[  522.924373] netdevsim netdevsim387 eni387np1: renamed from eth0
[  523.020575] netdevsim netdevsim634 eni634np1: renamed from eth1
[  523.298060] Could not find device with ifindex 2000 in netnsfd 11
[  523.298272] Could not find netns with fd: 2000
[  523.298373] Cannot link a netdevsim to itself
[  523.298485] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).