[  524.268189] netdevsim netdevsim507 eni507np1: renamed from eth0
[  524.365207] netdevsim netdevsim713 eni713np1: renamed from eth1
[  524.633182] Could not find device with ifindex 2000 in netnsfd 11
[  524.633392] Could not find netns with fd: 2000
[  524.633523] Cannot link a netdevsim to itself
[  524.633644] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).