[  523.473109] netdevsim netdevsim662 eni662np1: renamed from eth1
[  523.570459] netdevsim netdevsim271 eni271np1: renamed from eth0
[  523.802759] Could not find device with ifindex 2000 in netnsfd 11
[  523.802956] Could not find netns with fd: 2000
[  523.803076] Cannot link a netdevsim to itself
[  523.803216] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).