[  848.207868][T15782] netdevsim netdevsim390 eni390np1: renamed from eth0
[  848.234721][T15781] netdevsim netdevsim764 eni764np1: renamed from eth1
[  848.979540][T15769] Could not find device with ifindex 2000 in netnsfd 11
[  848.980552][T15769] Could not find netns with fd: 2000
[  848.981797][T15769] Cannot link a netdevsim to itself
[  848.982425][T15769] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).