On Wed, Apr 12, 2006 at 10:59:52PM +0800, fooler wrote: > >>set speed sync > > > >And how does that change the pppoe ethernet frames? > > nothing change and still the same... ethernet frames are at layer 2 while > synchronization (either asynchronous or synchronous) is at layer 1... > synchronous is much better than asynchronous for ethernet links...
Then I think you have a misunderstanding. Ethernet frames are *always* synchronous. There are no 'start' and 'stop' bits in ethernet, only frame delimiters. The sync/async difference only has meaning for serial links (e.g. where layer 1 is RS232 / V24) PPP frames carried inside ethernet (i.e. pppoe) are therefore also carried using synchronous encoding, since ethernet is synchronous. Brian. _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
