[ 1250.119849][T12783] netdevsim netdevsim394 eni394np1: renamed from eth0
[ 1250.191682][T12781] netdevsim netdevsim637 eni637np1: renamed from eth1
[ 1253.119359][T12771] Could not find device with ifindex 2000 in netnsfd 11
[ 1253.121209][T12771] Could not find netns with fd: 2000
[ 1253.122791][T12771] Cannot link a netdevsim to itself
[ 1253.124624][T12771] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).