[  485.694598] netdevsim netdevsim268 eni268np1: renamed from eth0
[  485.695265] netdevsim netdevsim603 eni603np1: renamed from eth1
[  485.783215] Could not find device with ifindex 2000 in netnsfd 11
[  485.783306] Could not find netns with fd: 2000
[  485.783364] Cannot link a netdevsim to itself
[  485.783415] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).