Re: understand multicasting from the client/host perspective .

In article <1151341027.363421.64350@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
April <yinzhang57@xxxxxxxxx> wrote:
...
The multicast MAC part is where I have difficulty to understand well ..

like why this is needed? As the sender, it seems to me it only needs
to send to an IP ... I can think this signifies the frame is multicast,

Because there could be dozens or hundreds of hosts that want to
receive the data.

Its much more efficient to send a packet to *one* multicast address
than to sent it to *multiple* IP addresses.

--
-- Rod --
rodd(at)polylogics(dot)com
.

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