I start to think that, if we want to utilize HSA in OVN, it may be good to remodel this work so that it could parse the Southbound db and conduct HSA with simpler logical flows and broader view of the logical networks.
I will post V2 of the series. Again, hope to hear any feedback~ Thanks, Alex Wang, On Wed, May 27, 2015 at 11:39 AM, Alex Wang <al...@nicira.com> wrote: > Yeah, I think it will be useful. I think current OVN's flow should be > simpler > and allow us to make more optimization/adjustment as OVN grows. > > Thanks, > Alex Wang, > > On Wed, May 27, 2015 at 9:56 AM, Ben Pfaff <b...@nicira.com> wrote: > >> On Mon, Mar 30, 2015 at 03:46:25PM -0700, Alex Wang wrote: >> > This series implements a prototype of using Header Space Analysis (HSA) >> > for OVS OpenFlow table analysis. The implementation allows users to >> find >> > all possible output ports with the input header format reachable from a >> > specified input port. It also allows users to check if there is any >> loop >> > formed in the OpenFlow table. >> > >> > There are two major limitations of the prototype. Firstly, only a >> limited >> > set of OFPACT_* actions are supported and extending to work with more >> actions >> > can be very complicated. Secondly, the implementation is in single >> thread, >> > and can take 20+ mins to run on a production setup with ~100 OpenFlow >> rules. >> > >> > Since this is a very complicated work, I'd like to post the prototype >> out >> > for high-level discussions (e.g. feasibility, design, multi-threading). >> >> Hi Alex. >> >> I've delayed reviewing this mostly because I've been busy, but also >> because I wasn't too sure how useful it would be for most users. But >> OVN might be a really good in-tree test case. We could even incorporate >> it into the testsuite, if it is fast enough (and make it an optional >> part of the testsuite, if it is too slow). Do you have an idea whether >> this HSA implementation would be appropriate for OVN? >> >> Thanks, >> >> Ben. >> > > _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
