From: Hoomaan Naimi naimi@afranet.com
To: lartc@vger.kernel.org
Subject: [LARTC] tc troubles
Date: Mon, 23 Oct 2000 11:24:00 +0000 [thread overview]
Message-ID: <marc-lartc-98373938216830@msgid-missing> (raw)
In-Reply-To: <marc-lartc-98373938216829@msgid-missing>
<PRE>Dear Sir,
The question exactly arises from here:
How can I monitor the impact of these several settings on the network
performance?
How can I monitor the size of the queues, log the packets dropped ,....?
I would be thankful if you recommend me some tools or APIs for doing these
tasks.
Best Regards
Hoomaan Naimi
Afranet Network Administrator
----- Original Message -----
From: "bert hubert" <<A HREF="mailto:ahu@ds9a.nl">ahu@ds9a.nl</A>>
To: "Hoomaan Naimi" <<A HREF="mailto:naimi@afranet.com">naimi@afranet.com</A>>
Sent: Monday, October 23, 2000 1:59 PM
Subject: Re: [LARTC] tc troubles
><i> On Mon, Oct 23, 2000 at 01:45:22PM +0330, Hoomaan Naimi wrote:
</I>><i> > Hi all,
</I>><i> > Its a while we are trying to use "tc" for bandwidth control. But each
</I>time
><i> > we apply tc rules to the network, we experience a lot of service
</I>><i> > degradation. The usage we are mostly concerned about, is bandwidth
</I>control
><i> > of a group of IP addresses. We mark that subnet with IPChains and then
</I>apply
><i> > the tc rules. These are the rules applied to eth5 in order to limit the
</I>><i> > uplink of packets marked "7" by ipchains:
</I>><i>
</I>><i> Try reading the source of CBQ.init, which can set up rules for you. I miss
</I>a
><i> lot of settings in your output, like weight, cell size etcetera. This
</I>might
><i> lead to a bad configuration.
</I>><i>
</I>><i> Regards,
</I>><i>
</I>><i> bert hubert
</I>><i>
</I>><i> > # /sbin/tc class sh dev eth5
</I>><i> > class cbq 40: root rate 100Mbit (bounded,isolated) prio no-transmit
</I>><i> > class cbq 40:1 parent 40: rate 100Mbit prio no-transmit
</I>><i> > class cbq 40:300 parent 40:1 leaf 8025: rate 200Kbit (bounded) prio 5
</I>><i> > # /sbin/tc qdisc sh dev eth5
</I>><i> > qdisc tbf 8025: rate 200Kbit burst 25Kb lat 1us
</I>><i> > qdisc cbq 40: rate 100Mbit (bounded,isolated) prio no-transmit
</I>><i> > [<A HREF="mailto:root@qos-1">root@qos-1</A> naimi]# /sbin/tc filter sh dev eth5
</I>><i> > filter parent 40: protocol ip pref 1 fw
</I>><i> > filter parent 40: protocol ip pref 1 fw handle 0x7 classid 40:300
</I>><i> > filter parent 40: protocol ip pref 80 u32
</I>><i> > filter parent 40: protocol ip pref 80 u32 fh 800: ht divisor 1
</I>><i> > filter parent 40: protocol ip pref 80 u32 fh 800::800 order 2048 key ht
</I>800
><i> > bkt 0 flowid 40:100
</I>><i> >
</I>><i> > As I mentioned, the service degraded severely: pig time of internet
</I>sites
><i> > increased about 300-500 ms!!
</I>><i> > Does anybody know what is wrong with my configuration?
</I>><i> >
</I>><i> > Best Regards
</I>><i> > Hoomaan Naimi
</I>><i> > Afranet Network Administrator
</I>><i> >
</I>><i> >
</I>><i> >
</I>><i> >
</I>><i> > _______________________________________________
</I>><i> > LARTC mailing list / <A HREF="mailto:LARTC@mailman.ds9a.nl">LARTC@mailman.ds9a.nl</A>
</I>><i> > <A HREF="http://mailman.ds9a.nl/mailman/listinfo/lartc">http://mailman.ds9a.nl/mailman/listinfo/lartc</A> HOWTO:
</I><A HREF="http://ds9a.nl/2.4Routing/">http://ds9a.nl/2.4Routing/</A>
><i> >
</I>><i>
</I>><i> --
</I>><i> PowerDNS Versatile DNS Services
</I>><i> Trilab The Technology People
</I>><i> 'SYN! .. SYN|ACK! .. ACK!' - the mating call of the internet
</I>
</PRE>
prev parent reply other threads:[~2000-10-23 11:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-10-23 10:27 [LARTC] tc troubles Hoomaan
2000-10-23 11:24 ` Hoomaan [this message]
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