[ 1317.884167][T12062] netdevsim netdevsim621 eni621np1: renamed from eth1
[ 1317.985323][T12064] netdevsim netdevsim418 eni418np1: renamed from eth0
[ 1321.640094][T12056] Could not find device with ifindex 2000 in netnsfd 11
[ 1321.640961][T12056] Could not find netns with fd: 2000
[ 1321.641593][T12056] Cannot link a netdevsim to itself
[ 1321.642698][T12056] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).