[  483.503383] netdevsim netdevsim391 eni391np1: renamed from eth0
[  483.504065] netdevsim netdevsim537 eni537np1: renamed from eth1
[  483.591895] Could not find device with ifindex 2000 in netnsfd 11
[  483.591991] Could not find netns with fd: 2000
[  483.592026] Cannot link a netdevsim to itself
[  483.592063] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).