[  473.788150] netdevsim netdevsim281 eni281np1: renamed from eth0
[  473.788848] netdevsim netdevsim767 eni767np1: renamed from eth0
[  473.866970] Could not find device with ifindex 2000 in netnsfd 11
[  473.867114] Could not find netns with fd: 2000
[  473.867223] Cannot link a netdevsim to itself
[  473.867339] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).