[ 1020.533892][T12070] netdevsim netdevsim456 eni456np1: renamed from eth0
[ 1020.644629][T12066] netdevsim netdevsim549 eni549np1: renamed from eth1
[ 1022.392769][T12453] Could not find device with ifindex 2000 in netnsfd 11
[ 1022.393841][T12453] Could not find netns with fd: 2000
[ 1022.394512][T12453] Cannot link a netdevsim to itself
[ 1022.395576][T12453] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).