[  522.478136] netdevsim netdevsim454 eni454np1: renamed from eth0
[  522.575623] netdevsim netdevsim606 eni606np1: renamed from eth1
[  522.814478] Could not find device with ifindex 2000 in netnsfd 11
[  522.814638] Could not find netns with fd: 2000
[  522.814719] Cannot link a netdevsim to itself
[  522.814813] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).