[  520.648345] netdevsim netdevsim356 eni356np1: renamed from eth0
[  520.745801] netdevsim netdevsim549 eni549np1: renamed from eth1
[  520.996917] Could not find device with ifindex 2000 in netnsfd 11
[  520.997117] Could not find netns with fd: 2000
[  520.997212] Cannot link a netdevsim to itself
[  520.997322] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).