I can take a look.

On 8/27/18, 9:47 AM, "[email protected] on behalf of Ben 
Pfaff" <[email protected] on behalf of [email protected]> wrote:

    On Mon, Aug 27, 2018 at 01:20:15PM +0000, Zhang, Jing C. (Nokia - 
CA/Ottawa) wrote:
    > We have customers reporting sluggish HTTP download with OVS 2.9.0. After 
debugging, we find the issue is OVS 2.9.0 native firewall drops TCP control 
packets (TCP ACK) with empty payload. The issue can be avoided by either 
reverting back to the legacy Linux bridge firewall or enabling TCP timestamp at 
both HTTP server and client sides.
    > $ ovs-vswitchd --version
    > ovs-vswitchd (Open vSwitch) 2.9.0
    > DPDK 17.11.0
    
    Darrell, this seems like it's in your area.  Will you take a look?
    
    Thanks,
    
    Ben.
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