[ 1234.161958][T12604] netdevsim netdevsim480 eni480np1: renamed from eth0
[ 1234.236685][T12602] netdevsim netdevsim619 eni619np1: renamed from eth1
[ 1236.836187][T12597] Could not find device with ifindex 2000 in netnsfd 11
[ 1236.837437][T12597] Could not find netns with fd: 2000
[ 1236.838283][T12597] Cannot link a netdevsim to itself
[ 1236.839339][T12597] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).