[  474.341163] netdevsim netdevsim504 eni504np1: renamed from eth0
[  474.341615] netdevsim netdevsim594 eni594np1: renamed from eth1
[  474.429562] Could not find device with ifindex 2000 in netnsfd 11
[  474.429713] Could not find netns with fd: 2000
[  474.429819] Cannot link a netdevsim to itself
[  474.429939] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).