From: Doug Kingston <douglas.kingston@db.com>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Configuring a redundant ethernet connection
Date: Thu, 23 Jan 2003 09:13:10 +0000 [thread overview]
Message-ID: <marc-lartc-104331329313186@msgid-missing> (raw)
In-Reply-To: <marc-lartc-104324662830977@msgid-missing>
It turns out that the bonding driver does indeed handle interface
redundancy to two separate switches. Martin was right and the kernel
documentation file (networking/bonding.txt) is packed full of useful
information. The specific section that deals with what I need is under
the heading "High Availability", option 2 "HA on two or more switches
(or a single switch without trunking support)". It uses link status to
determine that the interface is alive and uses one and only one at a
given time.
bonding.txt is well worth a good read.
-Doug-
Jose Luis Domingo Lopez wrote:
>On Wednesday, 22 January 2003, at 10:07:32 -0600,
>Martin A. Brown wrote:
>
>
>
>> : I am interested in setting up a host with dual ethernet connections to
>> : the same IP subnet (but different switches) for redundancy. We need
>> : reasonably transparent failover if an interface fails.
>>
>>Linux supports channel bonding which should do what you want. There is
>>little documentation outside the kernel for this, but what documentation
>>exists is very good. This can be found in a linux source tree in the
>>following file:
>>
>>
>>
>As far as I know ethernet bonding (trunking) is a layer-2 point-to-point
>thing. So you need compatible bonding implementations at both sides, and
>every cable in the trunk on each end must go to the same box.
>
>The original poster said "dual ethernet connections to the same IP
>subnet (but different switches)", so I'm afraid bonding is not an option.
>
>Regards,
>
>
>
--
Douglas Kingston
Director
Global Unix Engineering Manager
Deutsche Bank AG London
6 Bishopsgate
London EC2N 4DA
Work: +44-20-7545-3907
Mobile: +44-7767-616-028
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next prev parent reply other threads:[~2003-01-23 9:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-22 14:42 [LARTC] Configuring a redundant ethernet connection Doug Kingston
2003-01-22 16:07 ` Martin A. Brown
2003-01-22 20:22 ` Jose Luis Domingo Lopez
2003-01-23 9:13 ` Doug Kingston [this message]
2003-01-24 1:31 ` Jose Luis Domingo Lopez
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