Just an explanation to distinguish processing of layer 3 multicast packets (by routers) from layer 2 multicast frames (by bridges). Due to the fact that the multicast MAC addresses are not permitted in the Ethernet frame as source addresses, multicast MAC addresses can not be learnt by the bridges, so the processing of multicast addresses by bridges consists in broadcasting, flooding frames in all but source port, instead of forwarding them only by ports where these addresses were learnt. Excuse me if it sounds a bit "academic". GI Stephen Hemminger wrote: >On Wed, 8 Jun 2005 09:43:46 +0200 >"Tomo Ceferin" <tomo@xxxxxxxxxxxxxx> wrote: > > > >>Hi, >> >>I checked archives but I haven't found this subject before. >> >>Does bridge support multicast or not? I checked the code and it would seem >>that bridge will flood multicast frames to all but source port. >> >>Rgds, Tomo Ceferin >>Active Tools >> >> > >Yes, that is what multicast is. > > >------------------------------------------------------------------------ > >_______________________________________________ >Bridge mailing list >Bridge@xxxxxxxxxxxxxx >http://lists.osdl.org/mailman/listinfo/bridge > >