[ 1340.011493][T12928] netdevsim netdevsim471 eni471np1: renamed from eth0
[ 1340.022155][T12927] netdevsim netdevsim631 eni631np1: renamed from eth1
[ 1342.695717][T12915] Could not find device with ifindex 2000 in netnsfd 11
[ 1342.697287][T12915] Could not find netns with fd: 2000
[ 1342.698172][T12915] Cannot link a netdevsim to itself
[ 1342.699258][T12915] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).