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NLB Multicast in Windwos 2008R2

Posted on 2010-09-15
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Last Modified: 2012-05-10
I am seeking adivce about my current NLB setup for SharePoint 14. I setup 2 frontend servers. Each has one nic. I assigned each nic an IP. I configured NLB on both servers. I created a cluster IP and added each machine and their one node to the cluster. I made the dedicated IP on each server the same and its physcial IP. Everything seems to be working great.
(1) am I doing this correctly
(2) On the actual nics should I uncheck 'Register this connection address in DNS'
(3) Should I add an additional Nic? These are virtual machines so it wouldn't be an issue.
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Question by:mvozila
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Brad Howe earned 500 total points
ID: 33688187
Hi,
Your configuration is good, except for maybe the IIS bind IP.
The key for NLB on IIS is to setup the bindings to use the cluster IP. This will not be in the drop down, but should be entered manually.
I would also suggest you limit traffic to only the required ports. The can be done in NLB Admin under the Port tab. Just add the cluster IP and start port on 80 and end on 80 in a multiple mode. Do the same for any other ports.
Per the second Nic, your configuration is fine. The second NIC for internal cluster communication isn't necessary.
If you wanted to use 2 nics (not required), they would need to be Virutal Nics bound to two physical nics.
On the actual nics should I uncheck 'Register this connection address in DNS'
>  This is a DNS and doesn't cause any issues.
Cheers, Hades666
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by:mvozila
ID: 33688333
Thanks for the tips. Ok, so you are saying edit the bindings in iis on my sharepoint websites on each web server and add the cluster ip as opposed to keeping the default setting?
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by:Brad Howe
Brad Howe earned 500 total points
ID: 33688339
Yes, it is an issue with NLB virtual IPs and clusters. IIS is not aware of the cluster IP.
-Hades666
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by:mvozila
ID: 33688399
Excellent responses. Thank you
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