[  476.747880] netdevsim netdevsim455 eni455np1: renamed from eth0
[  476.748448] netdevsim netdevsim561 eni561np1: renamed from eth1
[  476.840867] Could not find device with ifindex 2000 in netnsfd 11
[  476.841042] Could not find netns with fd: 2000
[  476.841160] Cannot link a netdevsim to itself
[  476.841298] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).