From: Michael Snyder (msnyder@xxxxxxx)
Date: Fri Aug 23 2002 - 02:35:24 GMT-3
I stand corrected.
It's a design flaw if more than one of the ports is used on the same
subnet.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Hansang Bae
Sent: Thursday, August 22, 2002 11:53 PM
To: ccielab@groupstudy.com
Subject: RE: Challenge Question
At 09:07 AM 8/22/2002 -0500, Michael Snyder wrote:
>The point of having four ports is to get four times the traffic. If
>they all have the same mac, then you get one traffic flow at all four
>ports.
>This is a design flaw.
Well, then somebody needs to tell the IEEE folks that they should yank
it out of the standard. There are two schools of thought about MAC
addresses. It belongs to the NIC, or it belongs to the machine. Sun
took the latter approach, that's all.
Normally, you would hook up the quad card on four different subnets
which would cause no harm. If you have two machines sharing the same
MAC addresses, they will stomp on each other's traffic. This will cause
the TCP stack to reject a particular flow since the sequence numbers and
acks will not line up.
hsb
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