[  511.348129] netdevsim netdevsim644 eni644np1: renamed from eth1
[  511.444766] netdevsim netdevsim366 eni366np1: renamed from eth0
[  511.640878] Could not find device with ifindex 2000 in netnsfd 11
[  511.641025] Could not find netns with fd: 2000
[  511.641130] Cannot link a netdevsim to itself
[  511.641225] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).