[  489.256228] netdevsim netdevsim732 eni732np1: renamed from eth1
[  489.352673] netdevsim netdevsim437 eni437np1: renamed from eth0
[  489.553182] Could not find device with ifindex 2000 in netnsfd 11
[  489.553494] Could not find netns with fd: 2000
[  489.553589] Cannot link a netdevsim to itself
[  489.553684] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).