[  483.250684] netdevsim netdevsim680 eni680np1: renamed from eth1
[  483.352550] netdevsim netdevsim338 eni338np1: renamed from eth0
[  483.682171] Could not find device with ifindex 2000 in netnsfd 11
[  483.682343] Could not find netns with fd: 2000
[  483.682449] Cannot link a netdevsim to itself
[  483.682583] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).