[  538.164400] netdevsim netdevsim497 eni497np1: renamed from eth0
[  538.266382] netdevsim netdevsim564 eni564np1: renamed from eth1
[  538.573568] Could not find device with ifindex 2000 in netnsfd 11
[  538.573767] Could not find netns with fd: 2000
[  538.573872] Cannot link a netdevsim to itself
[  538.574004] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).