Re: NIC to NIC connection
От | Gaetano Mendola |
---|---|
Тема | Re: NIC to NIC connection |
Дата | |
Msg-id | 4177EC64.30009@mbigroup.it обсуждение исходный текст |
Ответ на | Re: NIC to NIC connection ("Jay A. Kreibich" <jak@uiuc.edu>) |
Список | pgsql-admin |
Jay A. Kreibich wrote: > On Thu, Oct 21, 2004 at 10:07:33AM +0200, Gaetano Mendola scratched on the wall: > >>Bruno Wolff III wrote: >> >>>Also I believe that if >>>a switch doesn't remember where a particular mac address is it will send >>>the packet to all of the attached ports. >> >>I don't think so, I guess the switch perform a sort of arpping in order to >>detect who have a macaddress assigned, > > > No, he's right. If the MAC to port mapping has not been learned by > the switch, the packet is flooded to all ports or (for really bad > switches) dropped. A switch is a pure layer-two device and ARP > involves layer-three addresses and concepts. We have some switches that are able to do ip routing too... :-( I have to admint that I'm not a switch specialist but given the ability to do routing I was imagine the arpping trich... Regards Gaetano Mendola
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