[  473.329433] netdevsim netdevsim428 eni428np1: renamed from eth0
[  473.330226] netdevsim netdevsim683 eni683np1: renamed from eth0
[  473.395908] Could not find device with ifindex 2000 in netnsfd 11
[  473.396050] Could not find netns with fd: 2000
[  473.396157] Cannot link a netdevsim to itself
[  473.396274] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).