[  485.512801] netdevsim netdevsim691 eni691np1: renamed from eth1
[  485.613482] netdevsim netdevsim441 eni441np1: renamed from eth0
[  485.968414] Could not find device with ifindex 2000 in netnsfd 11
[  485.968570] Could not find netns with fd: 2000
[  485.968666] Cannot link a netdevsim to itself
[  485.968792] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).