[ 1291.726579][T12778] netdevsim netdevsim312 eni312np1: renamed from eth0
[ 1291.843300][T12779] netdevsim netdevsim666 eni666np1: renamed from eth1
[ 1294.629331][T12766] Could not find device with ifindex 2000 in netnsfd 11
[ 1294.631163][T12766] Could not find netns with fd: 2000
[ 1294.632627][T12766] Cannot link a netdevsim to itself
[ 1294.634539][T12766] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).