[ 1011.493038][T12130] netdevsim netdevsim260 eni260np1: renamed from eth0
[ 1011.603837][T12134] netdevsim netdevsim619 eni619np1: renamed from eth1
[ 1013.499245][T12454] Could not find device with ifindex 2000 in netnsfd 11
[ 1013.500193][T12454] Could not find netns with fd: 2000
[ 1013.500910][T12454] Cannot link a netdevsim to itself
[ 1013.501727][T12454] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).