Hi John, On Mon, 13 Feb 2006, John Beck wrote:
> http://www.opensolaris.org/os/community/approachability/nwam/architecture/ > Feedback is encouraged on approach-discuss. Also, please note the > version and date at the top of the document (their initial values are > 0.1 and today) as we will be updating the document on a regular basis > based on both community feedback and our own discussions. Section 2: damping events. How long will this timer be and why? What about 'flaps' that occur at exactly timer+1 each time? Can you describe scenarios where this dampening would definitely be a good idea? Ie this seems a bit premature to put in the architecture to me. Why not just go for something more slightly more simple - detect and 'kill' (for some period of time) fast bouncing and unstable links? Section 3: Events and discussion of information needed from kernel is interesting. Seems to me a possible direction for future work is to 'generify' PF_ROUTE into a general kernel->userspace event reporting channel. Rather than having dozens of different 'channels' (be they various ioctls() that have to polled, PF_ROUTE, etc.) one extensible kernel protocol could do this (there's precedent here in a certain other Unix-like system). Also, I'm unclear on the role of hald here. Is the idea here that the more general user-level tools will talk to HAL, and have system interfaces hook into back of HAL, with the profile daemon as a 'sideband' interface for storing preferences, e.g. something like: gnome-network-widget---profile daemon | | HAL / | \______ / | \ PF_ROUTE wireless devs monitoring backend monitoring Or will the profile daemon and HAL sort of co-exist side-by-side, with 'gnome-network-widget' having to retrieve some system information from HAL and some other information from profile-daemon (in which case - why bother with HAL at all)? A diagramme of what the thinking is on what pieces are needed, and where they'll fit in would be very useful! :) regards, -- Paul Jakma, Network Approachability, KISS. http://quagga.ireland.sun.com/ Sun Microsystems, Dublin, Ireland. tel: EMEA x19190 / +353 1 819 9190
