> On Dec 4, 2016, at 10:44 PM, sundk <sundk...@163.com> wrote: > > hi All > > 1. is there any load balance in current ovs?
Yes. > after read the code, it seems that in kernel mode only a single thread to > process the packets, no load balance. am I right? and in user space? This is incorrect. > 2. we know that ovs support openflow, openflow table entry only exists in > user space, right?. kernel mode entries are just caches and maybe several > user space openflow entries in pipeline composed a kernel entry, am I right? Correct. > 3. we know in openflow each entry and each table has counters such as pkt > counter and duration. what is the sync mechanism between user entry and > kernel entry? as many pkts don't go through user space, but the counters in > user space openflow entries' counters need update. The userspace polls the kernel at regular intervals and updates the OpenFlow rule counters based on the kernel entries. > 4. not all entries can install in kernel mode, such as entries with meter > actions. in other words kernel entries only supports a few of actions, not > all actions just as user space entries support, am I write? Yes, meters actions are not implemented in the kernel, but very few actions are not supported in the kernel. --Justin _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
