[  489.614986] netdevsim netdevsim493 eni493np1: renamed from eth0
[  489.711711] netdevsim netdevsim564 eni564np1: renamed from eth1
[  489.914805] Could not find device with ifindex 2000 in netnsfd 11
[  489.915068] Could not find netns with fd: 2000
[  489.915143] Cannot link a netdevsim to itself
[  489.915228] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).