NLB and HP Network Teaming

[Dan Baylis_1]

I need urgent help and I'm completely out of ideas.

I have a problem using NLB with the two onboard network cards which are teamed.

Background:

Using 2 x DL360 G3 running Windows 2003 Standard with all hot fixes bar SP1.

Both servers were built with SmartStart 7.10

I have the two servers setup, 1st server 10.8.3.18 and the 2nd server on 10.8.3.19 and I gave the NLB cluster an IP address of 10.8.3.20.

When you create the NLB cluster and select the first host its goes off and reconfigures the network settings and all seems fine. When you try to ping another IP address it fails. When NLB is enabled on the First host it can ping its IP address (10.8.3.18) and the cluster address (10.8.3.20) but nothing else.

If you delete the Host from the Cluster you can ping any address on the network again.

I have tried setting up the NLB Cluster without teaming and it all works fine you can add the primary then secondary host and it all works fine and can ping all addresses on the network.

Thanks

Dan Baylis

[Bostjan Kosi]

There are known issues with NFT and clustering on MS platform....(either NLB or CL) Try just using standalone NIC's and add two per system to your NLB cluster. A single reconnect will be required if one of the NIC's fail anyway...

BR
B.

[Connery]

Solution is to use NLB in multicast mode, not unicast mode.