From: "Rendel, Thorsten" <Thorsten.Rendel@NDSatcom.com>
To: lartc@vger.kernel.org
Subject: [LARTC] bandwidth limit
Date: Fri, 17 May 2002 06:06:38 +0000 [thread overview]
Message-ID: <marc-lartc-102161564832756@msgid-missing> (raw)
Hi,
i am using the CBQ Qdisc as a shaper for my 100Mbit/s Ethernet LAN.
I want to limit a bounded, isolated CBQ Class to 10 Mbit/s.
# TC class add dev $DEVICE handle X:0 classid X:Y cbq bandwidth 100Mbit/s rate 10 Mbit/s prio bounded isolated avpkt 1000 allot 1514 weight 1 maxburst 15
In my testbed i use a SmartBit Hardware traffic generator to generate traffic streams, with different protcols and different paket length. I send a UDP traffic stream with 20 Mbit/s.
The results of my measurementes are that for a paket length of 1518 Bytes the shaping works fine, but for a length of 64 Byte the shapings works very bad. I got at the outgoing interface a bandwidth of 4 Mbit/s.
I changed the avpkt, maxburst and allot parameter, but the results didn´t become better.
What is the reson for this behavior?
Thanx
Thorsten
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next reply other threads:[~2002-05-17 6:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-17 6:06 Rendel, Thorsten [this message]
2002-05-17 7:58 ` [LARTC] bandwidth limit Stef Coene
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