On Tue, 15 Jun 2004, MCG LU Fengcheng wrote: > For 100Mb/s netcard, does mean incoming & outgoing speed are > both 100M/s? It is the speed of the physical layer. Which directions can be active at the same time depends on the duplex. In full duplex both transmit and receive is/can be active at the same time with a total capacity of 200Mbit/s (100Mbit/s in each direction). This is normally the default in a switched network or direct host<->host connections where there only is one transmitter per direction (host or switch). half duplex is only one direction at a time. This is the only possible mode when using a hub as there may be more than one transmitter per channel and CSMACD is in effect to control which station may transmit. Regards Henrik - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
