpkt 1000 sharing borrow
tc class add dev eth0 parent 10:1 classid 10:11 cbq bandwidth 10mbit
rate 25kbitallot 1514 cell 8 maxburst 20 avpkt 1000 sharing borrow
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reply other threads:[~2002-05-07 1:33 UTC|newest]
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