[ovs-dev] ovs drop udp packets seriously

lg.yue kernelluck at 163.com
Fri Mar 24 03:42:58 UTC 2017


Hi,all:
    accroding to my test , packet loss almost  100 percent happens. 
my test environment: kernel 3.10.0-327.36.3.el7, ovs branch-2.7, kernel datapath
packet flow:
udp client(send 1024 bytes packets) ----> ovs gateway 192.168.122.132(DNAT, eth1-->br-eth1) ------>  vm 192.168.1.132(udp server runs inside namespace)
COUNT0: packets client send.
COUNT1: packets received by eth1(tc ingress statistics) 
COUNT2:packets sent to ofport corresponding to 192.168.1.132.(dump-flows statistics)
COUNT3: packets received by vm(tcpdump)


the result is  COUNT0>COUNT1>COUNT2>COUNT3, for example 102401, 92438,71017,68069.
ovs drop packets seriously.




thanks.


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