RE: Two Network cards for redundancy

["Wilt, Charles" <CWilt@xxxxxxxxxxxx>]

Guy,

What you are looking for is "Adapter Failover using virtual IP and Proxy
ARP"

It's pretty easy:
http://publib.boulder.ibm.com/infocenter/iseries/v5r4/topic/rzajw/rzajwl
bvip.htm
Or http://tinyurl.com/s22bo

Note, this doesn't help spread the incoming load.  You need an external
box for that.

IIRC, you can spread the outgoing connections out somewhat.


Charles Wilt
--
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121
  

> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx 
> [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Guy Terry
> Sent: Thursday, August 17, 2006 3:45 AM
> To: MIDRANGE-L@xxxxxxxxxxxx
> Subject: Two Network cards for redundancy
>
> Hi all,
>
> The 520 we've got came with two ethernet cards, and as I 
> understand they 
> were configured so that they both worked with the same IP 
> address. This 
> to introduce redundancy in case one failed (and perhaps to spread the 
> load?). Then, when we restored our old system onto the 520, 
> the network 
> config got broken and I just set it up with one network card.
>
> I'm going to have a go tomorrow at setting up the dual-card option 
> tomorrow, but I can't work out how. I guess that you give 
> each ethernet 
> line it's own TCP/IP interface with a unique IP address, but I can't 
> find where to specify the third IP address - the IP address you want 
> both cards to 'pretend' to be. Can anyone help?
>
> Also, we have some fairly fancy HP switches - do I need to configure 
> them so that they know about this special setup?
>
> Cheers
>
> Guy
>
>
>
>
>
> -- 
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