[  454.612469] netdevsim netdevsim356 eni356np1: renamed from eth0
[  454.616538] netdevsim netdevsim756 eni756np1: renamed from eth1
[  454.708296] Could not find device with ifindex 2000 in netnsfd 11
[  454.708403] Could not find netns with fd: 2000
[  454.708449] Cannot link a netdevsim to itself
[  454.708499] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).