[  839.978341][T14602] netdevsim netdevsim491 eni491np1: renamed from eth0
[  840.000719][T14604] netdevsim netdevsim592 eni592np1: renamed from eth1
[  840.687374][T14590] Could not find device with ifindex 2000 in netnsfd 11
[  840.688292][T14590] Could not find netns with fd: 2000
[  840.688705][T14590] Cannot link a netdevsim to itself
[  840.689200][T14590] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).