[ 1021.130847][T12580] netdevsim netdevsim663 eni663np1: renamed from eth1
[ 1021.217123][T12629] netdevsim netdevsim283 eni283np1: renamed from eth0
[ 1022.993329][T12624] Could not find device with ifindex 2000 in netnsfd 11
[ 1022.994346][T12624] Could not find netns with fd: 2000
[ 1022.995521][T12624] Cannot link a netdevsim to itself
[ 1022.996345][T12624] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).