On Mon, 9 Oct 2006 17:39:02 +0200 Jean Delvare <[EMAIL PROTECTED]> wrote:
> Hi all, > > I am wondering what exactly the rx_bytes and tx_bytes values exported > under statistics/ in sysfs are supposed to represent. > > Most popular ethernet drivers (8139too, e100, 3c59x) count the bytes in > software, so they only take into account the bytes they actually send and > receive. This excludes the 4-byte ethernet CRC if I understand correctly. > > Other drivers, on the other hand, get the transfered bytes statistics from > hardware registers, and these appear to include the 4-byte CRC in the > total count. This is the case of sk98lin and e1000, for example. > > So my question is, which drivers are right? Are we counting the emitted > and received bytes at software level or at hardware level? Or do we just > not care about the 4-byte/packet difference and both are acceptable? > > Thanks, Does it really mater that much, unless you are charging people per byte. -- Stephen Hemminger <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
