[  827.974550][T14763] netdevsim netdevsim503 eni503np1: renamed from eth0
[  827.995998][T14766] netdevsim netdevsim648 eni648np1: renamed from eth1
[  828.645367][T14751] Could not find device with ifindex 2000 in netnsfd 11
[  828.646224][T14751] Could not find netns with fd: 2000
[  828.646604][T14751] Cannot link a netdevsim to itself
[  828.647069][T14751] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).