[  455.477813] netdevsim netdevsim269 eni269np1: renamed from eth0
[  455.478534] netdevsim netdevsim645 eni645np1: renamed from eth1
[  455.574763] Could not find device with ifindex 2000 in netnsfd 11
[  455.574928] Could not find netns with fd: 2000
[  455.574993] Cannot link a netdevsim to itself
[  455.575048] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).