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From Ergin Ozekes <>
Subject Re: Completely redundant physical installation
Date Thu, 19 Mar 2015 08:47:37 GMT
Hi Harald;

Thank you for valuable recommandation.

My Ats boxes use bridge mode for fully transparent forward proxy
application. One router forwards the http traffic by using pbr to my input
vlan on the switch. Then switch forwards to one of the ats box of two. Ats
box sends request to origin server over the out vlan.
Now I am testing 3 different switches(Huewai s5900,alcatel omniswitch 6850
and Hp5820) for load balancing via lacp. I need effective load balancing
for two ats boxes which fully clustered and I need the connection
persistency on the out vlan.

I don't need the virtualization soultion.

Is there anywhere to acquire the establishing the full redundancy?

Best Regards,

On Thu, Mar 19, 2015 at 12:18 AM, Reindl Harald <>

> Am 18.03.2015 um 23:04 schrieb Ergin Ozekes:
>  I need recommendation about fully redundant physical installation. I
>> think about to use two switch, two server which include ats with fully
>> clustered and the all the connection should be paired between switch and
>> the server. Which protocols should be used for the active/active load
>> balanced switch? Which protocols should be used for the redundant
>> cabling on the server?
> in case of having that all in the same network mostly nic-teaming on both
> machines and dns round-robin should be enough to spread the load
> in case of virtualization you can have easy HA for both servers
> real redundancy would require having the machines on different locations,
> round-robin DNS with a very small TTL and remove offline nodes from the DNS
> records, in that case you also need to make sure that the connections to
> the origin are redundant
> for full redundancy there is honestly no easy setup

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