[ 1010.831373][T12066] netdevsim netdevsim520 eni520np1: renamed from eth1
[ 1010.951217][T12127] netdevsim netdevsim417 eni417np1: renamed from eth0
[ 1012.773448][T12550] Could not find device with ifindex 2000 in netnsfd 11
[ 1012.774388][T12550] Could not find netns with fd: 2000
[ 1012.775003][T12550] Cannot link a netdevsim to itself
[ 1012.775792][T12550] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).