There are still something puzzled me, can you do some help? 1. what's the meaning of the flag VALID_POLICING? I don't see any meaning of the flag VALID_POLICING in function netdev_linux_set_policing(). you see, whether the parameter "kbits_rate"equals to 0, the clause netdev->cache_valid |= VALID_POLICING; will be executed only if the conditions matches error !=0
another strange phenomenon is that, when i set breakpoint on function netdev_linux_set_policing, I found that netdev->cache_valid equals to 0x73 which means VALID_POLICING has set before this function but I can't find anywhere to set this flag except in function netdev_linux_set_policing. why? 2. which event triggered message RTM_NEWLINK? I found that when use command "add-port br0 tap111", first function netdev_linux_set_policing() will be called, then netdev_linux_update() with message RTM_NEWLINK and this message will lead to netdev->cache_valid to clear the flag VALID_POLICING. my question is, the port tap111 is a system port, I have created it in kernel before add it to ovs bridge. and I didn't to anything like up the port or change the port's namespace or change mtu/mac etc, but why RTM_NEWLINK is trigerred? At 2015-07-23 23:51:41, "Ben Pfaff" <b...@nicira.com> wrote: >On Thu, Jul 23, 2015 at 11:12:22AM +0800, ychen wrote: >> sorry, but how to contribute to this thread: >> http://openvswitch.org/pipermail/discuss/2015-May/017687.html >> It seems I can only reply this thread >> http://openvswitch.org/pipermail/discuss/2015-July/018324.html > >I don't see how any of your solutions solve the problem described in >http://openvswitch.org/pipermail/discuss/2015-May/017687.html. I don't >see much value in just tweaking the parameters of the problem.
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