[root@kunpeng82 ovs]# ip netns exec ns_s2 ifconfig s2_p4 up 查了下原因,原来是lo处于down状态 Bridge"s1"Port"s1_p2"Interface"s1_p2"error:"could not open network device s1_p2 (No such device)"Port"s1"Interface"s1"type:inter