[ 1269.628170][T12757] netdevsim netdevsim637 eni637np1: renamed from eth1
[ 1269.746057][T12758] netdevsim netdevsim298 eni298np1: renamed from eth0
[ 1272.279878][T12745] Could not find device with ifindex 2000 in netnsfd 11
[ 1272.282613][T12745] Could not find netns with fd: 2000
[ 1272.284178][T12745] Cannot link a netdevsim to itself
[ 1272.285556][T12745] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).