Hi: DTrace is the tool instrumenting the request.
Thanks Lei ----- Original Message ----- From: James Carlson <[EMAIL PROTECTED]> Date: Wednesday, July 26, 2006 9:36 am Subject: Re: [zones-discuss] traffic/data between zones To: Brian Kolaci <[EMAIL PROTECTED]> Cc: zones-discuss@opensolaris.org > Brian Kolaci writes: > > IHAC that needs proof that traffic between local zones on the > same system > > will not in fact hit the NIC card. There's two scenarios. > > I guess the first question is what sort of proof would be > satisfactory. > > If we can cite parts of the code, would that help? Or does this > person need something with a more solid, mathematic basis? > > (I have to admit that the word "proof" is tripping me up here.) > > > First, if one does FTP or scp to transfer files between the zones, > > how can I prove it doesn't hit the NIC or wire? What function in > > the IP driver would I look for with DTrace that would hit the NIC > or wire? > > I would check for calls to put(9F) and putnext(9F) from within the IP > module (which includes TCP). > > > Second, the same proof (not sure why he thinks this but...) for a > > filesystem lofs mounted in both zones (from the global zone) and can > > just copy files back and forth between the zones without hitting the > > NIC/wire. > > "huh?" > > Perhaps the right question in response is: "what problem are you > seeing, and what are you trying to do?" > > It's quite unclear to me what would prompt a question about lofs that > looks like the above. > > -- > James Carlson, KISS Network > <[EMAIL PROTECTED]>Sun Microsystems / 1 Network Drive > 71.232W Vox +1 781 442 2084 > MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 > 1677_______________________________________________ > zones-discuss mailing list > zones-discuss@opensolaris.org > _______________________________________________ zones-discuss mailing list zones-discuss@opensolaris.org
