[  488.631314] netdevsim netdevsim691 eni691np1: renamed from eth1
[  488.728108] netdevsim netdevsim429 eni429np1: renamed from eth0
[  488.957020] Could not find device with ifindex 2000 in netnsfd 11
[  488.957228] Could not find netns with fd: 2000
[  488.957322] Cannot link a netdevsim to itself
[  488.957425] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).