[  473.483341] netdevsim netdevsim466 eni466np1: renamed from eth0
[  473.484076] netdevsim netdevsim526 eni526np1: renamed from eth1
[  473.566712] Could not find device with ifindex 2000 in netnsfd 11
[  473.566854] Could not find netns with fd: 2000
[  473.566956] Cannot link a netdevsim to itself
[  473.567069] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).