[  523.023287] netdevsim netdevsim441 eni441np1: renamed from eth0
[  523.120637] netdevsim netdevsim641 eni641np1: renamed from eth1
[  523.373705] Could not find device with ifindex 2000 in netnsfd 11
[  523.373885] Could not find netns with fd: 2000
[  523.373982] Cannot link a netdevsim to itself
[  523.374087] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).