[  523.672232] netdevsim netdevsim434 eni434np1: renamed from eth0
[  523.769317] netdevsim netdevsim527 eni527np1: renamed from eth1
[  524.020056] Could not find device with ifindex 2000 in netnsfd 11
[  524.020304] Could not find netns with fd: 2000
[  524.020421] Cannot link a netdevsim to itself
[  524.020557] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).