[  523.141987] netdevsim netdevsim617 eni617np1: renamed from eth1
[  523.239953] netdevsim netdevsim483 eni483np1: renamed from eth0
[  523.451858] Could not find device with ifindex 2000 in netnsfd 11
[  523.452028] Could not find netns with fd: 2000
[  523.452118] Cannot link a netdevsim to itself
[  523.452217] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).