[  487.627560] netdevsim netdevsim498 eni498np1: renamed from eth0
[  487.627923] netdevsim netdevsim539 eni539np1: renamed from eth1
[  487.713527] Could not find device with ifindex 2000 in netnsfd 11
[  487.713655] Could not find netns with fd: 2000
[  487.713793] Cannot link a netdevsim to itself
[  487.713913] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).