Second IP address

  • Thread starter Thread starter A.M
  • Start date Start date
A

A.M

Hi,

If I add multiple IP address on the same network card, does it increase load
over IP stack ?
Is the server going to have multiple stack? How much load will I have over
CPU and/or memory ?

Any help would be apprecited,
Alan
 
The same stack is used. you are just listening for packets from another
address. There is no load balancing of the traffic involved. This is
generally not a good idea, although some situations may call for multiple
IPs.
 
In
A.M said:
Hi,

If I add multiple IP address on the same network card, does it
increase load over IP stack ?
Is the server going to have multiple stack? How much load will I have
over CPU and/or memory ?

Any help would be apprecited,
Alan
Click to expand...

Anything you "add" to a machine will be extra overhead. But an extra IP is
not that much overhead at all. I wouldn't say an extra "stack" but the one
stack in the machine, the network services. Keep in mind the Network layer
handles IP and that is on the 3rd layer. The upper layers do not deal with
IP.Each and every network session, however, is a session, meaning a separate
are of memory to handle communication for each entry point into the layers
starting at the App layer, but it still goes down the same layer ('stack')
and out the door thru your NIC.

What are you trying to setup?

--
Regards,
Ace

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Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft Windows MVP - Windows Server - Directory Services

Security Is Like An Onion, It Has Layers
HAM AND EGGS: A day's work for a chicken;
A lifetime commitment for a pig.
 
I doubt it would even measure. You can check it yourself by doing a baseline
performance monitor before and after with the computer at the same load state other
than the change of IP addresses. Task Manager/performance would be the quick way to
view cpu and memory use or use Performance Monitor for much more detailed tracking
abilities including time graphs for several counter for network/cpu/memory. -- Steve
 
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