[  515.249665] netdevsim netdevsim333 eni333np1: renamed from eth0
[  515.345818] netdevsim netdevsim541 eni541np1: renamed from eth1
[  515.566282] Could not find device with ifindex 2000 in netnsfd 11
[  515.566475] Could not find netns with fd: 2000
[  515.566565] Cannot link a netdevsim to itself
[  515.566682] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).