[ 1298.291212][T12849] netdevsim netdevsim421 eni421np1: renamed from eth0
[ 1298.446895][T12846] netdevsim netdevsim651 eni651np1: renamed from eth1
[ 1301.215101][T12837] Could not find device with ifindex 2000 in netnsfd 11
[ 1301.217605][T12837] Could not find netns with fd: 2000
[ 1301.218964][T12837] Cannot link a netdevsim to itself
[ 1301.220388][T12837] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).