[  522.350955] netdevsim netdevsim519 eni519np1: renamed from eth1
[  522.448332] netdevsim netdevsim356 eni356np1: renamed from eth0
[  522.700840] Could not find device with ifindex 2000 in netnsfd 11
[  522.701036] Could not find netns with fd: 2000
[  522.701112] Cannot link a netdevsim to itself
[  522.701200] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).