[  488.962804] netdevsim netdevsim271 eni271np1: renamed from eth0
[  488.963305] netdevsim netdevsim563 eni563np1: renamed from eth1
[  489.050987] Could not find device with ifindex 2000 in netnsfd 11
[  489.051092] Could not find netns with fd: 2000
[  489.051138] Cannot link a netdevsim to itself
[  489.051190] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).