[  478.519185] netdevsim netdevsim271 eni271np1: renamed from eth0
[  478.519510] netdevsim netdevsim532 eni532np1: renamed from eth1
[  478.611888] Could not find device with ifindex 2000 in netnsfd 11
[  478.612006] Could not find netns with fd: 2000
[  478.612057] Cannot link a netdevsim to itself
[  478.612122] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).