[ 1009.246959][T12129] netdevsim netdevsim391 eni391np1: renamed from eth0
[ 1009.275945][T12128] netdevsim netdevsim612 eni612np1: renamed from eth1
[ 1011.068246][T12451] Could not find device with ifindex 2000 in netnsfd 11
[ 1011.069196][T12451] Could not find netns with fd: 2000
[ 1011.070021][T12451] Cannot link a netdevsim to itself
[ 1011.071175][T12451] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).