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тАО05-14-2007 02:58 AM
тАО05-14-2007 02:58 AM
Does anyone have feeback or results of using APA or ip_strong_es_model with load balancers?
w
Solved! Go to Solution.
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тАО05-14-2007 03:30 AM
тАО05-14-2007 03:30 AM
SolutionFor best results the F5 load balancing appliance would probably be best. Its designed for the job.
Assuming the APA NIC's are the same speed and the switch is configured properly, APA does a good enough job in my opinion.
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тАО05-14-2007 05:12 AM
тАО05-14-2007 05:12 AM
Re: ip_strong_es_model versus APA
ip_strong_es_model is for when you have 2 NICs, and you want to use 2 different gateways. ip_strong_es_model makes it so that the NIC you came in on is the NIC you came out on. Each NIC has it's own IP. If If you lose one of the balancers or one of your NICs, that side of things is down.
APA will make a big fat pipe out of 2 little pipes. The Big Fat Pipe has one address. If you are trying to get bandwidth to the web servers, the big fat pipe will still be there if one of the load balancers go down.
We are load balancing all over the place, but tie the destination to a specific IP.
Hope it helps
John
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тАО05-14-2007 05:24 AM
тАО05-14-2007 05:24 AM
Re: ip_strong_es_model versus APA
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тАО05-14-2007 06:33 AM
тАО05-14-2007 06:33 AM
Re: ip_strong_es_model versus APA
No comment on up_strong_es (what is it?).
We however use APA (LAN Standby mode) with several F5 balancers. We've never had any issues with it. "been running this config for 4 years now...
We have GigE pairs for APA btw.
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тАО05-15-2007 06:09 AM
тАО05-15-2007 06:09 AM
Re: ip_strong_es_model versus APA
APA is all about aggreagation, load balancing and failover.
If you want link-failover, unless you are willing/able to script things yourself, you should go ahead and obtain APA.
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тАО05-15-2007 07:52 AM
тАО05-15-2007 07:52 AM
Re: ip_strong_es_model versus APA
APA is a behind the scenes aggregate of 2 or more physical NICs referenced with 1 IP address working in conjuction with the network switch.
I guess it is a preference. Network issues do exist with multi routed multi homed host.
I prefer APA.
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тАО01-13-2009 12:20 PM
тАО01-13-2009 12:20 PM