topic Re: NLB problems with NIC teaming in Operating System - Microsoft

NLB problems with NIC teaming

Kaukonen — Sun, 23 May 2010 05:46:27 GMT

Hello,

I have problems with two Blade 460 G6 servers.
The NLB has been configured to multicast. I am using HP teaming. The blades have only two nics.

After adding the mac to the arp-tables on our network the cluster seemed to work fine.

Problems started after few hours. The service running in NLB stopped to respond. It's down few minutes and after that you can connect it again.

What I see at firewall is some incoming traffic to the NLB and none outgoing.

Any ideas what is wrong with my config?

Re: NLB problems with NIC teaming

Igor Karasik — Mon, 24 May 2010 05:00:47 GMT

>>Any ideas what is wrong with my config?

Teaming

We spend many hours in similar situation - NLB and teaming. After we dissolve teaming -problem solved.

http://msmvps.com/blogs/clusterhelp/archive/2006/06/05/network-load-balancing-nlb-and-network-interface-card-nic-teaming.aspx
"The quick summary of this post is, "Don't use NLB on teamed NICs."

Re: NLB problems with NIC teaming

Kaukonen — Thu, 10 Jun 2010 09:10:10 GMT

Yeah,

What we did was to convert back to single NIC unicast. Seems to work fine.

Re: NLB problems with NIC teaming

Dan Robinson_4 — Sat, 03 Jul 2010 05:54:12 GMT

Out of curiosity, what Teaming mode were you using? NFT Only is usually the most compatible with complex environments. I never use Automatic.