[  755.950648][T14566] netdevsim netdevsim457 eni457np1: renamed from eth0
[  755.958131][T14567] netdevsim netdevsim553 eni553np1: renamed from eth1
[  756.515912][T14553] Could not find device with ifindex 2000 in netnsfd 11
[  756.516403][T14553] Could not find netns with fd: 2000
[  756.516762][T14553] Cannot link a netdevsim to itself
[  756.517163][T14553] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).