[  487.197087] netdevsim netdevsim737 eni737np1: renamed from eth1
[  487.292630] netdevsim netdevsim273 eni273np1: renamed from eth0
[  487.534669] Could not find device with ifindex 2000 in netnsfd 11
[  487.534997] Could not find netns with fd: 2000
[  487.535112] Cannot link a netdevsim to itself
[  487.535241] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).