[  511.681330] netdevsim netdevsim677 eni677np1: renamed from eth1
[  511.779375] netdevsim netdevsim269 eni269np1: renamed from eth0
[  512.000762] Could not find device with ifindex 2000 in netnsfd 11
[  512.000954] Could not find netns with fd: 2000
[  512.001061] Cannot link a netdevsim to itself
[  512.001183] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).