[  484.292093] netdevsim netdevsim349 eni349np1: renamed from eth0
[  484.292793] netdevsim netdevsim647 eni647np1: renamed from eth1
[  484.381151] Could not find device with ifindex 2000 in netnsfd 11
[  484.381249] Could not find netns with fd: 2000
[  484.381301] Cannot link a netdevsim to itself
[  484.381351] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).