[  484.242932] netdevsim netdevsim268 eni268np1: renamed from eth0
[  484.244199] netdevsim netdevsim731 eni731np1: renamed from eth1
[  484.341720] Could not find device with ifindex 2000 in netnsfd 11
[  484.341840] Could not find netns with fd: 2000
[  484.341892] Cannot link a netdevsim to itself
[  484.341953] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).