[ 1236.963628][T12912] netdevsim netdevsim508 eni508np1: renamed from eth0
[ 1237.041829][T12910] netdevsim netdevsim750 eni750np1: renamed from eth1
[ 1239.692222][T12904] Could not find device with ifindex 2000 in netnsfd 11
[ 1239.693446][T12904] Could not find netns with fd: 2000
[ 1239.694362][T12904] Cannot link a netdevsim to itself
[ 1239.695447][T12904] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).