[  489.824785] netdevsim netdevsim509 eni509np1: renamed from eth0
[  489.919874] netdevsim netdevsim553 eni553np1: renamed from eth1
[  490.149690] Could not find device with ifindex 2000 in netnsfd 11
[  490.150059] Could not find netns with fd: 2000
[  490.150146] Cannot link a netdevsim to itself
[  490.150254] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).