Regards _Sugesh
From: qintao (F) [mailto:qint...@huawei.com] Sent: Monday, July 18, 2016 6:52 AM To: Chandran, Sugesh <sugesh.chand...@intel.com> Cc: wuhao 00271188 <w00271...@notesmail.huawei.com.cn>; lukai 00197897 <l00197...@notesmail.huawei.com.cn>; liuguifeng 00230956 <l00230...@notesmail.huawei.com.cn>; guoyilong 00231009 <g00231...@notesmail.huawei.com.cn>; qintao (F) <qint...@huawei.com> Subject: a question about userspace ovs Dear sugesh, As I have read the detailed documentation for configuring native userspace-tunneling in OVS with/without DPDK. And then I have complete some experiments as the documentations mentioned. In the process ,I have some doubt about the forwards between the two bridges, br-int and the br-phy. After I have completed some tests, I knew the forwarding process is completed by the route table. As I run the command "ovs-appctl ovs/route/show "and "ip route", the same route information about the two bridges forwarding packets apperad in the "ovs route table"and "linux route table".And then I run the command "ip route del***"to delete the route information ,the vms will not "ping" successfully. Now the question is that the datapath of forwarding process adapts the userspace ovs or original ovs? [Sugesh] the data forwarding happens at userspace only. But the tunnel route entries in ovs route table are populated from linux route table. Userspace OVS uses this information to route the tunnel packets to br-phy1. Hope this answers your query. Would you mind telling some details for me ? Thanks very much!!! Best regards, Tony QIN [cid:image002.jpg@01D1E0E5.45E6EEF0]
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