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How to provide my ESX hosts network redundancy and load balancing?

Posted on 2011-02-18
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Last Modified: 2012-05-11
Hello,

I'm trying to figure out how to setup my ESX host/servers up for Network Redundancy and load balancing.

This is what I have currently have on my ESX host #1, which is what I have on my other two ESX host.
 ESX1 Networking
As you can see I have one vnic for vSwitch0 and I have 4 vnics for vSwitch1. Now vSwitch2 in my mind is ok.

I want redundancy and load balancing on this ESX host/server, so I went to vSwitch0 properties, add a adapter wizard and added a unclaimed adapter. I selected active adapters for both vnics, not standby.

When I hit ok, I lost connection to my ESX host/server and I don't understand why. I was wondering if any EE can help me figure this out?

Thanks,

nimdatx
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Question by:nimdatx
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Expert Comment

by:bgoering
ID: 34927167
Yes that will happen if you did not set up the corresponding ether channel on the swith that the esx server plugs into. What vendor and model switch are you using?
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Expert Comment

by:bgoering
ID: 34927182
Also tell me more about how your physical switch is set up for vswitch1 - I would think you may require etherchannel there also in order to exploit the 4 nics.
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Author Comment

by:nimdatx
ID: 34927264
I have 8 physical nics on all my physical servers. Physical nic0 on eac server is connected to a physical ethernet switch on my LAN. I have not setup any VLANs on my physical lan switch or any other etherchannel. I guess thats where I.m getting confused as I think its a virtual network issue, but what you are saying is it's a physical configuration on my LAN switches, wheather it's switches connected (dedicated) to SAN or physical LAN?
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Accepted Solution

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bgoering earned 500 total points
ID: 34927340
That is correct in that it is a physical configuration on your switch that caused your management network to fail when you plugged in another nic. For nic teaming with loadbalancing you need to define an ether channel (most common) or LACP connection from your switch to your esx servers. See http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1004048 for some more info on that. About the best you can do without etherchannel is an active/standby setup that will give you some fault tolerance, but no load balancing.
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