[  488.600832] netdevsim netdevsim671 eni671np1: renamed from eth1
[  488.701252] netdevsim netdevsim291 eni291np1: renamed from eth0
[  489.109839] Could not find device with ifindex 2000 in netnsfd 11
[  489.109989] Could not find netns with fd: 2000
[  489.110066] Cannot link a netdevsim to itself
[  489.110175] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).