[  527.651119] netdevsim netdevsim670 eni670np1: renamed from eth1
[  527.747308] netdevsim netdevsim507 eni507np1: renamed from eth0
[  527.982601] Could not find device with ifindex 2000 in netnsfd 11
[  527.982796] Could not find netns with fd: 2000
[  527.982938] Cannot link a netdevsim to itself
[  527.983041] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).