[  485.271107] netdevsim netdevsim573 eni573np1: renamed from eth1
[  485.367996] netdevsim netdevsim507 eni507np1: renamed from eth0
[  485.575440] Could not find device with ifindex 2000 in netnsfd 11
[  485.575777] Could not find netns with fd: 2000
[  485.575868] Cannot link a netdevsim to itself
[  485.575971] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).