[  513.290631] netdevsim netdevsim567 eni567np1: renamed from eth1
[  513.388183] netdevsim netdevsim444 eni444np1: renamed from eth0
[  513.594755] Could not find device with ifindex 2000 in netnsfd 11
[  513.594957] Could not find netns with fd: 2000
[  513.595049] Cannot link a netdevsim to itself
[  513.595156] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).