On Wed, Jan 25, 2012 at 09:39:40AM -0500, Rob Owens wrote: > I've got an onboard NIC, supposedly 100Mb. I've been doing a dd over > ssh for the last hour, and iftop tells me that I'm transmitting at a > steady 186Mb, while receiving about 1.2Mb. > > I read up a bit on full duplex, and as I understand it full duplex means > the NIC would be capable of transmitting a theoretical max of 100Mb > while simultaneously receiving 100Mb. My card seems to be transmitting > at nearly double its theoretical max. > > Is this possible, or is iftop lying to me? > > I've got gigabit networking between the two computers, and the second > computer has gigabit ethernet. > I just ran iftop on the second computer, and it reports receiving at a rate of 92Mb. So apparently iftop is lying to me, at least on one of the computers.
I guess I'll find out which one is telling the truth (if any) based on how long it takes for this 160GB transfer. -Rob -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120125151514.ga4...@aurora.owens.net
