[  474.893435] netdevsim netdevsim451 eni451np1: renamed from eth0
[  474.893638] netdevsim netdevsim555 eni555np1: renamed from eth1
[  474.977088] Could not find device with ifindex 2000 in netnsfd 11
[  474.977206] Could not find netns with fd: 2000
[  474.977257] Cannot link a netdevsim to itself
[  474.977321] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).