SV: [LARTC] Loadbalancing on multiple eth rtl8139

From: Daniel Bergqvist daniel@netatonce.se
To: lartc@vger.kernel.org
Subject: SV: [LARTC] Loadbalancing on multiple eth rtl8139
Date: Mon, 16 Oct 2000 11:44:50 +0000	[thread overview]
Message-ID: <marc-lartc-98373938216786@msgid-missing> (raw)

<PRE>Hi!

The devices eth1 and eth3 MUST be active. Remove &quot;ip link set down eth1&quot; and
&quot;ip link set down eth3&quot;. You might get problems with &quot;TCP packet reordering&quot;
resulting in lower bandwidth but I'm currently working with a patch to the
sch_teql driver. I will post it to the list if/when I get it to work.

Regards,
Daniel

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&gt; [mailto:<A HREF="mailto:lartc-admin@mailman.ds9a.nl">lartc-admin@mailman.ds9a.nl</A>]För
&gt; <A HREF="mailto:loadbalancing@highlander.my-scotland.co.uk">loadbalancing@highlander.my-scotland.co.uk</A>
&gt; Skickat: Monday, October 16, 2000 12:03 PM
&gt; Till: <A HREF="mailto:lartc@mailman.ds9a.nl">lartc@mailman.ds9a.nl</A>
&gt; Ämne: [LARTC] Loadbalancing on multiple eth rtl8139
&gt;
&gt;
&gt; Hello!
&gt;
&gt; I have a 4 interfaces Linux router with 2.2.14 kernel realtec
&gt; 10/100 rtl8139 driver. The kernel should be compiled with the
&gt; right options.
&gt; I have to loadbalance the traffic on two interfaces. We speak
&gt; about microwave connection, but the microwave devices are
&gt; breezenet access points so they can not be included into the
&gt; router machine directly, they are attached by ethernet T based 10
&gt; Mbs cord one to one eth card respectively. The line have to have
&gt; the double of the 3MB of today`s capacity.
&gt; The other side of the line is a cisco 7000 series router of our
&gt; provider. We would like to use one virtual interface and two
&gt; slaved ones attached to the virtual master to route statically
&gt; the traffic. We tried the sch_teql module to do so and the Linux
&gt; 2.4 Advanced Routing HOWTO chapter 8.5 Loadsharing over multiple
&gt; interfaces. We exactly entered this lines in shell:
&gt; modprobe sch_teql
&gt; ip link set down eth1
&gt; ip link set down eth3
&gt; tc qdisc add dev eth1 root teql0
&gt; tc qdisc add dev eth3 root teql0
&gt; ip addr add dev teql0 62.168.113.130/25
&gt; (the interfaces eth1 and eth3 are already set up with
&gt; 62.168.113.254 resp. 62.168.113.253)
&gt; The system was unable to ping the other side. After we tried to
&gt; link up the interfaces - teql0 before, eth1 and eth3 after. Ping
&gt; with all the interfaces bringed up (ip link set up dev [device])
&gt; resulted in system crash. We was told by third party that the
&gt; realtec eth card has a mallfunctioning driver for some operation.
&gt;
&gt; Please let us know how to do.
&gt;
&gt; Thanks
&gt;
&gt; Dzony and the team.
&gt;
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</PRE>