[  475.505820] netdevsim netdevsim685 eni685np1: renamed from eth1
[  475.606362] netdevsim netdevsim414 eni414np1: renamed from eth0
[  475.964755] Could not find device with ifindex 2000 in netnsfd 11
[  475.964907] Could not find netns with fd: 2000
[  475.964987] Cannot link a netdevsim to itself
[  475.965089] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).