NLB causing loss of network

Hi all
We have two terminal servers setup with NLB (multicast)
We have tried setting this to unicast also.
The problems we are getting is that as soon as we initiate the NLB we start
to get a HUGE amount of activity on the switches often leading to them
locking up.
The NICs are also setup in teaming, but we have tried taking teaming off and
running a single NIC, we have tried various driver and firmware updates for
the NIC's, however, we do not see this issue until the NLB is put on.

Any clues as to how we get around this would be greatly appreciated

TIA

Terry

 

Hi!

This is more a question for NLB clustering team.

One thing that we did when setting up TSs with NLB: we had 2 NIcs on the
servers and configure NLB so that the clustering specific tracffic was on one
of the NICs.

Thanks,
Geanina

"Terry" wrote:
<!--coloro:blue--><span style="color:blue <!--/coloro-->
> Hi all
> We have two terminal servers setup with NLB (multicast)
> We have tried setting this to unicast also.
> The problems we are getting is that as soon as we initiate the NLB we start
> to get a HUGE amount of activity on the switches often leading to them
> locking up.
> The NICs are also setup in teaming, but we have tried taking teaming off and
> running a single NIC, we have tried various driver and firmware updates for
> the NIC's, however, we do not see this issue until the NLB is put on.
>
> Any clues as to how we get around this would be greatly appreciated
>
> TIA
>
> Terry
>
> <!--colorc--><!--/colorc-->