[ 1269.496303][T12740] netdevsim netdevsim619 eni619np1: renamed from eth1
[ 1269.650202][T12742] netdevsim netdevsim422 eni422np1: renamed from eth0
[ 1272.454967][T12729] Could not find device with ifindex 2000 in netnsfd 11
[ 1272.457404][T12729] Could not find netns with fd: 2000
[ 1272.458737][T12729] Cannot link a netdevsim to itself
[ 1272.460479][T12729] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).