[  474.055185] netdevsim netdevsim304 eni304np1: renamed from eth0
[  474.058584] netdevsim netdevsim522 eni522np1: renamed from eth1
[  474.139224] Could not find device with ifindex 2000 in netnsfd 11
[  474.139307] Could not find netns with fd: 2000
[  474.139351] Cannot link a netdevsim to itself
[  474.139419] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).