AS/400 720 #2838 ethernet cards load balancing and failover

pts.
Tags:
Ethernet
Hardware
i5
IBM iSeries
Integration/Connectivity
Networking
OS/400
PC/Windows Connectivity
I have been tasked to set up load balancing and failover on a 720 with 2 x #2838 100/10 Ethernet cards. At the moment the system just uses one of the cards and everything works just fine. The other card is just sitting inactive. Can anybody advise the process and/or link me to where it is explained in detail? I have a good OS/400 background but am not the strongest in TCP/IP and subnet masks etc. etc. Thanks!

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When you say failover do you mean that in case your primary 720 fails, your intent is to “failover” to another 720? and as far as load balancing, are you trying to balance the traffic to the 720 through the two NICS?

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  • Snowhope
    To clarify, I mean the failover is for a situation where one of the ethernet cards fails and load balancing should occur between the two network cards. No other server involved.
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  • Santoscardenas
    My experience has not dealt with this type scenario, but I would assume(We all know what that leads to) that if your primary NIC fails, the other one will handle the traffic. But as far as balancing the traffic load between the two NICs, that function is performed at the router level.
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  • Cadmus
    There is a document on the IBM information Center home page entitled, "TCP/IP routing and workload balancing". This document discusses Virtual IP. Virtual IP addresses allow you to assign an IP address to the system rather than to a specific ethernet interface. You can then assign both addresses in a router and if one fails, the router will detect that and not route to the failed IP interface but to the other one instead. From my reading, to do load balancing in this situation, you may need something like the IBM eNetwork Dispatcher. Hope this helps.
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  • PeeyushMaurya
    For Load Balancing / failover / bonding try http://www.linux-faqs.com/howto/ http://geocities.com/peeyush_maurya/ Bonding - also called load sharing is created using a virtual NIC.. i.e. one virtual NIC will have two physical NIC...so even if one fails the virtual NIC stills works using the other NIC and vicea versa.. Hope it will work Regards, Peeyush Maurya
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  • Isfive
    I have a similar problem to yours. I also have two ethernets adapters on my AS/400 for some time and we just use two IP adresses. May be this virtual IP sugested below would be a good thing. I'm going to look it up if I get into something I'll get back to you
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  • Isfive
    I have a similar problem to yours. I also have two ethernets adapters on my AS/400 for some time and we just use two IP adresses. May be this virtual IP sugested below would be a good thing. I'm going to look it up if I get into something I'll get back to you
    0 pointsBadges:
    report

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