[  485.110193] netdevsim netdevsim469 eni469np1: renamed from eth0
[  485.211355] netdevsim netdevsim531 eni531np1: renamed from eth1
[  485.568598] Could not find device with ifindex 2000 in netnsfd 11
[  485.568743] Could not find netns with fd: 2000
[  485.568820] Cannot link a netdevsim to itself
[  485.568906] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).