[  484.983031] netdevsim netdevsim519 eni519np1: renamed from eth1
[  485.079967] netdevsim netdevsim424 eni424np1: renamed from eth0
[  485.306435] Could not find device with ifindex 2000 in netnsfd 11
[  485.306778] Could not find netns with fd: 2000
[  485.306867] Cannot link a netdevsim to itself
[  485.306955] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).