[  485.460283] netdevsim netdevsim506 eni506np1: renamed from eth0
[  485.562217] netdevsim netdevsim652 eni652np1: renamed from eth1
[  485.938016] Could not find device with ifindex 2000 in netnsfd 11
[  485.938207] Could not find netns with fd: 2000
[  485.938313] Cannot link a netdevsim to itself
[  485.938444] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).