[  483.725593] netdevsim netdevsim273 eni273np1: renamed from eth0
[  483.725981] netdevsim netdevsim519 eni519np1: renamed from eth1
[  483.824633] Could not find device with ifindex 2000 in netnsfd 11
[  483.824757] Could not find netns with fd: 2000
[  483.824846] Cannot link a netdevsim to itself
[  483.824946] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).