> Nick Domukhovsky wrote:
>>> Nick Domukhovsky wrote:
>>>> Gaspar
>>>>> I have two Windows 2003 DCs. Both servers host IIS web applications
>>>>> and
>>>>> SqlServer 2005 instances.
>>>>> Both have two nics: One public and one private communication between
>>>>> servers. The public nics are connected to a layer-3 switch.
>>>>>
>>>>> I want to load balance HTTP traffic (****ts 80 and 443) and I'm very
>>>>> confused with Layer 3 switches, NLB & Domain controllers, Unicast
vs.
>>>>> Multicast, and other recomendations given by microsoft and
newsgroups.
>>>>>
>>>>> So: In my current configuration, Which NLB mode do you suggest to
use?
>>>>>
>>>>> Thanks in advance.
>>>>> Gaspar
>>>> Use NLB multicast mode (without IGMP). The only thing you should do -
>>>> configure static ARP record on your switch (Virtual IP <-> Virtual
>>>> MAC).
>>>> In this configuration you have no need for private connection between
>>>> nodes.
>>>>
>>>> Moreover with ****t rules of NLB cluster you can make it to balance
only
>>>> TCP traffic on 80 and 443 ****ts.
>>>>
>>> Should I configure the ARP record only in the switch that the servers
>>> are connected? or in every switch in my network?
>>> Thanks again.
>> Only on switch to which your cluster nodes connected.
>>
>>
>>
> BIG PROBLEM: my switch can't be configured. I have the 3COM Baseline
> switch 2024 that has a fixed configuration. Any alternatives?
But you said before, that you have layer 3 switch... How it can be
unconfigurable? If it is not layer 3 switch, you can omit step with
making static ARP entry.
--
With best regards
Nickolay Domukhovsky, MCSA
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