At 10:45 AM 11/1/00, Priscilla Oppenheimer wrote:
>>2. When a multicast packet shoud be sent to this address, the destination
>>address in the MAC packet header should be set to 0130.b6f7.3000?
>
>Yes, that is right. The least-significant bit is set to one. It is the
>first bit transmitted. This means that all receivers recognize immediately
>that this is a multicast/broadcast frame. As they continue to receive
>bits, they recognize that it is a multicast address, since all bits aren't
>set to zero, as they would be for broadcast.
That should have read, "since all bits aren't set to one, as they would be
for broadcast." I'm sure you knew that! &;-) Broadcast would be
FF:FF:FF:FF:FF:FF. Multicast would be an odd number. Multicasts are a
subset of broadcasts. Still assuming canonical Ethernet, of course.
Priscilla
________________________
Priscilla Oppenheimer
http://www.priscilla.com
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