On Wed, 12 Jan 2011, John  BORIS wrote:
> The only thing between the servers I am testing is the electronics of
> the switch. they attach to the same switch.

Ok, I'm not a network engineer (INANE?  Hoo, boy!) so someone can correct 
me if I'm wrong, but I keep seeing references to ports on the switch.  The 
ports on the switch have pretty much nothing to do with IP traffic unless 
the switch is layer 3, in which case it's more than a switch.  :)

A switch is layer 2, so it's only dealing with ethernet (MAC addresses and 
ARP tables, not IP addresses and routing tables).  If the web server 
machine and your client machine are on two different subnets, then the 
network traffic is going to leave the switch and go to a router somewhere 
regardless of whether the two machines are plugged into switch ports that 
are next to each other.

Now, if the two machines are on the *same* IP subnet, they would not be 
dealing with routing at all, and if the switch were smart enough, it would 
pass the packets to the correct MAC address and not bother sending the 
packets upstream anywhere.

I may have missed the part where you mentioned what the IP network 
addressing scheme is at your place.

-Adam (a different one ;) )
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